SLAC Wrist Surgery

Understanding Scapholunate Advanced Collapse (SLAC) Wrist

Scapholunate Advanced Collapse (SLAC) is a progressive condition that affects the wrist joint. It typically begins after an initial injury to the scapholunate ligament, one of the key stabilizers of the wrist. Over time, this ligament damage can lead to abnormal motion between the scaphoid and lunate bones, creating an unstable joint.

As instability progresses, cartilage wear may develop, leading to wrist arthritis. This progressive arthritis is known as scapholunate advanced collapse.

What Are the Symptoms of SLAC Wrist?

SLAC wrist has several symptoms that can significantly impact daily life. The condition is often a result of a scapholunate ligament injury, where this important ligament in the wrist is torn.

Here are the key symptoms to watch for:

• Wrist Pain: The most common symptom of SLAC wrist is pain in the wrist. Pain usually starts gradually and worsens over time, especially with activities that involve gripping or twisting.
• Swelling and Tenderness: The surrounding ligaments and other soft tissue structures surrounding the wrist may become swollen and tender to the touch. This is due to the inflammation caused by the instability of the wrist bones and the resulting arthritis.
• Decreased Wrist Motion: As the condition progresses, you may notice a reduction in your wrist’s range of motion. Simple tasks like opening jars, turning doorknobs, or lifting objects can become difficult and painful.
• Weakness: The wrist might feel weaker than usual. This weakness is due to the deteriorating function of the wrist joint as the bones and ligaments become more damaged.
• Clicking or Popping: You might hear or feel clicking, popping, or grinding sensations in the wrist. These noises are caused by the abnormal movement of the wrist bones due to the torn ligament.

If you experience these symptoms, it’s important to seek medical advice. A scapholunate ligament injury needs proper diagnosis and treatment to prevent further damage.

Diagnosing SLAC Wrist

Diagnosis usually involves a thorough physical examination, imaging studies, and specific maneuvers, such as the Watson scaphoid shift test, to confirm scapholunate instability and assess progressive weakness in the scapholunate interval.

In more advanced cases, wrist diagnosis may reveal severe joint damage and chronic wrist osteoarthritis.

Who is a Candidate for SLAC Wrist Surgery?

Surgery is not always the first step. Many patients initially try nonsurgical treatment, such as activity modification, wrist splinting or cortisone injection to relieve inflammation and manage symptoms. Surgical treatment may be discussed when these measures no longer provide adequate relief.

The following symptoms may indicate surgery for SLAC wrist:

• Significant pain that interferes with daily activities and has not improved with non-surgical treatments.
• Significant degeneration of the wrist joint due to a scapholunate ligament injury.

Factors such as age, activity level, overall health, and the presence of more severe joint damage all influence decision-making. The goal of any surgical treatment is to address pain while preserving as much wrist motion as possible.

How to Prepare for the Surgery

Preparation for SLAC wrist surgery includes:

• Medical Evaluation: A thorough examination by your doctor to assess your overall health and the extent of the wrist damage. You will also discuss options such as local or general anesthesia.
• Imaging Tests: X-rays, MRIs, or CT scans to get a detailed view of the wrist joint.
• Pre-Surgical Instructions: Following specific guidelines provided by your surgeon, such as fasting before surgery and adjusting medications.
• Post-Surgery Planning: Arranging for help at home and planning for rehabilitation exercises to aid in recovery.

What Happens During SLAC Wrist Surgery?

There are several surgical options for SLAC wrist. Most procedures are performed through surgical incisions or minor incisions, depending on the technique. The surgeon may also place metal pins temporarily in the wrist joint.

Surgical treatment for SLAC wrist includes the following:

1. Wrist Ligament Reconstruction: This procedure aims to repair or replace the torn scapholunate ligament, restoring stability to the wrist and preventing further damage. This ligament reconstruction procedure uses tissue obtained from the palmaris longus tendon from the same wrist or another tendon graft to stabilize the wrist ligament.
2. Partial Wrist Fusion Surgery: In this surgery, some of the wrist bones are fused together to reduce pain while retaining some wrist motion. This is also known as limited wrist fusion. Fusion involves removal of the cartilage within the wrist joint. Then, metal pins or metal wires hold the wrist bones in position until they fuse together.
3. Total Wrist Arthrodesis (Fusion): In this procedure, all the wrist bones are fused into one solid bone, eliminating pain but also significantly limiting wrist motion.
4. Proximal Row Carpectomy with or without ligament interposition: This is a specialized surgery that seeks to alleviate the pain while maintaining some degree of motion in the wrist joint.
5. Wrist Joint Replacement: This involves replacing the damaged wrist joint with an artificial one, which can help maintain wrist motion and function. Older silicone rubber joints are less commonly used today but may still be discussed in select cases.

The choice of procedure depends on the severity of the condition and the patient’s specific needs.

What Are the Benefits of SLAC Wrist Surgery?

SLAC wrist surgery offers several benefits for those suffering from Scapholunate Advanced Collapse. Here are some key advantages:

• Pain Relief: One of the most significant benefits of SLAC wrist surgery is pain relief. The surgery addresses the root cause of the pain, whether through a ligament reconstruction procedure, partial wrist fusion, or total wrist fusion. By stabilizing the wrist joint or replacing damaged parts, the surgery helps reduce or eliminate the chronic pain associated with SLAC wrist.
• Improved Wrist Function: Surgery can improve wrist function and range of motion. For instance, a ligament reconstruction procedure restores stability to the wrist, allowing for better movement and functionality in daily activities.
• Enhanced Quality of Life: By reducing pain and improving wrist function, SLAC wrist surgery can significantly enhance the quality of life. Patients often find it easier to perform everyday tasks, engage in hobbies, and return to work without the constant discomfort and limitations caused by the condition.
• Prevention of Further Damage: Early surgical intervention can prevent further deterioration of the wrist joint. This proactive approach helps maintain the health of the wrist and avoid more extensive damage over time.

The specific benefits depend on the procedure performed, the extent of ligament damage, and whether the scapholunate ligament is partially injured or completely torn. The aim is usually to balance pain relief with preservation of motion.

Recovery Timeline for SLAC Surgery

In the first few days following surgery, it is common to experience some pain, swelling, and discomfort as the body begins the healing process.

During the first three to six weeks, you may be instructed to wear a splint or brace to help protect the surgical repair and limit wrist movement while healing occurs. Mild to moderate pain and stiffness can still occur during this phase as healing continues.

Around six to eight weeks after surgery, guided exercises with a hand therapist may begin to gradually improve your range of motion. Light daily activities may be introduced, and some individuals are advised to continue wearing a splint, particularly at night or during certain activities.

By approximately eight to 10 weeks, some patients may be cleared to resume driving, depending on comfort, strength, and functional control of the wrist.

Between eight and 12 weeks, ongoing therapy often focuses on improving strength and flexibility, allowing for more frequent use of the hand during everyday tasks.

At three to six months after surgery, a gradual return to more demanding activities or sports may be possible if your care team determines healing is progressing well. For many individuals, achieving near-full strength and range of motion can take six months or longer.

Expert Care for SLAC Wrist Surgery in Georgia

If you are experiencing persistent wrist symptoms or have questions about SLAC wrist surgery, our specialists at Georgia Hand, Shoulder & Elbow are here to help. With convenient locations in Marietta and Atlanta, GA, our team offers comprehensive evaluations and individualized treatment plans. Contact us today to schedule a consultation and learn more about options that may support your wrist health and long-term function.