The patient will be unable to perform functional tasks such as tying a shoe or using a key. Possible complications can be an infection, malunion or nonunion, arthritis and stiffness with contracture. Bennett fractures are associated with pain and weakness of the pinch grasp and swelling and ecchymosis over the carpal metacarpal joint of the thumb. The first differentiation clue can be found during the inspection/palpation of the location of the injury. Other common injuries involving the first metacarpal include Rolando fractures, extra-articular fractures and gamekeepers thumb Due to this fracture, the first metacarpal shaft subluxes dorsally, proximally, and radially due to the pull of the abductor pollicis longus, extensor pollicis longus, extensor pollicis brevis, and the adductor pollicus brevis, which remain attached to the fracture fragment.The base of the first metacarpal is fractured with an intraarticular extension due to the palmar ulnar fragment of the first metacarpal held in place by its ligamentous attachment to the trapezium (anterior oblique ligament) during the axial loading with the rest of the metacarpal moving in the opposite direction and the main fracture line occurring along with this point of weakness.The anterior oblique ligament is the most important for stability in the carpometacarpal joint.The ligaments in this joint are the anterior (volar) and posterior oblique ligaments, the anterior and posterior intermetacarpal ligaments, and the dorsal radial ligament.The articulation is saddle-shaped which allows greater motion.Physical therapy exercises will be ordered to enhance flexibility, range of motion and strength.The first CMCJ is unique, it has only articulation between the trapezium and the base of the first metacarpal. Surgery is followed by rest and plaster cast immobilization for about 4 weeks. Pins or screws are used to align the dislocated bones. A small incision is made at the base of your thumb. Open reduction and internal fixation (ORIF) is the most common surgery to treat Bennett’s fracture. Surgery may be recommended if you do not respond to conservative treatment options. Physical therapy to regain strength and mobility.Applying ice packs over a towel to the area to reduce swelling and pain.
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