7 Iunie 2026
Author: Dr. Alexandru Grecu — Senior Orthopedic and Trauma Surgeon
Medically reviewed by Dr. Alexandru Florian Grecu, Senior Orthopedic Surgeon · Published: 7 iunie 2026 · Updated: June 7, 2026
Short answer: Carpal tunnel surgery becomes necessary when conservative treatment no longer controls the symptoms, when the nerve conduction study (EMG) shows moderate or severe compression, or when weakness and wasting of the muscle at the base of the thumb appear. The last sign weighs most: a nerve compressed for too long does not recover fully, and delay leaves lasting deficits. Mild forms can be kept under control without surgery. The decision is made after a clinical examination and EMG, not just from how bothersome the symptoms are.
In mild and moderate forms, treatment starts without surgery: a night splint, activity adjustment, sometimes an injection. Many cases are controlled this way. Surgery enters the discussion when this line no longer keeps pace with the disease — either because symptoms keep returning, or because the nerve has already reached a degree of suffering that conservative treatment can no longer repair.
A nerve kept compressed gradually loses its capacity to recover. As long as it is only intermittent numbness, the margin is wide. When wasting appears — the muscle at the base of the thumb thins — part of the loss can become permanent, even after a successful operation. Surgery stops the compression; it cannot fully turn back time. That is why the timing of the operation makes the difference between a full and a partial recovery.
Not every numbness of the hand is carpal tunnel syndrome. If the little finger is also involved, the source may be the ulnar nerve, not the median. If the numbness comes from the neck and travels down the arm, it may be irritation of the nerve in the cervical spine. These are treated differently. That is why surgery is decided after a clinical examination and EMG, not from the symptom alone.
On how the procedure works, see Carpal tunnel surgery. For what the syndrome is and how it is diagnosed, see Carpal tunnel syndrome: symptoms, causes, diagnosis. On what follows, see Recovery after carpal tunnel surgery.
Mild forms, often yes, with a splint and activity adjustment. Severe forms or those with wasting do not resolve conservatively.
It is not an emergency of hours, but it is not delayed for months. The sooner after wasting appears, the better the chance of recovery.
It depends on the clinical picture. Sometimes the EMG is repeated or conservative treatment is continued; the decision is made together, at the consultation.
The shift from reversible numbness to sensory and motor deficits that can become permanent.
Dr. Alexandru Florian Grecu, senior specialist in orthopedics and traumatology and Senior Lecturer at UMF Craiova. He establishes the indication for carpal tunnel surgery after a clinical examination and EMG. Details on the About page.