This report cites new developments in the treatment of extra-articular hand fractures in adults. Recent reports confirm that small amounts of metacarpal shortening or dorsal angulation cause minimal functional impairment. Unilateral excision of the lateral band and oblique fibers of the extensor apparatus of the metacarpophalangeal joint facilitates proximal phalangeal fracture exposure and may improve functional recovery. Results using open mini screw fixation of oblique extra-articular metacarpal and phalangeal fractures may be comparable to those of percutaneous Kirschner wire fixation. Bicortical self-tapping mini screw fixation of extra-articular oblique metacarpal and phalangeal fractures simplifies screw insertion and provides stability comparable to that of fractures fixed with lag screws. Percutaneous intramedullary wire fixation may afford suitable fixation for unstable extra-articular oblique as well as transverse metacarpal fractures. Locked intramedullary nails may offer similar advantages. Unicortical screw fixation of mini plates securing transverse extra-articular metacarpal fractures affords stability comparable to that of bicortical screw fixation while creating less bone damage. The dissection required for plate fixation and the small surface area of transverse fractures delay and occasionally impair bone healing. Primary bone grafting of diaphyseal defects in clean stable wounds may shorten and simplify treatment and decrease morbidity. As little as 1.7 mm of flexor tendon excursion during the first 4 weeks after reduction or repair may substantially diminish peritendonous adhesions at the fracture site. Synchronous wrist and digital exercises may also reduce peritendonous fracture adhesions. Early motion of adjacent joints in closed simple metacarpal fractures expedites recovery of motion and strength without adversely affecting fracture alignment and leads to earlier return to work. Level of Evidence: Level V (expert opinion).



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