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  • Title: Comparison of arthrodesis and metallic hemiarthroplasty of the hallux metatarsophalangeal joint. Surgical technique.
    Author: Raikin SM, Ahmad J.
    Journal: J Bone Joint Surg Am; 2008 Oct; 90 Suppl 2 Pt 2():171-80. PubMed ID: 18829931.
    Abstract:
    BACKGROUND: Currently, arthrodesis is the most commonly performed surgical procedure for the treatment of severe arthritis of the first metatarsophalangeal joint. The objective of this study was to compare the long-term clinical and radiographic outcomes of a metallic hemiarthroplasty with those of arthrodesis for the treatment of this condition. METHODS: A series of patients with osteoarthritis of the first metatarsophalangeal joint were treated with either a metallic hemiarthroplasty or an arthrodesis between 1999 and 2005. Postoperative satisfaction and function were graded with use of the American Orthopaedic Foot and Ankle Society Hallux Metatarsophalangeal Interphalangeal (AOFAS-HMI) scoring system, and pain was scored with use of a visual analogue scale. RESULTS: Twenty-one hemiarthroplasties and twenty-seven arthrodeses were performed in forty-six patients. Five (24%) of the hemiarthroplasties failed; one of them was revised, and four were converted to an arthrodesis. Eight of the feet in which the hemiprosthesis had survived had evidence of plantar cutout of the prosthetic stem on the final follow-up radiographs. At the time of final follow-up (at a mean of 79.4 months), the satisfaction ratings in the hemiarthroplasty group were good or excellent for twelve feet, fair for two, and poor or a failure for seven. The mean pain score was 2.4 of 10. All twenty-seven of the arthrodeses achieved fusion, and no revisions were required. At the time of final follow-up (at a mean of thirty months), the satisfaction ratings in this group were good or excellent for twenty-two feet, fair for four, and poor for one. The mean pain score was 0.7 of 10. Two patients required hardware removal, which was performed as an office procedure with the use of local anesthesia. The AOFAS-HMI and visual analogue pain scores and satisfaction were significantly better in the arthrodesis group. CONCLUSIONS: Arthrodesis is more predictable than a metallic hemiarthroplasty for alleviating symptoms and restoring function in patients with severe osteoarthritis of the first metatarsophalangeal joint.
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