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RADIOGRAPHIC EVALUATION OF OSSEOINTEGRATION OF UNCEMENTED TARGOS® STEMS. A 5-YEAR FOLLOW-UP
Helder de Souza Miyahara1, Jorge Henrique Narciso1, José Guilherme Lollo Correa1
1Universidade de São Paulo, Medical School, Orthopedics and Traumatology Institute, São Paulo, SP, Brazil.
Acta Ortopedica Brasileira
|December 12, 2022
Summary
This study found that Targos® cementless collared femoral stems achieved 100% osseointegration in total hip arthroplasty patients. This excellent bone integration was consistent across various patient demographics and bone qualities.
Area of Science:
- Orthopedic Surgery
- Biomaterials Science
- Radiology
Background:
- Total hip arthroplasty is a standard treatment for hip osteoarthritis, aiming to restore function and alleviate pain.
- Uncemented femoral stems are increasingly used, with osseointegration being a critical factor for long-term success.
Purpose of the Study:
- To evaluate the five-year osseointegration of Targos® cementless collared femoral stems in total hip arthroplasty.
- To assess the influence of patient age, gender, and bone quality on implant osseointegration.
Main Methods:
- An observational study included 182 total hip arthroplasties using Targos® cementless collared femoral stems.
- Bone quality was assessed using the Dorr scale, and osseointegration was evaluated with the Engh score.
Main Results:
- The study achieved a 100% osseointegration rate (Engh > 0) for the Targos® stems.
- No statistically significant differences in osseointegration were observed based on age, gender, primary diagnosis, affected side, or Dorr bone quality score.
Conclusions:
- Targos® cementless collared femoral stems demonstrate excellent osseointegration in total hip arthroplasty.
- Preoperative radiographic "spot welds" showed a strong association with successful implant osseointegration.
