How do you know if you have scapholunate dissociation?

This injury often happens after a direct trauma, such as a fall during sport or in everyday life. Straight away, the wrist usually feels painful and swollen. Many people notice a clicking sensation or a strange feeling during certain movements. Turning the hand or putting weight on it can be especially uncomfortable. Symptoms can appear immediately after the injury, but sometimes they only become noticeable later, particularly if the ligament is not fully torn and the instability develops gradually over time.

Another sign is that the wrist gives way more easily under load, and the usual strength is missing. Some people find they can no longer grip things as securely as before.

Is scapholunate dissociation dangerous?

A fresh scapholunate dissociation is primarily painful and limits how well the hand works. However, if the injury is left untreated, it can lead to long-term problems. A gap forms between the two bones, which can sometimes be clearly seen on X-rays. Over time, the wrist can become increasingly unstable. In serious cases, a condition called SLAC wrist can develop. This is a form of arthritis in the wrist where the cartilage gradually breaks down and causes lasting pain.

This is exactly why it is important to get an early diagnosis and to assess the full extent of the injury carefully. The sooner treatment begins, the better the chances of fully restoring hand function.

How is the diagnosis made?

The doctor will first ask about how the injury happened and what symptoms are present. A careful examination of the wrist follows. This checks for tenderness, how well the hand moves, and whether the bones can be shifted against each other. Typical signs such as a gap between the scaphoid and lunate or a feeling of instability are often found.

An X-ray can help assess the position of the bones. In some cases, special images are needed to make the shift visible. If the findings are unclear, an MRI scan or a wrist arthroscopy (a small procedure to look inside the joint) may be useful. These allow the ligament to be examined directly and the extent of the damage to be assessed accurately.

Treatment options for scapholunate dissociation

Treatment depends on how badly the ligament is injured. With a mild overstretch or a partial tear, immobilisation in a cast or a special splint may be enough. The aim is to allow the ligament to heal and to bring the bones back into the correct position.

If the ligament is completely torn or the instability is severe, surgery is usually recommended. During the operation, the ligament is either repaired or replaced using tissue from the patient's own body. Sometimes the bones also need to be stabilised with small wires or screws until the ligament has healed firmly back in place.

After surgery, there is a period of immobilisation, followed by physiotherapy. The goal is to restore movement, strength, and stability to the hand. Healing can take several weeks to months, depending on how serious the injury is and which treatment is chosen.

What can you do yourself?

After a fresh injury, cooling the wrist and keeping it raised can help reduce swelling and ease pain. It is important not to put further strain on the joint and to get medical advice as soon as possible to find out exactly what has happened. Anyone who notices ongoing wrist pain after a fall or accident should not wait, but arrange an assessment promptly. The sooner treatment starts, the better the outlook.

After surgery or during immobilisation, it is important to follow medical instructions carefully. The hand should not be overloaded so that the ligament can heal safely. Once treatment allows, targeted exercises help to rebuild movement and strength. Working closely with physiotherapists is key during this stage.

Common questions and concerns

Many people wonder whether the wrist will ever be as strong as it was before a scapholunate dissociation. In most cases, the goal is to fully restore function. With an early diagnosis and the right treatment, there is a good chance that the hand will become strong and mobile again. However, if treatment is delayed or the ligament is very badly damaged, some instability or a mild limitation may remain.

Worrying about lasting pain or arthritis is understandable. What matters most is taking the injury seriously and following through with aftercare consistently. Regularly exercising the hand after healing and avoiding excessive strain can significantly reduce the risk of long-term problems.

There is often uncertainty about how long healing takes. This depends greatly on how serious the injury is, which treatment is chosen, and how the individual heals. Some people recover within a few weeks, while in serious cases it can take several months before the wrist is fully able to cope with load again.

In summary

Scapholunate dissociation is a serious wrist injury that should be recognised and treated early. With modern diagnostics and targeted treatment, there is a good chance of a full recovery. Anyone who notices pain and instability in the wrist after a fall or accident should not hesitate to seek medical advice. This helps prevent what starts as a small injury from becoming a lasting problem.