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ORTHOPEDICS AND TRAUMATOLOGY (150 journals)                     

Showing 1 - 152 of 152 Journals sorted alphabetically
Acta Orthopaedica     Open Access   (Followers: 32)
Advances in Orthopedics     Open Access   (Followers: 9)
American Journal of Orthodontics and Dentofacial Orthopedics     Hybrid Journal   (Followers: 8)
American Journal of Orthopedics     Partially Free   (Followers: 3)
Archives of Orthopaedic and Trauma Surgery     Hybrid Journal   (Followers: 9)
Archives of Osteoporosis     Hybrid Journal   (Followers: 1)
Arthritis und Rheuma     Hybrid Journal  
Arthroplasty Today     Open Access   (Followers: 1)
Australasian Musculoskeletal Medicine     Full-text available via subscription   (Followers: 5)
BMC Musculoskeletal Disorders     Open Access   (Followers: 29)
Bone & Joint 360     Full-text available via subscription   (Followers: 18)
Bone Research     Hybrid Journal   (Followers: 2)
Burns & Trauma     Open Access   (Followers: 11)
Cartilage     Hybrid Journal   (Followers: 5)
Case Reports in Orthopedic Research     Open Access  
Case Reports in Orthopedics     Open Access   (Followers: 6)
Chinese Journal of Traumatology     Open Access  
Cleft Palate-Craniofacial Journal     Hybrid Journal   (Followers: 8)
Clinical Medicine Insights : Arthritis and Musculoskeletal Disorders     Open Access   (Followers: 3)
Clinical Orthopaedics and Related Research     Hybrid Journal   (Followers: 78)
Clinical Trials in Orthopedic Disorders     Open Access   (Followers: 1)
Concussion     Open Access  
Craniomaxillofacial Trauma and Reconstruction     Hybrid Journal   (Followers: 1)
Current Orthopaedic Practice     Hybrid Journal   (Followers: 14)
Current Reviews in Musculoskeletal Medicine     Open Access   (Followers: 13)
Der Orthopäde     Hybrid Journal   (Followers: 6)
Die Wirbelsäule     Hybrid Journal  
Duke Orthopedic Journal     Open Access   (Followers: 5)
East African Orthopaedic Journal     Full-text available via subscription  
EFORT Open Reviews     Open Access   (Followers: 1)
Egyptian Orthopaedic Journal     Open Access   (Followers: 1)
EMC - Técnicas Quirúrgicas - Ortopedia y Traumatología     Full-text available via subscription  
EMC - Tecniche Chirurgiche - Chirurgia Ortopedica     Full-text available via subscription  
Ergonomics     Hybrid Journal   (Followers: 22)
European Journal of Orthopaedic Surgery & Traumatology     Hybrid Journal   (Followers: 9)
European Journal of Podiatry / Revista Europea de Podología     Open Access   (Followers: 1)
European Spine Journal     Hybrid Journal   (Followers: 24)
Foot & Ankle International     Hybrid Journal   (Followers: 10)
Foot & Ankle Orthopaedics     Open Access   (Followers: 3)
Gait & Posture     Hybrid Journal   (Followers: 17)
Geriatric Orthopaedic Surgery Rehabilitation     Open Access   (Followers: 5)
Global Spine Journal     Open Access   (Followers: 12)
Hip International     Hybrid Journal  
Indian Journal of Orthopaedics     Open Access   (Followers: 8)
Informationen aus Orthodontie & Kieferorthopädie     Hybrid Journal  
Injury     Hybrid Journal   (Followers: 20)
International Journal of Orthopaedic and Trauma Nursing     Hybrid Journal   (Followers: 11)
International Journal of Orthopaedic Surgery     Open Access   (Followers: 5)
International Journal of Orthopaedics     Open Access   (Followers: 2)
International Journal of Research in Orthopaedics     Open Access  
International Musculoskeletal Medicine     Hybrid Journal   (Followers: 7)
International Orthopaedics     Hybrid Journal   (Followers: 18)
JAAOS : Global Research & Reviews     Open Access   (Followers: 1)
JBJS Journal of Orthopaedics for Physician Assistants     Hybrid Journal  
JBJS Reviews     Full-text available via subscription   (Followers: 11)
JOR Spine     Open Access   (Followers: 3)
Journal de Traumatologie du Sport     Full-text available via subscription   (Followers: 2)
Journal für Mineralstoffwechsel & Muskuloskelettale Erkrankungen     Hybrid Journal  
Journal of Bone and Joint Diseases     Open Access   (Followers: 4)
Journal of Bone and Joint Infection     Open Access   (Followers: 1)
Journal of Brachial Plexus and Peripheral Nerve Injury     Open Access   (Followers: 4)
Journal of Cachexia, Sarcopenia and Muscle     Open Access   (Followers: 2)
Journal of Children's Orthopaedics     Open Access   (Followers: 10)
Journal of Clinical Orthopaedics and Trauma     Hybrid Journal   (Followers: 5)
Journal of Experimental Orthopaedics     Open Access   (Followers: 8)
Journal of Hand Surgery (European Volume)     Hybrid Journal   (Followers: 44)
Journal of Head Trauma Rehabilitation     Hybrid Journal   (Followers: 17)
Journal of Musculoskeletal Research     Hybrid Journal   (Followers: 9)
Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie     Hybrid Journal  
Journal of Orthodontic Science     Open Access   (Followers: 2)
Journal of Orthopaedic & Sports Physical Therapy     Full-text available via subscription   (Followers: 68)
Journal of Orthopaedic Association of South Indian States     Open Access   (Followers: 5)
Journal of Orthopaedic Diseases and Traumatology     Open Access   (Followers: 5)
Journal of Orthopaedic Reports     Full-text available via subscription   (Followers: 8)
Journal of Orthopaedic Research     Hybrid Journal   (Followers: 29)
