Journal of Experimental Orthopaedics最新文献

{"title":"Axial rotation of the hinge axis can cause changes in coronal tibial alignment in anterior tibial closing wedge osteotomy in a 3D simulation model","authors":"Julius Watrinet,&nbsp;Philipp Blum,&nbsp;Lukas Willinger,&nbsp;Julian Mehl,&nbsp;Sebastian Siebenlist,&nbsp;Markus Bormann,&nbsp;Wolfgang Böcker,&nbsp;Boris Holzapfel,&nbsp;Julian Fürmetz","doi":"10.1002/jeo2.70198","DOIUrl":"https://doi.org/10.1002/jeo2.70198","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>Clinical evidence indicates that an unintended increase in the medial proximal tibial angle (MPTA) can occur during slope-reducing tibial osteotomies, which is most relevant in anterior cruciate ligament (ACL) deficient knees. Therefore, the purpose of this three-dimensional (3D) simulation study is to assess how axial or coronal hinge axis rotation affect alignment parameters in anterior tibial closing wedge osteotomies (ACWO). The hypothesis states that a neutral hinge axis (NHA) in ACWO prevents changes in coronal and axial alignment.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>A 3D surgical simulation was used to perform ACWO with a stepwise increment of one-degree (1°–5°) rotation around thirteen different hinge axes. Surface models were created from CT scans of 49 individuals (mean PTS 11.5° ± 3.8°) resulting in 3185 simulations. A NHA not changing the coronal or axial alignment was defined as oriented parallel to the posterior tibial plateau 1 cm underneath the articular surface. Anatomical landmarks were determined for each simulation to measure the PTS, MPTA, hip-knee-ankle angle (HKA), and tibial torsion (TT). The effects of the initial MPTA or PTS on the resulting alignment parameters and the effects of axial and sagittal rotation of the joint axis were analysed for their effects on postsimulation PTS, MPTA and TT.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Clinically relevant hinge axis rotation in the coronal or axial plane below 20° did not significantly influence PTS correction (<i>p</i> &gt; 0.05). Axial rotation of the hinge axis exceeding 10° led to significant MPTA changes (&gt; +1.7° ± 0.03°) compared to the NHA (<i>p</i> &lt; 0.001). Pre-simulation MPTA had no influence on post-simulation MPTA changes (<i>p</i> &gt; 0.05).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>NHA aligned parallel to the posterior tibial plateau below the articular surface prevents significant changes in MPTA during ATCWO. This 3D simulation suggest, that hinge axis orientation requires meticulous consideration during slope-reducing osteotomies to preserve alignment integrity.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Level of Evidence</h3>\u0000 \u0000 <p>Level V, retrospective simulation study.</p>\u0000 </section>\u0000 </div>","PeriodicalId":36909,"journal":{"name":"Journal of Experimental Orthopaedics","volume":"12 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jeo2.70198","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143571335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Patients treated for infection following ACL reconstruction with graft removal have poorer outcomes than those treated with graft retention: A systematic review","authors":"Daniel C. Lewis,&nbsp;Natalya E. McNamara,&nbsp;Erin M. Tabish,&nbsp;Joseph T. Featherall,&nbsp;Hillary W. Rawson,&nbsp;Gregoire Micicoi,&nbsp;Daniel J. Song,&nbsp;Justin J. Ernat","doi":"10.1002/jeo2.70147","DOIUrl":"https://doi.org/10.1002/jeo2.70147","url":null,"abstract":"&lt;div&gt;\u0000 \u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Purpose&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;The purpose of this study was to evaluate patient outcomes following anterior cruciate ligament reconstruction (ACLR) complicated by septic arthritis treated with graft retention versus graft removal protocols. Secondarily, this study aimed to evaluate surgical, demographic and microbial surgical indications for graft retention versus graft removal. We hypothesised that patients who underwent graft removal would have worse outcomes and that patients with septic arthritis caused by more virulent organisms, such as methicillin-resistant &lt;i&gt;Staphylococcus aureus&lt;/i&gt; or &lt;i&gt;Pseudomonas aeruginosa&lt;/i&gt;, would be more likely to undergo graft removal.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Methods&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;A systematic review and meta-analysis of literature in the PubMed and Ovid databases regarding the treatment of septic arthritis following ACLR reporting graft retention versus graft removal was conducted. The included studies were published in English, in peer-reviewed journals, with an average minimum follow-up of 1 year, and reported on arthroscopic ACLR, surgical management of infection, graft retention versus graft removal during treatment and outcome measures. Patient demographic, surgical and outcome data were analysed.