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KMID : 1130920130170020121
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Journal of Korean Foot and Ankle Society
2013 Volume.17 No. 2 p.121 ~ p.129
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Radiographic Characteristics and the Clinical Results of the Operative Treatment of the Tarsometatarsal Osteoarthritis with Hallux Valgus Deformity
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Choi Hong-Joon
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Abstract
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Purpose: To evaluate the radiographic characteristics of the tarsometatarsal osteoarthritis with hallux valgus deformity and report the clinical results of the operative treatment. Materials and Methods: This is a retrospective study of 20 patients, 22 feet who had been operated for non-traumatic tarsometatarsal osteoarthritis with hallux valgus (TMT group) and control group of hallux valgus patients without tarsometatarsal osteoarthritis (26 patients, 28 feet) from April 2004 to July 2011. Radiographic characteristics were compared between the groups, using hallux valgus angle, intermetatarsal angle, metatarsal length ratio, metatarsus adductus angle, talonavicular coverage angle, talus- metatarsal angle, calcaneal pitch angle and medial cuneiform height. Pre- and postoperative difference of metatarsal declination angle and distance between the metatarsal head were evaluated. The clinical results were evaluated by American Orthopaedics Foot and Ankle Society (AOFAS) midfoot scale and visual analogue scale (VAS). Results: Metatarsal length ratio was significantly larger in TMT group (p<0.001). Metatarsus adductus angle, talonavicular coverage angle, talus- metatarsal angle on lateral radiograph, calcaneal pitch angle and medial cuneiform height were different from control group (p<0.001, p<0.001, p=0.001, p=0.010, p=0.006). Postoperative declination of the metatarsal and distance between the metatarsal head were increased (p=0.009, p=0.001). The AOFAS and VAS score were improved (p<0.001, p<0.001). Conclusion: Non-traumatic osteoarthritis of the tarsometatarsal joints seems to be associated with long 2nd metatarsal length, metatarsus adductus and flatfoot deformity. Spur excision may be successful to relieve symptoms when the arthritis was diagnosed in early stage.
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KEYWORD
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Osteoarthritis, Tarsometatarsal joint, Spur excision, Arthrodesis
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