Radiological assessments identified radio-lucent lines, spot welding, pedestal formation and migration in order to assess fixation and stability of the femoral stem according to Engh’s criteria. DeLee and Charnley zones were used to assess loosening of the ace tabular cup. Subsidence, migration and cup-angle were also measured. The criteria for failure was revision or impending revision due to either pain, septic or aseptic loosening.
We describe the survival of 134 consecutive JRI Furlong hydroxyapatite-coated uncemented total hip replacements. The mean follow-up was for 14.2 years (13 to 15). Patients were assessed clinically, using the Merle d’Aubigné and Postel score. Radiographs were evaluated using Gruen zones for the stem and DeLee and Charnley zones for the cup. Signs of subsidence, radiolucent lines, endosteal bone formation (spot welds) and pedestal formation were used to assess fixation and stability of the stem according to Engh’s criteria. Cup angle, migration and radiolucency were used to assess loosening of the cup. The criteria for failure were revision, or impending revision because of pain or loosening. Survival analysis was performed using a life table and the Kaplan-Meier curve. The mean total Merle d’Aubigné and Postel score was 7.4 pre-operatively and 15.9 at follow-up. During the study period 22 patients died and six were lost to follow-up. None of the cups was revised. One stem was revised for a periprosthetic fracture following a fall but none was revised for loosening, giving a 99% survival at 13 years. Our findings suggest that the long-term results of these hydroxyapatite-coated prostheses are more than satisfactory.
We describe the survival at 10 years of 134 consecutive JRI Furlong H.A.-coated uncemented total hip replacements. The follow-up was a minimum of 10 years (10.5 to 12.0 years). Patients were assessed by clinical and radiological means. We used Merle d’Aubigné and Postel clinical score. Radiological assessments identified radio lucent lines, spot welding, pedestal formation and migration in order to assess fixation and stability of the femoral stem according to Engh’s criteria. DeLee and Charnley zones were used to assess loosening of the ace tabular cup. Subsidence, migration and cup-angle were also measured. The criteria for failure was revision or impending revision due to either pain, septic or aseptic loosening. The mean results of the Merle d’Aubigné and Postel score were 7.4 pre-op. and 15.9 post-op. None of the acetabular cups in this series were revised. No femoral stem was revised for loosening. Six patients were lost to follow-up. Of the 128 femoral stems reviewed, only 1 was revised for periprosthetic fracture following a fall.
We describe an unusual case of a postoperative bone cyst resulting from a retained fragment of surgical glove. We highlight some of the problems associated with gloves and suggest ways of safeguarding against similar complications.
