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Background: The importance of the deltoid ligament in the congruency and coupling of the tibiotalar joint is well known. The current trend is to repair it in cases of acute injuries in the context of ankle fractures; however, there is limited information on how it should be reconstructed. The objective of this study was to compare different deltoid ligament repair types in an ankle fracture cadaveric model.
Methods: Sixteen cadaveric foot-ankle-distal tibia specimens were used. All samples were prepared as a supination external rotation ankle fracture model. Axial load and cyclic axial rotations were applied on every specimen using a specifically designed frame. This test was performed without deltoid injury, with deltoid injury, and after repair. The reconstruction was performed in 4 different ways (anterior, posterior, middle, and combined). Medial clear space (MCS) was measured for each condition on simulated weightbearing (WB) and gravity stress (GS) radiographs. Reflective markers were used in tibia and talus, registering the kinematics through a motion analysis system to record the tibiotalar uncoupling.
Results: After deltoid damage, in all cases the MCS increased significantly on GS radiographs, but there was no increase in the MCS on WB radiographs. After repair, in all cases, the MCS was normalized. Kinematically, after deltoid damage, the tibiotalar uncoupling increased significantly. All isolated repairs achieved a similar tibiotalar uncoupling value as its baseline condition. The combined repair resulted in a significant decrease in tibiotalar uncoupling.
Conclusion: Our results show that deltoid repair recovers the tibiotalar coupling mechanism in an ankle fracture model. Isolated deltoid repairs recovered baseline MCS and tibiotalar uncoupling values. Combined repairs may lead to overconstraint, which could lead to postoperative stiffness. Clinical studies are needed to prove these results and show clinically improved outcomes.
Clinical Relevance: This study helps in finding the optimum deltoid repair to use in an acute trauma setting.
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http://dx.doi.org/10.1177/10711007231184844 | DOI Listing |
Shoulder Elbow
August 2025
Faculty of Healthy Science, Department of Physiotherapy and Rehabilitation, Izmir Democracy University, Izmir, Turkey.
Introduction: This study was designed to compare the outcomes of Bankart, Latarjet, and Remplissage surgical procedures in patients with recurrent anterior shoulder instability.
Methods: The study included 26 patients who underwent surgery for recurrent anterior shoulder instability. Pain levels, proprioceptive sensation, functional status, range of motion (ROM), grip strength, and muscle activation were assessed.
BMC Sports Sci Med Rehabil
August 2025
Shanghai Yangzhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of Medicine, Tongji University, Room 2210, No. 2209 XingGuang Rd, SongJiang Disc, 201619, Shanghai, China.
Background: Therapeutic climbing (TC) is an emerging physical therapy with demonstrated benefits for musculoskeletal rehabilitation, but its impact on upper-limb muscle activity remains unclear. Existing research predominantly focuses on healthy individuals, leaving muscle recruitment strategies in patients with upper-limb injuries largely unexplored. This study aims to investigate upper-limb muscle activity in patients with unilateral upper-limb injuries and healthy individuals across six TC exercises.
View Article and Find Full Text PDFMaedica (Bucur)
June 2025
Department of Anatomy, All India Institute of Medical Sciences, Rajkot, Gujarat, India.
Background: Neurovascular structures beneath the deltoid, particularly the axillary nerve and posterior circumflex humeral artery, are vulnerable to injury from intramuscular injections or compression in the quadrangular space, especially in overhead athletes. Studies by Kakati et al (2013) and Desai et al (2019) report intramuscular injection-related nerve injury rates of 1.5% to 15% and 82.
View Article and Find Full Text PDFDiagnostics (Basel)
August 2025
Department of Medical Imaging, Royal University Hospital, College of Medicine, University of Saskatchewan, Saskatoon, SK S7N 0W8, Canada.
: There is a growing interest in deltoid ligament injury and repair. The integrity of the deltoid ligament is indirectly assessed through medial clear space widening. The objective of this study was to quantify the degree of medial clear space widening in Weber A, B, and C ankle fractures.
View Article and Find Full Text PDFOrthop Traumatol Surg Res
August 2025
Université Clermont Auvergne, CHU Clermont-Ferrand, CNRS, SIGMA Clermont, ICCF, F-63000 Clermont-Ferrand, France.
Background: Bimalleolar equivalent fractures (BEF) represent a particularly challenging subset of ankle fractures, with ongoing debate among ankle surgeons about the necessity of systematic deltoid ligament repair. The present study aims to address this controversy by investigating the radiological and clinical outcomes of deltoid ligament repair in BEF compared to conservative management.
Hypothesis: Systematic deltoid ligament repair in BEF is not necessary.