Chronic central wrist pain that persists despite treatment? Kienböck's disease can be invisible on plain X-ray. Learn how it is diagnosed, staged with the Lichtman classification, and treated.
Chronic wrist pain can be difficult to diagnose with certainty. In some patients, symptoms persist for months or even years despite conservative treatment and imaging.
One possible cause is Kienböck's disease — a condition caused by disrupted blood supply to the lunate bone of the wrist. In the early phase, symptoms are non-specific and the first X-ray may appear normal, so patients are often treated for wrist overuse or non-specific pain for a long time.
Accurate diagnosis allows treatment to be planned at the stage when the prognosis is best.
The lunate is one of eight small carpal bones, situated in the central part of the wrist. It plays a critical role in wrist stability and in transmitting loads between the forearm and hand.
In Kienböck's disease, blood supply to the lunate is disrupted. Inadequate perfusion gradually weakens the bone structure, leading to collapse of bony fragments and secondary changes in surrounding carpal bones. In advanced stages this causes chronic pain and permanent loss of wrist function.
The exact cause is not always clear. Factors that may contribute include:
In many cases the disease develops slowly and initially produces no characteristic symptoms.
The most common symptoms are:
Symptoms may initially resemble wrist overuse or a minor injury — which is why the condition is often undiagnosed for a long time.
In the early stage, changes in the lunate may not be visible on plain X-ray — the radiograph can appear normal even when the patient is in pain.
The most sensitive investigation for early-stage disease is MRI, which allows assessment of bone perfusion and internal structure. For persistent wrist pain, more detailed imaging is therefore essential.
The severity of Kienböck's disease is most commonly assessed using the Lichtman classification, which describes how much the lunate structure has changed and whether the disease has begun to affect other parts of the wrist.
**Stage I** — earliest phase. The patient has wrist pain but X-ray is often normal. Only MRI can detect perfusion abnormalities.
**Stage II** — the lunate begins to show increased density on X-ray. Structure changes, but the shape is still preserved.
**Stage III** — lunate collapse occurs and wrist biomechanics are disrupted.
**Stage IV** — most advanced stage. Secondary osteoarthritis of the entire wrist develops.
Early detection — at stage I or II — offers the best prognosis and the widest range of treatment options.
Diagnosis is based on careful clinical examination and the patient's symptom history. Imaging used includes:
Imaging studies allow the stage to be assessed and appropriate treatment to be planned.
Treatment depends on disease stage and symptom severity.
In early stages, conservative management is used — wrist offloading, temporary immobilisation, physiotherapy, and pain control.
In more advanced cases, surgery may be necessary. The surgical goal is to improve wrist biomechanics, reduce pain, and halt disease progression.
The earlier Kienböck's disease is identified, the greater the chance of effective treatment and halting its progression.
Untreated disease can lead to lunate collapse, secondary wrist osteoarthritis, and permanent loss of hand function.
Seek a consultation if:
Accurate diagnosis excludes more serious causes of wrist pain and guides the right treatment plan.
Kienböck's disease causes central wrist pain that worsens with loading and does not resolve with rest. Unlike overuse pain, it persists for weeks or months and gradually intensifies.
Not always. In stage I, the X-ray may appear completely normal. MRI is the most sensitive investigation — it detects perfusion abnormalities before any changes are visible on plain radiograph.
No. Early-stage disease can be managed conservatively with offloading, immobilisation, and physiotherapy. Surgery is considered for more advanced stages or when conservative treatment fails to provide improvement.
Need individual advice? Book an orthopedic consultation in English.
Book consultation in EnglishThis content is informational and does not replace an individual medical consultation.