What causes scapholunate advanced collapse?
SLAC is most commonly a consequence of undiagnosed or untreated scapholunate ligament injury and rotatory subluxation of the scaphoid bone resulting in radioscaphoid malalignment, progressive chondromalacia, and osteoarthritis.
What causes scapholunate instability?
Injuries to the scapholunate joint are the most frequent cause of carpal instability and account for a considerable degree of wrist dysfunction, lost time from work, and interference with activities.
How common is SLAC wrist?
There are three different patterns of arthropathy seen about the wrist which include SLAC, triscaphe arthritis (between the trapezium, trapezoid and distal scaphoid) and a combination pattern. SLAC wrist is the most common type of wrist arthritis and accounts for approximately 55 % of all wrist arthritis [14].
What does SLAC wrist mean?
Scapholunate advanced collapse (SLAC) of the wrist is the most common pattern of degenerative arthritis in the wrist. The hallmark of SLAC is scaphoid or scapholunate ligament injury with collapse on the radial side of the wrist. Watson and Ballet coined the term SLAC wrist in 1984.
How painful is a SLAC wrist?
Patients will likely present with some degree of pain although not all SLAC wrists are symptomatic. Pain is common and may be aggravated by heavy use and is sometimes associated with a clunking sensation during movement.
Why does my wrist collapse?
If a ligament is torn, it may allow a wrist bone to shift out of place, resulting in improper wear and tear of the cartilage. A ligament between the Scaphoid and the Lunate is at risk in a wrist injury. If it tears and causes arthritis, it is called Scapho-Lunate Advanced Collapse (SLAC) wrist arthritis.
How do you fix scapholunate instability?
3 Main Treatments for a Scapholunate Ligament Injury
- Immobilization of the Wrist. Immobilization with a wrist orthosis in the acute stages is a common intervention provided by a therapist in the acute stage.
- Wrist Stabilization. Wrist stabilization involves strengthening the SL “friendly” muscles.
- Proprioceptive Exercise.
What is Stage 2 SLAC wrist?
Stage 2 scapholunate advanced collapse (SLAC) wrist treated with 4-bone fusion. Scapholunate advanced collapse (SLAC) wrist from nonunion of the scaphoid. The patient underwent 4-bone fusion. Scapholunate advanced collapse (SLAC) wrist from nonunion of the scaphoid. The patient underwent 4-bone fusion.
Is wrist fusion surgery painful?
While you will lose some range of motion after wrist fusion surgery, you will no longer have pain, and you will regain the lost strength in your wrist over time. You will once again be able to grip and have strong flexion in your hand.
What is Stage 3 SLAC wrist?
Stage III SLAC wrist entails sclerosis and joint space narrowing between the lunate and capitate. Eventually, the capitate will migrate proximally into the space created by the scapholunate dissociation.