The Early Outcomes Evaluation Of Containment Surgery For The Treatment Of Lateral Pillar Group-C Perthes Disease

Objective To evaluate the early results of surgical containment in the treatment of lateral pillar group-C Perthes disease.Methods Twenty-five Patients(twenty-six hips)who underwent surgical containment related to lateral pillar group-C Perthes disease in the First Affiliated Hospital of Guangxi Medical University between April 2011 and April2016 were retrospectively reviewed.The patients was divided into the younger group(?8 years old)and the elder group(> 8 years old).And the lateral centre-edge angle(LCEA),acetabular index(AI)and acetabular head index(AHI)were compared between the preoperative and the final follow-up.At the final follow-up,clinical outcome was determined with the Mckay classification,and radiographic outcome was determined with the modified Stulberg classification.Results Twenty-five Patients(twenty-six hips)were followed up for anaverage of 31 months(range 25 to 75 months).At the final follow-up,the LCEA,AI and AHI were 33.72±6.25°,9.47±4.98° and 88.22±8.17% respectively.It obtained obviously improvement,and the differences were statistically significant(P<0.05).According to Mckay classification,77% of patients had satisfactory results.According to the modified Stulberg classification,80.8% of patients had satisfactory results.The satisfactory rate of the young group(?8years old)and old group(>8 years old)was 82.4% and 77.8% respectively,but the difference was not statistically significant(P>0.05).Conclusions Surgical containment can improve the acetabular coverage,the matching relationship between the head and the acetabulum and the activity of the hip joint in lateral pillar group-C Perthes patients and the early results is effective.Active surgical containment should be performed in the early stage for the older group-C patients(>8 years old).