Wrist joint dislocation
Dislocation in the wrist is very rare. Lesions that are taken before the invention of X-rays for sprains, fractures were classical radius. Also rare and some dislocation of the ulna in the back or palm side of the wrist. From sprains wrist bones most often observed dislocations lunate bone in the palm side. Replace the small bones of the wrist are almost never fails. Therefore it is necessary to resort to surgery, which has little effect on the good work of the wrist.
From finger dislocation most frequently observed dislocated proximal phalanx of the thumb on the back of the head metacarpal bone and is derived from the forced extension of the thumb. This pastern, the head breaks the capsule on the palmar side.
Reduction of thumb dislocation (video).
Fingers dislocation symptoms
Thumb overly unbent at the base, in the interphalangeal joint is bent, so is shtykoobraznuyu form. On the rear metacarpal detectable protrusion base phalanx and on the palmar surface - metacarpal head. In cases of dislocation of the thumb, are difficult to reposition between articular ends infringed muscle tendon of long flexor (m. flexoris pollicis longi) or amputate part of the bag with the sesamoid bones (ossa sesamoidea), to which are attached two short flexor muscles of the head of the thumb (fl . pollicis brevis).
Some people may arbitrarily create a subluxation of the thumb extensor much straining and producing dorsiflexion finger at right angles. Reduction of the rear dislocation of the thumb is made by strong hyperextension it. It promotes the release of disadvantaged sesamoid bones and tendons, which are set into place by traction followed by flexion of the main phalanx. When you reposition the rear dislocation of the thumb needs a short-term intravenous anesthesia. If you encountered difficulties often need surgical reduction.
Thumb dislocation to the palm direction are rare and occur from excessive bending. Reduction of their achieved by stretching, dorsiflexion, and direct pressure on the acting in the palm side of the base of the phalanx. Dislocations phalanges other fingers also occur most often from excessive flexion and extension and share on the back, hands, and (rarely) side and learn the direction of the axis of inflection probing fingers and heads of central and base dislocated bones. Reduction of dislocation is usually easy - with the help of pulling on the end of the finger pressure on the base dislocated phalanx, followed by folding it - at the rear dislocation or straightening - with palm.