Original researchThe Effect of the Lapidus Arthrodesis on the Medial Longitudinal Arch: A Radiographic Review
Section snippets
Study Population
The medical charts of patients that underwent a Lapidus arthrodesis between November 1999 and September 2004, were retrospectively analyzed. Criteria for inclusion in this study were as follows: (1) patients must have undergone an isolated first metatarsocuneiform joint fusion and soft tissue capsular balancing procedure for hallux valgus correction due to first ray insufficiency; (2) subjects must have demonstrated radiographic and clinical evidence of fusion of the first metatarsocuneiform
Results
Thirty-nine feet in 35 patients met the inclusion criteria and were included in the analysis. The mean patient age was 40.8 (range, 8–56 years) years. There were 22 left feet and 17 right feet. All of the patients showed confirmation of first metatarsal-medial cuneiform fusion as evidenced by the radiographic appearance of trabecular bone bridging the arthrodesis site, without evidence of radiolucency; and further confirmation was ascertained by review of the medical records. The average
Discussion
Numerous studies have recognized the role of the Lapidus fusion in the treatment of first ray insufficiency (1, 2, 3, 4, 5). Among the various subjective and objective criteria used to appraise the procedure, differences in pre- and postoperative radiographic angular relationships and distances have traditionally been used to assess the effectiveness of an intervention in regard to reestablishing function of the foot. In fact, angular ranges that approximate normal values have been shown to
Acknowledgment
Statistical analysis was provided by The Division of Research, Kaiser Permanente.
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