S63.212

Clinical Causes: Trauma from a direct blow or crush injury to the finger Sudden twisting or hyperextension of the finger Sports injuries, especially in contact or ball sports Falls onto the hand with force applied to the finger Repetitive strain or overuse leading to joint instability Previous injuries weakening the joint structures

Key Symptoms: Pain at the affected joint, often sudden in onset Swelling around the MCP joint Tenderness when touching or moving the finger Limited range of motion or stiffness in the finger A visible or palpable abnormal bump or deformity Possible bruising over the joint area Difficulty gripping or performing fine motor tasks Instability or a sensation of the finger 'giving way'

Diagnosis Path: Diagnosis typically involves a physical examination where a healthcare provider assesses the finger for deformity, swelling, stability, and range of motion. They may perform special tests to confirm joint instability or misalignment. Imaging studies, such as X-rays, are commonly utilized to visualize the joint, confirm the subluxation, and rule out additional injuries like fractures or dislocations. Proper imaging ensures accurate diagnosis and guides appropriate treatment strategies.

Treatment Protocols: Management of a subluxated MCP joint usually consists of the following steps: - **Reduction:** A trained healthcare professional may manually realign the joint if it remains partially dislocated. - **Immobilization:** The finger may be splinted or buddy-taped to adjacent digits to restrict movement and allow healing. - **Pain management:** Use of ice, elevation, and over-the-counter pain relievers can help reduce discomfort. - **Physical therapy:** After initial healing, specific exercises may be recommended to restore strength, flexibility, and stability. - **Surgical intervention:** In cases where ligament damage is severe or if non-invasive measures fail, surgery may be necessary to repair or reconstruct the damaged structures. Follow-up care is essential to monitor healing progress and prevent recurrence. Proper rehabilitation can enhance recovery and restore normal function.