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  • Title: Selection criteria for surgical correction of equinovarus foot in adults with brain damage: A systematic scoping review.
    Author: Chan B, Salib M, Faggianelli F, Marque P, Cormier C, Gasq D.
    Journal: Ann Phys Rehabil Med; 2023 Mar; 66(2):101651. PubMed ID: 35240327.
    Abstract:
    OBJECTIVE: To report on preoperative outcomes that guide the choice of surgical techniques to correct equinovarus foot in adults with brain injury. METHODS: Four databases (PubMed, MEDLINE, Cochrane, PEDro) were searched according to the PRISMA guidelines. Studies were included regardless of their level of proof, with no limitation on date of publication, and their quality was assessed with the Methodological Index for Non-Randomized Studies score. RESULTS: We analysed 61 studies (n = 2,293 participants); 523 participants underwent neurotomy, 437 calf musculotendinous lengthening, and 888 tibialis anterior transfer or alternative anterior transfers with the flexor digitorum/hallucis longus (n = 249), the extensor hallucis longus (n = 102), the tibialis posterior (n = 41) and the peroneus longus (n = 41). Two studies were dedicated to osteoarticular surgeries (n = 12 participants). Ankle dorsiflexors motricity was assessed before 70% of neurotomies as compared with 29% before isolated calf lengthening studies, their strength being at least 3/5 in 33% and 50% of the studies concerned, respectively. Passive ankle dorsiflexion was assessed before surgery in 87% of neurotomy studies, with 62% of studies investigating non-retracted spastic equinovarus foot. Before anterior tendon transfer with the tibialis anterior or another muscle, passive ankle dorsiflexion was reported in only 20% and 46% of studies, respectively, and dynamic tibialis anterior activation during gait in 46% and 56%. Although voluntary recruitment of the tibialis anterior produced a better functional result, the presence/correction of varus justified its transfer in 60% of studies as compared with 30% in other transfers, which were justified by hyperactivity or voluntary recruitment of transferred muscle. CONCLUSIONS: This review highlights the poor level of preoperative assessment and the absence of formal criteria to indicate the different surgical approaches in the management of equinovarus foot. It reinforces the interest of a systematic standardized preoperative assessment such as selective motor block and dynamic electromyography to choose the most suitable surgical procedure.
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