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Compensatory Function of the Subtalar Joint for Lower Extremity Malalignment.
Kensei Yoshimoto1, Masahiko Noguchi1, Akifumi Yamada1
1Orthopaedic Foot and Ankle Center, Shiseikai Daini Hospital, 5-19-1 Kamisoshigaya, Setagaya-ku, Tokyo, 157-8550, Japan.
Advances in Orthopedics
|March 29, 2019
Summary
The subtalar joint compensates for knee and ankle deformities. Valgus alignment improved after surgery for varus knee deformities, but its response to other deformities requires further study.
Area of Science:
- Orthopedics
- Biomechanics
- Lower Extremity Alignment
Background:
- Evaluating lower extremity alignment requires assessing the subtalar joint and hip-knee-ankle alignment.
- Compensatory changes in subtalar joint alignment are crucial for understanding lower extremity deformities.
Purpose of the Study:
- To review compensatory changes in subtalar joint alignment in response to knee and ankle deformities.
- To analyze existing research on subtalar joint compensation for lower extremity malalignment.
Main Methods:
- Literature review of previous research on lower extremity alignment and subtalar joint compensation.
- Analysis of studies investigating knee and ankle deformities and their effect on subtalar joint alignment.
Main Results:
- Subtalar joint alignment demonstrated compensatory valgus in patients with varus knee and ankle deformities.
- Subtalar joint valgus alignment improved post-total knee arthroplasty or high tibial osteotomy for varus knee deformities.
- Compensatory varus in the subtalar joint for valgus knee/ankle deformities remains uncertain.
Conclusions:
- Subtalar joint plays a compensatory role in lower extremity alignment, particularly with varus deformities.
- Surgical correction of varus knee deformities can improve subtalar joint alignment.
- Further research is needed to understand subtalar joint compensation for valgus knee and ankle deformities.
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