What defines a Scapholunate ligament injury?

A scapholunate injury refers to damage or tear to the scapholunate ligament, a band of strong, fibrous tissue that connects the scaphoid and lunate bones in the wrist.

What are the prominent causes?

- Acute trauma, often due to a fall on an outstretched arm

- Chronic strain or overuse injuries, for instance, in athletes involving repetitive wrist actions

Which symptoms are often associated with these injuries?

- Wrist pain, typically localized at the dorsal side

- Clicking or snapping sensation during wrist movement

- Weakening grip strength

- Swelling and tenderness over the back of the wrist

What diagnostic approach is required for a Scapholunate ligament injury?

- Detailed clinical examination including specific ligament stress tests

- X-rays, to look for a widening scapholunate gap or rotary subluxation of scaphoid

- CT or MRI scans can provide a definitive diagnosis by depicting ligament pathology and associated bone injuries

What is the suggested treatment approach for such injuries?

- Nonoperative: wrist immobilization with a splint or cast, and non-steroidal anti-inflammatory drugs (NSAIDs) for symptom control in minor sprains

- Operative: Arthroscopic debridement and/or repair of ligament, reconstructive surgery in severe cases or chronic instability

- Timely orthopedic referral is essential to prevent long-term complications like ScaphoLunate Advanced Collapse (SLAC) wrist