Sportverletzung Sportschaden : Organ der Gesellschaft fur Orthopadisch-Traumatologische Sportmedizin最新文献

{"title":"[Development of a Shoulder Prevention Program for Overhead Sports: GOTS Shoulder Guard: Train Smart, Perform Strong!]","authors":"Arne Ritterbusch, Casper Grim, Thomas Tischer, Christoph Lutter, Frieder Mauch, Knut Beitzel, Romain Seil, Matthias Wilhelm Hoppe","doi":"10.1055/a-2937-3214","DOIUrl":"https://doi.org/10.1055/a-2937-3214","url":null,"abstract":"<p><strong>Background: </strong>Shoulder injuries have a substantial impact on health economics in overhead sports. While prevention programs for knee injuries have already been extensively investigated, there remains a substantial research gap regarding shoulder injuries. This study aimed to develop a new, practical prevention program for shoulder injuries in overhead sports.</p><p><strong>Methods: </strong>To develop the program, a literature search was conducted to identify evidence-based risk factors and prevention programs in overhead sports. To ensure the highest possible level of evidence, only systematic reviews and randomized controlled trials (RCTs) were included. In addition, a 25-item online survey on epidemiology, diagnostics, prevention and implementation was conducted among 30 internationally recognized prevention experts. The survey was carried out by the Prevention Committee of the Society for Orthopaedic Traumatologic Sports Medicine (GOTS). The findings were subsequently discussed by consensus and integrated into a novel prevention program incorporating established principles of exercise and training science.</p><p><strong>Results: </strong>Based on the results of three systematic reviews (five evidence-based, modifiable risk factors) and five RCTs (five different prevention programs, all demonstrating positive effects) as well as the expert survey (with the primary requirement being for an evidence-based, practical, and time-efficient program) and the integration of established principles of exercise and training science (circuit training methodology, progression through block periodization, and repetition numbers until muscular fatigue), the \"GOTS Shoulder Guard: Train Smart, Perform Strong!\" was developed. The prevention program focuses primarily on controlling scapulothoracic mobility, mobilizing the glenohumeral joint, strengthening the external rotators, mobilizing/stabilizing the kinetic chain, and stabilizing the glenohumeral joint.</p><p><strong>Conclusion: </strong>The \"GOTS Shoulder Guard\" differs from existing prevention programs through its stronger evidence base and the application of established principles of exercise and training science. These principles allow for a more practical, time-efficient and individualized load control, taking into account the athlete's performance level and fluctuations. Further evaluation studies are required to verify the effectiveness, compliance and feasibility of the program.</p>","PeriodicalId":520779,"journal":{"name":"Sportverletzung Sportschaden : Organ der Gesellschaft fur Orthopadisch-Traumatologische Sportmedizin","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2026-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149229850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of Spinal Alignment, Mobility, Core Endurance, Scapular Dyskinesia, and Upper Extremity Function in Volleyball Players and Asymptomatic Individuals.","authors":"Elif Yeşilay Büyükdere, Sevtap Günay Uçurum, Kevser Şevik Kaçmaz","doi":"10.1055/a-2928-9892","DOIUrl":"https://doi.org/10.1055/a-2928-9892","url":null,"abstract":"<p><strong>Objectives: </strong>Asymmetrical, repetitive, high-impact, fast movements in volleyball can lead to muscle strength imbalances, reducing both strength and endurance due to inefficiencies in shoulder and spinal movement patterns. This study aimed to compare spinal alignment, mobility, trunk endurance, scapular dyskinesis, and upper-extremity function and power between volleyball players and asymptomatic individuals.</p><p><strong>Methods: </strong>This case-control study included 27 female elite volleyball players (median age: 23 (20-32) years) and 27 asymptomatic women matched for age and body mass index (median age: 24 (21-29) years). Spinal alignment and mobility were assessed with a skin-surface device (Hocoma, Valedo Shape, Idiag GmbH, Switzerland), trunk endurance with the McGill Endurance Test, scapular mobility with the Lateral Scapular Slide Test, upper extremity balance with the Y Balance Test, stability with the Closed Kinetic Chain Upper Extremity Stability Test, and power with the Medicine Ball Throwing Test.</p><p><strong>Results: </strong>Scapular mobility asymmetry, throwing distance at chest level, upper-extremity inferolateral balance, extensor and lateral trunk endurance, and sagittal spinal inclination angles were higher in the athlete group (p < 0.05). Thoracic, lumbar, and sacral angles and spinal mobility were similar between the groups (p > 0.05).