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· DOS Abstracts
The effect of periacetabular osteotomy (PAO) on
the clinical outcome in patients with retroverted
acetabulum - a prospective cohort study
Victoria Schmiegelow, Bjarke Løvbjerg Viberg, Ole Ovesen, Søren Overgaard
Orthopaedic Surgery and Traumatology, Odense University Hospital, Denmark
Background:
A retroverted acetabulum can cause pincer impingement with
deep groin pain, reduced quality of life and activity level. Retroverted acetabu-
lum is over time to be associated with osteoarthritis (OA). Few studies have
evaluated the effect of PAO and reorientation of the retroverted acetabulum
and this is the first Danish cohort.
Purpose / Aim of Study:
was to investigate the effect of PAO in patients with
retroverted acetabulum and pincer impingement on pain, clinical outcome and
quality of life.
Materials andMethods:
Inclusion criterias were daily pain for at least 6months,
positive impingement test and verified retroverted acetabulum on radiographs
and CT- scan. Patients had no OA. Exclusion criterias were previous operation in
the hip for any reason. The patients were operated from December 2004 - May
2013 with at least 1 year of follow-up. They were scored with HHS, EQ5D-3L
and VRS (pain on verbal rating scale) pre- and postoperatively. In addition, they
were evaluated on 3 Anchor questions regarding their hip.
Findings / Results:
106 patients (83F) with 120 PAO with a median age of
21.4 years (IQR 18.1-26.8) were included. The median follow-up time was
1.1 year (IQR 1-1.6). The median HHS (IQR) improved from 68 (61-72) to 94
(91- 96). Median (IQR) VRS improved from 8 (6-9) to 0 (0-2). Median (IQR)
EQ5D- 3L improved from 0.72 (0.66-0.77) to 0.824 (0.72-1). Compared to
preoperative HHS, VRS and EQ5D-3L all improved significantly (p< 0.0001,
Wilcoxon matched sign rank test). 78- 80 % reported good to excellent health
and result of PAO and a better hip function than prior to surgery.
Conclusions:
PAO for a patient with pincer impingement and retroverted ac-
etabulum shows good postoperative results regarding HHS, VRS, EQ5D-3L and
specific anchor questions.
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