PURPOSE

To compare clinical, radiological and functional outcomes of percutaneous K-wires and lateral titanium plates and screws in the management of unstable extra-articular proximal and middle phalangeal fractures.

METHODS

In a randomized controlled clinical trial, 40 patients with unstable transverse, long oblique or spiral diaphyseal fractures of the proximal and middle phalanges were divided into 2 groups: the K-wire group (20 patients), which included 12 proximal and 8 middle phalangeal fractures fixed by percutaneous K-wires; and the plate group (20 patients), which included 13 proximal and 7 middle phalangeal fractures treated with open reduction and internal fixation with a lateral titanium plate and screws. The patients were observed for at least 6 months (mean [range], 6.9 [6-8] months). Results were evaluated by total active motion (TAM), grip strength, fracture union, pain assessed by visual analog scale and the Quick-Disabilities of the Arm, Shoulder, and Hand questionnaire, and complications.

RESULTS

Clinical and radiological union was achieved in all patients except one in the K-wire group. Mean TAM was significantly better in the plate group than in the K-wire group. Both groups were similar in terms of postoperative loss of grip strength compared with the opposite healthy hand, and as assessed by visual analog scale and the Quick-Disabilities of the Arm, Shoulder, and Hand questionnaire. Fewer complications occurred in the plate group (2 of 20 patients) compared with the K-wire group (5 of 20 patients).

CONCLUSIONS

Fixation of unstable proximal and middle phalangeal fractures using a titanium plate and screws through a midlateral approach is a reliable and safe method for most fracture types and is associated with higher TAM and fewer complications.

TYPE OF STUDY/LEVEL OF EVIDENCE: Therapeutic II.