Ten-year results of uncemented hip stems for failed intertrochanteric osteotomy.
BACKGROUND
Inferior survival of cemented total hip arthroplasty has been reported after previous femoral osteotomy. The purpose of this study was to evaluate the long-term survival of uncemented stems after femoral osteotomy.


METHODS
Forty-eight hips in 45 patients had undergone conversion THA for a failed intertrochanteric osteotomy of the hip after a mean of 12 years (2-33 years). Mean time of follow-up was 11 years (5-15 years).


RESULTS
At follow-up, two patients (three hips) had died, and one patient (one hip) was not located. Three patients (three hips) underwent femoral revision-one for infection and two for aseptic loosening of the stem. Survival of the stem was 94% at 10 years, and survival with femoral revision for aseptic loosening as an end point was 96%. The median Harris Hip Score at follow-up was 80 points. Radiolucent lines in Gruen zones 1 and 7 were present in 14 and 18% of hips, respectively. Radiolucencies in other zones were not detected. There was no radiographic evidence of femoral osteolysis, stress-shielding or loosening.


CONCLUSIONS
The results with this type of uncemented tapered titanium femoral component after proximal femoral osteotomy are encouraging and compare to those achieved in patients with regular femoral anatomy.
Breusch
Steffen J
SJ
Department of Orthopedic Surgery, University of Edinburgh, New Royal Infirmary, Edinburgh, Little France, Scottland.
Lukoschek
Martin
M
Thomsen
Marc
M
Mau
Hans
H
Ewerbeck
Volker
V
Aldinger
Peter R
PR
D000328:Adult; D000368:Aged; D019644:Arthroplasty, Replacement, Hip; D001843:Bone Cements; D005260:Female; D005269:Femur / Q000601:surgery*; D005500:Follow-Up Studies; D006621:Hip Joint / Q000601:surgery; D006622:Hip Prosthesis; D006801:Humans; D007592:Joint Diseases / Q000209:etiology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D010027:Osteotomy / Q000009:adverse effects*; D011475:Prosthesis Failure; D012086:Reoperation; D016896:Treatment Outcome
D001843:Bone Cements