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Novita Research Report January 1999 - Novita Children's Services

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What is the evidence for the use of the gross motor function measure (GMFM-88)<br />

as a functional outcome measure for children with cerebral palsy<br />

Susan Gibson<br />

Senior <strong>Research</strong><br />

Physiotherapist<br />

Physiotherapy<br />

Staff<br />

Objective<br />

The purpose of this critical appraisal of the literature was to (1) establish whether the GMFM-88 a reliable and valid<br />

tool to detect change in the gross motor skills of children with CP, and (2) establish its clinical usefulness and its<br />

sensitivity to detect change<br />

Method<br />

A systematic search was conducted using multiple databases through South Australian Health <strong>Services</strong> Libraries<br />

Consortium database (SALUS). Databases searched: Medline, CINAHL, AMED, Current Contents, IDEAL, Science<br />

Direct, Cochrane Library and Sports Discus. Key words: cerebral palsy, Gross Motor Function Measure, GMFM,<br />

GMFM-88, Gross Motor Performance Measure, GMPM, Gross Motor Functional Classification Scale, GMFCS,<br />

GMFM-66. Crombie Appraisal Tools, modified by the Clinical <strong>Research</strong> Department at <strong>Novita</strong>, were used to<br />

critically appraise the literature. All studies and articles located were acceptable evidence.<br />

Results<br />

A total of 50 studies were included. 12 articles pertaining to Question 1 (reliability and validity) were appraised:<br />

3 reviews, 7 observational studied and 2 experimental studies. For Question 2 (clinical usefulness) 38 articles were<br />

appraised: 4 reviews, 4 case studies, 15 observational studies and 15 experimental studies. The outcomes of the<br />

critical appraisal of the literature was that:<br />

• The GMFM-88 is a reliable and valid measure used to evaluate change in motor function in children with CP, it is<br />

not a very sensitive tool for the higher functioning child with a mild motor impairment, and a ceiling effect can be<br />

reached making it difficult to measure improvements in these children;<br />

• The GMFM-88 has been validated for use with children with Downs Syndrome and Osteogenesis Imperfecta; and<br />

• The GMFM-88 has been used to establish baseline profiles and detect change in gross motor function after<br />

interventions such as Selective Dorsal Rhizotomies, Botulinum Toxin Type A injections, Hyperbaric Oxygen<br />

Therapy and to demonstrate a treatment effect in the research into efficacy of intensive physiotherapy<br />

intervention and muscle strengthening programs for children with CP.<br />

46<br />

Implications<br />

This critical appraisal of the literature supports the use of the GMFM-88 as a Functional Outcomes Measurement<br />

tool for children with cerebral palsy. The physiotherapy staff at <strong>Novita</strong> continues to use the GMFM-88 as a clinical<br />

outcome measurement. The Physiotherapy Department also now uses the Gross Motor Functional Classification<br />

System, and have recently embarked on a training program for all physiotherapists at <strong>Novita</strong> in the use of the<br />

GMFM-66 and the Gross Motor Ability Estimator.<br />

Project completed in 2001<br />

<strong>Novita</strong> Children’s <strong>Services</strong> Incorporated • <strong>Research</strong> <strong>Report</strong> <strong>January</strong> <strong>1999</strong> – June 2004

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