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Results&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Twenty-four studies reporting on 307 patients were included for analysis. Patients who underwent allograft ACLR (&lt;i&gt;p&lt;/i&gt; = 0.02) and patients with septic arthritis caused by &lt;i&gt;P. aeruginosa&lt;/i&gt; (&lt;i&gt;p&lt;/i&gt; = 0.03) were more likely to undergo graft removal. Patients treated with graft removal were treated with more irrigation and debridement procedures (2.7 ± 0.8 vs. 2. ± 1.5, &lt;i&gt;p&lt;/i&gt; &lt; 0.01). Patients treated with graft removal had increased laxity on KT-1000 measurement (3.30 ± 134 vs. 1.55 ± 1.23, &lt;i&gt;p&lt;/i&gt; &lt; 0.01), and lower 2000 International Knee Documentation Committee Subjective Knee Evaluation scores (66.57 ± 17.08 vs. 80.18 ± 15.21, &lt;i&gt;p&lt;/i&gt; = 0.02).&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Conclusions&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Septic arthritis following ACLR is a devastating complication. Both graft retention and graft removal protocols have been reported and are viable options. Patients treated with graft removal had poorer outcome measures. Septic arthritis caused by &lt;i&gt;P. aeruginosa&lt;/i&gt; and allograft ACLR were more likely to be treated with graft removal.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Clinical Relevance&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Septic arthritis following ACLR remains an uncommon, but dif","PeriodicalId":36909,"journal":{"name":"Journal of Experimental Orthopaedics","volume":"12 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jeo2.70147","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143564911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"No impact of graft size or time to surgery on anterior tibial translation under weight-bearing following ACL reconstruction","authors":"Tomas Pineda,&nbsp;Nicolas Cance,&nbsp;Michael J. Dan,&nbsp;Guillaume Demey,&nbsp;David H. Dejour","doi":"10.1002/jeo2.70130","DOIUrl":"https://doi.org/10.1002/jeo2.70130","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>The aim of this study is to evaluate the impact of graft size and time between injury to surgery (TBIS) on static anterior tibial translation (SATT) and dynamic anterior tibial translation (DATT) after anterior cruciate ligament (ACL) reconstruction.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>A consecutive series of patients treated with primary ACL reconstruction using hamstring autograft was reviewed. Preoperative SATT, DATT and posterior tibial slope (PTS) were measured with a previously validated technique by two independent reviewers on lateral weight-bearing knee radiographs. Regression analysis was performed to assess the relationship between postoperative—preoperative SATT difference (Δ SATT) and postoperative—preoperative DATT difference (Δ DATT) with graft size and TBIS.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>In total, 66 patients were included in this study. The mean preoperative SATT and DATT were 2.41 (standard deviation [SD] 2.98) and 9.09 (SD 3.19), respectively. The mean postoperative SATT and DATT were 2.14 (SD 2.47) and 5.28 (SD 2.55), respectively. The mean graft size was 8.4 mm (SD 8.4; range 7.75–10), and the median TBIS was 3 months (range 1–275). Linear regression analysis showed no correlation between graft size and Δ SATT (<i>p</i> = 0.060) and Δ DATT (<i>p</i> = 0.979) and no correlation between TBIS and Δ SATT (<i>p</i> = 0.817) and Δ DATT (<i>p</i> = 0.811).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Our results suggest that larger graft sizes or shorter times between injury and reconstruction do not impact the reduction of SATT or DATT following ACL reconstruction.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Level of Evidence</h3>\u0000 \u0000 <p>Level IV, retrospective cohort study.</p>\u0000 </section>\u0000 </div>","PeriodicalId":36909,"journal":{"name":"Journal of Experimental Orthopaedics","volume":"12 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jeo2.70130","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143555034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A new ultrasound-guided surgical technique to fix acute tibial posterior cruciate ligament avulsion fracture","authors":"Hao Luo,&nbsp;Lin-Feng Li,&nbsp;Song Han,&nbsp;Yu Pan,&nbsp;Fei-Ju Xu,&nbsp;Tao Liu","doi":"10.1002/jeo2.70191","DOIUrl":"https://doi.org/10.1002/jeo2.70191","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>This study aims to describe a novel minimally invasive technique for the treatment of acute tibial posterior cruciate ligament (PCL) avulsion fracture.