A dislocation occurs when the bone moves out of its normal position in the joint. The joint is the space between two bones. A finger dislocation is usually obvious as the finger will be crooked and you will have difficulty moving it.
The joint is supported by ligaments. These ligaments can get stretched or torn with a dislocation. Sometimes a dislocation can break a piece of your bone. Treatment depends on the severity of damage, and can range from splinting, special exercises, or surgery. It is very common to have swelling in the joint for many months after a dislocation.
Warning: graphic images below
This is a case of a 20-year-old man who dislocated his thumb interphalangeal (IP) joint.
This was an open dislocation--the bone had torn open his skin!
The top of his bone, or the joint, is seen to the right. The rope-like structure on the left is his tendon. It had gotten stuck behind the bone so the joint could not be pushed back into position until the tendon was moved over with surgery.
Your hand hurts, is it carpal tunnel?
1. Tingling in the fingertips, usually the first 3 (thumb, index, middle)
2. Pain in the fingers and wrist that wake you up at night
The carpal tunnel is a small space in the wrist that contains the median nerve and 9 tendons that go up to the fingers. The floor of the tunnel is made up of the hand bones, which form a semi-circle. The roof goes from the ends of the semi-circle, and it is called the transverse carpal ligament.
Not everyone with carpal tunnel syndrome needs surgery! Symptoms can often be corrected with proper splinting, therapy and behavior modifications.
There are 27 bones in the hand. Here is an xray and photo of the left hand.
The hand is a complex structure made up of 27 bones, tendons, nerves and blood vessels. The American Society for Surgery of the Hand has an extensive listing of all the structures along with diagrams.