Abstract
Introduction: Atypical femoral geometry and bone stock loss may make fitting a press-fit, traditional one-piece stem difficult, if not impossible. Modularity that permits independent fitting of the diaphysis, metaphysis, length, offset, and version may greatly facilitate reconstruction and ultimate clinical performance.
Method: We prospectively evaluated the early clinical results of Exactech’s AcuMatch®□ M-series prosthesis, a novel three-piece modular femoral stem. One hundred and twenty-seven were implanted in 114 patients. Ninety-one of these were primaries and 36 were revisions. The patients were followed prospectively and evaluated pre-operatively and at ≥2-year post-operatively.
Results: Harris hip score for primaries was 37 pre-operatively and 87 at last follow-up. Harris hip score for revision group was 35 pre-operatively and 84 at last follow-up. Four dislocations occurred and one prosthesis fractured in a 330-pound patient with deficient abductors. One prosthesis has been removed, due to sepsis in the primary group.
Conclusion: Through atraumatic milling of the bone and insertion of the implants, a minimal amount of intra-operative complications resulted. Ultimate restoration of hip biomechanics and soft tissue tension resulted in good clinical outcome with a very low dislocation rate.
These abstracts were prepared by Editorial Secretary, George Sikorski. Correspondence should be addressed to Australian Orthopaedic Association, Ground Floor, The William Bland Centre, 229 Macquarie Street, Sydney, NSW 2000, Australia.
At least one of the authors is receiving or has received material benefits or support from a commercial source.
