Complications after periacetabular osteotomy

Aim. To study the frequency and structure of complications after periacetabular osteotomy in patients with hip dysplasia.

Methods. Complications that arose after the Ganz periacetabular osteotomy, based on observation of 71 patients (83 operated joints): 58 women and 13 men, were analyzed. The average follow-up duration was 8 years, the mean age - 23 years (range 13 to 44 years). Complications after surgery were divided into two groups: minor and major. Functional state of the hip joint was evaluated by the Harris Hip Score (HHS) before and after surgery.

Results. In 5 patients dysesthesia of external femoral nerve, in 1 - of sciatic nerve, was revealed, ossification grade 1-2 (according to Brucker) was found in 5 patients, grade 3-4 - in 2, ischial bone pseudarthrosis was determined in 2 patients, the ilium fracture - in 3, superficial abscess - in 2, screw penetration into the joint - in 2, femoral head subluxation - in 1, symptomatic screws - in 5 patients. In 71 adult patients (83 joints) with hip dysplasia and arthrosis after Ganz osteotomy, in 17 (20.4%) cases minor complications, in 11 (13.25%) - major complications were registered. In 66 patients out of 71 the joint preservation was achieved.

Conclusion. Ganz osteotomy performed according to indications is effective and allows joint preservation in the majority of cases, however, the surgical complexity and the relatively high rate of complications require sufficient qualification and experience of the physician.