Journal of Orthopaedic Science     Hybrid Journal   (Followers: 4)
Journal of Orthopaedic Surgery     Open Access   (Followers: 1)
Journal of Orthopaedic Surgery and Research     Open Access   (Followers: 8)
Journal of Orthopaedic Translation     Open Access  
Journal of Orthopaedic Trauma     Hybrid Journal   (Followers: 15)
Journal of Orthopaedics     Full-text available via subscription   (Followers: 3)
Journal of Orthopaedics and Allied Sciences     Open Access   (Followers: 9)
Journal of Orthopaedics and Spine     Open Access   (Followers: 3)
Journal of Orthopaedics and Traumatology     Open Access   (Followers: 16)
Journal of Orthopaedics, Trauma and Rehabilitation     Open Access   (Followers: 6)
Journal of Orthopedics & Rheumatology     Open Access  
Journal of Orthopedics, Traumatology and Rehabilitation     Open Access   (Followers: 6)
Journal of Pediatric Orthopaedics     Hybrid Journal   (Followers: 15)
Journal of Prosthetics and Orthotics     Hybrid Journal   (Followers: 14)
Journal of Scleroderma and Related Disorders     Hybrid Journal  
Journal of the American Academy of Orthopaedic Surgeons     Hybrid Journal   (Followers: 12)
Journal of the American Podiatric Medical Association     Full-text available via subscription   (Followers: 8)
Journal of Traumatic Stress     Hybrid Journal   (Followers: 25)
Knee Surgery, Sports Traumatology, Arthroscopy     Hybrid Journal   (Followers: 27)
Multiple Sclerosis and Related Disorders     Hybrid Journal   (Followers: 8)
Musculoskeletal Care     Hybrid Journal   (Followers: 19)
Musculoskeletal Science and Practice     Hybrid Journal   (Followers: 3)
Nigerian Journal of Orthopaedics and Trauma     Open Access  
North American Spine Society Journal (NASSJ)     Open Access   (Followers: 3)
OA Orthopaedics     Open Access   (Followers: 7)
Obere Extremität     Hybrid Journal   (Followers: 1)
Open Journal of Orthopedics     Open Access   (Followers: 3)
Open Journal of Orthopedics and Rheumatology     Open Access  
Open Journal of Trauma     Open Access  
Open Orthopaedics Journal     Open Access  
Operative Orthopädie und Traumatologie     Hybrid Journal  
Operative Techniques in Orthopaedics     Full-text available via subscription   (Followers: 6)
Orthopädie & Rheuma     Full-text available via subscription  
Orthopädie und Unfallchirurgie up2date     Hybrid Journal  
Orthopaedic Journal of Sports Medicine     Open Access   (Followers: 14)
Orthopaedic Nursing     Hybrid Journal   (Followers: 11)
Orthopaedic Proceedings     Partially Free  
Orthopaedic Surgery     Open Access   (Followers: 1)
Orthopaedics & Traumatology: Surgery & Research     Full-text available via subscription   (Followers: 6)
Orthopaedics and Trauma     Full-text available via subscription   (Followers: 28)
Orthopedic Clinics of North America     Full-text available via subscription   (Followers: 5)
Orthopedic Research and Reviews     Open Access   (Followers: 6)
Orthopedic Reviews     Open Access   (Followers: 7)
Orthopedics     Full-text available via subscription   (Followers: 6)
Orthoplastic Surgery     Open Access  
Osteoarthritis and Cartilage     Full-text available via subscription   (Followers: 20)
Osteoarthritis and Cartilage Open     Open Access  
Osteologie     Hybrid Journal  
Osteoporosis and Sarcopenia     Open Access  
OTA International     Open Access  
Paediatric Orthopaedics and Related Sciences     Open Access   (Followers: 3)
Pain Management in General Practice     Full-text available via subscription   (Followers: 12)
Prosthetics and Orthotics International     Hybrid Journal   (Followers: 8)
Revista Brasileira de Ortopedia     Hybrid Journal  
Revista Chilena de Ortopedia y Traumatología / Chilean Journal of Orthopaedics and Traumatology     Open Access  
Revista Colombiana de Ortopedia y Traumatología     Full-text available via subscription  
Revista Cubana de Ortopedia y Traumatologí­a     Open Access  
Revista de la Asociación Argentina de Ortopedia y Traumatología     Open Access  
Revista Española de Cirugía Ortopédica y Traumatología     Full-text available via subscription   (Followers: 1)
Revista Portuguesa de Ortopedia e Traumatologia     Open Access  
Revue de Chirurgie Orthopédique et Traumatologique     Full-text available via subscription   (Followers: 3)
Romanian Journal of Orthopaedic Surgery and Traumatology     Open Access  
SA Orthopaedic Journal     Open Access   (Followers: 2)
SICOT-J     Open Access   (Followers: 1)
Spine     Hybrid Journal   (Followers: 73)
Spine Journal     Hybrid Journal   (Followers: 26)
Sport-Orthopädie - Sport-Traumatologie - Sports Orthopaedics and Traumatology     Full-text available via subscription   (Followers: 3)
Strategies in Trauma and Limb Reconstruction     Open Access   (Followers: 1)
Techniques in Orthopaedics     Hybrid Journal   (Followers: 6)
Therapeutic Advances in Musculoskeletal Disease     Hybrid Journal   (Followers: 5)
Trauma     Hybrid Journal   (Followers: 5)
Trauma (Travma)     Open Access  
Trauma und Berufskrankheit     Hybrid Journal  
Traumatology     Full-text available via subscription   (Followers: 1)
Traumatology and Orthopedics of Russia     Open Access  
Zeitschrift für Orthopädie und Unfallchirurgie     Hybrid Journal   (Followers: 2)
Ортопедия, травматология и протезирование     Open Access  

