International Biomechanics最新文献

Effects of core-lower limb coordinated Pilates on gait and balance in women with flexible pes planus: a pilot randomized controlled trial. 核心-下肢协调普拉提对柔韧性扁平足患者步态和平衡的影响：一项随机对照试验。

International Biomechanics Pub Date : 2026-12-01 Epub Date: 2025-12-18 DOI: 10.1080/23335432.2025.2604318

Hyun Ju Kim, Il Bong Park, Chae Kwan Lee

{"title":"Effects of core-lower limb coordinated Pilates on gait and balance in women with flexible pes planus: a pilot randomized controlled trial.","authors":"Hyun Ju Kim, Il Bong Park, Chae Kwan Lee","doi":"10.1080/23335432.2025.2604318","DOIUrl":"10.1080/23335432.2025.2604318","url":null,"abstract":"In this pilot randomized controlled trial, we assessed the effects of a core-lower limb coordinated Pilates exercise on gait and postural balance in women with bilateral flexible pes planus. Twenty-two women aged 34.64 ± 9.59 years with bilateral navicular drop ≥10 mm assessed by the navicular drop test (NDT) were randomly assigned to either a Pilates training group or a control group. Gait parameters - including foot off, step time, stride time, walking speed, and cadence - were assessed using a validated three-dimensional motion analysis system. Postural balance was quantified as center of pressure (COP) sway in both anterior - posterior (AP) and mediolateral (ML) directions, including range, velocity, and root mean square (RMS), using a force plate. Gait and balance were evaluated at baseline and after the 8-week intervention. Significant improvements were observed in step-time (p = .014), stride-time (p = .045), and cadence (p = .033), as well as postural balance variables, particularly in ML-RMS (p = .003), for the Pilates group compared to the control group. These results suggest that Pilates exercise may benefit gait and postural balance in individuals with flexible pes planus.","PeriodicalId":52124,"journal":{"name":"International Biomechanics","volume":"13 1","pages":"1-16"},"PeriodicalIF":0.0,"publicationDate":"2026-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12720672/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145783608","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}

引用次数: 0

Total wrist fusions alter scapular kinematics during functional task performance. 全腕融合改变肩胛骨运动在功能性任务的执行。

International Biomechanics Pub Date : 2026-12-01 Epub Date: 2026-10-19 DOI: 10.1080/23335432.2026.2747911

Hannah Verity, Alexander Waslen, Laura Sims, Angelica E Lang

{"title":"Total wrist fusions alter scapular kinematics during functional task performance.","authors":"Hannah Verity, Alexander Waslen, Laura Sims, Angelica E Lang","doi":"10.1080/23335432.2026.2747911","DOIUrl":"10.1080/23335432.2026.2747911","url":null,"abstract":"Total wrist fusion is a surgical procedure used to manage pain in late-stage arthritis, though it results in a complete loss of wrist mobility. This loss can lead to compensatory movement patterns in other upper limb joints, which may increase the risk of secondary musculoskeletal disorders. This study investigated scapular kinematics in wrist fusion patients compared to healthy controls. Eighteen participants (nine wrist fusion patients, nine age- and sex-matched controls) were recruited. Scapular motion was tracked using motion capture during seven functional tasks. Bilateral scapular kinematics (upward rotation, internal rotation and anterior tilt) were analyzed at 30° increments of humeral elevation. Kinematic outcomes were assessed using linear mixed models with group and side (fusion or non-fusion) as independent factors. Participants with wrist fusion demonstrated greater scapular internal rotation, upward rotation, and anterior tilt for both arms as compared with the control group. Upward rotation was greater on the fusion side than the non-fusion side in the surgery group. These findings suggest that scapular kinematics are altered to compensate for wrist immobility during daily living and functional tasks. Understanding these compensatory patterns is important to guide post-surgical rehabilitation strategies and help prevent secondary upper limb injuries.","PeriodicalId":52124,"journal":{"name":"International Biomechanics","volume":"13 1","pages":"1-12"},"PeriodicalIF":0.0,"publicationDate":"2026-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13686183/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149225418","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}

引用次数: 0

Lower limb neuromotor control during perturbed and unperturbed gait conditions in male runners with Achilles tendinopathy: an exploratory analysis. 患有跟腱病的男性跑步者在受干扰和未受干扰的步态条件下的下肢神经运动控制：一项探索性分析。

