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Impaction bone grafting for acetabular reconstruction: mean 5.5-year results in Japanese patients
Toshiki Iwase1, Tetsuo Masui, Yukio Torii
1Department of Orthopedic Surgery, Hamamatsu Medical Center, Hamamatsu, Shizuoka, 432-8580, Japan. iwase-t@hmedc.or.jp
Introduction:
We performed a retrospective outcome study on 23 consecutive acetabular reconstructions involving impaction bone grafting in Japanese patients.
Method:
Two hips had cavitary defects, and 21 hips had combined segmental and cavitary defects. The mid-term follow-up was performed at a mean of 5.5 years postoperatively. The mean Merle d'Aubigné and Postel hip score had improved from 11.5 to 15.7 points at the final follow-up. Two hips showed migration at 30 months after surgery, and one of these was a candidate for re-revision due to symptomatic cup migration.
Results:
The Kaplan-Meier survival rate of the cup, with loosening and re-operation as the end points, was 91.3 and 95.7% at 5 years, respectively.
Conclusion:
Acetabular impaction bone grafting is a reproducible technique in which surgeons should strictly follow the recommended technical procedure.