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Abstract
Purpose
The aim of the current study is to report on the clinical and radiographic results after calcaneo-stop procedure in Korean children with symptomatic flexible flatfoot.
Materials and Methods
Twenty-two children suffering pain along the medial aspect of midfoot with flexible flatfoot whose symptoms did not improve with conservative measures and therefore underwent calcaneo-stop procedure were identified retrospectively. Clinically, American Orthopaedic Foot and Ankle Society (AOFAS) ankle-hindfoot scale and visual analogue scale (VAS) were evaluated. Radiographically, standing anteroposterior and lateral radiographs of the foot and Saltzman's alignment views were taken and talonavicular coverage angle, lateral talo-first metatarsal angle, and hindfoot alignment angles were measured and analyzed.
Results
Clinically, AOFAS ankle-hindfoot scale improved from 70.3±5.6 to 97.3±2.5 and VAS improved from 6.4±1.6 to 0.2±0.4. Radiographically, talonavicular coverage angle improved from 28.3o±12.3o to 10.9o±8.1o, lateral talo-first metatarsal angle improved from –19.3o±9.0o to –2.4o±8.1o, and hindfoot alignment angle improved from valgus 11.9o±10.0o to 3.5o±4.3o at minimum 2-year follow-up. No complications occurred postoperatively.
References
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Figure 1.
(A) Preoperative weightbearing anteroposterior radiograph of 11-year-old boy shows abnormal talonavicular coverage angle of 28o. (B) Preoperative weightbearing lateral radiograph shows decreased lateral talo-first metatarsal angle of ―26o. (C) Preoperative Saltzman's alignment view shows heel alignment angle of valgus 25o.
Figure 2.
Calcaneo-stop procedure was performed and postoperative radiograph was taken at 2-year follow-up. (A) weightbearing anteroposterior radiograph shows normal talonavicular coverage angle of 7o. (B) weightbearing lateral radiograph shows improved lateral talo-first metatarsal angle of 1o. (C) Saltzman's alignment view shows heel alignment angle of valgus 4o.
Table 1.
Radiographic and Clinical Results of Children with Calcaneo-Stop Procedure
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