Abstract
Purpose
One of the most widespread diseases of children’s orthopaedic problems is flatfoot. If conservative therapy failed, surgical treatment would be indicated. Lateral calcaneal lengthening (LCL) and subtalar arthroereisis (SA) are two types of operations used to correct symptomatic flexible flatfoot (FFF). The purpose of this study is to compare the functional and radiographic features of these two surgical procedures.
Patients and methods
In this prospective randomized clinical trial study, we recruited 66 patients between 2018 and 2019. For clinical assessment, American Orthopedics Foot and Ankle Society (AOFAS), visual analog scale (VAS), subtalar motion, presence of medial longitudinal arch, and family satisfaction were measured. Evaluation of radiographic angles was based on AP (AP Tal-1Met) and Lat (Lat Tal-1Met) view of Talus-1st metatarsal angle (Meary’s angle) and calcaneal pitch.
Result
There was no significant difference between the two types of surgery regarding Lat Tal-1Met and AP Tal-1Met. The significantly larger angle in the LCL group was calcaneal pitch (P value < 0.001). AOFAS significantly increased from 68.71 ± 5.70 to 87.87 ± 7.14 (P value < 0.001) and from 67.28 ± 6.01 to 86.14 ± 7.56 (P value < 0.001) in LCL and SA respectively. Family satisfaction was significantly higher in the SA (8.14 ± 0.97) comparing to LCL (7.29 ± 0.86) at the latest follow-up (P value < 0.001).
Conclusion
While both groups have substantial improvement in clinical and radiographic aspects, the SA technique is less-invasive, rapid symptom relief, and has early weight-bearing capacity.
Trial registration
IRCT20180823040853N1
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This study was approved by the Ethics Committee of Isfahan University of Medical Science (IR.MUI.MED.REC.1398.415) and it was registered at irct.ir (IRCT20180823040853N1).
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Tahririan, M.A., Ramtin, S. & Taheri, P. Functional and radiographic comparison of subtalar arthroereisis and lateral calcaneal lengthening in the surgical treatment of flexible flatfoot in children. International Orthopaedics (SICOT) 45, 2291–2298 (2021). https://doi.org/10.1007/s00264-020-04899-x
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DOI: https://doi.org/10.1007/s00264-020-04899-x