We have applied 15 Harris-Galante cementless porous-coated prostheses in 14 patients, comprising cases of intracapsular fracture, osteoarthritis, rheumatoid-arthritis, and femomal head necrosis. The patients were separated radiographically two groups based on the preoperative Singh index.
Postoperatively JOA scores were compared between the two groups.
Three patients were male, and 11 were female. The mean age at operation was 64.9 years (42-89 years). The mean followup period was 46.7 months (range: 27-74 months). The average post Sigificant correlation between preoperative Singh index and postoperative JOA score was observed. The average postoperative JOA score in the severe porosis group was 73.3 points (67-80); in the non porosis group the average post-opratve JOA score was 91.4 points (84-100). A radiolucent zone tended to appear more frequently and was assouafed with aggrawaton of severe conditions in the porosis group.
Based on the results, we recommend the use of the cementless porous stem in patients without osteoporosis. Cement fixation sheuld be used in patients with severe porosis.
