10 YEAR FOLLOW UP OF THE FURLONG HA COATED TOTAL HIP REPLACEMENT

Abstract

We followed up 82 patients who under went 92 Furlong Hydroxyapatite coated uncemented femoral stem, and threaded acetabular component. All hips had a 28mm ceramic heads.

These hips were inserted between the periods 1989–1992. The mean age of the patients at the time of surgery was 54(31–67).

At the ten year follow up there were 64 patients with 70 hips. 5 hips were revised. 3 for acetabular component loosening, 2 for infection. 8 patients died from unrelated causes, 3 refused to attend but filled in the Oxford hip score by mail, 2 were lost to follow up.

At 10 years follow-up the mean age was 64(41–77) years. The Oxford, and the Harris hip scores were used to Asses the patients clinically, and a standard AP pelvis X-Ray showing both hips was performed

Clinically we found that the mean Harris hip score was 90 (51 – 100), the mean Oxford hip score 20 (12 – 45).

Radiographic assessment showed good component fixation with uniform bone growth around the components. The average angle of the Acetabular component was 52 (40– 60). 21 hips showed polyethylene wear in the acetabular component, 5 had more than 2mm wear, and 1 had more than 3mm of poly wear.

36 (52%) of the hips showed proximal calcar remodelling.

We conclude that the Furlong HA coated THR is an excellent THR for the young patient who has a higher activity demand with a cumulative survival rate of 94.29% (CI ±5.2).