Early hybrid nonbridging external fixation of unstable distal radius fractures in patients aged ≥50 years

Abstract

Objective We evaluated hybrid nonbridging external fixation (NBEF) supplemented by K-wires as an effective and safe treatment option for osteoporotic distal radius fractures (DRFs) in a retrospective case series. Methods Sixteen extra-articular and one intra-articular DRF were treated by NBEF from 2016 to 2018 (mean patient age, 61.8 years; 15 women, 1 man). Radiographic parameters (volar tilt, radial inclination, and ulnar variance), range of motion, grip power, the visual analog scale score, and the Disabilities of the Arm, Shoulder and Hand (DASH) score were assessed at 4 weeks, 6 weeks, 6 months, and 12 months postoperatively. Results The volar tilt and radial inclination were restored after surgery and maintained well. The mean visual analog scale score was 4 ± 1 at 4 weeks. Range of motion was restored to 79% to 91% at 6 weeks. The DASH score was good before NBEF device removal. Two superficial pin-tract infections were easily treated with antibiotics. Conclusions Hybrid NBEF transfixes DRFs in a multiplanar fashion, and augmentation with percutaneous K-wires provides direct fixation in radial shift and withstands axial loads in fracture fragments. It allows early mobilization with rigid fixation. Hybrid NBEF is reliable for unstable extra-articular and simple intra-articular DRFs in older patients. Clinical Study registration number ChiCTR1900021712