Effects of Achilles Tendon Lengthening on Talipes Equinus in Children with Spastic Cerebral Palsy / 中国康复理论与实践

Objective To evaluate the effects of Achilles tendon lengthening on talipes equinus in children with spastic cerebral palsy. Methods From December, 2013 to June, 2014, seventeen spastic cerebral palsy children with talipes equinus (34 feet) received Achilles ten-don lengthening. Ankle dorsiflexion range of motion (ROM) and surface electromyography from tibialis anterior and medial head of gastroc-nemius were measured before and 8 to 12 months after operation, respectively. ROM of passive and active dorsiflexion, root mean square (RMS) of tibia muscle group and co-contraction ratio (CR) when standing were compared. Results The ROM of ankle passive and active dorsiflexion increased (Z>4.867, P0.05), while CR reduced (t=2.38, P<0.05). Conclusion Achilles tendon lengthening can improve the coordination of tibia muscle group to increase the ROM of ankle for chil-dren with talipes equinus after spastic cerebral palsy.

Application of gene chip joint pyrosequencing technology in the newborn genetic deafness gene mutation screening / 中国耳鼻咽喉头颈外科

OBJECTIVE To study the gene chip joint pyrosequencing technology in the newborn genetic deafness gene mutation screening, and provide a theoretical basis for the early diagnosis and prevention of genetic deafness. METHODS 2000 Neonatal EDTA umbilical cord blood was collected and genomic DNA (gDNA) was extracted. Microarray chip was used to detect four deafness gene at 9 mutation sites. And the positive result of gene chip detection was verified by pyrosequencing.RESULTS Among the GJB2 mutations, there were 1 case of 35delG mutation type, 3 cases of 176 del16 mutation type, 57 cases of 235del C mutation type, 9 cases of 299 del AT mutation type, 6 cases of GJB3 gene 538C>T mutation type. There were 5 cases of 1555A>G mutations and 1 case of 1494C>T mutations in mitochondrial 12S rRNA. There were 6 cases of 2168A>G mutation type and 23 cases of IVS7-2A>G mutations in SLC26A4. 103 cases of newborns carry the mutated gene in 2,000, the gene mutation rate is 5.15%. CONCLUSION All the four genes mutation at nine mutation sites are found in newborns with family history of non-hereditary deafness, and GJB2 gene mutation is common. The screening of genetic deafness in newborns is very important for early diagnosis and prevention of hereditary hearing loss. In particular, the diagnosis of mitochondrial 12S rRNA gene mutation can prevent the occurrence of deafness caused by drug use, for the genetic mutation of these carriers' health is of great significance.

Surface Electromyography of Calf Muscle in Children with Growing Pains / 中国康复理论与实践

@#Objective To compare the differences of electrical activity in calf muscle of children with growing pains from normal children when standing and heel raising. Methods 32 children with growing pains and foot pronation were as growing pains group, and 32 normal children as control group. All the children were measure with surface electromyography (sEMG) of tibialis anterior, peroneus longus, medial gastrocnemius and tibialis posterior when standing and heel raising. Results The root mean square (RMS) of peroneus longus increased significantly in growing pains group when standing (P<0.01). The RMS decreased significantly in medial gastrocnemius (P<0.05) and increased significantly in tibialis posterior (P<0.01) when heel raising. Conclusion The characteristics of electrical activity in calf muscle is difference from the normal in the growing pains children with foot pronation during standing and heel raising.

Surface Electromyography of Calf Muscle in Children with Growing Pains / 中国康复理论与实践

Objective To compare the differences of electrical activity in calf muscle of children with growing pains from normal chil-dren when standing and heel raising. Methods 32 children with growing pains and foot pronation were as growing pains group, and 32 nor-mal children as control group. All the children were measure with surface electromyography (sEMG) of tibialis anterior, peroneus longus, medial gastrocnemius and tibialis posterior when standing and heel raising. Results The root mean square (RMS) of peroneus longus in-creased significantly in growing pains group when standing (P<0.01). The RMS decreased significantly in medial gastrocnemius (P<0.05) and increased significantly in tibialis posterior (P<0.01) when heel raising. Conclusion The characteristics of electrical activity in calf mus-cle is difference from the normal in the growing pains children with foot pronation during standing and heel raising.