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>This retrospective study included seven patients who underwent ultrasound-guided fixation for acute PCL tibial avulsion fractures by using an adjustable-loop device between January 2021 and January 2023. Before the surgery, the maximum diameter, area and displacement distance of the fragments were measured using computed tomography examination. All patients were followed up for at least 12 months, and clinical outcomes were assessed on the basis of range of motion, the International Knee Documentation Committee Score and the Lysholm score.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>For the seven patients, the mean maximum diameter, area and displacement distance of preoperative avulsion fragments were 12.7 mm (range, 9.0–48.3), 128 mm² (range, 63–256.2) and 5.9 mm (range, 3.8–7.2), respectively. These fractures were fixed using an adjustable-loop suspensory device under ultrasound guidance. Based on x-ray examination during the post-operative follow-up period, all patients had no fracture displacement and fracture unions were confirmed, with a mean union time of 10.28 ± 2.13 weeks (range, 8–14). Based on the knee function assessment at 12-month post-operative follow-up visit, all patients demonstrated excellent clinical outcomes.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Ultrasound-assisted internal fixation using an adjustable-loop device demonstrated satisfactory clinical and radiographic results. This technique has the advantages of being minimally invasive, safe, stable, convenient to operate and thus could be considered as a feasible alternative for the treatment of acute tibial PCL avulsion fractures.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Level of Evidence</h3>\u0000 \u0000 <p>Level III.</p>\u0000 </section>\u0000 </div>","PeriodicalId":36909,"journal":{"name":"Journal of Experimental Orthopaedics","volume":"12 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jeo2.70191","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143513750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Factors influencing UK arthroplasty surgeons' decision-making between total and medial unicompartmental knee surgery: A vignette-based behavioural experiment","authors":"M. Nurek,&nbsp;O. Musbahi,&nbsp;M. V. Baldacchino,&nbsp;R. Hamm,&nbsp;C. B. Hing,&nbsp;J. Cobb,&nbsp;O. Kostopoulou,&nbsp;UNITES Consortium","doi":"10.1002/jeo2.70178","DOIUrl":"https://doi.org/10.1002/jeo2.70178","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>Surgical options for end-stage knee osteoarthritis (OA) include total and medial unicompartmental knee replacement (TKR and UKR). Deciding which surgery to perform is complex and ill-defined, yet it has important implications for patients and the health service. The study aimed to identify clinical and surgeon factors predicting surgeons' preferences.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Based on a preliminary survey of 162 UK surgeons, we identified clinical features frequently considered when deciding between TKR and UKR. By systematically varying patient age, obesity, site of pain, anaesthetic risk and anterior cruciate ligament (ACL) integrity, we constructed 32 clinical vignettes. We used these in a new survey, where surgeons indicated which surgery they would recommend on an 11-point rating scale with end points anchored at ‘definitely TKR’ and ‘definitely medial UKR’. Data were analysed with mixed-effects linear regressions.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Eighty-three UK arthroplasty surgeons completed the vignettes. Preference for UKR over TKR was significantly lower for patients over 50 years (<i>b</i> = −0.57 [−0.82 to −0.33], <i>p</i> &lt; 0.001) with abnormal ACL (<i>b</i> = −1.93 [−2.17 to −1.68], <i>p</i> &lt; 0.001) and severe systemic disease (<i>b</i> = −0.46 [−0.70 to −0.21], <i>p</i> &lt; 0.001). Obesity was a weak and unreliable predictor, and we did not detect any influence of site of pain. The surgeons' habitual practice (proportion of UKRs over all knee replacements performed in a typical year) was the second strongest predictor after ACL (<i>b</i> = 1.26 [0.54–1.99], <i>p</i> = 0.001).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>ACL integrity was the most important determinant of surgeons' preferences between TKR and UKR. Their habitual practice was also a strong predictor, outweighing most clinical factors in the vignettes.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Level of Evidence</h3>\u0000 \u0000 <p>Level II, prospective cohort study.