</p><p><strong>Conclusion: </strong>The athlete group demonstrated greater spinal stability, trunk endurance, and upper extremity balance, a lower risk of scapular dyskinesis, and improved chest-level throwing abilities. Considering the body as a kinetic chain, trunk and scapular stabilization and endurance appear to play a key role in upper-extremity function and performance in volleyball players. Therefore, assessing trunk and scapular stability and endurance, as well as upper-extremity performance, is essential for volleyball players.</p>","PeriodicalId":520779,"journal":{"name":"Sportverletzung Sportschaden : Organ der Gesellschaft fur Orthopadisch-Traumatologische Sportmedizin","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2026-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148993680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Beyond Rehabilitation: Triangulating Return-to-Activity and Return-to-Sport Decisions in Golfers with Back Pain.","authors":"Slavko Rogan, Hannu Luomajoki, Tamara Lehmann, Pascal Rhunke, Eefje Luijckx","doi":"10.1055/a-2919-2895","DOIUrl":"https://doi.org/10.1055/a-2919-2895","url":null,"abstract":"<p><strong>Background: </strong>Non‑specific low back pain (NSLBP) is highly prevalent among golfers and complicates return‑to‑activity (RTA) decisions. Existing return‑to‑sport (RTS) approaches often focus narrowly on biomedical criteria and lack golf‑specific, theoretically grounded frameworks. This study presents a preliminary conceptual framework (Phase 1) for RTA and RTS in golfers with NSLBP.</p><p><strong>Methods and material: </strong>A hermeneutic systematic literature review was combined with qualitative expert interviews to integrate scientific evidence and clinical expertise. Seven studies on RTA/RTS and NSLBP were analyzed iteratively, and three experts in physiotherapy, sports science, and back pain research were interviewed using a theory-driven Phase 1 sampling approach. Data were analyzed via qualitative content analysis and triangulated to develop a context-sensitive conceptual model.</p><p><strong>Results: </strong>Psychosocial and functional variables such as motivation, self-efficacy, fear avoidance, and functional mobility appeared to be particularly important within the available literature and expert interviews, whereas biomedical indicators alone seemed insufficient to guide RTA/RTS decisions. Experts described RTA as an individualized, goal oriented, biopsychosocial process. The combined evidence yielded a three-stage RTA framework (pain relief, mobility restoration, return to meaningful activity) and a five-phase golf-specific RTS model (clinical stability, functional capacity, golf movement integration, performance readiness, competition readiness).</p><p><strong>Conclusion: </strong>This Phase‑1 conceptual framework provides an evidence‑informed, context‑sensitive structure for RTA and RTS in golfers with NSLBP. It integrates biopsychosocial factors with golf‑specific performance demands. Future work (Phase 2) will validate this framework with golfer populations and objective performance metrics.</p>","PeriodicalId":520779,"journal":{"name":"Sportverletzung Sportschaden : Organ der Gesellschaft fur Orthopadisch-Traumatologische Sportmedizin","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2026-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148993681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Outcomes of Surgical Treatment for Patellar Tendinopathy with Particular Consideration of Patella Alta].","authors":"Ronja Zonsius, Felix Zimmermann, Emmanouil Liodakis, Peter Balcarek","doi":"10.1055/a-2919-3044","DOIUrl":"https://doi.org/10.1055/a-2919-3044","url":null,"abstract":"<p><strong>Introduction: </strong>Patella alta is considered an intrinsic risk factor for patellar tendinopathy. From a biomechanical perspective, distalizing tibial tubercle osteotomy (d-TTO) can improve the force relationship between the patellar tendon and the quadriceps tendon, thereby representing a potential surgical indication in cases of recalcitrant patellar tendinopathy and concomitant patella alta. However, clinical evidence supporting this approach remains scarce.</p><p><strong>Methods: </strong>A total of 23 patients (21 male, 2 female; age: 34 ± 7.8 years) who underwent arthroscopic patellar tendon debridement between January 2018 and September 2022 were included. In nine patients, an additional d-TTO was performed to correct patella alta. Based on the preoperative Caton-Deschamps Index (CDI), patients were assigned to one of three groups: (1) patella norma group (n=8; CDI 1.04 ± 0.07), (2) borderline group (n=6; CDI 1.25 ± 0.05), and (3) patella alta group (n=9; CDI 1.35 ± 0.13). The latter group was treated with an additional d-TTO. Outcomes were assessed using the Victorian Institute of Sport Assessment-Patella (VISA-P) questionnaire, the patellofemoral subscale of the Knee Osteoarthritis and Outcome Score (KOOS-PF), and the Marx Activity Rating Scale (MARS).