You are here

Metacarpophalageal Joint Dislocation S63.116A 834.01

 

ICD-9 Classification / Treatment
Etiology / Natural History Associated Injuries / DDx
Anatomy Complications
Clinical Evaluation Follow-up Care
Xray / Diagnositc Tests Review References

synonyms:

 

Metacarpophalageal Joint Dislocation ICD-10

 

A- initial encounter

D- subsequent encounter

S- sequela

Metacarpophalageal Joint Dislocation ICD-9

  • 834.01  closed dislocation Metacarpophalageal Joint
  • 834.11  open dislocation Metacarpophalageal Joint

Metacarpophalageal Joint Dislocation Etiology / Epidemiology / Natural History

  • Generally caused by a fall on the outstretched hand causing forcible hyperextension of the MCP joint. Volar dislocations may result from hyperflexion injury. 
  • Dorsal dislocations >> volar dislocations5
  • Index finger is most frequently involved, followed by the thumb.
  • The volar plate is avulsed from its metacarpal neck attachment during dorsal dislocation and may become interposed within the joint preventing reduction. Other structures may also prevent reduction: lumbrical muscle,  flexor tendons,  natatory ligament, superficial transverse metacarpal ligament.
  • Volar dislocations may be irreducible due to: dorsal capsule, distal insertion of the volar plate, collateral ligament,  tendinous juncture connecting the fourth and fifth extensor digitorum communis tendons, dorsal
    interosseous muscle, sesamoid bone.

Metacarpophalageal Joint Dislocation Anatomy

  • Proper collateral ligaments are the primary stabilizers of the MCP joint: taut in flexion, lax in extension.
  • Accessory collateral ligaments originate volar to the proper collateral ligaments and insert onto
    the volar plate;  taut in extension and lax in flexion.
  • Volar plate: thick fibrocartilaginous portion distally and a looser, membranous portion proximally.

Metacarpophalageal Joint Dislocation Clinical Evaluation

  •  

Metacarpophalageal Joint Dislocation Xray / Diagnositc Tests

  •  

Metacarpophalageal Joint Dislocation Classification / Treatment

  •  

Metacarpophalageal Joint Dislocation Associated Injuries / Differential Diagnosis

  •  

Metacarpophalageal Joint Dislocation Complications

Metacarpophalageal Joint Dislocation Follow-up Care

  •  

Metacarpophalageal Joint Dislocation Review References

  • Dinh P,  JAAOS; 2009 ; 17:318


 

 

 

Disclaimer

The information on this website is intended for orthopaedic surgeons.  It is not intended for the general public. The information on this website may not be complete or accurate.  The eORIF website is not an authoritative reference for orthopaedic surgery or medicine and does not represent the "standard of care".  While the information on this site is about health care issues and sports medicine, it is not medical advice. People seeking specific medical advice or assistance should contact a board certified physician.  See Site Terms / Full Disclaimer