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Migration of hydroxyapatite coated femoral prostheses. A Roentgen Stereophotogrammetric study
- Source :
- The Journal of Bone and Joint Surgery. British volume. :681-687
- Publication Year :
- 1993
- Publisher :
- British Editorial Society of Bone & Joint Surgery, 1993.
-
Abstract
- We allocated randomly 27 patients undergoing 28 primary uncemented total hip replacements (THR) to receive prosthetic components of similar design with either plasma-sprayed titanium alloy (Ti) coating (n = 13) or hydroxyapatite (HA) coating (n = 15). After some exclusions, 15 of the patients (15 THR; 7 with HA- and 8 with Ti-coating) were followed by roentgen stereophotogrammetric analysis at 3, 6 and 12 months to measure migration of the femoral component. Twenty-six of the patients (26 THR) were followed clinically and by conventional radiography. All the femoral components had migrated at 3 months. From 3 to 12 months, the migration of Ti-coated components continued whereas the HA-coated components had stabilised. At 12 months there was significantly less migration of the HA-coated components (p < 0.05). The maximum subsidence was 0.2 mm in both groups. The Harris hip score was equal in the two groups preoperatively but at follow-up it was better in the HA-coated group (p < 0.05) and visual analogue scale scores showed that they had less pain (p < 0.05).
- Subjects :
- Surface Properties
Visual analogue scale
Radiography
Roentgen stereophotogrammetric analysis
Dentistry
Prosthesis Design
symbols.namesake
Foreign-Body Migration
Materials Testing
Osteoarthritis
Humans
Medicine
Orthopedics and Sports Medicine
Femur
Femoral component
Aged
Aged, 80 and over
Titanium
business.industry
Roentgen
Middle Aged
Prosthesis Failure
Conventional radiography
Durapatite
Treatment Outcome
Harris Hip Score
Photogrammetry
symbols
Hip Joint
Surgery
Hip Prosthesis
Hydroxyapatites
business
Follow-Up Studies
Subjects
Details
- ISSN :
- 20445377 and 0301620X
- Database :
- OpenAIRE
- Journal :
- The Journal of Bone and Joint Surgery. British volume
- Accession number :
- edsair.doi.dedup.....deff1bc2a52d105bfdf10f581aa3e337