Gait analysis in low lumbar myelomeningocele patients with unilateral hip dislocation or subluxation

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Gabrieli, APT
Vankoski, S. J.
Dias, L. S.
Milani, C.
Lourenco, A.
Laredo, T.
Novak, R.
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The surgical indications for the treatment of unilateral hip dislocations or subluxations in patients with low lumbar myelomeningocele remain highly debatable. This study examines the influence of unilateral hip dislocation or subluxation on the gait of these patients using three-dimensional gait analysis. Twenty patients with a diagnosis of low lumbar myelomeningocele underwent three-dimensional gait analysis. All patients were community ambulators with solid ankle-foot orthoses and crutches who presented with unilateral hip dislocation or subluxation and no scoliosis. the patients were divided in two groups. Group 1 comprised 10 patients who demonstrated either no evidence of hip flexion or adduction contractures or symmetric hip contractures. Group 2 comprised 10 patients with unilateral hip flexion and/or adduction contractures. Pelvic and hip kinematics were assessed to determine the symmetry of motion between the involved and the noninvolved side during walking. Seven patients from group 1 walked with a symmetric gait pattern; only two patients from group 2 walked with a symmetric pattern. Gait symmetry corresponded to the absence of hip contractures or bilateral symmetrical hip contractures and had no relation to the presence of hip dislocation. the authors concluded that reduction of the hip is unnecessary.
Journal of Pediatric Orthopaedics. Philadelphia: Lippincott Williams & Wilkins, v. 23, n. 3, p. 330-334, 2003.