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Joint line obliquity after lateral closing-wedge high tibial osteotomy does not adversely affect clinical and radiological outcome: a 5-year follow-up study
ConclusionIncreased KJLO (postoperative MPTA  ≥ 95.0°) or MPTA change ≥ 8.0° after lateral closing-wedge HTO does not adversely affect patient-reported outcome, radiological progression of osteoarthritis, or surgical survival at an average 5-year follow-up.Level of evidenceIII, retrospective cohort study. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - August 10, 2023 Category: Orthopaedics Source Type: research

Semitendinosus tendons are commonly contaminated with skin flora during graft harvest for anterior cruciate ligament reconstruction
ConclusionST autografts for ACLR were commonly contaminated with skin commensal bacteria during harvest. One-third of the isolates showed resistance to typical perioperative intravenous antibiotics, whereas all isolates were sensitive to vancomycin. Therefore, routine prophylactic decontamination of all hamstring autografts before implantation should be recommended, preferably with topical vancomycin.Level of evidenceLevel III. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - August 10, 2023 Category: Orthopaedics Source Type: research

Tibial bone defect prediction based on preoperative artefact-reduced CT imaging is superior to standard radiograph assessment
ConclusionTibial bone defect prediction based on preoperative 3D-CT segmentation showed a substantial agreement with intraoperative findings and is superior to standard radiograph assessment. The relatively small difference in defect volume between AORI I, IIa and IIb suggests that updated CT-based classifications might hold benefits for the planning of rTKA.Level of evidenceRetrospective Cohort Study; III (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - August 10, 2023 Category: Orthopaedics Source Type: research

Discoid lateral meniscus instability in children: part I. A new grading system of instability to clarify natural history
ConclusionA new presentation of DLM is presented: episodic locking phenomenon and blocked knee with flexion deficit. Clinicians should be wary of pseudo-improvement with the recovery of mobility after a period of the locked knee, which may be due to a progression towards the ultimate degree of instability. Clinical grading of instability has clarified the natural history of DLM-associated tearing.Level of evidenceIII. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - August 10, 2023 Category: Orthopaedics Source Type: research

Harvest location has a minimal impact on differences in cross-sectional area of quadriceps tendon in anterior cruciate ligament reconstruction
ConclusionThe thickness and CSA of QT was greater in the center compared to the lateral one-third at 30  mm proximal to the QT insertion point. However, the difference in value was clinically non-significant, and therefore, harvest location of the QT autograft may not meaningfully impact intraoperative graft diameter. As a result, surgeons may choose the harvest location without concern for resultant graft diameter as long as the enough length of QT is secured.Level of evidenceIII. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - August 9, 2023 Category: Orthopaedics Source Type: research

NAVIO RATKA shows similar rates of hemoglobin-drop, adverse events, readmission and early revision vs conventional TKA: a single centre retrospective cohort study
ConclusionsThis study further validates the usage of NAVIO RATKA as a safe method to perform TKA, with comparable short term outcomes to CTKA in terms of early revisions and adverse events. Surgeons should be mindful of the differing adverse event profile in NAVIO RATKA and adjust their patient selection accordingly to ensure optimal outcomes. In addition, surgeons using NAVIO RATKA should expect a linear learning curve and a surgical time exceeding that of CTKA.Level of evidenceLevel III (therapeutic retrospective cohort study). (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - August 9, 2023 Category: Orthopaedics Source Type: research

Kinesiophobia contributes to worse functional and patient-reported outcome measures in Achilles tendinopathy: a systematic review
ConclusionIncreased kinesiophobia scores (>  35 points), measured by TSK are associated with worse PROMs, including increased pain, decreased quality of life, increased self-reported severity, and is also associated with poorer physical performance measures in patients with AT.Level of evidenceIV. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - August 8, 2023 Category: Orthopaedics Source Type: research

BLU-DAT: a new reliable and accurate arthrometer for measuring anterior knee laxity
ConclusionThe BLU-DAT has proven to be an instrument with good intra- and inter-observer reliability and very good accuracy in the diagnosis of ACL injuries in the outpatient setting. So, the BLU-DAT can be a new useful tool in everyday clinical practice to assist in the diagnosis of ACL injury.Level of evidenceII. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - August 8, 2023 Category: Orthopaedics Source Type: research

