Hammersmith Functional Motor Scale and Motor Function Measure-20 in non ambulant SMA patients

E. Mazzone, R. De Sanctis, L. Fanelli, F. Bianco, M. Main, M. van den Hauwe, M. Ash, R. de Vries, J. Fagoaga Mata, K. Schaefer, A. D’Amico, G. Colia, C. Palermo, M. Scoto, A. Mayhew, M. Eagle, L. Servais, M. Vigo, A. Febrer, R. Korinthenberg, M. Jeukens M. de Viesser, A. Totoescu, T. Voit, K. Bushby, F. Muntoni, N. Goemans, E. Bertini, M. Pane, E. Mercuri.
Neuromuscul Disord. 2014. 24:347-352.
Evaluation of the correlation between the Hammersmith Functional Motor Scale and the MFM-20 in non-ambulant SMA children and adults at baseline, and over a 12 months period. Seventy-four patients performed both measures at baseline and 49 also had an assessment 12 months later. The correlation between the two scales was 0.733. The 12 month changes ranged between [1]11 and 4 for the Hammersmith and between [1]11 and 7 for the MFM-20. The results suggest that both scales provide useful information although they appeared to work differently at the two extremes of the spectrum of abilities. Hammersmith appeared to be more suitable in strong non ambulant patients, while the MFM-20 appeared to be more sensitive in the very weak patients.

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Keywords: Outcome measures, Spinal muscular atrophy

 

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