2023年1月23日 · Metacarpophalangeal joint (MCPJ) dislocations are uncommon dislocations of the hand. Metacarpophalangeal joint dislocations account for ~3-5% of all dislocations 1,2. The thumb is the most commonly affect digit, followed by the little finger 2.

2024年9月8日 · MCP Dislocations are a dislocation of the metacarpophalangeal joint, usually dorsal, caused by a fall and hyperextension of the MCP joint. Diagnosis can be made clinically and is confirmed by orthogonal radiographs. Treatment is closed reduction unless soft tissue interposition blocks reduction, in which case open reduction is indicated.

X-ray can be used to check for underlying bone injury and to reassess following reduction of the dislocation. Some finger fractures are easy to identify, but others are more difficult to spot because of overlying bones or soft tissues. The most common metacarpal fracture is …

2025年2月24日 · Metacarpophalangeal (MCP) joints are condyloid synovial joints between the metacarpal bones and proximal phalanges of the hands. This article is focused on the metacarpophalangeal joints of the fingers. Each joint occurs between the round head of the metacarpal and the shallow base of the proximal phalanx 1,2.

2024年12月1日 · This review provides a detailed analysis of the anatomy, mechanisms, and management of ligamentous and capsular injuries in metacarpophalangeal joints (MCPJs). The MCPJ is a condyloid joint with unique anatomical features, including a sagittal cam effect that enhances stability in flexion.

2022年10月26日 · Prereduction and postreduction x-ray films are necessary to demonstrate associated fractures and joint congruency. An incongruent joint can be caused by interposed soft-tissue or gross...

X-ray imaging showed a dorsal MCP dislocation of the index finger with an entrapped sesamoid bone . A CT scan confirmed the dislocation at the second MCPJ and revealed a sesamoid bone within the joint, alongside a non-displaced fracture at the base of the second metacarpal . Fig. 2.

The complex multiple MCPJ dislocation was treated successfully with closed reduction under wrist block. The patient is in regular follow-up with no recurrence and good hand function at the end of one

Dislocations and of the metacarpophalangeal (MCP) joint often show dorsal dislocation. These dislocations are classified by the AO/OTA as 70E1. 2–5 [5], where 2–5 indicates the ray of the injured MCP joint. An MCP dislocation may be associated with soft-tissue injuries and fractures of the metacarpal and/or proximal phalanx.

The diagnosis of arthritis is often confirmed by taking x-rays. Figure 3 is an x-ray of a hand with MP joint arthritis. The x-ray shows narrowing of the space between the bones, which is a sign that cartilage has been lost. Your doctor may also order blood tests or imaging studies to confirm the diagnosis. Treatment