The mechanics of the collateral ligaments in the metacarpophalangeal joints: A scoping review - 31/05/24
, D. Donati c, dHighlights |
• | Rethinking the metacarpophalangeal joint's structure: moving beyond simple glenoid or trochlear definitions. |
• | The trapezoidal configuration of the metacarpal head: implications for elongation patterns in collateral ligaments in the transverse plane. |
• | Bicondylar formation of the metacarpal head in its volar aspect: enhanced articular contact in flexion revealed by three-dimensional reconstruction. |
Summary |
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.
Le texte complet de cet article est disponible en PDF.Keywords : Metacarpophalangeal, Collateral ligament, Biomechanics, Anatomy, Hand therapy
Plan
Vol 108 - N° 361
Article 100770- juin 2024 Retour au numéro
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