           

Similar Journals
Journal Cover
Cartilage
Journal Prestige (SJR): 0.889
Citation Impact (citeScore): 3
Number of Followers: 5  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 1947-6035 - ISSN (Online) 1947-6043
Published by Sage Publications Homepage  [1174 journals]
  • Rehabilitation Variability Following Osteochondral Autograft and Allograft
           Transplantation of the Knee

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      Authors: Stephen G. Crowley, Anthony Pedersen, Thomas A. Fortney, Hasani W. Swindell, Bryan M. Saltzman, Charles A. Popkin, David P. Trofa
      Abstract: CARTILAGE, Volume 13, Issue 2, April-June 2022.
      ObjectiveThe aim of this study is to assess the variability of postoperative rehabilitation protocols used by orthopedic surgery residency programs for osteochondral autograft transplantation (OAT) and osteochondral allograft transplantation (OCA) of the knee.DesignOnline postoperative OAT and OCA rehabilitation protocols from US orthopedic programs and the scientific literature were reviewed. A custom scoring rubric was developed to analyze each protocol for the presence of discrete rehabilitation modalities and the timing of each intervention.ResultsA total of 16 programs (10.3%) from 155 US academic orthopedic programs published online protocols and a total of 35 protocols were analyzed. Twenty-one protocols (88%) recommended immediate postoperative bracing following OAT and 17 protocols (100%) recommended immediate postoperative bracing following OCA. The average time protocols permitted weight-bearing as tolerated (WBAT) was 5.2 weeks (range = 0-8 weeks) following OAT and 6.2 weeks (range = 0-8 weeks) following OCA. There was considerable variation in the inclusion and timing of strength, proprioception, agility, and pivoting exercises. Following OAT, 2 protocols (8%) recommended functional testing as criteria for return to sport at an average time of 12.0 weeks (range = 12-24 weeks). Following OCA, 1 protocol (6%) recommended functional testing as criteria for return to sport at an average time of 12.0 weeks (range = 12-24 weeks).ConclusionA minority of US academic orthopedic programs publish OAT and OCA rehabilitation protocols online. Among the protocols currently available, there is significant variability in the inclusion of specific rehabilitation components and timing of many modalities. Evidence-based standardization of elements of postoperative rehabilitation may help improve patient care and subsequent outcomes.
      Citation: CARTILAGE
      PubDate: 2022-06-28T09:49:06Z
      DOI: 10.1177/19476035221093071
      Issue No: Vol. 13, No. 2 (2022)
       
  • Elevated Patellofemoral and Tibiofemoral T1ρ Relaxation Times Following a
           First Time Patellar Dislocation

