Total hip arthroplasty with an uncemented tapered femoral component

Jeffrey R McLaughlin, Kyla R Lee
Journal of Bone and Joint Surgery. American Volume 2008, 90 (6): 1290-6

BACKGROUND: Excellent intermediate-term results with use of tapered femoral components in primary total hip arthroplasty have been reported. The purpose of this study was to update our previous report and to evaluate the outcome of total hip arthroplasty with use of the porous Taperloc femoral component in patients who had been followed for a minimum of eighteen years postoperatively.

METHODS: One hundred and forty-five consecutive uncemented total hip arthroplasties in 138 patients were performed between 1983 and 1985, by a single surgeon, with use of the Taperloc femoral component. The outcome of every femoral component with regard to stem fixation, retention, or revision was determined for all 145 total hip replacements. At a mean of twenty years (range, eighteen to 22.6 years) postoperatively, fifty-eight patients (sixty-five hips) were living. In fifty living patients (fifty-seven hips), the femoral component had not undergone revision surgery. Evaluation of the living patients included clinical and radiographic analysis and recording of complications.

RESULTS: Of the eighty patients (eighty hips) who had died, five hips had undergone revision of the femoral component. Only one stem had been revised for aseptic loosening, and no femoral component had been definitely loose by radiographic criteria. In the remaining sixty-five hips in the fifty-eight living patients, eight femoral components were revised. No femoral component underwent revision for aseptic loosening. Definite radiographic evidence of femoral component loosening occurred in one hip. In the fifty living patients (fifty-seven hips) who had not undergone femoral component revision, there was a significant improvement in the mean Harris hip score from 49.3 points preoperatively to 85.4 points at the time of latest follow-up (p = 0.001). Survivorship analysis of all 145 hips, with revision for any reason as the end point, estimated that the survival rate for the femoral component was 87% (95% confidence interval, 79% to 93%) at twenty-two years.

CONCLUSIONS: Primary total hip arthroplasty with the Taperloc femoral component is associated with a low rate of aseptic loosening at a mean follow-up of twenty years.

Full Text Links

Find Full Text Links for this Article


You are not logged in. Sign Up or Log In to join the discussion.

Related Papers

Remove bar
Read by QxMD icon Read

Save your favorite articles in one place with a free QxMD account.


Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"