Tibialis posterior transfer for foot drop due to central causes: Long-term hindfoot alignment.

Autor: Sturbois-Nachef N; Université Lille-Nord-de-France, Lille, France; Service d'orthopédie B, hôpital Salengro, CHRU de Lille, place de Verdun, 59037 Lille cedex, France. Electronic address: nadinenachef@hotmail.fr., Allart E; Université Lille-Nord-de-France, Lille, France; Service de rééducation neurologique cérébrolésion, hôpital Swynghedauw, CHRU de Lille, place de Verdun, 59037 Lille cedex, France., Grauwin MY; Université Lille-Nord-de-France, Lille, France; Service d'orthopédie B, hôpital Salengro, CHRU de Lille, place de Verdun, 59037 Lille cedex, France., Rousseaux M; Université Lille-Nord-de-France, Lille, France; Service de rééducation neurologique cérébrolésion, hôpital Swynghedauw, CHRU de Lille, place de Verdun, 59037 Lille cedex, France., Thévenon A; Université Lille-Nord-de-France, Lille, France; Service de médecine physique et réadaptation, hôpital Swynghedauw, CHRU de Lille, place de Verdun, 59037 Lille cedex, France., Fontaine C; Université Lille-Nord-de-France, Lille, France; Service d'orthopédie B, hôpital Salengro, CHRU de Lille, place de Verdun, 59037 Lille cedex, France; Laboratoire d'anatomie, faculté de médecine Henri-Warembourg, université de Lille 2, 59045 Lille cedex, France.
Jazyk: angličtina
Zdroj: Orthopaedics & traumatology, surgery & research : OTSR [Orthop Traumatol Surg Res] 2019 Feb; Vol. 105 (1), pp. 153-158. Date of Electronic Publication: 2018 Dec 24.
DOI: 10.1016/j.otsr.2018.11.013
Abstrakt: Background: Tibialis posterior transfer (TPT) is the treatment most widely used to palliate foot drop due to dorsiflexor palsy. TPT has been extensively studied in patients with peripheral neurological causes of foot drop. In contrast, data are scarce on central foot drop, in which TPT is often blamed for causing flattening of the arches. The primary objective of this study was to assess the impact on foot alignment of TPT in patients with central foot drop. The secondary objective was to determine whether TPT combined with other surgical procedures improved gait.
Hypothesis: TTP can induce flattening of the medial arch of the foot.
Patients and Methods: We retrospectively identified 13 patients managed with TPT (1 foot per patient). Mean follow-up was 65 months (range, 12-108 months). The causes were stroke (n=5), head injury (n=3), spinal cord injury (n=2), cervical spondylotic myelopathy (n=1), cerebral palsy (n=1), and a brain tumour (n=1). The clinical assessment focused chiefly on forefoot alignment and footprint parameters. The following variables were collected from weight-bearing radiographs: Djian-Annonier angle, Méary-Toméno angle, lateral arch angle, and calcaneal pitch angle in the sagittal plane; talo-metatarsal angle in the transverse plane; and rearfoot valgus angle in the coronal plane.
Results: Of the 13 feet, 6 had normal footprint parameters and 7 pes cavus. There were no cases of flatfoot. Pronation deformities and supination deformities were each found in 2 patients. Comparing the radiographic parameters between the two feet in each patient identified differences only for the lateral arch angle and calcaneal pitch angle, which indicated pes cavus on the operated side (operated side: 142.7° [range, 136°-156°], p=0.041; and 24° [range, 14°-33°], p=0.028, respectively).
Discussion: In contrast to the working hypothesis, we found no evidence of progression to valgus flatfoot after TPT transfer performed to treat central foot drop.
Level of Evidence: IV, retrospective study with no control group.
(Copyright © 2018. Published by Elsevier Masson SAS.)
Databáze: MEDLINE
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