[P2-61] Relationship between stature and tibial length for adolescents and adults with moderate-to-severe cerebral palsy
[Objective]
We previously reported the equation for estimating stature, based on tibial length, for children with moderate-to-severe cerebral palsy (CP). The objective of this study is to derive similar equations for adolescents and adults with moderate-to-severe CP.
[Methods]
The participants included 28 adolescents (13–18-years-old) with moderate-to-severe CP (mean age, 15.1 ± 1.4 years) and 40 adults (19–48-years-old) with moderate-to-severe CP (mean age, 32.0 ± 7.8 years). Sixty-eight percent of the participants had a gross motor function classification system level of V, 88% had hip or knee joint contractures, 72% had scoliosis. The stature and the tibial length of all participants were measured. Regression equations to estimate stature, based on tibial length, were determined for both adolescents group and adults group. Moreover, these regression equations were compared using multiple regression analysis.
[Results]
The regression equations for estimating stature, based on tibial length, were stature = tibial length × 2.9 + 47.5 [cm], R2 = 0.66 (adolescents with CP), and stature = tibial length × 4.2 + 14.2 [cm], R2 = 0.46 (adults with CP). These regression equations were significantly different.
[Conclusions]
The stature of persons with moderate-to-severe CP could be estimated from their tibial lengths. However, in the adults group of participants, the regression equations’ R2 was inferior to that of adolescents group. The difference was assumed to be caused by the progression of joint contractures or scoliosis. The tibial length may be a proxy for stature in the growth and nutritional assessment of persons with moderate-to-severe CP.
We previously reported the equation for estimating stature, based on tibial length, for children with moderate-to-severe cerebral palsy (CP). The objective of this study is to derive similar equations for adolescents and adults with moderate-to-severe CP.
[Methods]
The participants included 28 adolescents (13–18-years-old) with moderate-to-severe CP (mean age, 15.1 ± 1.4 years) and 40 adults (19–48-years-old) with moderate-to-severe CP (mean age, 32.0 ± 7.8 years). Sixty-eight percent of the participants had a gross motor function classification system level of V, 88% had hip or knee joint contractures, 72% had scoliosis. The stature and the tibial length of all participants were measured. Regression equations to estimate stature, based on tibial length, were determined for both adolescents group and adults group. Moreover, these regression equations were compared using multiple regression analysis.
[Results]
The regression equations for estimating stature, based on tibial length, were stature = tibial length × 2.9 + 47.5 [cm], R2 = 0.66 (adolescents with CP), and stature = tibial length × 4.2 + 14.2 [cm], R2 = 0.46 (adults with CP). These regression equations were significantly different.
[Conclusions]
The stature of persons with moderate-to-severe CP could be estimated from their tibial lengths. However, in the adults group of participants, the regression equations’ R2 was inferior to that of adolescents group. The difference was assumed to be caused by the progression of joint contractures or scoliosis. The tibial length may be a proxy for stature in the growth and nutritional assessment of persons with moderate-to-severe CP.