</p><p><strong>Results: </strong>The follow-up period was 43.7 ± 9.4 months. Across the overall cohort, the VISA-P score improved significantly from 33.6 ± 19.7 points preoperatively to 86.4 ± 14 points postoperatively (p < 0.0001). Similarly, the KOOS-PF score increased significantly from 30.5 ± 21.4 points preoperatively to 78.6 ± 21.2 points postoperatively (p < 0.0001). The MARS increased non-significantly from 5.7 ± 6.0 to 6.5 ± 5.8 (p = 0.6). Preoperatively, there were no significant differences between groups. Postoperatively, however, the KOOS-PF score was significantly lower in the borderline group (56.5 ± 26.5 points) compared with both the patella norma group (87.8 ± 13.3 points) and the corrected patella alta group (85.1 ± 11.9 points) (p = 0.006). A similar trend was observed for the VISA-P score (93.7 ± 7.6 vs. 76.8 ± 19.3 vs. 86.2 ± 11.6; p = 0.075), although this did not reach statistical significance (P = 0.075).</p><p><strong>Conclusion: </strong>Surgical treatment of patients with recalcitrant patellar tendinopathy resulted in significant improvements in both VISA-P and KOOSPF scores. Simultaneous correction of patella alta achieved outcomes comparable to the patella norma group. The findings also suggest that a high-normal Caton-Deschamps Index (Borderline group) may influence postoperative outcomes.</p>","PeriodicalId":520779,"journal":{"name":"Sportverletzung Sportschaden : Organ der Gesellschaft fur Orthopadisch-Traumatologische Sportmedizin","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2026-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148922609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Acute Effects of Brock String-Based Visuo-Oculomotor Training on Postural Stability and Reactive Motor Performance in Athletes: A Pilot Study.","authors":"Ebru Tekin, Berat Kurt, Melda Koçan, Emine Seray Kaya, Fatma Unver","doi":"10.1055/a-2914-2145","DOIUrl":"https://doi.org/10.1055/a-2914-2145","url":null,"abstract":"<p><strong>Background: </strong>Balance and reactive performance in ball sports rely on effective visuomotor and sensorimotor integration. Although Hemsball places considerable demands on visual processing, eye-hand coordination, and postural control, the acute effects of visual-oculomotor training on sport-related performance remain unclear. This pilot study investigated the immediate effects of a Brock string-based visual-oculomotor training program on postural stability, eye-hand coordination, and reactive visuomotor performance in Hemsball athletes.</p><p><strong>Methods: </strong>Twenty-seven Hemsball athletes (mean age: 10.22 ± 0.57 years) participated in a single-group pre-post intervention study. Participants completed a single session of a Brock string-based visual-oculomotor training that combined progressive vergence exercises with balance and lower-extremity motor tasks. Static balance (Flamingo Balance Test), eye-hand coordination (Alternative Hand Wall Toss Test), and reactive visuomotor performance (Reactive 90/90 Wall Toss Test) were assessed before and immediately after the intervention. Pre-post comparisons were performed using paired-sample t-tests or Wilcoxon signed-rank tests, and effect sizes were reported as Cohen's dz or r, as appropriate.</p><p><strong>Results: </strong>Following the intervention, significant improvements were observed in static balance (p = 0.023, r = 0.436), eye-hand coordination (p = 0.004, r = 0.556), the number of correct responses (p < 0.001, r = 0.661), and a reduction in the number of errors (p = 0.006, r = 0.524) during the Reactive 90/90 Wall Toss Test. Mean reaction time also decreased significantly (p = 0.049, Cohen's dz = 0.415). The largest effect was observed for response accuracy, whereas the improvement in reaction time was comparatively smaller.</p><p><strong>Conclusion: </strong>Acute Brock string-based visual-oculomotor training was associated with improvements in postural stability, eye-hand coordination, response accuracy, error rate, and reaction time in Hemsball athletes. However, given the single-group design and the absence of a control group, these findings should be interpreted with caution. Randomized controlled studies are needed to determine whether these preliminary improvements represent true intervention effects beyond practice-related and other non-specific influences.</p>","PeriodicalId":520779,"journal":{"name":"Sportverletzung Sportschaden : Organ der Gesellschaft fur Orthopadisch-Traumatologische Sportmedizin","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148876191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Relationship Between Upper Extremity Performance, Core Endurance, and Balance in Adolescent Football Players.","authors":"Aslıhan Parlak, Zeynep Hoşbay, Berivan Beril Kılıç, Hüseyin Kavak","doi":"10.1055/a-2912-1378","DOIUrl":"https://doi.org/10.1055/a-2912-1378","url":null,"abstract":"<p><strong>Objectives: </strong>Upper extremity performance is a key component of the kinetic chain, facilitating force transfer and postural control during football-specific tasks. This study aimed to investigate the relationship between upper extremity stability, core muscle endurance, and dynamic balance in adolescent football players to clarify how upper body performance relates to overall athletic capacity. It was hypothesized that upper extremity performance, core muscle endurance, and dynamic balance would be positively associated.