Bone Abstracts

Objectives: Evaluate nutritional status influence upon bone mineral density (BMD) of children with CP diagnosis after reconstructive hip joint surgery.

Methods: Eighteen children with CP diagnosis with III-V level Gross Motor Function Classification System took part in the research. All patients received reconstructive medical treatment in child traumatic-orthopedic unit of health center after reconstructive hip joint surgery. Anthropometric measurement carried out using WHO Anthro, WHO AnthroPlus (2009) soft ware. Following parameters were taken into account: weight/age, weight/height, height/age, body mass index (BMI)/age. Dual energy X-ray absortiometry of L-1-L4 vertebrae of lumbar spine in Spine AP and Whole body was treated on EXCELL XR-46 apparatus (‘Norland’, USA) with estimation of Z-criterion according to WHO recommendations.

Results: The average age of children 8.8±2.6 years old. Eight girls and ten boys. Anthropometric measurement of researched group of patients: average body weight 21.47±6.9 kg, average body height 124.5±15.6 sm., average body mass index 13.7±2.4. Totally nutritional deficiency was detected in 15 (83.3%) surveyed children: mild malnutrition – 5 (27.7%), moderate — 3 (16.7%), severe — 7 (38.9%). According to the results of Whole body dual energy X-ray absortiometry 15 patients (83,3%) showed a decrease in bone mass compared with the age norm (Z-criterion is less than -2.0 S.D.), the average value is 3.5±1.04. At the same time, the average value of Z-criterion, BMD L1-L4 vertebrae were within the age norm and made −0.91±0.1 a positive correlation between the Z-criterion of BMD at the Whole body and BMI (r=0.622; P=0.02).

Conclusion: A significant decrease in BMD is observed in children with severe cerebral palsy (GMFCS III-V), which is aggravated by malnutrition. Thus, the determination of BMD and nutritional support of these patients are required within the preoperative preparation to reduce the risk extravertebral fractures.

Disclosure: The authors declared no competing interests.