</p>\u0000 </section>\u0000 </div>","PeriodicalId":36909,"journal":{"name":"Journal of Experimental Orthopaedics","volume":"12 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jeo2.70178","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143513749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neck stabilization exercise and dynamic neuromuscular stabilization reduce pain intensity, forward head angle and muscle activity of employees with chronic non-specific neck pain: A retrospective study","authors":"Ainollah Sakinepoor,&nbsp;Zahra Ataei Cheragh,&nbsp;Hans Degens,&nbsp;Maryam Mazidi","doi":"10.1002/jeo2.70188","DOIUrl":"https://doi.org/10.1002/jeo2.70188","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>Previous investigations have associated weakness of neck muscles with a higher likelihood of developing neck pain. However, no previous investigation has examined the influence of neck stabilization exercise (NSE) and dynamic neuromuscular stabilization (DNS) on pain intensity, forward head angle (FHA) and muscle activity.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>A total of 45 female employees with chronic non-specific neck pain (CNNP) underwent measurements of pain intensity, FHA and electrical activity of muscles in a slump posture, before and after either NSE or DNS.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>After both stabilization exercise (SE) and DNS the Numeric Pain Rating Scale (NPRS) (<i>F</i> (2,39) = 17.61, <i>p</i> = 0.001, partial <i>η</i>² = 0.475) and forward head posture (FHP), (<i>F</i> (2,39) = 5.509, <i>p</i> = 0.008, partial <i>η</i>² = 0.220), had decreased. Both interventions also decreased the activity in the cervical erector spinae muscle (<i>F</i> (2,39) = 5.31, <i>p</i> = 0.009, partial <i>η</i>² = 0.214), the upper trapezius muscle (<i>F</i> (2,39) = 5.41, <i>p</i> = 0.008, partial <i>η</i>² = 0.217) in slump typing posture, but there was no significant effect on the activity in the sternocleidomastoid muscle (<i>F</i> (2,39) = 2.65, <i>p</i> = 0.083, partial <i>η</i>² = 0.120).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Both DNS and SE exercises diminished pain intensity, forward head and muscle activity after 6 weeks in patients with CNSNP.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Level of Evidence</h3>\u0000 \u0000 <p>Level I, randomized controlled trials with adequate statistical power.</p>\u0000 </section>\u0000 </div>","PeriodicalId":36909,"journal":{"name":"Journal of Experimental Orthopaedics","volume":"12 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jeo2.70188","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143513786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"All-inside single-bundle and modified double-bundle anterior cruciate ligament reconstruction techniques guarantee stability and similar clinical results at over 5 year follow-up","authors":"Moretti Lorenzo,&nbsp;Garofalo Raffaele,&nbsp;Cassano Giuseppe Danilo,&nbsp;Calbi Roberto,&nbsp;Fiore Francesco,&nbsp;Solarino Giuseppe","doi":"10.1002/jeo2.70100","DOIUrl":"https://doi.org/10.1002/jeo2.70100","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>The aim of the present study was to compare clinical and radiological outcomes between the all-inside single bundle (SB) and a modified double-bundle (DB) anterior cruciate ligament reconstructions (ACLR) at over 5-year follow-up.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>This is an observational, retrospective comparative, two-centre study. Clinical outcomes were evaluated using Lysholm and International Knee Documentation Committee (IKDC) scores, and anterior tibial translation (ATT) was assessed using the KT-1000 arthrometer. Knee x-ray images were recorded, classified according to the KL grading and compared with radiographs of the same patient before surgery. Inclusion criteria were patients undergoing ACLR, age between 18 and 45 years and negative knee history of major traumatic events after surgery. Exclusion criteria were congenital laxity, combined multiple knee ligament injuries, patients undergoing ACL revision surgery, history of infection, lower limb coronal axial deviation &gt;5°, patients undergoing lateral extra-articular tenodesis or anterolateral ligament reconstruction, patients with chondral damage Outerbridge grade &gt;2, patients with meniscal tears undergoing subtotal meniscectomy or meniscal repair and patients with knee OA Kellgren–Lawrance (KL) grade &gt;3.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>One hundred and fifty-two patients were included in the study. Patients were divided into two groups according to surgical technique: Group A—ACLR with all-inside technique, and Group B—ACLR with modified DB technique. There were no statistical differences between groups for age, side, gender or time since surgery.