S66.310

Clinical Causes: Sudden injury from accidental trauma or impact Repetitive strain from activities involving frequent finger extension, such as typing, playing instruments, or sports Overexertion during strenuous movements or lifting heavy objects Poor ergonomics leading to excessive strain on the finger tendons Overuse injuries from prolonged or repetitive tasks

Key Symptoms: Pain along the back of the right index finger and at the wrist and hand level Swelling and tenderness in the affected area Limited range of motion and difficulty extending the finger Weakness or fatigue in the finger muscles during activity Discomfort that worsens with movement or touch

Diagnosis Path: A healthcare professional will perform a physical examination to assess pain, swelling, and range of motion in the finger, wrist, and hand. Imaging tests such as ultrasound or MRI may be ordered to visualize soft tissue damage, confirm the extent of the strain, and rule out other injuries like fractures or ligament tears. A detailed medical history regarding recent activities and injuries is also considered.

Treatment Protocols: Treatment focuses on relieving pain, reducing inflammation, and restoring function. It may include the following approaches: - Rest and physical activity modification to prevent further strain - Ice application to reduce swelling and pain - Over-the-counter pain relievers or anti-inflammatory medications - Compression with bandages or splints to support the finger and wrist - Elevation of the hand to decrease swelling - Physical therapy exercises to promote healing and improve flexibility - Gradual return to activity with proper ergonomics and technique In rare cases, more invasive interventions such as corticosteroid injections or surgical repair may be necessary if there is significant damage or failure to improve with conservative management.