Background: The metacarpophalangeal (MCP) joint's collateral ligaments have been extensively debated, with no clear consensus on their mechanics. Understanding their function is crucial for comprehending joint movement and stability.
Methods: A thorough search was conducted across databases, including PubMed, Scopus, Cochrane library and grey literature. A total of 59 articles were identified, and after rigorous evaluation, six articles were included in the review.
Results: The analysis underscores two principal findings. Firstly, the principal and accessory collateral ligaments exhibit consistent tension influenced by the MCP joint's position. This tension varies across different sections of the ligaments. Secondly, the ligaments' interaction with the joint structure plays a pivotal role in defining the range of motion of the joint.
Conclusion: Preliminary findings from this review indicate that MCP joint collateral ligament tension varies with joint position. Increased tension in the principal collateral ligament during flexion and isometric behavior of its volar portion in extension are observed. The accessory ligament may tighten during extension. The shape of the metacarpal head appears to influence this tension. These insights, while informative, call for further detailed research to deepen our understanding of MCP joint mechanics.
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http://dx.doi.org/10.1016/j.morpho.2024.100770 | DOI Listing |
SICOT J
January 2025
Department of Orthopaedic Surgery, Joint Replacement Unit, Kuala Lumpur Hospital, Ministry of Health Malaysia, Jalan Pahang, 50586 Kuala Lumpur, Malaysia.
Introduction: Extraarticular deformity (EAD) with knee arthritis is a complex condition involving tri-planar bone deformity with pathological malalignment and chronic soft tissue contracture or laxity in the knee joint. Intraarticular correction by TKA, which was previously performed with conventional manual jig by mechanical alignment technique, had its limits and difficulties especially extensive soft tissue release and risk of jeopardizing the collateral ligaments. Robotic technology allows for reproducible and precise execution of surgical plan and allows adjustment to various new personalised alignment philosophy including functional alignment (FA).
View Article and Find Full Text PDFJ Orthop Surg Res
January 2025
Sports Medicine Department, Xuzhou Central Hospital, Xuzhou Clinical College of Xuzhou Medical University, No. 199, the Jiefang South Road, Xuzhou, Jiangsu, 221009, China.
Background: To compare the clinical outcomes of inferior extensor retinaculum (IER) augmentation following repair of the anterior talofibular ligament (ATFL) with isolated ATFL repair in patients with an arthroscopically confirmed grade 3 lesion of the ATFL.
Methods: We conducted a retrospective study of consecutive chronic lateral ankle instability (CLAI) patients who underwent arthroscopic ATFL repair between March 2018 and August 2022. The average age of the patients was 31.
Zhongguo Zhen Jiu
January 2025
Department of Rehabilitation Medicine, General Hospital of Ningxia Medical University, Yinchuan 750004, China; Key Laboratory of Ningxia Ethomedicine Modernization, Ministry of Education, Yinchuan 750004.
Objective: To observe the clinical effect of internal heat acupuncture therapy for knee osteoarthritis of early to middle stages, and explore its influence on cartilage thickness.
Methods: A total of 44 patients with knee osteoarthritis of early to middle stages were treated with internal heat acupuncture therapy at points (most of them are located at the subpatellar fat pad, both sides of the patellar ligament, the tendon of the quadriceps and the attachment of the medial and lateral collateral ligaments), once a week, a total of 4 weeks of treatment. Before and after treatment, after 3 months of treatment completion (in the follow-up), the visual analogue scale (VAS) score, Western Ontario and McMaster Universities osteoarthritis index (WOMAC) score, frequency of 30-second chair stand test (30sCST), cartilage thickness of femoral intercondylar and knee joint ultrasound score were compared, and the clinical effect was evaluated.
Medicina (Kaunas)
December 2024
Department of Orthopedic Surgery, Chungnam National University Hospital, School of Medicine, Chungnam National University, Munhwa-ro 282, Jung-gu, Daejeon 35015, Republic of Korea.
: This study investigated associated meniscus and ligament injuries in tibial plateau fractures using magnetic resonance imaging (MRI) and assessed soft tissue injuries in relation to the Schatzker classification and Tscherne classification. : The data of 185 patients who sustained tibial plateau fractures from January 2010 to April 2021 were retrospectively reviewed. Fractures were classified according to the Schatzker classification system.
View Article and Find Full Text PDFBiomedicines
November 2024
Clinic for Trauma and Reconstructive Surgery, University Hospital Heidelberg, 69118 Heidelberg, Germany.
: The elbow joint is stabilized by complex interactions between bony structures and soft tissues, notably the lateral and medial collateral ligaments. Posterolateral rotatory instability (PLRI), a form of elbow instability, is challenging to diagnose due to overlapping symptoms with other conditions. The radiocapitellar line (RCL) is a radiographic tool for assessing humeroradial alignment and elbow stability, but its diagnostic accuracy remains debated.
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