</p>\u0000 \u0000 <p>There were no statistically significant differences between groups for Lysholm scores (<i>p</i> = 0.43), IKDC (<i>p</i> = 0.88), ATT (<i>p</i> = 0.105) and KL grade (<i>p</i> = 0.93 before surgery, 0.99 at the fu). KL grade increased significantly since pre-op.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Our data show significant improvements in all clinical outcome measures, along with excellent KT-1000 arthrometer values and low clinical failure rates for both the SB all-inside and modified DB techniques at a mean follow-up of over 6 years. There were no significant differences in arthritic progression according to KL grade between groups.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Level of Evidence</h3>\u0000 \u0000 <p>Level III.</p>\u0000 </section>\u0000 </div>","PeriodicalId":36909,"journal":{"name":"Journal of Experimental Orthopaedics","volume":"12 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jeo2.70100","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143513734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reduced polyethylene wear in dual mobility versus single mobility hip implants: Results from quantitative and qualitative scanning electron microscopy analysis","authors":"Antonio Pompilio Gigante,&nbsp;Marco Senarighi,&nbsp;Carlo Ciccullo,&nbsp;Luca De Berardinis,&nbsp;Luca Farinelli","doi":"10.1002/jeo2.70177","DOIUrl":"https://doi.org/10.1002/jeo2.70177","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Dual mobility cup in total hip arthroplasties has gained popularity worldwide as it reduces instability providing greater range of motion. However, increased polyethylene wear remains debated. This in vitro study aimed to measure and qualitatively analyse the wear of ultra-high molecular weight polyethylene in contemporary dual mobility cup compared to conventional single mobility acetabular component.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Hip simulator was used to compare ultra-high molecular weight polyethylene wear in dual mobility and single mobility acetabular component The specimens were tested at an in vitro angle of 30° relative to the ISO standard fixated position. Flexion/extension, abduction/adduction, and internal/external rotation were simulated. Testing was stopped every 0.5 million cycles until 5.0 million cycles were reached and the liners were disassembled and weighted to assess mass loss. The test fluid was sent for scanning electron microscopy analysis and wear particles were characterized for mean equivalent circle diameter, form factor, maximum Feret diameter, minimum Feret diameter, area, perimeter and aspect ratio.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Dual mobility hip reported a lower wear respect to single mobility (20.4 and 39.6 mg/Mcy, <i>p</i> &lt; 0.01). Moreover, conventional acetabular component produced wear particles with higher equivalent circle diameter, area, perimeter, minimum and maximum Feret diameter, while aspect ratio and form factor resulted higher in dual mobility polyethylene wear. No cases of ultra-high molecular weight polyethylene rupture have been reported.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Dual mobility cup produces less wear than conventional single mobility acetabular component ensuring lower risk of instability and greater range of motion. Further studies are needed to definitively clarify the issue of wear in the dual mobility prosthesis.</p>\u0000 </section>\u0000 </div>","PeriodicalId":36909,"journal":{"name":"Journal of Experimental Orthopaedics","volume":"12 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jeo2.70177","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143497305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"12.5% of all women's and 7.7% of all men's players from the 2022 and 2023 FIFA World Cups underwent a previous anterior cruciate ligament reconstruction","authors":"Diego Costa Astur,&nbsp;Gabriel De Melo Salgado,&nbsp;Marina Dal Piva,&nbsp;David Ken Nagata Radamessi,&nbsp;Edward Patrick Sinibaldi,&nbsp;Antonio Bezerra De Albuquerque Filho,&nbsp;Hassan Ahmad Hauache Neto,&nbsp;Leonardo Adeo Ramos,&nbsp;Moisés Cohen","doi":"10.1002/jeo2.70186","DOIUrl":"https://doi.org/10.1002/jeo2.70186","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>To evaluate the incidence of anterior cruciate ligament (ACL) reconstructions in athletes who participated in the men's 2022 and women's 2023 Federation Internationale de Football Association (FIFA®) World Cups, comparing the incidence between genders, positions and the stages reached by the teams during the competition.