International Biomechanics Pub Date : 2026-12-01 Epub Date: 2026-01-05 DOI: 10.1080/23335432.2025.2611710

Andrew Quarmby, Philip Kurtz, Mina Khajooei, Myoung-Hwee Kim, Michael Cassel, Frank Mayer, Tilman Engel

{"title":"Lower limb neuromotor control during perturbed and unperturbed gait conditions in male runners with Achilles tendinopathy: an exploratory analysis.","authors":"Andrew Quarmby, Philip Kurtz, Mina Khajooei, Myoung-Hwee Kim, Michael Cassel, Frank Mayer, Tilman Engel","doi":"10.1080/23335432.2025.2611710","DOIUrl":"10.1080/23335432.2025.2611710","url":null,"abstract":"Achilles tendinopathy (AT) is common among runners and typically presents with Achilles tendon pain. Neuromotor alterations have been reported in AT during demanding tasks such as running; however, alterations during functional tasks such as walking remain poorly understood. Such information may be relevant and inform rehabilitation targets. Therefore, this exploratory study investigated lower limb neuromotor control during walking and running in people with AT compared with healthy controls (CO). Twenty-four male runners participated (AT = 12, CO = 12) and completed walking (WALK), perturbed walking (PERTWALK), running (RUN), and perturbed running (PERTRUN) on a custom split-belt treadmill. Lower limb muscle activity was recorded using electromyography to assess activity onset, offset, and duration during unperturbed tasks, and reflex latency and amplitude during perturbed tasks. A MANOVA (α = 0.05) examined group effects (AT/CO). During WALK, AT showed delayed onset of tibialis anterior, peroneus longus, and vastus medialis (p < 0.05). During RUN, gastrocnemius medialis duration was longer, while gluteus maximus onset was delayed and shorter in AT (p < 0.05). During PERTWALK, tibialis anterior reflex latency was delayed in AT (p < 0.05), whereas reflex amplitudes and all PERTRUN outcomes were not significant. These findings indicate potential neuromotor differences in AT.","PeriodicalId":52124,"journal":{"name":"International Biomechanics","volume":"13 1","pages":"1-17"},"PeriodicalIF":0.0,"publicationDate":"2026-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12777876/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145907314","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}

引用次数: 0

The case study of prosthetic foot alignment on amputee gait kinematics using IMU-based motion capture system. 基于imu的运动捕捉系统的假肢足对齐对截肢者步态运动学的实例研究。

International Biomechanics Pub Date : 2026-12-01 Epub Date: 2026-05-01 DOI: 10.1080/23335432.2026.2663427

Darya Korostovskaya, Tatyana Shashkina, Sofiya Eksharova, Vladimir Serdyukov

{"title":"The case study of prosthetic foot alignment on amputee gait kinematics using IMU-based motion capture system.","authors":"Darya Korostovskaya, Tatyana Shashkina, Sofiya Eksharova, Vladimir Serdyukov","doi":"10.1080/23335432.2026.2663427","DOIUrl":"10.1080/23335432.2026.2663427","url":null,"abstract":"The determination of the optimal prosthesis alignment for maximum patient comfort is an important rehabilitation goal, especially for lower limb amputees, where the assessment of biomechanics is complex. Despite this, quantitative gait analysis is rarely used in clinical practice, and the influence of prosthesis alignment on gait kinematics remains unclear. This study explores the use of an IMU-based motion capture system to assess the impact of prosthesis alignment on gait biomechanics. A transtibial amputee's gait was analyzed with various prosthetic foot alignments in the sagittal and frontal planes. Key gait parameters were measured, including joint flexion/extension angles, body tilt and center of mass (COM) oscillation. Deviations in joint angles from reference values reached 30°, and gait speed varied by up to 0.5 m/s depending on alignment. Notably, prosthesis alignment had minimal impact on the healthy leg's kinematics but significantly influenced gait asymmetry, also reflected in COM movement. The study confirms that prosthesis alignment can markedly affect amputee gait biomechanics. The proposed method enables clinicians to evaluate alignment suitability and make data-driven adjustments.","PeriodicalId":52124,"journal":{"name":"International Biomechanics","volume":"13 1","pages":"1-11"},"PeriodicalIF":0.0,"publicationDate":"2026-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13137747/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147823574","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}

