ABSTRACT
We developed an optoelectronic motion analysis protocol to measure anatomical and functional ranges of wrist motion in Colles'-type and scaphoid-type splints and casts. The protocol was used to study the restriction of wrist motion in casts and splints in ten healthy volunteers. Scaphoid-type casts were no more restrictive to wrist motion than Colles'-type casts, but casts were significantly more restrictive than removable splints. Removable splints were more restrictive than no immobilization. Results suggest there is no benefit in using scaphoid-type casts rather than Colles'-type casts to reduce wrist motion.
Subject(s)
Casts, Surgical , Fractures, Bone/therapy , Pronation/physiology , Splints , Supination/physiology , Wrist Joint/physiology , Adolescent , Adult , Healthy Volunteers , Humans , Middle Aged , Optical Devices , Optics and Photonics , Scaphoid Bone/injuries , Young AdultABSTRACT
Outcomes of nonoperative treatment for developmental dysplasia of the hip were compared between two centres. Eighty children in Centre A underwent staged weaning of the Pavlik harness once three consecutive weekly ultrasounds showed Graf Grade I hips, whereas in 48 children in Centre B, the harness was removed immediately. No statistically significant difference was found in the rate of reintervention (repeat harness treatment, closed or open reduction), avascular necrosis or acetabular index between the two methods, although there was a nonsignificant trend towards higher reintervention rate and lower avascular necrosis rate with immediate harness removal. Age at start of treatment significantly impacted upon initial harness success, reinterventions and avascular necrosis.