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Background: Delayed diagnosis and improper treated cases of developmental dysplasia of the hip (DDH) in presence of excessive anteversion of femoral head may lead to undesirable consequences including more extensive interventions with severe complications and functional disability. This study aimed to compare the clinical, radiological and complication outcomes of simultaneously versus two stage surgical procedures (open reduction and proximal femoral derotation osteotomy) in the treatment of DDH with excessive femoral anteversion among sample of Iraqi children aged less than three years old.
Methods: A total of 26 DDH cases were treated in two groups (GI, GII) at Al-Wasity Hospital (Baghdad, Iraq) from January 2014 to March 2015. GI (15 hips) in 13 patients subjected to simultaneous open reduction (with/without salter osteotomy ) and proximal femoral derotation osteotomy. GII (18 hips) in 13 patients operated in two stages procedure; open reduction (with/without salter osteotomy) followed by proximal femoral derotation osteotomy 6 weeks later.
Results: At the time of operation, the average age was 21.79±3.51months (range: 18-30). The mean follow-up period was 10.36±1.45 months (range: 8 -12). Statistically, the post-operative clinical, radiological and complication findings were not significantly different between the two groups. However, in post-operative clinical assessment (McKay's criteria), the satisfy results (excellent and good) were 93% in GI and 88% in GII respectively. Moreover, in radiological assessment (Severins grading), the satisfy results (excellent and good) were 94% in GI and 83% in GII respectively. Two cases of re-dislocation and avascular necrosis(AVN) were reported in GII.
Conclusion: When the clinical and radiological findings of one and two stage open reduction and proximal femoral derotation osteotomy procedures are similar, the one-stage is more likely to overcome the two-stage in term of minimizing the cost, length of stay and the risk of AVN of femoral head.
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