![]() ![]() ![]() In addition, stretching and strengthening exercises are necessary to improve the strength of the muscles of the hand and re-educate the muscles to recover the use of the thumb and hand. In either case, orthosis or surgery, the joint needs to be immobilised for between four and six weeks for correct recovery from Bennett’s dislocation and to prevent possible after-effects, such as early osteoarthritis, weakness in grasping movements and chronic pain. In the case of Bennett’s dislocation, screws or Kirschner wires are used. Osteosynthesis is a surgical procedure for treating fractures, in which they are reduced and fixed in a stable way. If the orthosis does not work, it is necessary to resort to surgery or osteosynthesis. Orthoses immobilise the area of the Bennett’s dislocation. This reduces pain and oedema and prevents tendon retraction. This orthosis enables metacarpophalangeal immobilisation of the thumb, while the rest of the fingers remain free. One of them is use of an orthosis, such as Orliman’s wrist immobilisation splint (in dorsiflexion) with thumb support. There are several techniques for reducing Bennett’s fracture. Techniques for reducing Bennett’s fracture In addition, the deformity that appears leads to osteoporosis. This causes a number of abnormalities that make injuries easily appear in the area. It cannot be reduced conservatively because, when the fracture occurs, a space forms between the fragments which usually fills with a callus. It is a fracture of the base of the thumb which extends into the joint of the small. This instability is what makes Bennett’s dislocation complicated to treat. Bennetts fracture is the most common type of fracture of the thumb. Since it is an intraarticular injury, it is very unstable. The other fragment is the remainder of the metacarpal and moves backwards, upwards and outwards. ![]() One small, wedge-shaped and intraarticular, which remains in place as it is attached to the trapezium. ![]() When a Bennett’s fracture occurs, oblique at the base of the first metacarpal, it breaks into two fragments. This is where the thumb makes its most important movements. In addition, the base of the thumb and back of the hand often become inflamed and bruises appear.īennett’s dislocation treatment is complicated because of its location: the trapeziometacarpal joint. This leads to severe pain, weakness of the thumb, lack of alignment and movement difficulties. 2 Techniques for reducing Bennett’s fractureĪ direct blow to a flexed thumb can cause Bennett’s dislocation.A tendon that attaches to the base of the thumb metacarpal, called the abductor pollicis longus, is responsible for the joint dislocation that can occur with a Bennett’s fracture. You use such precision movements for such activities as counting coins and handwriting. The thumb also acts as a stabilizer to allow your fingers to manipulate items. The thumb works as a grip when you use a hammer or hold a glass. The movements of the thumb allow it to work as an anchor to help the fingers hold objects. You move your thumbs hundreds of times each day. A Bennett fracture is a fracture of the base of the thumb resulting from forced abduction of the first metacarpal. Your thumb can move up and down, in and out, and rotate slightly to touch your fingers (opposition). Your thumb joint is the only joint in your hand that can move in all directions. Strong ligaments and muscles hold the CMC joint in position and provide a combination of mobility and stability. The fracture must involve the first carpometacarpal joint to be. The cartilage allows the bones to glide easily during motion. The Bennett fracture is an intraarticular fracture of the base of the first metacarpal. Smooth cartilage covers the ends of the metacarpal and trapezium. The metacarpal bone at the base of your thumb and the trapezium bone in your wrist meet to form the carpometacarpal (CMC) joint. ![]()
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