Neurologic Conditions Associated with Cavus Foot Deformity

Background: Pes cavus foot deformity in neuromuscular disease is thought to be related to an imbalance of musculature around the foot and ankle. The most common cause of neurogenic pes cavus is Charcot-Marie-Tooth (CMT) disease. The aim of this investigation was to objectively quantify muscle strength and imbalance using hand-held dynamometry in patients diagnosed with CMT and pes cavus, compared to healthy controls. Methods: Muscles responsible for inversion, eversion, plantarflexion, and dorsiflexion of the foot and ankle were measured in 55 subjects (11 CMT patients with a frank pes cavus, and 44 healthy controls with normal feet) using the Nicholas hand-held dynamometer (HHD). Test-retest reliability of the HHD procedure also was determined for each of the four muscle groups in the healthy controls. Results: Test-retest reliability of the HHD procedure was excellent (ICC3,1 = 0.88 to 0.95) and the measurement error was low (SEM = 0.3 to 0.7 kg). Patients with CMT were significantly weaker than normal for all foot and ankle muscle groups tested ( p <0.001). Strength ratios of inversion-to-eversion and plantarflexion-to-dorsiflexion were significantly higher in the patients with CMT and pes cavus compared to individuals with normal foot types ( p > 0.01). Conclusions: Hand-held dynamometry is an objective and reliable instrument to measure muscle strength and imbalance in patients with CMT and a pes cavus foot deformity.

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Case 113: Step by Step Approach to Cavus Foot Deformity

Limb Lengthening and Reconstruction Surgery Case Atlas ◽

10.1007/978-3-319-18023-6_357 ◽

2015 ◽

pp. 827-831

Author(s):

Reggie C. Hamdy

Keyword(s):

Foot Deformity ◽

Cavus Foot

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Cavus Foot Deformity

Expertddx: Musculoskeletal ◽

10.1016/b978-0-323-52483-4.50205-2 ◽

2018 ◽

pp. 824-825

Keyword(s):

Foot Deformity ◽

Cavus Foot

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The Subtle Cavus Foot, “the Underpronator,” a Review

Foot & Ankle International ◽

10.1177/107110070502600313 ◽

2005 ◽

Vol 26 (3) ◽

pp. 256-263 ◽

Cited By ~ 100

Author(s):

Arthur Manoli ◽

Brian Graham

Keyword(s):

Physical Examination ◽

Operative Procedures ◽

Foot Deformity ◽

Cavus Foot ◽

Selection Of

Subtle cavus foot deformity is ubiquitous, yet it continues to be commonly missed. Simple physical examination maneuvers can provide information that allows well-planned nonoperative care and selection of operative procedures to correct the underlying cause as well as presenting pathology.

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Roentgenographs Study of Cavus Foot Deformity in Friedreich Ataxia Patients: Preliminary Report

Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques ◽

10.1017/s0317167100043791 ◽

1982 ◽

Vol 9 (2) ◽

pp. 113-117 ◽

Cited By ~ 3

Author(s):

P. Allard ◽

J.P. Sirois ◽

P.S. Thiry ◽

G. Geoffroy ◽

M. Duhaime

Keyword(s):

Inclination Angle ◽

Weight Bearing ◽

Friedreich Ataxia ◽

Quantitative Description ◽

Foot Deformity ◽

First Metatarsal ◽

Metatarsal Angle ◽

Cavus Foot ◽

Three Stages

SUMMARY:The preliminary results based on a three year retrospective study in cavus foot deformity of forty-four Friedreich ataxia patients regularly seen at the Neuromuscular Disease Clinic of Sainte-Justine Hospital have been presented. An accurate “weight-bearing” foot stereoradiographic technique has been recently developed by our group. Since the follow-up period with this device is not sufficient to provide statistical information, the conventional non-weight bearing technique has been utilized in this study to enable a possible comparison between the radiographs of ambulant and non-ambulant patients. Due to the present technique, the results of this study must be interpreted with caution.For 132 pairs of radiographs, 28 parameters have been analyzed. Four of these, namely the calcaneal inclination angle, the first metatarsal inclination angle, the inferior cortex of calcaneus-first metatarsal angle and the first-fifth metatarsals angle, were of particular interest. From these parameters, a preliminary quantitative description of cavus foot deformity in Friedreich’s ataxia has been attempted. Three stages of evolution have been tentatively identified for this type of neurological disorder.

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