Proximal interphalangeal dislocation (finger): Difference between revisions
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==Background== | ==Background== | ||
*Common; due to axial load and hyperextension | |||
*Dorsal dislocation occurs when volar plate ruptures | |||
*Lateral dislocations occur when one of collateral ligaments ruptures w/ at least partial avulsion of volar plate from middle phalanx | |||
==Clinical Features== | ==Clinical Features== | ||
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==Management== | ==Management== | ||
===Reduction=== | |||
*Same as for DIP joint | |||
===[[Splinting]]=== | |||
*Stable Reduction: 3wk of immobilization in 20-30 deg of flexion | |||
*Unstable reduction: Surgery | |||
**Displacement occurs during active range of motion | |||
**Displacement occurs during passive stressing of joint | |||
**>20 deg of deformity and instability with lateral testing | |||
==Disposition== | ==Disposition== | ||
Revision as of 07:23, 1 June 2015
Background
- Common; due to axial load and hyperextension
- Dorsal dislocation occurs when volar plate ruptures
- Lateral dislocations occur when one of collateral ligaments ruptures w/ at least partial avulsion of volar plate from middle phalanx
Clinical Features
Differential Diagnosis
Hand and finger dislocations
- Finger dislocations
- Thumb dislocations
- Hand dislocations
Diagnosis
Management
Reduction
- Same as for DIP joint
Splinting
- Stable Reduction: 3wk of immobilization in 20-30 deg of flexion
- Unstable reduction: Surgery
- Displacement occurs during active range of motion
- Displacement occurs during passive stressing of joint
- >20 deg of deformity and instability with lateral testing