Exploring the potential of ChatGPT as a supplementary tool for providing orthopaedic information
ConclusionOverall, ChatGPT was successful in generating correct responses in approximately 65% of the cases related to ACL surgery. The findings of this study imply that LLMs offer potential as a supplementary tool for acquiring orthopaedic knowledge. However, although ChatGPT can provide guidance and effectively adapt to diverse target audiences, it cannot supplant the expertise of orthopaedic sports medicine surgeons in diagnostic and treatment planning endeavours due to its limited understanding of orthopaedic domains and its potential for erroneous responses.Level of evidenceV. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - August 8, 2023 Category: Orthopaedics Source Type: research

Higher age and present injury at the start of the season are risk factors for in-season injury in amateur male and female football players —a prospective cohort study
ConclusionAt any given week, almost one in five male and one in four female amateur football players reported new or ongoing injuries. Hip/groin injuries were more frequent in males, while female players had a higher prevalence of knee injuries. Older players and those with an existing injury at the start of the season were more prone to new injury during the season. Rehabilitation of pre-season injury and complaints are key to reduce the injury burden in amateur football.Level of evidenceLevel II.Trial registration number NCT04272047, Clinical trials (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - August 5, 2023 Category: Orthopaedics Source Type: research

Radiographic OA, bone marrow lesions, higher body mass index and medial meniscal root tears are significantly associated with medial meniscus extrusion with OA or medial meniscal tears: a systematic review and meta-analysis
ConclusionRadiographic OA, bone marrow lesions, cartilage damage, and higher BMI were significantly associated with concomitant MME with OA. Furthermore, medial meniscal root and radial tears were significantly associated with an increased risk of MME in patients with MMT.Level of evidenceIV. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - July 21, 2023 Category: Orthopaedics Source Type: research

Developmental stage and lower quadriceps flexibilities and decreased gastrocnemius flexibilities are predictive risk factors for developing Osgood –Schlatter disease in adolescent male soccer players
ConclusionPHV age  ± 6 months at baseline, apophyseal stage of the tibial tuberosity at baseline, quadriceps flexibility ≥ 35° at baseline, and decrease in gastrocnemius flexibility in 6 months are predictive risk factors of OSD development in the support leg among adolescent male soccer players. It is crucial to know the PHV age of each player, and not only the flexibility of quadriceps muscle but also the gastrocnemius should be monitored to predict OSD.Level of evidenceII. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - July 21, 2023 Category: Orthopaedics Source Type: research

Development of a machine learning model to predict lateral hinge fractures by analyzing patient factors before open wedge high tibial osteotomy
ConclusionTwo types of ensemble models, LGBM with MLP and LR with MLP, were developed as machine learning models to predict LHF with high predictive performance. Using these models, surgeons can identify important features to prevent LHF and establish strategies by adjusting modifiable factors.Study designRetrospective cohort study.Level of evidence3. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - July 21, 2023 Category: Orthopaedics Source Type: research

The reverse fragility index: RCTs reporting non-significant differences in failure rates between hamstring and bone –patellar tendon–bone autografts have fragile results
ConclusionThe results of RCTs reporting statistically non-significant re-rupture/revision ACLR rates between HT and BTB autografts would become significant if the outcome were reversed in a small number of patients —a number that was less than the loss to follow-up in the majority of studies. Thus, the neutrality of these studies is fragile, and a true statistically significant difference in re-rupture/revision rates may have been undetected.Level of evidenceLevel I. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - July 21, 2023 Category: Orthopaedics Source Type: research

Micro-fragmented adipose tissue (mFAT) associated with arthroscopic debridement provides functional improvement in knee osteoarthritis: a randomized controlled trial
ConclusionmFAT improves functional outcome and MRI appearance when used in association with AD, therefore supporting its use in the treatment of knee OA in an arthroscopic setting. (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - July 21, 2023 Category: Orthopaedics Source Type: research