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J Hand Microsurg 2015; 07(01): 96-101
DOI: 10.1007/s12593-015-0172-8
Review Article
Thieme Medical and Scientific Publishers Private Ltd.

Relationship Between Juncturae Tendinum and Sagittal Bands

Shrikant J. Chinchalkar
1   Department of Hand Therapy, Roth McFarlane Hand & Upper Limb Centre, St. Joseph’s Hospital, 268 Grosvenor Street, London, Ontario, N6A 4A6, Canada   Email: schinchalkar@hotmail.com
,
Chelsea A. Barker
2   Premier Orthopaedic & Sports Medicine Associates, 1161 McDermott Drive, West Chester, PA, 19380, USA   Email: barker_chelsea@hotmail.com
,
Bobbi Owsley
3   Hand Surgery Associates Therapy, Denver, CO, USA
› Author Affiliations
Subject Editor:
Further Information

Publication History

13 August 2014

02 January 2015

Publication Date:
13 September 2016 (online)

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Abstract

The juncturae tendinum and sagittal bands transmit precise forces through the dorsum of the hand. Both structures are integral in the mechanics of normal digital extension and in stabilization of the metacarpophalangeal (MCP) joints. Extensor tendon injury, or rupture/attenuation of sagittal bands and/or juncturae tendinum, may disrupt the kinematic chain and lead to a number of abnormal hand postures and motions. Early treatment of extensor tendon and/or sagittal band injury is dependent upon proper recognition of primary pathology. Proper evaluation and the use of special clinical tests should be implemented to rule out other pathologies. Once diagnosed, treatment may consist of relative motion splinting and standard pain/edema control measures to increase joint motion, tendon excursion, and functional use of the hand.

Keywords

Juncturae tendinum - Sagittal band - Extensor biomechanics - Cadaver dissection - Extensor quadriga - Swan neck deformity - Relative motion orthosis
 

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