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 is a scapholunate collapse?

Scapholunate advanced collapse (SLAC) is a characteristic degenerative clinical wrist condition of progressive deformity, instability, and arthritis that affects the radiocarpal and mid-carpal joints of the wrist.

What causes scapholunate widening?

Scapholunate dissociation most commonly results from trauma. It is the leading cause of SLAC (scapholunate advanced collapse) wrist, which is the most common pattern of degenerative arthritis in the wrist 4.

What are the implications for wrist function with untreated Scapho lunate dissociation?

Both of these lead to increased disability at the wrist, but a SLAC refers to a specific pattern of osteoarthritis and subluxation resulting secondary to an untreated disassociation that can lead to severe disability at the wrist.

How long does a proximal row Carpectomy last?

Overall, proximal row carpectomy remains a technically simple procedure and is capable of preserving motion and grip strength beyond 20 years; however, patients should be instructed that failure rates can be as high as 15%, pain relief may deteriorate over time, and patients may require daily medication to help resolve …

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 is a DISI deformity?

Dorsal intercalated segment instability (DISI) is a deformity of the wrist where the lunate angulates to the posterior side of the hand.

How do you treat a scapholunate ligament tear?

Treatment for a Scapholunate ligament tear This may involve a wrist brace or a cast for 2-6 weeks, minimizing activity that causes pain such a tight gripping or pushing, and anti-inflammatory medications such as ibuprofen.

How do you fix a SLAC wrist?

Mild symptomatic SLAC can often be managed nonoperatively with periodic steroid injections, splinting, and NSAIDs. If the grip strength of the SLAC wrist is greater than 80% of that of the uninvolved wrist and the condition is not giving rise to significant impairment, then living with SLAC is a valid option.

Is SLAC wrist painful?

WHAT SLAC WRIST ARTHRITIS? SLAC stands for “scapho-lunate advanced collapse”. It is a painful condition of the wrist. The scaphoid and lunate are two small bones in the wrist held tightly together by a band of tissue called the scapholunate ligament.

Why is lunate most commonly dislocated?

A lunate dislocation is separation of the lunate from both the capitate and the radius. Perilunate and lunate dislocations result when great force is applied to a hyperextended wrist. They usually result from a fall on an outstretched hand or occur in a motor vehicle crash.

Can a torn wrist ligament heal by itself?

Minor-to-moderate wrist ligament tears may heal on their own with home treatments like the RICE protocol. Rest: Rest the injured wrist typically for at least 48 hours. Ice: Use ice packs immediately after the injury to reduce pain and swelling; 20-30 minutes at a time, several times a day.