</p><p><strong>Methods: </strong>This observational study evaluated 52 male adolescent football players (13.25±1.08 years) who regularly trained for at least 60 minutes on two or more days per week and had participated in organized team football for at least one year. Assessments included the Closed Kinetic Chain Upper Extremity Stability Test (CKCUEST), Upper Quarter Y-Balance Test (UQYBT), core muscle endurance tests, and Lower Quarter Y-Balance Test (LQYBT), and the relationships among these measures were analyzed.</p><p><strong>Results: </strong>No significant differences were observed between dominant and non-dominant sides in LQYBT and most UQYBT directions (p>0.05), except for lower superolateral reach on the dominant side (p=0.036). CKCUEST performance was positively correlated with UQYBT (r=0.371-0.433, p<0.05) and core muscle endurance (r=0.580-0.695, p<0.001). UQYBT performance was also associated with the LQYBT composite scores (r=0.506-0.529, p<0.001) and core muscle endurance (r=0.285-0.569, p<0.05), while LQYBT performance correlated with core flexion and extension endurance (r=0.280-0.576, p<0.05).</p><p><strong>Conclusion: </strong>Upper extremity performance plays an important role in the athletic performance of adolescent football players and is associated with core muscle endurance and lower extremity dynamic balance, supporting the concept of balance as an integrated bodily function. The findings suggest that integrated stability and balance training may enhance athletic performance and support injury prevention.</p>","PeriodicalId":520779,"journal":{"name":"Sportverletzung Sportschaden : Organ der Gesellschaft fur Orthopadisch-Traumatologische Sportmedizin","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2026-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148836108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Hip Joint Loading during Sports Activities after Hip Replacement: Is There Still Room for More? Subjective and Objective Aspects].","authors":"Michael Morlock, Georg Friedrich Grauer, Philipp Damm, Friedrich Böttner","doi":"10.1055/a-2716-8001","DOIUrl":"10.1055/a-2716-8001","url":null,"abstract":"<p><strong>Abstract: </strong>Hip joint replacement with total hip arthroplasty is a frequently performed and highly successful treatment option that is increasingly being offered to younger patients. Due to their longer life expectancy, the longevity expectations for the endoprosthesis have also increased. Physical activity and sports have a positive effect on the risk of loosening. There is no scientific evidence that participation in any specific sport adversely affects the longevity of a hip endoprosthesis. Nevertheless, recommendations to patients vary widely from surgeon to surgeon, and some types of sport are still generally discouraged. This article provides an overview of both recent and older studies addressing the question \"What sports are still permissible with an artificial hip?\" It attempts to clarify that high joint forces are not necessarily associated with high risk of damage, as the anatomy of muscles and bones, together with muscle function, is optimised to accomodate higher loads. High forces pose a risk only if they are applied in directions not physiologically intended or if the implant is poorly anchored in the bone. The principle that only sports which can be performed with sufficient coordination should be undertaken is therefore certainly correct. Overall, patients should be encouraged to engage in activities in which they feel comfortable and are aware of their own limitations and risks. Hip resurfacing represents an option for a carefully selected patient population, potentially allowing for a return to elite sports. However, the indication requires careful consideration of the local and systemic risks associated with metal-on-metal articulations, as well as the patient's age and athletic aspirations. The extent to which new developments without a metal-on-metal articulation may allow for an expanded indication must be carefully evaluated. Clear guidance from the surgeon to the patient regarding the timeline and postoperative activity following hip replacement with an H-TEP or hip resurfacing is necessary to support patient confidence.