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Gait analysis and muscle testing in children with surgically treated clubfeet
Eleven chi!dreo wno bad undergone onilaterd cliabfoot releases for ldiopzthic clubfeet were asssssed for gait ckaractetistrcs and muscle ~?rength at an average of 9 6 years after surgery Range of motion end the presence ofresidual deformity were determined clinicaily. Xinemstx and kinetic data we:e ml&ted using tbe VICON system and conventional marker placement Slecnomyogrsphx &;a were obtained with surface ele:trodes over the knee and mkle nwa:lt:s. Kip, koeo. zxd ankfe muscle strength were assessed usmg the Cybex machine.
Chical Dorsdkwm
assessment of range of motion revealed stiffness in ail operated feet. of the a&tie weraeed 45 oer cent less on the side of soreelv cornoared to the
Cadef~co p&-aneters were w&o normal hmits for adult @it Kinematics revealed excessive ankle dorsiflcx~on in four children, and decreased dorsiflexion in three chddren. The first rocker w!aa disturbed m iour fee:. Seven ofe!even children lacked full hip extension during @it. Six children bed rncreased genu valgom. Seven children had an mtemal Coot progression mgle on the side of the clubfoot compe+ -u to their nonoperated side consistant with persismt nediisi spin Kane:ic data reva&d decreases m the ankle plaota&xion moment and total ankle power in rhs involved limb ei te;rr.insl stance in sever! of eleven children Average pl&ntarflcxios pow? fat the: entire group was reduced by 20 per cent on the side of surgery. The diffwme in armk!s power between operated and nonoperated limbs was statistically significanr (p=O.O:). There was B tendewy toward abnn~ai absorption of power at the ankle prior to toe of? on the involved side. Work wes derived from the ankle power curves, uld was aignificently less on the operated side tbar, the control foot (p=O.O09).
Chical Dorsdkwm
assessment of range of motion revealed stiffness in ail operated feet. of the a&tie weraeed 45 oer cent less on the side of soreelv cornoared to the
Cadef~co p&-aneters were w&o normal hmits for adult @it Kinematics revealed excessive ankle dorsiflcx~on in four children, and decreased dorsiflexion in three chddren. The first rocker w!aa disturbed m iour fee:. Seven ofe!even children lacked full hip extension during @it. Six children bed rncreased genu valgom. Seven children had an mtemal Coot progression mgle on the side of the clubfoot compe+ -u to their nonoperated side consistant with persismt nediisi spin Kane:ic data reva&d decreases m the ankle plaota&xion moment and total ankle power in rhs involved limb ei te;rr.insl stance in sever! of eleven children Average pl&ntarflcxios pow? fat the: entire group was reduced by 20 per cent on the side of surgery. The diffwme in armk!s power between operated and nonoperated limbs was statistically significanr (p=O.O:). There was B tendewy toward abnn~ai absorption of power at the ankle prior to toe of? on the involved side. Work wes derived from the ankle power curves, uld was aignificently less on the operated side tbar, the control foot (p=O.O09).