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Three-dimensional Reconstruction of Magnetic Resonance Images of a Displaced Flexor Hallucis Longus Tendon in Hallux Valgus

Antal P. Sanders, MD, PhD ^*, René E. Weijers, MD , Christiaan J. Snijders, PhD  and Lew C. Schon, MD 

^* Department of Rehabilitation Medicine, University Hospital Maastricht, Maastricht, the Netherlands.
Department of Radiology, University Hospital Maastricht, Maastricht, the Netherlands.
Department of Biomedical Physics and Technology, University Medical Center Rotterdam, Rotterdam, the Netherlands.
Department of Orthopedics, Union Memorial Hospital, Baltimore, MD.

Corresponding author: Antal P. Sanders, MD, PhD, Department of Rehabilitation Medicine, University Hospital Maastricht, P. Debyelaan 25, Maastricht 6229 HX, the Netherlands.

Abstract

By using three-dimensional magnetic resonance image reconstruction, lateral displacement of the flexor hallucis longus tendon and sesamoid bones was made clearly visible in a living patient. This finding supports a biomechanical model related to disturbed muscle balance at the first metatarsophalangeal joint, which could play an important role in the pathogenesis of hallux valgus and metatarsus primus varus. (J Am Podiatr Med Assoc 95(4): 401–404, 2005)