Corrective Osteotomy in cubitus varus deformity in children: A prospective study
Background and Aim: Cubitus varus deformity is the most common late complication after supracondylar fracture of the distal humerus in children, incidence varying from 4% to 58%. The present study was done to evaluate the results of dome osteotomy.
Material and Methods: This prospective study was conducted in a tertiary care hospital over 16 months. In all patients humerus-elbow wrist angle was measured on both sides and the correction needed was calculated. The lateral condyle prominence index (LCPI) was calculated by anteroposterior view radiographs of the deformed and the normal elbow in full extension by (AB-BC)/AC. Dome osteotomy with para triceps approach was used. Pre and post-operative carrying angle of elbow, range of motion and lateral prominence indices were compared.
Results: The age of patients ranged from 3 to 15 years with a mean age of 8.47±3.14 years. Preoperative carrying angle of normal side ranged from 80 to 140 and that of effected side ranged from -23 to -13 and the difference was statistically significant (p<0.05). LCPI ranged from -8.4 to 5.9%. The majority of cases had LCPI >2.7%. As compared to, an improvement in carrying angle at defect side was observed to be 28.41±2.15 which was significant (p<0.05). At baseline mean LCPI was 0.39±3.87% which changed to -0.86±3.47%, the mean change of this was significant (p=0.01). baseline
Conclusion: Dome osteotomy is a relatively technically demanding technique for correction of cubitus varus deformity but with a better functional outcome without being associated with lateral condyle prominence.
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