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Saw injuries causing phalangeal neck fractures in adults
1Department of Surgery, King Saud University, Riyadh, Saudi Arabia. moqattan@hotmail.com
Abstract:
The outcome of adult phalangeal neck fractures caused by saws has not been previously investigated. Over a 15-year period, a total of 36 cases of saw-related injuries resulting in phalangeal neck fractures of the middle phalanx of the finger or the proximal phalanx of the thumb were treated. All injuries were industrial and covered by insurance. They were all adult males with type II fractures. The fracture were managed by K-wire fixation, immobilizing the distal joint only. The proximal joints were mobilized immediately after surgery and the K-wire was removed after 5 weeks. The following 2 patterns of saw injuries were observed: dorsal impact injuries resulting in a phalangeal neck fracture and concurrent extensor tendon injury (group I, n = 20 patients), and dorsolateral impact injuries resulting in concurrent extensor (± partial flexor) tendon and nerve injury (group II, n = 16 patients). The outcome with respect to range of motion and return to work was significantly better in the former group. Major complications such as nonunion, malunion, avascular necrosis of the phalangeal head, osteomyelitis, or contractures of the proximal interphalangeal joints were not observed. Two patients (1 in each group) had superficial pin-site infection. It was concluded that adult phalangeal neck fractures caused by saws is a separate entity from the previously reported series of closed phalangeal neck fractures in adults.
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