引用次数: 0

Is the head-mounted laser an appropriate tool to measure cervical movement across three planes? 头戴式激光是测量颈椎在三个平面上运动的合适工具吗？

International Biomechanics Pub Date : 2026-12-01 Epub Date: 2026-01-29 DOI: 10.1080/23335432.2026.2624302

D J English, N Weerakkody, A Zacharias, R A Green, M de Noronha, C Hocking, A Kumar, X Li, R Rico Bini

{"title":"Is the head-mounted laser an appropriate tool to measure cervical movement across three planes?","authors":"D J English, N Weerakkody, A Zacharias, R A Green, M de Noronha, C Hocking, A Kumar, X Li, R Rico Bini","doi":"10.1080/23335432.2026.2624302","DOIUrl":"10.1080/23335432.2026.2624302","url":null,"abstract":"The head-mounted laser is commonly used in clinical proprioceptive tests, but its ability to measure movement across three planes of motion has not been investigated. Therefore, this study evaluated the head-mounted laser against a validated gold standard multi-sensor inertial measurement unit (IMU) (XsensTM) in measuring cervicocephalic movement across three planes. Fourteen healthy adults (seven males and seven females) performed six repetitions each of active cervical flexion, extension, lateral flexion and rotation, whilst instructed to maintain the laser beam within a bullseye corresponding to 4.5° of movement. Primary plane means XsensTM range of motion (ROM) was used to evaluate if movement remained less than 4.5°. During flexion, extension and rotation movements, mean ROM in the primary plane using XsensTM remained within the 4.5° threshold (2.97°-3.57°), indicating that the head-mounted laser corresponded with the IMU (p ≤ 0.01). However, XsensTM mean lateral flexion movement reached 11.34° and 12.10° for left and right lateral flexion, indicating poor correspondence (p = 0.95 and 0.97). The head-mounted laser is appropriate for clinical movement assessment in the sagittal and transverse planes but not recommended for the coronal plane. Other devices should be considered for complete clinical assessment of cervical position sense.","PeriodicalId":52124,"journal":{"name":"International Biomechanics","volume":"13 1","pages":"1-11"},"PeriodicalIF":0.0,"publicationDate":"2026-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12862843/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146087977","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}

引用次数: 0

Mechanical instability of the lumbar spine following intervertebral disc injury: a comparison of two injury methods. 椎间盘损伤后腰椎的机械不稳定：两种损伤方法的比较。

International Biomechanics Pub Date : 2025-12-01 Epub Date: 2025-10-30 DOI: 10.1080/23335432.2025.2581469

Fangxin Xiao, Wendy Noort, Juliette Lévénez, Jia Han, Jaap H van Dieën, Huub Maas

{"title":"Mechanical instability of the lumbar spine following intervertebral disc injury: a comparison of two injury methods.","authors":"Fangxin Xiao, Wendy Noort, Juliette Lévénez, Jia Han, Jaap H van Dieën, Huub Maas","doi":"10.1080/23335432.2025.2581469","DOIUrl":"10.1080/23335432.2025.2581469","url":null,"abstract":"Intervertebral disc (IVD) degeneration is a potential contributor to low-back pain. While experimental IVD injury models have demonstrated IVD structural changes, the early mechanical consequences remain unclear. This study aims to assess and compare the effects of two IVD injury models on lumbar spine instability and assess back musculature adaptations to IVD injury. Thirty-one adult male Wistar rats were assigned to three groups: IVD knife stab lesion (knife), IVD needle puncture (needle), and sham surgery control (control). In the knife and needle groups, L4/L5 IVDs were injured at 14 weeks of age. One to two weeks post-intervention, lumbar multifidus (MF) and medial longissimus (ML) muscles were excised, L4-L5 spinal segments were harvested for mechanical testing, and IVDs were collected for histology. The needle group exhibited lower peak stiffness, peak moment and hysteresis than controls in flexion, with no difference in lateral bending. IVD height and area did not differ between groups, but the needle group had a smaller nucleus relative to the annulus area compared to controls. Morphological changes were observed in both injury groups. The needle group showed a higher normalized ML mass, while the normalized MF mass was unchanged. In conclusion, lumbar spine instability was successfully established via IVD needle injury in the rat.","PeriodicalId":52124,"journal":{"name":"International Biomechanics","volume":"12 1","pages":"67-80"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12576908/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145402855","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}