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      Authors: John J. Elias, Mei Li, Mingrui Yang, Richard Lartey, John P. Murray, Lutul D. Farrow, Carl S. Winalski, Xiaojuan Li
      Abstract: CARTILAGE, Volume 13, Issue 2, April-June 2022.
      ObjectiveThe study was performed to evaluate cartilage within the knee following a first-time patellar dislocation, using elevated MRI-based T1ρ relaxation times as an indicator of low proteoglycan concentration. The hypothesis is that MRI-based T1ρ relaxation times for patellofemoral and tibiofemoral cartilage are significantly longer for knees being treated for patellar dislocation than for healthy control knees.DesignTwenty-one subjects being treated for a first-time, unilateral dislocation of the patella and 16 healthy controls participated in MRI-based T1ρ relaxation time mapping. Mean relaxation times were quantified for patellofemoral and tibiofemoral regions for injured knees, the contralateral knees, and healthy controls. T1ρ values for each region were compared between the 3 groups with generalized estimating equations. Linear regressions were also performed to correlate T1ρ relaxation times with time from injury.ResultsThe knees with a disloction had longer T1ρ relaxation times than the contralateral knees and control group at the medial patella and longer relaxation times than the control group at the lateral tibia (P < 0.05). T1ρ relaxation times at the medial patella also decreased with time from injury (r2 = 0.21, P = 0.037).ConclusionsCompositional changes to cartilage on the medial patella are related to traumatic impact during a dislocation. Potential exists for cartilage properties at the medial patella to improve with time. Cartilage degradation at the lateral tibia is not directly related to traumatic impact. The current baseline data are a starting point to characterize the pathway from a first-time dislocation to progressive cartilage degradation and osteoarthritis.
      Citation: CARTILAGE
      PubDate: 2022-06-09T05:47:27Z
      DOI: 10.1177/19476035221102570
      Issue No: Vol. 13, No. 2 (2022)
       
  • Incidence of (Osteo)Chondral Lesions of the Ankle in Isolated Syndesmotic
           Injuries: A Systematic Review and Meta-Analysis

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      Authors: Jari Dahmen, Sohaib Jaddi, Noortje C. Hagemeijer, Bart Lubberts, Inger N. Sierevelt, Sjoerd A.S. Stufkens, Pieter d’Hooghe, John G. Kennedy, James D. F. Calder, Christopher W. DiGiovanni, Gino M. M. J. Kerkhoffs
      Abstract: CARTILAGE, Volume 13, Issue 2, April-June 2022.
      ObjectiveTo determine and compare the incidence rate of (osteo)chondral lesions of the ankle in patients with acute and chronic isolated syndesmotic injuries.DesignA literature search was conducted in the PubMed (MEDLINE) and EMBASE (Ovid) databases from 2000 to September 2021. Two authors independently screened the search results, and risk of bias was assessed using the MINORS (Methodological Index for Non-Randomized Studies) criteria. Studies on acute and chronic isolated syndesmotic injuries with pre-operative or intra-operative imaging were included. The primary outcome was the incidence rate with corresponding 95% confidence intervals (CIs) of (osteo)chondral lesions of the ankle in combined and separate groups of acute and chronic syndesmotic injuries. Secondary outcomes were anatomic distribution and mean size of the (osteo)chondral lesions.ResultsNine articles (402 syndesmotic injuries) were included in the final analysis. Overall (osteo)chondral lesion incidence was 20.7% (95% CI: 13.7%-29.9%). This rate was 22.0% (95% CI: 17.1-27.7) and 24.1% (95% CI: 15.6-35.2) for acute and chronic syndesmotic injuries, respectively. In the combined acute and chronic syndesmotic injury group, 95.4% of the lesions were located on the talar dome and 4.5% of the lesions were located on the distal tibia. (Osteo)chondral lesion size was not reported in any of the studies.ConclusionsThis meta-analysis shows that (osteo)chondral lesions of the ankle are present in 21% of the patients with isolated syndesmotic injuries. No difference in incidence rate was found between the different syndesmotic injury types and it can be concluded that the majority of lesions are located on the talar dome.PROSPERO Registration Number:CRD42020176641
      Citation: CARTILAGE
      PubDate: 2022-06-03T01:54:11Z
      DOI: 10.1177/19476035221102569
      Issue No: Vol. 13, No. 2 (2022)
       
  • Global Variation in Studies of Articular Cartilage Procedures of the Knee:
           A Systematic Review

