Abstract: Introduction: Osseointegration is the ability of implants to establish mechanical and functional bond with bone without forming any connective tissue.
Osseointegration is useful for clinical follow-up in many implants e.g. dental implants, hearing aids, spinal fusion implants, prosthesis.
Endoprosthesis functions pain free when their anchoring components are firmly fixed to the osseous tissue. Total hip arthroplasty is a common procedure in many conditions that reduces pain and improves functions. Non-cemented implants need precise preparation of implant bed and additional fixation device such as screws or projections that cut into the bone to achieve stability. The long term stability and function of joint replacement can be evaluated on the basis of outcomes. If improper osseointegration occurs then fibrinous tissue formed between bone and implant that cause weak and loose implant.
Materials and Methods: This was an observational type of study where non-cemented total hip replacement done by different surgeons were included for follow-up. The follow-ups were done in US Bangla Medical College Hospital, Narayangonj and Kurmitola General Hospital, Dhaka between July 2017 to December 2019. A total of 37 patients of total hip replacement were included in this study strictly following inclusion and exclusion criteria.
Results and Discussion: To see the functional outcome Harris Hip Score (HHS) was done. Mean HHS at their final follow-up was 88.32±10.32. There were 19 (51.44) patients in excellent category, 11 (29.7%) in good, 4 (10.8%) fair and 3 (8.1%) in poor category according to HHS. Engh’s score was used to see the radiological outcome and it is divided into two part Fixation and Stability. Mean fixation Engh’s score was 5.27±4.63 and stability score was 9.46±8.78. Mean of total Engh’s score was 14.73±12.67. Out of 37 patients 25 (67.6%) patients were bone ingrown, 7 (18.9%) in-growth suspected, 3 (8.1%) suboptimal but stable and 2 (5.4%) were unstable according to Engh’s score for radiological evaluation.
Conclusion: To see the osseointegration accurately CT scan or other precise imaging technique should be used. However radiographic evaluation of uncemented total hip arthroplasty by x-ray is valuable method to see osseointegration. But it needs long term follow-up.