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>This is a media analysis study, and data were collected from official club and FIFA® websites: a list of athletes who played during the men's 2022 and women's 2023 FIFA® World Cup, a list of athletes who already did an ACL reconstruction (ACLR) and rehabilitation before the competition, and stages from each team during the competition.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>12.5% of the athletes in the women's competition (92 athletes) and 7.7% in the men's competition (64 athletes) underwent ACLR surgery before. When comparing positions (goalkeeper, defence, midfield and forwards), there were no statistical differences between men (<i>p</i> = 0.97) and women (<i>p</i> = 0.26). According to the competition stage, the prevalence increased from 12.5% in the group stage to 17.4% in the finals (<i>p</i> = 0.05) for women and ranged from 6.8% to 7.9% (<i>p</i> = 0.87) among men. The number of ACL revision surgeries was 18 in women players (2.4% of total, 19.4% of those operated) and 5 in men players (0.6% of total, 7.5% of those operated). No statistical difference in revision rates between men and women (<i>p</i> = 0.16).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>In the highest football level competition in the world (FIFA® World Cup), there was no statistical difference between the number of men and women called up and who participated after ACLR, rehabilitation and return to sport (12.5% vs. 7.7%; <i>p</i> &gt; 0.05). Furthermore, the incidence of ACL-operated players belonging to each team that played in the World Cup increased from the stage of groups to the final in the female category (<i>p</i> = 0.05), but remained stable in the male category (<i>p</i> = 0.87).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Level of Evidence</h3>\u0000 \u0000 <p>Not applicable.</p>\u0000 </section>\u0000 </div>","PeriodicalId":36909,"journal":{"name":"Journal of Experimental Orthopaedics","volume":"12 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jeo2.70186","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143475803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unrepaired ramp lesions are associated with a higher risk of secondary medial meniscus bucket handle tear compared to lateral meniscus bucket handle tear after anterior cruciate ligament reconstruction","authors":"Alexander J. Hoffer,&nbsp;Ahmed Mabrouk,&nbsp;Christophe Jacquet,&nbsp;Matthieu Ollivier","doi":"10.1002/jeo2.70176","DOIUrl":"https://doi.org/10.1002/jeo2.70176","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Purpose</h3>\u0000 \u0000 <p>To compare the risk of a secondary bucket handle tear (BHT) of the medial and lateral menisci after an anterior cruciate ligament reconstruction (ACLR) with an unrecognized ramp lesion. The hypothesis was that an unrecognized ramp lesion would be associated with a secondary medial meniscus BHT more often than a lateral meniscus BHT.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>A retrospective review of adults aged 18 or older who experienced a meniscal BHT after ACLR was conducted. An analysis of the clinical and radiological data from initial injury to revision surgery was completed. Two experts retrospectively documented the prevalence of ramp lesions present on preoperative magnetic resonance imaging (MRI) at the time of the index ACLR. The predictive value of a ramp lesion for BHT laterality was evaluated using logistic regression.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Seventy-six patients, 46 in the medial BHT group and 30 in the lateral BHT group, were included. A ramp lesion was present on the preoperative MRI in 33 patients in the medial BHT group compared to 13 in the lateral BHT group (<i>p</i> = 0.02, odds ratio: 3.2, 95% confidence interval: 1.2–8.0). In the logistic regression analysis, the only independent factor that predicted the occurrence of a medial BHT compared to a lateral BHT was the presence of a ramp tear on preoperative MRI before the index ACL surgery (logworth = 1.59; <i>p</i> = 0.03).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>After a primary ACLR, an untreated ramp lesion was associated with a post-operative medial BHT more often than a lateral BHT. Unrepaired ramp lesions may be a risk factor for subsequent medial meniscus BHT after primary ACLR.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Level of Evidence</h3>\u0000 \u0000 <p>Level IV.</p>\u0000 </section>\u0000 </div>","PeriodicalId":36909,"journal":{"name":"Journal of Experimental Orthopaedics","volume":"12 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jeo2.70176","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143475757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}