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      Authors: R. Garrett Steinmetz, J. Jared Guth, Matthew J. Matava, Matthew V. Smith, Robert H. Brophy
      Abstract: CARTILAGE, Volume 13, Issue 2, April-June 2022.
      ObjectiveThe objective of this study was to determine whether there are significant differences in terms of indications, techniques, patient variables, and objective and subjective outcome scores as a function of the geographic locale of published studies of knee articular cartilage surgery.MethodsAn electronic database search was performed of clinical studies evaluating knee articular cartilage procedures from 2000 to 2021. Studies were separated into global regions (Europe, Asia, North America, and South America) based on the study country. All cartilage-based treatments in each region were recorded. Patient age and sex, mechanism of injury, cartilage lesion size and location, follow-up time, failure rate, and knee outcome scores utilized were summarized and compared by region.ResultsA total of 2,923 studies were analyzed. Eighty level 1 and 2 studies met the inclusion criteria. The majority were from Europe (n = 60), followed by Asia (n = 11), North America (n = 7), and South America (n = 2). The majority of procedures in European and North American studies were cell-based and marrow-stimulation procedures. In Asian studies, the most common procedures were marrow-stimulation, experimental, and biologic procedures as defined by the authors. Asian countries had a higher proportion of females (P < 0.001) and an overall older patient population (P < 0.001). Regional variation was also seen in terms of lesion location, mechanism of injury, and failure rate.ConclusionMost high-level evidence for articular cartilage-based procedures of the knee comes from European countries. These studies vary by patient age and sex, anatomic location, and mechanism of injury. Global variation should be taken into consideration when interpreting and applying studies of knee articular cartilage surgery.
      Citation: CARTILAGE
      PubDate: 2022-05-17T06:06:51Z
      DOI: 10.1177/19476035221098169
      Issue No: Vol. 13, No. 2 (2022)
       
  • The Role of Interleukin-4 and Interleukin-10 in Osteoarthritic Joint
           Disease: A Systematic Narrative Review

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      Authors: E.M. van Helvoort, E. van der Heijden, J.A.G. van Roon, N. Eijkelkamp, S.C. Mastbergen
      Abstract: CARTILAGE, Volume 13, Issue 2, April-June 2022.
      ObjectiveA fusion protein of interleukin-4 and interleukin-10 (IL4-10 FP) was developed as a disease-modifying osteoarthritis drug (DMOAD), and chondroprotection, anti-inflammation, and analgesia have been suggested. To better understand the mechanisms behind its potential as DMOAD, this systematic narrative review aims to assess the potential of IL-4, IL-10 and the combination of IL-4 and IL-10 for the treatment of osteoarthritis. It describes the chondroprotective, anti-inflammatory, and analgesic effects of IL-4, IL-10, and IL4-10 FP.DesignPubMed and Embase were searched for publications that were published from 1990 until May 21, 2021 (moment of search). Key search terms were: Osteoarthritis, Interleukin-4, and Interleukin-10. This yielded 2,479 hits, of which 43 were included in this review.ResultsIL-4 and IL-10 showed mainly protective effects on osteoarthritic cartilage in vitro and in vivo, as did IL4-10 FP. Both cytokines showed anti-inflammatory effects, but also proinflammatory effects. Only in vitro IL4-10 FP showed purely anti-inflammatory effects, indicating that proinflammatory effects of one cytokine can be counteracted by the other when given as a combination. Only a few studies investigated the analgesic effects of IL-4, IL-10 or IL4-10 FP. In vitro, IL-4 and IL4-10 FP were able to decrease pain mediators. In vivo, IL-4, IL-10, and IL4-10 FP were able to reduce pain.ConclusionsIn conclusion, this review describes overlapping, but also different modes of action for the DMOAD effects of IL-4 and IL-10, giving an explanation for the synergistic effects found when applied as combination, as is the case for IL4-10 FP.
      Citation: CARTILAGE
      PubDate: 2022-05-13T05:12:47Z
      DOI: 10.1177/19476035221098167
      Issue No: Vol. 13, No. 2 (2022)
       
  • Early Emergent and Progressive Aberrant Subchondral Bone Remodeling
           Coupled with Aggravated Cartilage Degeneration in Developmental Dysplasia
           of the Hip

