Effect of thoracolumbosacral orthoses on reachable workspace volumes in children with spinal cord injury.
OBJECTIVE
Wheelchair users often use trunk motion to facilitate or augment their upper extremity reach. Children with spinal cord injury (SCI) are often prescribed thoracic lumbar sacral orthoses (TLSO) to delay or prevent spinal curve progression. The impact of wearing a TLSO while reaching has not been studied. Therefore, the purpose of this study was to see the quantitative effect of the TLSO on reachable workspace volumes and reach of children with SCI.


METHODS
Twenty children with SCI aged 5 to 18 years participated in the present study. Three-dimensional upper extremity motion analysis was used to assess the reachable workspace patterns of children reaching for targets at varying heights. Volumes in and out of TLSO and kinematic ranges of reach were statistically analyzed using paired Student's t tests with a P value set at 0.05.


RESULTS
Reachable workspace volumes were significantly greater for the non-TLSO condition compared with the TLSO condition (112,836 vs. 80,711 cm3; P = 0.0002; a decrement of 28%). Anterior posterior and medial lateral ranges of reach were statistically greater in the non-TLSO condition (P = 0.002, P = 0.01). Nondominant hand medial lateral reaches were statistically greater in the non-TLSO condition (P = 0.003). Dominant hand anterior posterior reaches were greater in the non-TLSO condition (P = 0.009).


CONCLUSIONS
Results suggest the reachable workspace of children with SCI is lessened with the use of a TLSO. This may be an important negative factor for brace compliance in children with SCI. The TLSO interferes with their ability to reach; therefore, children may prefer not to wear the orthosis.
Sison-Williamson
Mitell
M
Motion Analysis Laboratory, Shriners Hospitals for Children, 2425 Stockton Blvd, Sacramento, CA 95817, USA. msison@shrinenet.org
Bagley
Anita
A
Hongo
Adrian
A
Vogel
Lawrence C
LC
Mulcahey
Mary Jane
MJ
Betz
Randal R
RR
McDonald
Craig M
CM
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D009989:Orthotic Devices; D013119:Spinal Cord Injuries / Q000503:physiopathology* / Q000534:rehabilitation*; D013904:Thoracic Vertebrae / Q000473:pathology / Q000503:physiopathology; D013996:Time and Motion Studies; D014910:Wheelchairs