Carpal Injuries & Wrist Instability
Carpal injuries and wrist instability affect the small bones and ligaments of the wrist, disrupting movement and strength. Early diagnosis and treatment help restore stability, prevent chronic pain, and maintain proper hand function.
Carpal injuries often occur due to falls on an outstretched hand, sports trauma, or accidents. They may involve fractures, dislocations, or ligament damage within the wrist joint. These injuries can lead to pain, swelling, weakness, and reduced wrist motion. If left untreated, they may cause long-term instability, arthritis, or loss of grip strength. Early imaging and clinical evaluation are essential for accurate diagnosis. Proper treatment ensures optimal recovery and prevents complications.
Carpal Injuries & Wrist Instability – Types
1. Scaphoid Fracture
- A common wrist fracture involving the scaphoid bone, usually due to a fall on an outstretched hand.
- Pain is felt near the thumb side of the wrist.
- Swelling and tenderness may be mild initially.
- If untreated, it can lead to non-union or avascular necrosis.
- Early diagnosis is often missed on initial X-rays.
- Treatment includes casting or surgical fixation.
2. Lunate Dislocation
- A serious injury where the lunate bone is displaced from its normal position.
- Often caused by high-impact trauma.
- Symptoms include severe wrist pain and limited motion.
- May compress the median nerve, causing numbness.
- It is a surgical emergency.
- Treatment involves urgent reduction and stabilization.
3. Perilunate Dislocation
- Occurs when surrounding carpal bones dislocate while the lunate remains in place.
- Usually results from high-energy injuries.
- Symptoms include swelling, pain, and deformity.
- Can be associated with ligament tears.
- Delayed diagnosis is common.
- Requires surgical repair for stability restoration.
4. Carpal Bone Fracture
- Refers to fractures of any of the eight carpal bones.
- Caused by trauma such as falls or accidents.
- Pain, swelling, and reduced wrist motion are common.
- Some fractures may not be visible initially on X-rays.
- Untreated fractures can lead to chronic pain or arthritis.
- Management includes immobilization or surgery.
5. Carpal Ligament Injury
- Involves tearing or stretching of wrist ligaments.
- Often occurs due to sudden twisting or impact.
- Leads to wrist pain, weakness, and instability.
- Clicking or abnormal movement may be present.
- Can progress to chronic instability if untreated.
- Treatment includes splinting, therapy, or surgical repair.
6. Scapholunate Instability
- Occurs due to injury between the scaphoid and lunate bones.
- Common in falls or sports injuries.
- Symptoms include wrist pain and reduced grip strength.
- May cause a gap between bones seen on imaging.
- Leads to long-term arthritis if untreated.
- Treatment ranges from bracing to ligament reconstruction.
7. Lunotriquetral Instability
- A condition where the lunate and triquetrum bones lose stability.
- Caused by ligament injury or repetitive stress.
- Pain is usually felt on the ulnar side of the wrist.
- Clicking sensation may be present.
- Can affect wrist coordination and strength.
- Treatment includes immobilization or surgical repair.
8. Midcarpal Instability
- Involves instability between the proximal and distal carpal rows.
- Often due to ligament laxity or trauma.
- Symptoms include wrist pain and a “clunking” sensation.
- May worsen with wrist movement.
- Can lead to functional limitations.
- Treatment includes therapy, bracing, or surgery.
9. Radiocarpal Instability
- Occurs between the radius and carpal bones of the wrist.
- Usually due to severe ligament injury or trauma.
- Leads to pain, weakness, and reduced wrist control.
- May cause abnormal wrist alignment.
- Can progress to chronic instability if untreated.
- Treatment includes stabilization procedures or reconstruction.
Why Early Consultation Matters
Early diagnosis prevents complications like chronic instability, arthritis, and loss of wrist function. Timely treatment improves healing, restores joint stability, and maintains grip strength. Specialized care ensures accurate repair of bones and ligaments. Delayed care can lead to long-term disability and complex surgical needs.