</p>","PeriodicalId":520779,"journal":{"name":"Sportverletzung Sportschaden : Organ der Gesellschaft fur Orthopadisch-Traumatologische Sportmedizin","volume":" ","pages":"146-151"},"PeriodicalIF":0.4,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145491383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[The Importance of the Dynamic Leg Axis: Biomechanical Influences on Total Knee Arthroplasty and Joint Load].","authors":"Leandra Bauer, Julia Kirschberg, Georg Matziolis, Matthias Woiczinski","doi":"10.1055/a-2766-9763","DOIUrl":"10.1055/a-2766-9763","url":null,"abstract":"<p><strong>Abstract: </strong>In routine clinical practice, static radiographic imaging has become the standard method for assessing the leg axis in the frontal plane. With increasing use of functional analyses, such as motion analysis, the focus is shifting more towards the dynamic leg axis. The dynamic axis of the knee joint plays a critical role in the wear of total knee arthroplasty (TKA) components, as it influences load distribution and movement patterns in the femorotibial joint. In particular, the knee adduction moment (KAM) affects the inlay during medial loading, which exhibits wear at high loading frequencies. Studies indicate that KAM increases with varus alignment, leading to uneven load distribution and greater stress on the medial compartment. In-vitro and post-mortem analyses quantify the annual material loss in the inlay, with prosthesis design and alignment influencing wear rates. The dynamic leg axis and gait patterns can further modify wear; for example, a \"toe-in\" gait pattern significantly reduces KAM and may therefore represent a non-surgical option to mitigate wear. More recent approaches, such as kinematic alignment, aim for a more natural positioning of the prosthesis, which does not necessarily increase wear but, compared with mechanical alignment, may preserve a pre-arthritic varus or valgus axis. In summary, a dynamic evaluation of the leg axis may contribute to preoperative planning and wear reduction in TKA, while static radiological axis assessment will remain clinically relevant.</p>","PeriodicalId":520779,"journal":{"name":"Sportverletzung Sportschaden : Organ der Gesellschaft fur Orthopadisch-Traumatologische Sportmedizin","volume":" ","pages":"138-145"},"PeriodicalIF":0.4,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146184189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Correction: Hip Joint Loading during Sports Activities after Hip Replacement: Is There Still Room for More? Subjective and Objective Aspects].","authors":"Michael Morlock, Georg Friedrich Grauer, Philipp Damm, Friedrich Böttner","doi":"10.1055/a-2744-3149","DOIUrl":"10.1055/a-2744-3149","url":null,"abstract":"","PeriodicalId":520779,"journal":{"name":"Sportverletzung Sportschaden : Organ der Gesellschaft fur Orthopadisch-Traumatologische Sportmedizin","volume":" ","pages":"e1"},"PeriodicalIF":0.4,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145544867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Friction in Hip Implants and Its Possible Consequences: In-Vivo versus In-Vitro].","authors":"Stefan Schroeder, Maurice Weiss, Julian Niklas Zierke, Philipp Damm","doi":"10.1055/a-2878-2338","DOIUrl":"https://doi.org/10.1055/a-2878-2338","url":null,"abstract":"<p><strong>Abstract: </strong>Hip arthroplasty demonstrates excellent long-term outcomes with low revision rates. However, an increasingly younger and physically active patient population with high functional demands on the artificial joint has led to increased material-specific requirements. Friction between the articulating components of an artificial hip joint is a relevant factor that may ultimately determine implant longevity. The aim is to keep friction as low as possible in order to avoid excessive loading at the implant-bone interface, as this can lead to loosening of the artificial hip joint. Friction in the hip joint is multifactorial and can be influenced by patient-specific, implant-specific and surgery-related factors. Therefore, it is highly relevant for arthroplasty research to investigate friction under varying implantation angles, patient activities, and material combinations. In-vivo studies can be used to investigate friction directly in the patient under physiological conditions. Individual influencing factors, on the other hand, can be optimally investigated in in-vitro simulations, as possible confounding variables can be controlled and kept constant. The various approaches to measuring friction and the results from the literature to date are summarized below. In addition, the advantages and disadvantages of the various measurement methods are discussed, and an outlook is given on the possibility of combining in-vivo and in-vitro friction tests to further optimize patient care in total hip arthroplasty.</p>","PeriodicalId":520779,"journal":{"name":"Sportverletzung Sportschaden : Organ der Gesellschaft fur Orthopadisch-Traumatologische Sportmedizin","volume":"40 3","pages":"120-128"},"PeriodicalIF":0.4,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148709325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}