[Micro-locking plate external fixation for the treatment of proximal phalanx comminuted fractures]

To explore clinical efficacy of external placement of micro-locking plate combined with small incision reduction in treating proximal phalanx comminuted fractures.

From January 2018 to December 2019, 17 patients with proximal phalanx comminuted fractures were treated with micro-locking plate combined with small incision open reduction, including 13 males and 4 females, aged from 16 to 64 years old with an average of (37.2±20.1) years old. Two patients were accompanied by soft tissue extrusion and opening injuries, which were treated with fixed treatment after the first-stage emergency debridement. Curative effect was evaluated according to total active flexion scale (TAFS) of American Hand Surgery Association at 6 months after operation;and fracture healing, nailing, local soft tissue healing, complications were observed.

All patients were followed up from 6 to 12 months with an avaerge of(9.3±3.6) months. Two patients occurred delayed union, 1 occurred local skin necrosis and was treated with the second-stage skin grafting to repair wound surface. No external screw breakage or infection was reported, skin soft tissue healed favorably and reached bony union, the union time from 12 to 24 weeks with an average of (15.7±2.1) weeks. According to TAFS standard, 9 patients got excellent result, 5 good and 3 poor at 6 months after operation.

External micro-locking plate combined with small incision reduction in treating proximal phalanx comminuted fracture, which has advantages of good condition of skin and soft tissue, simple operation, early functional exercise, good range of motion of interphalanx joint, and function score of recovery period is high.