Tibial Fixation Without Screws in Cementless Knee Arthroplasty

Abstract This study reexamines the clinical and radiologic results of the first 216 cases of a cementless fixed-bearing tibial tray without screw holes in 191 patients at 7.6-year follow-up (range, 5-10 years). Mean Hospital for Special Surgery scores improved from 54/100 preoperatively to 84/100 po...

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Bibliographic Details
Published in:The Journal of arthroplasty 2010, Vol.25 (1), p.46-51
Main Authors: Holloway, Ian P., MBBS, FRCS (Orth), Lusty, Patrick J., MBBS, FRCS (Orth), Walter, William L., MBBS, PhD, FRACS, FAOrthA, Walter, William K., MBBS, FRACS, FAOrthA, Zicat, Bernie A., MD, PhD, FRACS, FAOrthA
Format: Article
Language:English
Subjects:
Adult
Aged
Aged, 80 and over
Arthroplasty, Replacement, Knee - adverse effects
Arthroplasty, Replacement, Knee - methods
cementless fixation
Female
Humans
hydroxyapatite
knee arthroplasty
Knee Joint - diagnostic imaging
Knee Prosthesis
Male
Middle Aged
Orthopedics
Osteolysis - etiology
Osteolysis - surgery
Patient Satisfaction
Polyethylene
Prosthesis Failure
Radiography
Reoperation
Survival Analysis
Tibia - surgery
tibial fixation
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Summary:Abstract This study reexamines the clinical and radiologic results of the first 216 cases of a cementless fixed-bearing tibial tray without screw holes in 191 patients at 7.6-year follow-up (range, 5-10 years). Mean Hospital for Special Surgery scores improved from 54/100 preoperatively to 84/100 postoperatively. Four tibial baseplates were revised. Five polyethylene inserts were revised. The overall reoperation rate was 12%. Four percent of tibial baseplates had incomplete nonprogressive radiolucent lines involving 1 or 2 of 10 defined zones. Overall tibial osteolysis rate was 4.1%. All tibial components were stable by radiographic technique. We conclude that this tibial tray provides reliable stability without the use of screws at medium-term follow-up. The polyethylene failure rate is a concern.
ISSN:0883-5403
1532-8406
DOI:10.1016/j.arth.2008.09.023