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Published on: June 3, 2020
Relationship Between Juncturae Tendinum and Sagittal Bands
Shrikant J Chinchalkar1, Chelsea A Barker2, Bobbi Owsley3
1Department of Hand Therapy, Roth McFarlane Hand & Upper Limb Centre, St. Joseph's Hospital, 268 Grosvenor Street, London, Ontario N6A 4A6 Canada.
Accurate diagnosis of extensor tendon and sagittal band injuries is crucial for effective hand function. Early recognition and treatment, including splinting, improve joint motion and hand use.
Area of Science:
- Orthopedics
- Hand Surgery
- Biomechanics
Background:
- The juncturae tendinum and sagittal bands are key structures for hand dorsum force transmission.
- These structures stabilize metacarpophalangeal (MCP) joints and enable digital extension.
- Injury to these structures can cause kinematic chain disruption and abnormal hand postures.
Purpose of the Study:
- To emphasize the importance of recognizing extensor tendon and sagittal band injuries.
- To highlight the role of proper clinical evaluation in diagnosing these injuries.
- To outline treatment strategies for improved hand function.
Main Methods:
- Review of anatomical structures and their biomechanical roles.
- Discussion of clinical presentation and diagnostic challenges.
- Overview of treatment modalities for extensor tendon and sagittal band injuries.
Main Results:
- Extensor tendon and sagittal band injuries disrupt normal hand mechanics.
- Accurate diagnosis requires thorough clinical evaluation and specific tests.
- Timely intervention is essential for restoring hand function.
Conclusions:
- Early and accurate diagnosis of extensor tendon and sagittal band injuries is critical.
- Treatment involving relative motion splinting and conservative measures can enhance joint mobility and function.
- Understanding the biomechanics of these structures aids in patient management.
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