Journal article
Radial Instability of the Metacarpophalangeal Joint of the Thumb: A biomechanical investigation
Journal of hand surgery, British volume, Vol.20(1), pp.102-104
02/1995
DOI: 10.1016/S0266-7681(05)80026-9
PMID: 7759918
Abstract
Human cadaver thumbs were tested to evaluate stability of the radial side of the MP joint. The contributions of the dorsal capsule, radial collateral ligament, accessory collateral ligament, and volar plate were examined with the joint in 0° and 30° of flexion. At 0° flexion, the average joint angulation increased 4° following isolated radial collateral ligament transection and 6° following isolated accessory collateral ligament transection. Release of both the accessory and radial collateral ligaments produced marked instability with joint angulation of at least 46° The accessory collateral ligament helped to stabilize the extended MP joint. There were no significant contributions to stability from the dorsal capsule and volar plate when the collateral ligaments were intact. In the laboratory setting, radial-side instability of the MP joint of the thumb requires transection of both the proper and accessory radial collateral ligaments.
Details
- Title: Subtitle
- Radial Instability of the Metacarpophalangeal Joint of the Thumb: A biomechanical investigation
- Creators
- T. G LOEBIG - From the Biomechanics Research Laboratory, Allegheny-Singer Research Institute, and the Department of Orthopaedics and Rehabilitation, Medical College of Pennsylvania, Pittsburgh, Pennsylvania, USAD. D ANDERSON - From the Biomechanics Research Laboratory, Allegheny-Singer Research Institute, and the Department of Orthopaedics and Rehabilitation, Medical College of Pennsylvania, Pittsburgh, Pennsylvania, USAM. E BARATZ - From the Biomechanics Research Laboratory, Allegheny-Singer Research Institute, and the Department of Orthopaedics and Rehabilitation, Medical College of Pennsylvania, Pittsburgh, Pennsylvania, USAJ. E IMBRIGLIA - From the Biomechanics Research Laboratory, Allegheny-Singer Research Institute, and the Department of Orthopaedics and Rehabilitation, Medical College of Pennsylvania, Pittsburgh, Pennsylvania, USA
- Resource Type
- Journal article
- Publication Details
- Journal of hand surgery, British volume, Vol.20(1), pp.102-104
- DOI
- 10.1016/S0266-7681(05)80026-9
- PMID
- 7759918
- ISSN
- 0266-7681
- eISSN
- 1532-2211
- Language
- English
- Date published
- 02/1995
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Orthopedics and Rehabilitation; Industrial and Systems Engineering
- Record Identifier
- 9984040548802771
Metrics
10 Record Views