Abstract
Objective To evaluate the effects of lateral calcaneal lengthening osteotomy for tarsoptosis in children.Methods From Jan.2002 to Dec.2006,19 cases(male 15,female 4)of tarsoptosis were treated.These were unilateralin 11 cases and bilateral in 8 cases with a total of 27 feet.The age ranged from 6 to 14 yr with an average of 9.6 yr.All feet were treated with lateral calcaneal lengthening osteotomy.Eleven of these with associated contracture of Achilles tendon received additionally Achilles tendon lengthening procedures.Results Eighteen children(26 feet)were followed-up with an average period of 16 months(8-26month).According to the preoperative and postoperative presentations and X-ray films,the bony unions of osteotomy were achieved 2 to 4 months after operation..The outcome was excellent in 8 feet,good in 15 feet,fair in 2 feet and one poor.The inclination of calcaneus was corrected from(9.7±2.1)°to(21.9±2.7)°.The lateral astragalar horizontal angle was corrected from(30.3±4.3)°to(16.9±4.0)°,while the lateral talo-metatarsal angle was corrected from(22.8±3.4)°to(2.4±3.1)°.Conclusions Lateral calcaneal lengthening osteotomy is an effective method for the treatment of tarsoptosis by alleviating the clinical symptoms and preserving movement of subtalar joint. Key words: Flatfoot; Calcaneus; Osteotomy
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