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Lateral Column Lengthening Effect on Total Subtalar Joint Range of Motion: A Pilot Study
Patrick DeHeer1, Tyler Sten2, William Wolfe3
1Ascension St. Vincent Hospital, Indianapolis, IN 46260, USA.
Journal of the American Podiatric Medical Association
|July 24, 2026
Summary
Lateral column lengthening (LCL) significantly reduces subtalar joint range of motion (ROM) by nearly half. This surgical impact on flexible flatfoot reconstruction requires consideration for patient management and future research.
Area of Science:
- Orthopedic surgery
- Foot and ankle biomechanics
Background:
- Lateral column lengthening (LCL) calcaneal osteotomy is a standard procedure for flexible flatfoot reconstruction.
- The impact of LCL on subtalar joint (STJ) range of motion (ROM) remains incompletely understood.
Purpose of the Study:
- To objectively quantify the reduction in STJ ROM following LCL calcaneal osteotomy.
- To provide in vivo data on the biomechanical effects of LCL.
Main Methods:
- Retrospective cohort study of 15 patients (20 feet) undergoing LCL.
- Preoperative and postoperative STJ ROM measurements were collected and compared.
- Mean follow-up was 12 weeks.
Main Results:
- Mean preoperative STJ ROM was 39.65 degrees; mean postoperative ROM was 19.17 degrees.
- A statistically significant decrease of 20.48 degrees (48% reduction) in STJ ROM was observed (p < 0.001).
- This study presents the first in vivo objective measurement of STJ ROM reduction post-LCL.
Conclusions:
- LCL calcaneal osteotomy substantially decreases STJ ROM.
- Findings necessitate consideration in patient management and outcome evaluation after LCL.
- Further research is needed on functional consequences and long-term effects of reduced STJ ROM.
