Abstracts Posters SICOT-SOF meeting Gothenburg 2010 _2_

Poster
Topic: Arthroplasty - Hip
Abstract number: 25257
PERIACETABULAR OSTEOTOMY FOR THE TREATMENT OF COXARTHROSIS
WITH HUGE CYSTS -PROSPECTIVE CONSECUTIVE SERIES WITH A 7-YEAR
MINIMUM FOLLOW-UP PERIOD-
Etsuo CHOSA, Takero SAKAMOTO, Shinji WATANABE, Tomohisa SEKIMOTO,
Hiroaki HAMADA, Shotaro NOZAKI, Hiroshi IKEJIRI, Yoshihiro NAKAMUA, Hajime
FUKUDA
Orthopaedic Surgery, Faculty of Medicine, University of Miyazaki, Miyazaki (JAPAN)
Background: Satisfactory intermediate and long-term results of periacetabular
osteotomy for the treatment of advanced coxarthrosis have been reported. The
purpose of this study was to examine the results of periacetabular osteotomy in
patients with advanced coxarthrosis with huge cysts secondary to developmental
dysplasia of the hip.Methods: We prospectively analyzed nine hips in nine patients
with bone cysts more than 1.5 cm width who underwent a Bernese periacetabular
osteotomy with bone grafts by a single surgeon. The average age of the patients at
the time of surgery was 45.9 years, and the average duration of clinical follow-up was
10 years. The Japanese Orthopaedic Association (JOA) hip score and overall patient
satisfaction with surgery were used to assess hip function and clinical results. Plain
radiographs were used to assess the correction of the deformity and progression of
degenerative arthritis.Results: The mean pain score and the mean JOA hip scores
improved postoperatively. Radiographic analysis demonstrated consistent deformity
correction and significant improvements in the AHI and anterior acetabular head
index with no recurrence of the cystic lesion. Decreased range of motion and
progression of degenerative arthritis were found in some cases with relative joint
space narrowing and huge cyst.Conclusions: Periacetabular osteotomy for the
coxarthrosis with huge cysts improves function and may prevent delay progression of
degenerative arthritis in most patients when the indication and surgical technique are
appropriate.
64