The Complex Retinacular System of the Hand and Its Influence on Digital Motion

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Webinar Title: The Complex Retinacular System of the Hand and Its Influence on Digital Motion

Presenter:
Shrikant J. Chinchalkar, M.Th.O, B Sc.OT, OTR, CHT

Webinar Description:
The retinacular system of the hand is a sophisticated network comprising the extensor and flexor retinacula, juncturae tendinum, sagittal bands, spiral oblique retinacular ligament, transverse retinacular ligament, triangular ligaments, and palmar pulleys. These structures are intricately interconnected, playing a critical role in the biomechanics of digital motion. The significance of these components in regulating the precise forces required during flexion, extension, and opposition of the digits has been extensively documented by renowned authors such as Tubiana, Bunnell, Brand, and Kapandji. By controlling the excursion of the flexors, extensors, and intrinsic muscles, the retinacular system ensures the coordinated and effective function of the digits. Injuries, attenuation, or adaptive shortening of any of these retinacular structures can disrupt the delicate kinematic balance, leading to various hand deformities, including swan neck and boutonniere/pseudo-boutonniere deformities. Accurate recognition of these pathologies, coupled with the application of specialized clinical tests, is essential for directing precise management strategies. Once diagnosed, treatment may involve relative motion splinting and standardized therapeutic measures aimed at enhancing joint motion, tendon excursion, and overall hand function. This presentation will feature illustrations, animations, and clinical and cadaveric dissection videos to facilitate a comprehensive understanding of both normal and pathological digital mechanics. Integrating these media will serve as a foundation for evidence-based clinical management.

Learning Objectives:
Upon completion of this course, participants will:

  1. Gain a thorough understanding of the anatomy and function of the retinacular system
  2. Comprehend how these structures contribute to the smooth and synergistic movement of the phalanges and the excursion of tendons during digital flexion, extension, and opposition
  3. Recognize the various deformities that may arise from dysfunctions within the retinacular system
  4. Acquire knowledge of the specific tests used to identify structural deficiencies
  5. Develop the ability to plan precise, evidence-based therapeutic interventions to maximize functional outcomes

Originally Presented: November 2024

CE Credit:  1.0 continuing education hours, or 0.10 CEUs

Pricing:
Members $35
Student Members $20
Non-Members $55
Student Non-Members $30

* The ASHT Webinar Committee conducts an audit of webinars to ensure that the content is keeping up with the latest science and research. Please note that this webinar may be updated in the future. At that time, the purchased webinar will no longer be available for view.