Introduction. While the undisplaced acetabular fractures have a good progno
sis after conservative treatment, the management of the displaced fractures
has been a controversial issue over the last decades with variable results
in their treatment and prognosis. Anatomical reduction can be only achieve
d operatively. The long term outcome of 209 patients with displaced acetabu
lar fractures treated by open reduction and internal fixation was presented
.
Material and methods: Between 1972 and 1996, 209 patients with a mean age o
f 38 years (15-62a) were treated for displaced acetabular fractures operati
vely. 161 patients could be followed up over a period of 2 to 20 years. The
function of the hip joint in correlation with radiological results was eva
luated according to the scheme of Merle d'Aubinge.
Results: Patients with single column fractures showed 90% good or excellent
results followed by 55% good or excellent results in patients with transve
rse fractures. The highest rates of complication (20% osteoarthritis, 6% fe
moral head necrosis, 9% heterotopic ossification) were observed in both col
umn fractures and in transverse and posterior wall fractures. Deep infectio
n was observed in 6 cases (4%), superficial wound infection in 8 cases (5%)
. Primary sciatic nerve palsy was seen in 10 cases (6%) and postoperative p
eroneal nerve palsy in 6 cases (4%), all of which improved during the rehab
ilitation period.
Conclusion: Displaced acetabular fractures of the weight bearing part of th
e dome, i.e. transtectal fractures, should be treated operatively. The oper
ation should preferably be performed within one week after the injury.