DISTAL RADIAL FRACTURE: PRELIMINARY RESULTS WITH A NEW NON-BRIDGING EXTERNAL FIXATION TECHNIQUE

Abstract

Distal radial fractures represent 17% of fractures in the Italian E.R. In the last years many different techniques accompanied the traditional treatment of closed reduction and cast immobilization such as closed reduction + pinning + cast, “epi-block” fixation, ORIF with dorsal and/or volar plates, screws and external fixation. These techniques are mostly followed by a period of immobilization with cast which is optional in A.O. type A fractures and is usually necessary in type B and C fractures.

At the University Hospital “Policlinico Umberto I” of Rome E.R. we have started treating these fractures with a new fixation system which we projected. This system provides a non-bridging external fixation. The synthesis is guaranteed by two or more K-wires which can be intramedullary or x-crossing the cortex and/or inter-fragmentary. These K-wires are connected with two radial pins by an external bar. This radial to radial system gives stability to the fracture and allows the patient to move the wrist immediately. We remove this fixation system after 40 days.

From July 2008 to August 2009 we treated 56 distal radial fractures. Clinical assessment was performed every seven days until removal of external fixation system, then at 2, 3, 6 and 12 months. Radiographic assessment was performed at 30 and 40 days, consequently at 2, 3, 6 and 12 months. Outcome was measured on the basis of range of motion, grip and pinch strength, DASH and PRWE scores. A questionnaire was used to determine patient satisfaction, and a detailed analysis of complications was carried out. All patients had excellent or good results and were satisfied with the clinical outcome. At 60 days after surgery 90% of patients demonstrated complete clinical and functional recovery. After 3 months 100% of patients demonstrated complete clinical and functional recovery. After 6 months and 12 months no modification of the obtained result was detected.