Abstract
Objective To explore the effect of the treatment of forefoot deformities caused by rheumatoid arthritis by the method of the first metatarsophalangeal joint fusion combined with metatarsophalangeal arthroplasty from the second to the fifth toe.Methods The data of 19 patients with forefoot deformities caused by rheumatoid arthritis was retrospectively studied after receiving the treatment by the method of the first metatarsophalangeal joint fusion combined with metatarsophalangeal arthroplasty from the second to the fifth toe from June 2007 to October 2010.There were 17 females (31 feet) and 2 males (4 feet) with an average age of 56 years (range,33-73 years).The American Orthopaedic Foot and Ankle Society (AOFAS),visual analogue scale (VAS) were applied.Hallux valgus angle (HVA) and intermetatarsal angle (IMA) were measured to investigate the changes in forefoot deformity preoperatively and postoperatively respectively.Results In 17 cases,the appearances of forefoot were improved in different degrees.The metatarsalgia disappeared completely in 29 feet.In other 3 feet,the fifth metatarsal metastatic metatarsalgia appeared and the pain was relieved after the forefoot decompression pad treatment.The distal end of hallux was excised due to necrosis.Forming joint have different degrees of anchylosis.The AOFAS improved from 46.82±6.13 preoperative to 84.25±2.87 postoperative,while the VAS,HVA,IMA decreased from 9.03±1.82,38.96°±10.13° and 15.87°±3.43° to 2.12±0.67,15.84°±5.12° and 10.35°±1.67° respectively.Conclusion The effect of the treatment for forefoot deformities caused by rheumatoid arthritis by the first metatarsophalangeal joint fusion combined with metatarsophalangeal arthroplasty from the second to the fifth toe is excellent. Key words: Arthritis, rheumatoid; Foot deformities, acquired; Metatarsophalangeal joint; Arthrodesis
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