Metacarpophalangeal dislocation (thumb): Difference between revisions
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==Differential Diagnosis== | ==Differential Diagnosis== | ||
{{Hand and finger dislocation types}} | {{Hand and finger dislocation types}} | ||
{{Hand and finger injury DDX}} | |||
==Evaluation== | ==Evaluation== | ||
[[File:MCCdislocation.png|thumb|MCP dislocation of thumb]] | |||
*X-ray thumb (PA and lateral) | |||
==Management== | ==Management== | ||
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==Disposition== | ==Disposition== | ||
*Outpatient | |||
==See Also== | ==See Also== | ||
Latest revision as of 17:59, 28 April 2017
Background
- Also known as the MCP joint
- Like other MCP joint dislocations, may be simple or complex
Clinical Features
- Thumb pain/deformity
Differential Diagnosis
Hand and finger dislocations
- Finger dislocations
- Thumb dislocations
- Hand dislocations
Hand and finger injuries
- Distal finger
- Other finger/thumb
- Boutonniere deformity
- Mallet finger
- Jammed finger
- Jersey finger
- Trigger finger
- Ring avulsion injury
- De Quervain tenosynovitis
- Infiltrative tenosynovitis
- Metacarpophalangeal ulnar ligament rupture (Gamekeeper's thumb)
- Hand
- Wrist
- Drummer's wrist
- Ganglion cyst
- Lunotriquetral ligament instability
- Scaphoid fracture
- Extensor digitorum tenosynovitis
- Compressive neuropathy ("bracelet syndrome")
- Intersection syndrome
- Snapping Extensor Carpi Ulnaris
- Vaughn Jackson syndrome
- General
Evaluation
- X-ray thumb (PA and lateral)
Management
- Stable reduction: Immobilize in thumb spica wtih MCP joint in 20 deg flexion for 4wk
- Unstable reduction: ORIF
Reduction
- Radial and median nerve blocks
- Pressure directed distally on base of prox phalanx with metacarpal flexed and abducted
Disposition
- Outpatient