Deformity Correction of the Knee and Leg Lengthening by the Ilizarov Method in Children with Vitamin D Resistant Rickets.
- Author:
In Ho CHOI
1
;
Jae Kwang KIM
;
Chin Youb CHUNG
;
Tae Joon CHO
Author Information
1. Department of Orthopedic Surgery, College of Medicine, Seoul National University, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
Vitamin D resistant rickets;
Ilizarov;
Level of serum phosphate;
Healing index
- MeSH:
Child*;
Congenital Abnormalities*;
Familial Hypophosphatemic Rickets*;
Fibula;
Genu Valgum;
Genu Varum;
Humans;
Ilizarov Technique*;
Knee*;
Leg*;
Recurrence;
Tibia;
Vitamin D*;
Vitamins*
- From:The Journal of the Korean Orthopaedic Association
2000;35(5):711-717
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: The purposes of this study were to evaluate the efficacy of deformity correction of the knee and leg lengthening by the Ilizarov method in patients with vitamin D resistant rickets (VDRR) . MATERIALS AND METHODS: There were 7 patients with average age of 13 years and 6 months. 5 patients had genu varum and 2, genu valgum. 3 patients underwent deformity correction alone in 4 femora, and the remaining 4 patients underwent concomitant deformity correction and lengthening in 5 femora, and 12 tibiae and fibulae. RESULTS: Angular correction averaged 22.6. and the amount of lengthening averaged 3.5 cm. The healing index (H.I) averaged 2.1 month/cm. But those who had serum phosphate level more than 2.5 mg/dL showed rapid regenerate bone healing (H.I: 1.6 month/cm) . There was a statistically negative correlation between H.I and the level of serum phosphate. CONCLUSION: Maintenance of appropriate serum phosphate level (> or = 2.5 mg/dL) is important for satisfactory regenerate bone healing in due time in patients with VDRR. The recurrence rate of deformity appears to be relatively higher in immature patients.
