Trigger finger is a common hand condition. It is also known as stenosing tenosynovitis. When it occurs in the thumb it is called “trigger thumb.” The tendons that bend the fingers glide easily with the help of pulleys that form a tunnel for the passage of the tendons. These pulleys hold the tendons close to the bone. Trigger finger occurs when the pulley becomes too thick at its opening, so the tendon cannot glide easily through it. You will experience “triggering” as the finger is straightened from a bent position. This may be accompanied with a sudden sharp pain at the base of the finger. In severe cases, the finger cannot be straightened further as the tendons fail to glide at all.
Arthritis of the hand
Hand arthritis is a common condition. In majority, it is due to degenerative changes to the joint cartilage and “wear and tear” process (primary osteoarthritis). Sometimes the joint can be injured from previous trauma or fracture (traumatic osteoarthritis) . You can experience stiffness of the affected joints. These joints can be painful. Swelling and lumps can appear at the joint from the increased joint fluid (effusion) or from the bone spurs along the margin of the joint. In severe cases, the fingers and wrist can be deformed and some of the hand functions can be impaired.
Extensor tendon subluxation
Soft Tissue TumourCommon soft tissue tumour of the hand and wrist are ganglion and giant cell tumour of the tendon sheath. Others include gloms tumour, nerve tumour, epidermoid inclusion cyst, foreign body granuloma, vascular tumour and malformation and tendon fibroma.
Most of these tumours are benign and non cancerous. Some are painless while others may have variable degree of pain i.e. constant pain, pain only on contact. Nerve tumour or any tumour that compresses the adjacent nerve may cause numbness.