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Biomechanical consequences of sequential plantar fascia release
G A Murphy1, S G Pneumaticos, E Kamaric
1University of Tennessee-Campbell Clinic, Department of Orthopaedic Surgery, Memphis, USA.
Foot & Ankle International
|May 30, 1998
Summary
Complete plantar fascia release significantly impacts foot biomechanics, causing severe drops in the medial and lateral columns. This surgical approach may lead to lateral midfoot pain due to strain on the calcaneocuboid joint capsule and ligament.
Area of Science:
- Orthopedic Surgery
- Biomechanics
- Foot and Ankle Anatomy
Background:
- Plantar fascia release is a common surgical treatment for persistent heel pain.
- The biomechanical consequences of plantar fascia release are not fully understood.
Purpose of the Study:
- To evaluate the biomechanical changes in the foot's medial and lateral columns and transverse arch after sequential plantar fascia sectioning.
Main Methods:
- Utilized cadaver specimens and digitized computer programs.
- Performed sequential sectioning of the plantar fascia to simulate surgical release.
- Quantified changes in the medial and lateral columns and transverse arch.
Main Results:
- Complete plantar fascia release resulted in a significant drop in both the medial and lateral foot columns.
- Partial release (medial third only) showed less pronounced effects compared to complete release.
- Observed equinus rotation of the calcaneus and a drop in the cuboid.
Conclusions:
- Complete plantar fascia release drastically alters foot column height.
- Strain on the plantar calcaneocuboid joint capsule and ligament is a probable cause of lateral midfoot pain following complete release.