引用次数: 0

Comparing shoulder muscle activity in symptomatic and asymptomatic groups: the influence of normalization technique. 比较有症状组和无症状组肩肌活动：规范化技术的影响。

International Biomechanics Pub Date : 2025-12-01 Epub Date: 2025-07-22 DOI: 10.1080/23335432.2025.2537403

Angelica E Lang, Soo Y Kim

{"title":"Comparing shoulder muscle activity in symptomatic and asymptomatic groups: the influence of normalization technique.","authors":"Angelica E Lang, Soo Y Kim","doi":"10.1080/23335432.2025.2537403","DOIUrl":"10.1080/23335432.2025.2537403","url":null,"abstract":"Maximum voluntary contractions (MVCs) are the standard normalization method for muscle activity, but can be hindered by pain and injury. Submaximal normalization may be a viable option. The study objective was to compare muscle activation between symptomatic and asymptomatic groups with MVC and submaximal normalization to determine if similar relative between-groups differences could be detected. Eighteen participants, divided into symptomatic and asymptomatic groups, performed isometric MVCs and six dynamic functional tasks. EMG data were normalized using MVC and submaximal values from a weighted overhead lift. MVCs achieved higher activation levels for most muscles, but submaximal normalization provided comparable values for serratus anterior. Significant between-group differences were observed during the Comb Hair, with higher activation in the symptomatic group for the upper trapezius, middle trapezius, and supraspinatus across both normalizations. The serratus anterior during the Overhead Reach and lower trapezius in the Tie Apron were also different between groups with both normalizations. There were some significant findings that emerged from only one normalization method. Submaximal normalization may be a viable alternative to MVC normalization for select muscles and upper limb pathological populations. Submaximal normalization allowed for meaningful comparisons of muscle activation patterns during functional tasks without the need for maximum force exertion.","PeriodicalId":52124,"journal":{"name":"International Biomechanics","volume":"12 1","pages":"18-27"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12284987/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144692388","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}

引用次数: 0

Inter-limb asymmetries in professional male basketball and volleyball players: bilateral vs. unilateral jump comparison. 职业男子篮球和排球运动员肢体间不对称：双侧与单侧跳的比较。

International Biomechanics Pub Date : 2025-12-01 Epub Date: 2025-09-03 DOI: 10.1080/23335432.2025.2554589

Dimitrije Cabarkapa, Damjana V Cabarkapa, Andrew C Fry

{"title":"Inter-limb asymmetries in professional male basketball and volleyball players: bilateral vs. unilateral jump comparison.","authors":"Dimitrije Cabarkapa, Damjana V Cabarkapa, Andrew C Fry","doi":"10.1080/23335432.2025.2554589","DOIUrl":"10.1080/23335432.2025.2554589","url":null,"abstract":"The purpose of the present study was to examine differences in inter-limb asymmetries between countermovement vertical jump (CMJ) and single-leg jump (SLJ) performed on an innovative portable force plate system. Seventy professional athletes competing in top-tier international leagues (e.g. NBA, Super League) participated in this investigation. Following the completion of a standardized warm-up, athletes stepped on a uni-axial dual-force plate system and performed three CMJs and six SLJs without an arm swing in randomized order. Peak takeoff and landing forces were recorded for each limb, from which asymmetry percentages were derived. Wilcoxon signed-rank test was used to make statistical comparisons (p < 0.05). Significant differences were found in all asymmetry-related metrics, overall (CMJ vs. SLJ; takeoff: 7.2 vs. 1.0%; landing: 3.3 vs. 6.8%) and within each sport. Peak takeoff force asymmetry was considerably greater in CMJ than in SLJ, while peak landing force asymmetry displayed a reverse trend, with notably greater inter-limb asymmetries being detected within SLJ than CMJ. While both tests can offer useful information to sports practitioners, these results suggest that CMJ and SLJ should not be used interchangeably but rather in conjunction with one another to obtain a better insight into athletes' performance capabilities and inter-limb asymmetry magnitudes.","PeriodicalId":52124,"journal":{"name":"International Biomechanics","volume":"12 1","pages":"28-34"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12409869/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144994294","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}

