Progressive Deformity of the Lower Limbs in a Patient with KID (Keratitis-Ichthyosis-Deafness) Syndrome.
作者信息
Kozhevnikov Oleg, Kralina Svetlana, Yurasova Yulia, Kenis Vladimir, Kircher Susanne Gerit, Al Kaissi Ali
机构信息
Orthopedic Children's Department, Central Research Institute of Traumatology and Orthopedics n.a. N.N.Priorov, Moscow, Russia.
Department of Hospital Pediatrics No. Two of Russian National Research Medical University, Moscow, Russia.
出版信息
Case Rep Orthop. 2020 Jul 10;2020:8747392. doi: 10.1155/2020/8747392. eCollection 2020.
PURPOSE
Progressive deformity of the lower limbs can be encountered in a long list of syndromic associations. The baseline tool in the management of such disorders is to approach to a definite diagnosis.
METHODS
We describe a 4-year-old girl who presented with the clinical phenotype and genotype of congenital erythrokeratoderma, keratosis, and sensorineural hearing loss (keratitis-ichthyosis-deafness syndrome) (KID syndrome). She manifested progressive contractures of the knees associated with talipes equinovarus of the feet. The latter deformities were the main reasons behind her severe retardation in acquiring the normal locomotor functions.
RESULTS
The analysis revealed mutations in intron 1 of the GJB2 gene of C.32G>A (p.Gly11Glu) and c.35delG in the compound heterozygous state. The presence in the genotype of the "dominant" mutation c.32G>A (p.Glu11Glu) was compatible with the clinical phenotype of KID syndrome.
CONCLUSION
Surgical interventions through the extension of the hamstring tendons have been performed successfully via the application of an external distraction apparatus, namely, Volkov- Oganesyan. The latter procedures resulted in total release of her awkward knee contractures. Eventually, the child was able to regain the physiological alignment of her lower limbs and resume walking. To the best of our knowledge, the overall management of this child could be the first in the literature.
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