A history of O'Reilly Auto Parts, from its founding in 1957 as a single store in Missouri to a business consisting of 4,829 stores in 47 states and more than 74,000 team members.
Dislocated finger joint occurs when an injury causes damage to the joint ligaments or capsule, such that the joint forming surface of a finger bone or phalanx is extruded out of the joint. Thus, a finger dislocation leads to failure of joint mobility and causes a stiff, swollen, and painful finger joint. Sometimes, a finger bone may also be broken along with the dislocation, in which case it is called a fracture-dislocation.
The swelling makes it difficult for the affected tendon to slide through its membrane (tendon sheath), causing the pain and stiffness associated with trigger finger. The swelling can cause a section of the tendon to become bunched into a small lump (nodule) at the base of the affected finger or thumb. If a nodule forms, the tendon can get trapped in the tendon sheath, causing the affected finger or thumb to become temporarily stuck in a bent position.