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      Authors: Teng Ye, Feng Xue, Hai Hu, Zihao He, Minqi Wang, Zhifeng Yu, Bizeng Zhao, Linyang Chu
      Abstract: CARTILAGE, Volume 13, Issue 2, April-June 2022.
      ObjectiveDevelopmental dysplasia of the hip (DDH) is the most common skeletal development in children and could result in secondary osteoarthritis. This study aims to clarify the alternations of subchondral trabecular bone remodeling and microstructural properties during the development of DDH, and the potential influence of these alternations on the overlying cartilage degeneration and DDH progression.DesignTraditional straight-leg swaddling method was adopted to establish DDH model in newborn Sprague Dawley rats. Hip joint specimens from normal or DDH rats were used. Typical features of DDH in radiological examination were observed by x-ray analysis. Micro–computed tomography analysis was applied to evaluate the microstructural properties of subchondral bone at postnatal weeks 2, 4, and 6. Histological and immunohistochemical analyses were adopted to appraise subchondral bone remodeling activity and cartilage degeneration. The associations among subchondral bone, articular cartilage, and DDH severity were analyzed via multiple linear regression analysis.ResultsCompared with control group, the subchondral bone in DDH group displayed a gradual trend of deteriorated microstructure and worsening biomechanical properties along with aberrant bone remodeling, which might be responsible for the inhibition of stress transmission from the articular cartilage to the subchondral bone and thus leading to the cartilage degeneration and accelerated DDH progression.ConclusionsOur findings indicate that alternations of subchondral trabecular bone in a time-dependent manner could contribute to the DDH progression and the amelioration on subchondral bone might be a favorable therapeutic candidate for DDH.
      Citation: CARTILAGE
      PubDate: 2022-05-13T05:09:48Z
      DOI: 10.1177/19476035221098165
      Issue No: Vol. 13, No. 2 (2022)
       
  • Extracellular Vesicles from Hypoxic Pretreated Urine-Derived Stem Cells
           Enhance the Proliferation and Migration of Chondrocytes by Delivering
           miR-26a-5p

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      Authors: Sha Wan, Dingsu Bao, Jia Li, Kefu Lin, Qi Huang, Qiang Li, Lang Li
      Abstract: CARTILAGE, Volume 13, Issue 2, April-June 2022.
      ObjectiveStem-cell therapy is a promising treatment for cartilage defects. The newly identified urine-derived stem cells (USCs), which have multipotency and sufficient proliferative ability, are promising candidates for several tissue engineering therapies. In this study, we investigated the role of USC extracellular vehicles (EVs) in promoting the proliferation and migration of chondrocytes.DesignUSCs were characterized by measuring induced multipotent differentiation and flow cytometry analysis of surface marker expression. The EVs were isolated from USCs under normoxic conditions (nor-EVs) and hypoxic conditions (hypo-EVs). Transmission electron microscopy and western blot analysis characterized the EVs. The chondrocytes were cultured in the USC-EVs. CCK-8 assay and EdU staining detected the proliferation of chondrocytes, and transwell assay detected their migration. miR-26a-5p expression in EVs was detected by quantitative real-time polymerase chain reaction (qRT-PCR). The target relationship of miR-26a-5p and phosphatase and tensin homolog (PTEN) was predicted and confirmed. The roles of EVs-miR-26a-5p and PTEN on the proliferation and migration of chondrocytes were also investigated.ResultsHypo-EVs showed a superior effect in promoting the proliferation and migration of chondrocytes than nor-EVs. Mechanistically, USC-EVs delivered miR-26a-5p into chondrocytes to overexpress miR-26a-5p. PTEN was identified as an miR-26a-5p target in chondrocytes. The effects of EVs-miR-26a-5p on promoting the proliferation and migration of chondrocytes were mediated by its regulation of PTEN.ConclusionOur study suggested that hypoxic USC-EVs may represent a promising strategy for osteoarthritis by promoting the proliferation and migration of chondrocytes via miR-26a-5p transfer.
      Citation: CARTILAGE
      PubDate: 2022-05-12T09:44:35Z
      DOI: 10.1177/19476035221077401
      Issue No: Vol. 13, No. 2 (2022)
       
  • The Current Status of Clinical Trials on Biologics for Cartilage Repair
           and Osteoarthritis Treatment: An Analysis of ClinicalTrials.gov Data

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      Authors: Zijun Zhang, Lew Schon
      Abstract: CARTILAGE, Volume 13, Issue 2, April-June 2022.
      ObjectiveBiologics are increasingly used for cartilage repair and osteoarthritis (OA) treatment. This study aimed to provide an overview of the clinical trials conducted on this subject.DesignTwo-word combinations of two sets of key words “cartilage”; “joint”; “osteoarthritis” and “biologics”; “stem cells”; “cell implantation” were used to search the database of ClinicalTrials.gov and supplemented with searches of PubMed and EMbase. The registered trials were analyzed for clinical conditions, completion status, phases, and investigated biologics. Recently completed trials with posted/published results were summarized.ResultsFrom 2000 to 2022, a total of 365 clinical trials were registered at ClinicalTrials.gov to use biologics for cartilage repair and OA treatment. Since 2006, the number of registered trials accelerated at an annual rate of 16.4%. Of the 265 trials designated with a phase, 72% were early Phase 1, Phase 1, and Phase 2. Chondrocytes and platelet-rich plasma (PRP) were studied in nearly equal number of early- and late-stage trials. Mesenchymal stem/stromal cells (MSCs) were the most commonly investigated biologics (38%) and mostly derived from bone marrow and adipose tissue (70%). In last 5 years, 32 of the 72 completed trials posted/published results, among which seven Phase 3 trials investigated chondrocytes, PRP, bone marrow aspirate concentrate, hyaluronic acid, collagen membrane, and albumin.ConclusionsThere was a rapid increase in the number of registered clinical trials in recent years, using a variety of biologics for cartilage repair and OA treatment. Majority of the biologics still require late-stage trials to validate their clinical effectiveness.
      Citation: CARTILAGE
      PubDate: 2022-05-12T06:47:34Z
      DOI: 10.1177/19476035221093065
      Issue No: Vol. 13, No. 2 (2022)
       
