Use of Gait Profile Score and Gait Variable Score to quantify patient improvement immediately following neuro-orthopedic surgery in patients with cerebral palsy – A prospective cohort study
G. Basini , D. Mazzoli , P. Prati , P. Zerbinati , M. Galletti , C. Rambelli , F. Mascioli , M.C. Bò , A. Merlo
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引用次数: 0
Abstract
Background
The Gait Profile Score (GPS) and the Gait Variable Score (GVS) are summary measures used to assess the long-term effects of neuro-orthopedic surgery (NOS) in children with cerebral palsy (cwCP).
Research question
What are the immediate changes after NOS as assessed by GPS and GVS, and how does GPS variation (ΔGPS) compare to the clinical opinion of the NOS outcome?
Methods
Prospective single-arm cohort study. CwCP were assessed before NOS and after the first month of weight-bearing. Popliteal angle, ankle passive dorsiflexion (pDF), and spasticity were collected at the bedside. During walking, pain was assessed using NPRS, and speed was obtained from gait analysis data, as well as GPS and GVS. Longitudinal variations were analyzed using the Wilcoxon test. Children were classified as Improved (I), Stable (S), or Worsened (W) according to ΔGPS and the cut-off threshold recommended in literature. Two clinicians independently classified patients either as I, S, or W based on surgical outcome. Agreement between these two classifications was analyzed using Cohen’s k.
Results
Twenty cwCP, 11.4 (3.4) years, were included. At the follow-up: the popliteal angle was reduced by 20° (p=0.015); pDF increased by 10° (p<0.001), and triceps surae spasticity decreased (p=0.008). Pain decreased in four children. GPS decreased from 12.7 (range 8.1–27.7) to 11.8 (7.6–17.6) (ES=0.514, p=0.046), despite a decrease in gait speed (p<0.001). GVS better highlighted the effect of NOS after single-level surgery. Clinically, 18/1/1 children were classified I/S/W. Based on ΔGPS, 9/8/3 children were classified I/S/W. Such disagreement (k=0.119, p=0.227) was mainly due to the different focus of the two assessments.
Significance
Following NOS, immediate improvements in walking kinematics were observed.
期刊介绍:
Gait & Posture is a vehicle for the publication of up-to-date basic and clinical research on all aspects of locomotion and balance.
The topics covered include: Techniques for the measurement of gait and posture, and the standardization of results presentation; Studies of normal and pathological gait; Treatment of gait and postural abnormalities; Biomechanical and theoretical approaches to gait and posture; Mathematical models of joint and muscle mechanics; Neurological and musculoskeletal function in gait and posture; The evolution of upright posture and bipedal locomotion; Adaptations of carrying loads, walking on uneven surfaces, climbing stairs etc; spinal biomechanics only if they are directly related to gait and/or posture and are of general interest to our readers; The effect of aging and development on gait and posture; Psychological and cultural aspects of gait; Patient education.