Patients with trochlear dysplasia have dysplastic medial femoral epiphyseal plates
ConclusionThe medial epiphyseal plate was dysplastic in patients with trochlea dysplasia. There is a significant positive correlation between the surface area of the medial epiphyseal plate, medial TPD, height of the medial condyle and capacity of the proximal trochlear groove, which can be used to evaluate the developmental stage of the trochlea in clinical practice and to guide targeted treatment of trochlear dysplasia.Level of evidenceIII. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 25, 2023 Category: Orthopaedics Source Type: research

Costal chondrocyte-derived pellet-type scaffold-free autologous chondrocyte implantation provided acceptable mid-term outcomes in osteochondral defects with up to 10-mm depth
ConclusionCCP-ACI provided acceptable mid-term outcomes in ODs up to 10-mm in depth without bone grafting despite of no scaffold. The procedure can be one of minimally invasive treatment options for ODs without scaffold-related problems.Level of evidenceIV. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 25, 2023 Category: Orthopaedics Source Type: research

Discoid lateral meniscus instability in children: part  II.: Repair first to minimise the saucerisation
ConclusionIn contrast to adult knees, symptomatic discoid lateral meniscus is rarely stable in children (5%). Meniscal repair is effective to preserve the meniscus tissue, but revision repair became necessary in 18% of the cases and was finally successful.Level of evidence Level III. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 25, 2023 Category: Orthopaedics Source Type: research

Contralateral hamstring autografts do not provide benefit compared to ipsilateral hamstring autografts in primary or revision anterior cruciate ligament reconstruction: a systematic review
ConclusionContralateral hamstring autografts results in comparable muscle strength to ipsilateral hamstring autografts, with the exception of weaker hamstring strengths in the early postoperative period. Patient-reported outcome measures were similar between the two groups across both primary and revision ACLR, with rates of instability and failure being similar between groups for primary ACLR. Contralateral hamstring grafts do not provide additional benefit when compared to ipsilateral options for either primary or revision ACLR, and should be used only in select circumstances including insufficient ipsilateral hamstring ...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 21, 2023 Category: Orthopaedics Source Type: research

Greater self-efficacy, psychological readiness and return to sport amongst paediatric patients compared with adolescents and young adults, 8 and 12  months after ACL reconstruction
ConclusionsA larger proportion of paediatric patients had returned to sport compared with adolescents and young adults 8 and 12  months after ACL reconstruction. Paediatric patients also reported higher self-efficacy and greater psychological readiness to return to sport at 8 and 12 months than the other two groups. No differences in terms of muscle function tests when comparing paediatric patients, adolescents and young a dults were found.Level of evidenceII. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 20, 2023 Category: Orthopaedics Source Type: research

Limited preoperative knee extension in anterior cruciate ligament reconstruction using a hamstring tendon affects improvement of postoperative knee extensor strength
ConclusionKey factors in achieving the necessary knee extensor strength criteria for return to sports at 6  months post-ACL reconstruction include addressing limited preoperative knee extension and achieving an LSI ≥ 72% in knee extensor strength at 3 months postoperatively.Level of evidenceLevel III. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 19, 2023 Category: Orthopaedics Source Type: research

Effect of posteromedial vertical capsulotomy with medial collateral ligament liberation on intraoperative medial component gap mismatch between extension and mid-flexion during total knee arthroplasty
ConclusionsPosteromedial vertical capsulotomy increased the medial component gaps during knee extension but not during mid-flexion or full flexion during posterior-stabilized TKA. Posteromedial vertical capsulotomy improved mild medial component gap mismatch between extension and mid-flexion and full flexion during posterior-stabilized TKA. Surgeons can consider posteromedial vertical capsulotomy when there is intraoperative constriction of the medial component gap during extension in patients undergoing posterior-stabilized TKA. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 18, 2023 Category: Orthopaedics Source Type: research

Lateral trochlear inclination measured by the transepicondylar axis holds potential for evaluating trochlear dysplasia in patients with lateral patellar dislocation
ConclusionThe LTI can be reliably measured by MRI, but LTIp could potentially decrease the recorded value from the actual inclination angle. LTIs and LTIa are more appropriate to serve as trochleoplasty indications for patients with LPD, which could help orthopedists with surgical decision-making.Level of evidenceLevel III. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 18, 2023 Category: Orthopaedics Source Type: research

Return-to-performance in elite soccer players after Achilles tendon ruptures: a study using a weighted plus/minus metric and matched-control analysis
ConclusionNo differences were found between athletes suffering from ATRs and controls regarding the weighted PM metric.Level of evidenceIII. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 18, 2023 Category: Orthopaedics Source Type: research

Functional positioning principles for image-based robotic-assisted TKA achieved a higher Forgotten Joint Score at 1 year compared to conventional TKA with restricted kinematic alignment
ConclusionFunctional positioning principles using an image-based robotic-assisted system achieved a higher Forgotten Joint Score 1  year after TKA compared to restricted kinematic alignment. Personalised alignment and implant positioning are interesting paths to improve the functional outcomes after TKA.Level of evidenceIII. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 18, 2023 Category: Orthopaedics Source Type: research

Knees with anteromedial osteoarthritis show a substantial phenotypic variation prior and following medial unicompartmental knee arthroplasty
ConclusionThere is a substantial variation in CPAK phenotypes among knees with anteromedial OA, as well as following treatment with medial UKA. This variability challenges the assumption of uniform characteristics among knees with an identical wear pattern associated with anteromedial OA and emphasizes the complexity and variability of this specific form of OA.Level of evidenceIII, Retrospective cohort study. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 17, 2023 Category: Orthopaedics Source Type: research

Higher success rate observed in reconstruction techniques of acute posterolateral corner knee injuries as compared to repair: an updated systematic review
ConclusionThere remains substantial heterogeneity in the surgical techniques of acute, grade III PLC injuries with an overall failure rate of 12.4%. Failure rates were significantly lower, and return to sport rates higher in patients undergoing PLC reconstruction compared to repair. The most common postoperative complication was arthrofibrosis requiring manipulation under anesthesia.Level of evidenceLevel IV. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 17, 2023 Category: Orthopaedics Source Type: research

Arthroscopic all-inside ligament repair has similar or superior clinical outcomes compared to open repair for chronic ankle instability without concomitant intra-articular pathology at 5  years follow-up
ConclusionOpen and arthroscopic ligament repair to treat chronic ankle instability without concomitant intra-articular pathology produced excellent comparable clinical outcomes at 5  years follow-up. The complications were minimal in both study groups with no significant differences in AOFAS and FAAM-SS scores. However, arthroscopic repair showed significantly better results on the FFI. Therefore, when treating chronic lateral ankle instability, surgeons should consider arthro scopic ligament repair.Level of evidenceIII. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 16, 2023 Category: Orthopaedics Source Type: research

Impact of hyaluronic acid injection on the knee joint friction
ConclusionThe results of this in vitro study suggested that the friction of cadaveric knee joint tissues does not increase with progressing degeneration. Moreover, hyaluronic acid viscosupplementation does not lead to an initial decrease in knee joint friction. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 16, 2023 Category: Orthopaedics Source Type: research

A spaced retraining schedule with 2-day interval improves the acquisition and retention of simulation-based basic arthroscopic skills
ConclusionThe 2-day retraining schedule was the most effective for the acquisition and retention of basic arthroscopic skills and could be integrated into arthroscopic skills curricula. After a 3-month follow-up, residents who followed this schedule showed better skill retention than those who followed the 1-week interval schedule.Level of evidenceLevel I. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 14, 2023 Category: Orthopaedics Source Type: research