  • Single-Dose Intra-Cartilage Delivery of Kartogenin Using a Cationic
           Multi-Arm Avidin Nanocarrier Suppresses Cytokine-Induced
           Osteoarthritis-Related Catabolism

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      Authors: Tengfei He, Irfhan Shaw, Armin Vedadghavami, Ambika G. Bajpayee
      Abstract: CARTILAGE, Volume 13, Issue 2, April-June 2022.
      ObjectiveKartogenin (KGN) has proven as a both chondrogenic and chondroprotective drug for osteoarthritis (OA) therapy. However, being a small hydrophobic molecule, KGN suffers from rapid joint clearance and inability to penetrate cartilage to reach chondrocytes following intra-articular administration. As such multiple high doses are needed that can lead to off-target effects including stimulation and tissue outgrowth. Here we design charge-based cartilage targeting formulation of KGN by using a multi-arm cationic nano-construct of Avidin (mAv) that can rapidly penetrate into cartilage in high concentrations owing to weak-reversible electrostatic binding interactions with negatively charged aggrecan-glycosaminoglycans (GAGs) and form an extended-release drug depot such that its therapeutic benefit can be reaped in just a single dose.DesignWe synthesized 2 novel formulations, one with a releasable ester linker (mAv-OH-KGN, release half-life ~58 h) that enables sustained KGN release over 2 weeks and another with a non-releasable amide linker (mAv-NH-KGN) that relies on mAv’s ability to be uptaken and endocytosed by chondrocytes for drug delivery. Their effectiveness in suppressing cytokine-induced catabolism was evaluated in vitro using cartilage explant culture model.ResultsA single 100 μM dose of cartilage homing mAv-KGN was significantly more effective in suppressing cytokine-induced GAG loss, cell death, inflammatory response and in rescuing cell metabolism than a single dose of free KGN; multiple doses of free KGN were needed to match this therapeutic response.ConclusionmAv mediated delivery of KGN is promising and can facilitate clinical translation of KGN for OA treatment with only a single dose.
      Citation: CARTILAGE
      PubDate: 2022-04-30T11:28:54Z
      DOI: 10.1177/19476035221093072
      Issue No: Vol. 13, No. 2 (2022)
       
  • A Pre-Clinical Animal Study for Zonal Articular Cartilage Regeneration
           

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      Authors: Ching Ann Tee, Zheng Yang, Yingnan Wu, Xiafei Ren, Maciej Baranski, Daryl Jimian Lin, Afizah Hassan, Jongyoon Han, Eng Hin Lee
      Abstract: CARTILAGE, Volume 13, Issue 2, April-June 2022.
      ObjectiveThe zonal properties of articular cartilage critically contribute to the mechanical support and lubrication of the tissue. Current treatments for articular cartilage have yet to regenerate this zonal architecture, thus compromising the functional efficacy of the repaired tissue and leading to tissue degeneration in the long term. In this study, the efficacy of zonal cartilage regeneration through bilayered implantation of expanded autologous zonal chondrocytes was investigated in a porcine chondral defect model.DesignAutologous chondrocytes extracted from articular cartilage in the non-weight bearing trochlea region of the knee were subjected to an expansion-sorting strategy, integrating dynamic microcarrier (dMC) culture, and spiral microchannel size-based zonal chondrocyte separation. Zonal chondrocytes were then implanted as bilayered fibrin hydrogel construct in a porcine knee chondral defect model. Repair efficacy was compared with implantation with cell-free fibrin hydrogel and full thickness (FT) cartilage-derived heterogenous chondrocytes. Cartilage repair was evaluated 6 months after implantation.ResultsSufficient numbers of zonal chondrocytes for implantation were generated from the non-weight bearing cartilage. Six-month repair outcomes showed that bilayered implantation of dMC-expanded zonal chondrocytes resulted in substantial recapitulation of zonal architecture, including chondrocyte arrangement, specific Proteoglycan 4 distribution, and collagen alignment, that was accompanied by healthier underlying subchondral bone.ConclusionThese results demonstrate that with appropriate expansion and isolation of zonal chondrocytes, the strategy of stratified zonal chondrocyte implantation represents a significant advancement to Autologous Chondrocyte Implantation-based cartilage regeneration, with the potential to improve the long-term integrity of the regenerated tissues.
      Citation: CARTILAGE
      PubDate: 2022-04-21T02:00:39Z
      DOI: 10.1177/19476035221093063
      Issue No: Vol. 13, No. 2 (2022)
       
