Stress fracture of the pubis inferior ramus in Bernese periacetabular osteotomy
CHEN Yong
LUO Dian-zhong
CHENG Hui
ZHANG Hong
Abstract：Objective To analyze the stress fracture of the pubis inferior ramus in Bernese periacetabular osteotomy ( PAO ) and short term follow-up results. Methods From April 2010 to October 2012, data of 17 patients ( 17 hips, females ) were collected. The average follow-up was 18.2 months ( range: 7 - 30 months ). Meanwhile, 22 PAO patients ( 22 hips, females ) were randomly chosen and listed in the control group, whose average follow-up was 16.8 months ( range: 8 - 29 months ). The 2 groups were compared in age, body mass index ( BMI ), Harris score preoperatively and postoperatively, lateral CE angle preoperatively and postoperatively, anterior CE angle preoperatively and postoperatively, and Tonnis angle of the acetabular roof preoperatively and postoperatively. Results No significant differences existed in age, BMI, Harris score, lateral CE angle, anterior CE angle and Tonnis angle between the 2 groups preoperatively and postoperatively. 12 hips showed incomplete ischial osteotomy in the fracture group, but only 2 hips were found in the control group, showing statistically significant differences between the 2 groups. Anterior CE angle postoperatively: ( 36.40 ± 11.81 ) in the fracture group and ( 35.68 ± 11.37 ) in the control group with statistical significance ( P = 0.039 ). In the fracture group, no statistically significant differences exited in Harris scores preoperatively and postoperatively. Conclusions Ischial incomplete osteotomy in PAO can lead to stress fracture of the pubis inferior ramus, but does not influence clinical the results if the fracture heals.
Keywords：OsteotomyPubic boneFracturesstressOrthopedic procedures
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 87-90 )