The effect of plantar fasci release on strain in the spring and long plantar ligaments

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Crary, Jay L.; Hollis, J. Marcus; Manoli, II, Arthur

The effect of plantar fasci release on strain in the spring and long plantar ligaments

Foot Ankle Int. March 2003;24(3):245-250

©2003 American Orthopaedic Foot & Ankle Society, Inc.

Abstract

The effect of plantar fascia release on strain in the spring and long plantar ligaments was investigated in 11 cadaveric feet. Strain gauges were placed in the spring and long plantar ligaments of each specimen, and cyclic axial loading was applied until reproducible hysteresis curves were observed in the ligaments before and after plantar fascia release. After release of the plantar fascia, the average strain observed in the spring ligaments at 920N of axial load increased by 52% (p<.001) and in the long plantar ligaments by 94% (p=.04). Longer resting lengths of the ligaments were also observed. Release of the plantar fascia significantly changed force distributions in the foot which may explain the development of deformities and symptoms observed clinically following this procedure.
Links

DOI: 10.1177/107110070302400308

PubMed: 12793488

WoS: 000183135700008

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Cited By (11)

Year	Entry
2004	Cheung JT-M, Zhang M, An K-N. Effects of plantar fascia stiffness on the biomechanical responses of the ankle–foot complex. Clin Biomech (Bristol, Avon). October 2004;19(8):839-846.
2006	Cheung JT-M, Zhang M, An K-N. Effect of Achilles tendon loading on plantar fascia tension in the standing foot. Clin Biomech (Bristol, Avon). February 2006;21(2):194-203.
2007	Wu L. Nonlinear finite element analysis for musculoskeletal biomechanics of medial and lateral plantar longitudinal arch of Virtual Chinese Human after plantar ligamentous structure failures. Clin Biomech (Bristol, Avon). 2007;22(2):221-229.
2006	Cheung JT-M, An K-N, Zhang M. Consequences of partial and total plantar fascia release: a finite element study. Foot Ankle Int. 2006;27(2):125-132.
2010	Iaquinto JM, Wayne JS. Computational model of the lower leg and foot/ankle complex: application to arch stability. J Biomech Eng. February 2010;132(2):021009.
2023	Malakoutikhah H, Madenci E, Latt LD. A computational model of force within the ligaments and tendons in progressive collapsing foot deformity. J Orthop Res. February 2023;41(2):396-406.
2005	Cheung TMJ. Development of Knowledge-Based Criteria for Designing Foot Orthoses [PhD thesis]. Hong Kong Polytechnic University; October 2005.
2021	Mettler JH. Strain Estimations of the Plantar Fascia and Other Ligaments of the Foot: Implications for Plantar Fasciitis [PhD thesis]. Iowa State University; 2021.
2008	Lewis GS. Computational Modeling of the Mechanics of Flatfoot Deformity and Its Surgical Corrections [PhD thesis]. State College, PA: Pennsylvania State University; December 2008.
2022	Eriksen Daehlin T. The Role of the Ankle Plantar Flexors, Extrinsic Foot Muscles, and Intrinsic Foot Muscles in Performing Propulsive Tasks [PhD thesis]. Edmonton, AB: University of Alberta; 2022.
2010	Iaquinto JM. The Design and Validation of a Novel Computational Simulation of the Leg for the Investigation of Injury, Disease, and Surgical Treatment [PhD thesis]. Richmond, VA: Virginia Commonwealth University; May 2010.