The use of bioabsorbable compression screws & polyethylene tension band for fixation of displaced olecranon fractures

Abstract Introduction Transverse fractures of the olecranon are commonly fixed using tension band wiring techniques, however the superficial nature of this area leads to high complication rates requiring removal of metalwork. The purpose of this retrospective study is to report and evaluate functional outcomes of polyethylene tension-band and bioabsorbable Magnesium alloy screw fixation of olecranon fractures. Methods A retrospective study was undertaken. Demographics, injury type and post-operative details were collected. All patients were treated in the same institution by a single surgeon. Primary outcomes included radiographic healing and post-operative range of motion. Secondary outcomes included complications, post-operative Mayo Elbow Performance Index and DASH scores. Results A total of five cases were identified. Mean age was 52.4. All fractures demonstrated post-operative radiographic union. All patients had range of motion above 100°, with full protonation and supination. One patient did have an extension lag of 15°. Patient report outcomes were excellent, with mean MEP Score of 97 and mean DASH Score of 4.5. No patients required removal of metalwork. Conclusion Surgical repair of olecranon fractures is often complicated by the need for re-operation. This method provides both intramedullary fixation and conversion of distraction forces to compression forces with bioabsorbable materials, and aims to reduce the high re-operation rates commonly seen by avoiding the use of permanent indwelling metal hardware. It may further provide osteoconductive benefits, and deter infectious complications.