Hi,
Severe pain in the left thumb, particularly if it is causing a loss of grip on things, could be indicative of several conditions. Some of the possibilities include:
* De Quervain's tenosynovitis: This is a condition that causes inflammation in the tendons on the thumb side of the wrist. It can lead to pain, swelling, and difficulty gripping.
* Carpal tunnel syndrome: This is a condition that occurs when the
median nerve, which runs from the forearm to the hand, is compressed at the wrist. It can cause pain,
tingling, and
numbness in the thumb and other fingers, as well as weakness and difficulty gripping.
* Trigger finger: This condition causes one or more fingers to become stuck in a bent position, and can be painful and make it difficult to grip objects.
* Arthritis: Arthritis in the thumb joint can cause pain, swelling, and
stiffness, and can make it difficult to grip objects.
* Tendinitis: Tendinitis in the thumb can cause pain and difficulty gripping, particularly when the thumb is moved or pressure is applied.
* Nerve damage: Nerve damage in the hand or wrist can cause pain, weakness, and difficulty gripping, among other symptoms.
Given that you have had an x-ray, MRI, OT/PT, and a custom
splint without much improvement, it may be worth seeing a specialist such as a hand surgeon or a
neurologist for further evaluation and management.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Priyanka, General & Family Physician