  • Validating a Semi-Automated Technique for Segmenting Femoral Articular
           Cartilage on Ultrasound Images

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      Authors: Matthew S. Harkey, Nicholas Michel, Christopher Kuenze, Ryan Fajardo, Matt Salzler, Jeffrey B. Driban, Ilker Hacihaliloglu
      Abstract: CARTILAGE, Volume 13, Issue 2, April-June 2022.
      ObjectiveTo validate a semi-automated technique to segment ultrasound-assessed femoral cartilage without compromising segmentation accuracy to a traditional manual segmentation technique in participants with an anterior cruciate ligament injury (ACL).DesignWe recruited 27 participants with a primary unilateral ACL injury at a pre-operative clinic visit. One investigator performed a transverse suprapatellar ultrasound scan with the participant’s ACL injured knee in maximum flexion. Three femoral cartilage ultrasound images were recorded. A single expert reader manually segmented the femoral cartilage cross-sectional area in each image. In addition, we created a semi-automatic program to segment the cartilage using a random walker-based method. We quantified the average cartilage thickness and echo-intensity for the manual and semi-automated segmentations. Intraclass correlation coefficients (ICC2,k) and Bland-Altman plots were used to validate the semi-automated technique to the manual segmentation for assessing average cartilage thickness and echo-intensity. A dice correlation coefficient was used to quantify the overlap between the segmentations created with the semi-automated and manual techniques.ResultsFor average cartilage thickness, there was excellent reliability (ICC2,k = 0.99) and a small mean difference (+0.8%) between the manual and semi-automated segmentations. For average echo-intensity, there was excellent reliability (ICC2,k = 0.97) and a small mean difference (−2.5%) between the manual and semi-automated segmentations. The average dice correlation coefficient between the manual segmentation and semi-automated segmentation was 0.90, indicating high overlap between techniques.ConclusionsOur novel semi-automated segmentation technique is a valid method that requires less technical expertise and time than manual segmentation in patients after ACL injury.
      Citation: CARTILAGE
      PubDate: 2022-04-19T12:27:47Z
      DOI: 10.1177/19476035221093069
      Issue No: Vol. 13, No. 2 (2022)
       
  • Low-Intensity Pulsed Ultrasound Enhances the Efficacy of Bone
           Marrow–Derived MSCs in Osteoarthritis Cartilage Repair by Regulating
           Autophagy-Mediated Exosome Release

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      Authors: Peng Xia, Qi Wang, Jiulong Song, Xiaoju Wang, Xinwei Wang, Qiang Lin, Kai Cheng, Anliang Chen, Xueping Li
      Abstract: CARTILAGE, Volume 13, Issue 2, April-June 2022.
      ObjectiveThe present study explored whether low-intensity pulsed ultrasound (LIPUS) enhances the therapeutic efficacy of mesenchymal stem cells (MSCs) in osteoarthritis (OA) cartilage repair by regulating autophagy-mediated exosome release.DesignMSCs were isolated from the rat bone marrow and treated with rapamycin, 3-methyladenine, or LIPUS. The mechanism of the LIPUS-stimulated exosome release by MSCs was analyzed by inhibiting autophagy. In addition, the MSCs were co-cultured with OA chondrocytes and stimulated by LIPUS, with or without exosome release inhibitor intervention. The exosome release was detected through transmission electron microscopy (TEM), nanoparticle tracking analysis, and biomarker expression analysis. Autophagy was analyzed through TEM, autophagy-related gene expression analysis, and immunofluorescence analysis in vitro. Furthermore, a rat knee OA model was constructed and treated with MSCs, GW4869, and LIPUS. The cartilage repair was assessed through histopathological analysis and extracellular matrix protein expression analysis.ResultsThe in vitro results indicated that LIPUS promoted MSC exosome release by activating autophagy. The in vivo results demonstrated that LIPUS significantly enhanced the positive effects of MSCs on OA cartilage. These effects were significantly blocked by GW4869, an inhibitor of exosome release.ConclusionsLIPUS can enhance the therapeutic efficacy of MSCs in OA cartilage repair, and the underlying mechanism is related to the increase in autophagy-mediated exosome release.
      Citation: CARTILAGE
      PubDate: 2022-04-19T12:23:26Z
      DOI: 10.1177/19476035221093060
      Issue No: Vol. 13, No. 2 (2022)
       
 
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