引用次数: 0

Experimental evaluation of hard hat performance during impacts to a forward-flexed head. 前屈头碰撞时安全帽性能的实验评估。

International Biomechanics Pub Date : 2025-12-01 Epub Date: 2025-09-17 DOI: 10.1080/23335432.2025.2560410

Arthur Santos, James Sorce, Mohammadhadi Masoudi, Alexandra Schonning, Grant Bevill

{"title":"Experimental evaluation of hard hat performance during impacts to a forward-flexed head.","authors":"Arthur Santos, James Sorce, Mohammadhadi Masoudi, Alexandra Schonning, Grant Bevill","doi":"10.1080/23335432.2025.2560410","DOIUrl":"10.1080/23335432.2025.2560410","url":null,"abstract":"Traumatic brain injuries frequently occur in the construction industry when workers are struck with their heads in a forward-flexed position. Hard hats, the primary form of protection against such events, may not be optimized for these forward-flexed impacts since certification testing is performed with a head form in an upright configuration. In response, this study assesses the impact mitigation of six commercially available hard hats when subjected to impacts in different head orientations - upright and with 30° of forward flexion. Impactors with a mass of 3.6 kg were dropped vertically onto a Hybrid III 50th percentile head/neck form. Kinematic outcomes related to TBI (e.g. accelerations) were compared across impact conditions. Results indicated that impacts to the forward-flexed head resulted in the largest angular accelerations, and hard hats were the least effective at mitigating angular accelerations in this head position. Furthermore, correlation analysis indicated that hard hats that performed well in upright testing often performed poorly in forward-flexed conditions (or vice versa). Taken together, these results suggest consumers/employers are not equipped with the necessary information to select the safest products for all impact conditions based on safety certification results using upright testing alone.","PeriodicalId":52124,"journal":{"name":"International Biomechanics","volume":"12 1","pages":"14-23"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12444922/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145082345","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}

引用次数: 0

Biomechanical comparison of two tension band wiring techniques for transverse patella fracture fixation: an in vitro study of 3-D printing models. 两种张力带钢丝技术用于髌骨横骨折固定的生物力学比较：3d打印模型的体外研究。

International Biomechanics Pub Date : 2025-12-01 Epub Date: 2025-09-21 DOI: 10.1080/23335432.2025.2562270

David Sáez Martínez, Juan Carlos Del Real Romero, Emilio Calvo Crespo, Felipe López-Oliva Muñoz

{"title":"Biomechanical comparison of two tension band wiring techniques for transverse patella fracture fixation: an in vitro study of 3-D printing models.","authors":"David Sáez Martínez, Juan Carlos Del Real Romero, Emilio Calvo Crespo, Felipe López-Oliva Muñoz","doi":"10.1080/23335432.2025.2562270","DOIUrl":"10.1080/23335432.2025.2562270","url":null,"abstract":"Patella fractures are relatively rare, though effective treatment of these fractures is essential. Screws and cerclage cable have been proposed to treat displaced patellar fractures to overcome the disadvantages of the modified tension band technique. The aim of the present study was to compare the in vitro biomechanical behaviour of a surgical construct consisting of screws and cable cerclage figure-of-eight tension band against the classic tension band technique using a specifically designed 3-D printed model of patella fracture. The patellar-fracture fixation systems tested in the current study consisted of screws and cerclage cable tension band compared to a conventional modified AO (Association of Osteosynthesis) tension band. Each system was tested in ten 3D- printed patella - fracture models. Two trials were designed to reproduce the forces the patella withstands throughout the range of knee motion. Differences between forces and displacement were explored with the Student t test. In the extension test, the between-group difference of the force required for failure was 1455,9 N greater in the screw cerclage cable setup in the flexion test, the screw cerclage group showed lower fracture displacement (1,42 mm less displacement) at higher forces (more than 244,9 N) compared to the Modified AO tension band. Differences were found to be statistically significant. Screws and cerclage cable are an alternative to conventional surgical procedures for transverse patellar fractures. Further research must establish if this setup and new non metallic materials should become the surgical treatment gold standard.","PeriodicalId":52124,"journal":{"name":"International Biomechanics","volume":"12 1","pages":"24-31"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12456043/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145114814","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}

引用次数: 0