SHORT-TERM FUNCTIONAL OUTCOMES OF ROBOTIC-ASSISTED TOTAL HIP ARTHROPLASTY: COMPARISON OF IMPLANT TYPES

Domb B, Annin S, Diulus S, et al. SHORT-TERM FUNCTIONAL OUTCOMES OF ROBOTIC-ASSISTED TOTAL HIP ARTHROPLASTY: COMPARISON OF IMPLANT TYPES. Orthop Procs. 2021;103-B(SUPP_1):28-28. doi:10.1302/1358-992X.2021.1.028

Domb, B., et al. “SHORT-TERM FUNCTIONAL OUTCOMES OF ROBOTIC-ASSISTED TOTAL HIP ARTHROPLASTY: COMPARISON OF IMPLANT TYPES.” Orthopaedic Proceedings, vol. 103-B, no. SUPP_1, 2021, pp. 28-28., https://doi.org/10.1302/1358-992X.2021.1.028

Domb, B., Annin, S., Diulus, S., Ankem, H., Meghpara, M., Shapira, J., Rosinsky, P., Maldonado, D., & Lall, A. (2021). SHORT-TERM FUNCTIONAL OUTCOMES OF ROBOTIC-ASSISTED TOTAL HIP ARTHROPLASTY: COMPARISON OF IMPLANT TYPES. Orthopaedic Proceedings, 103-B(SUPP_1), 28-28. https://doi.org/10.1302/1358-992X.2021.1.028

Domb, B., Annin, S., Diulus, S., Ankem, H., Meghpara, M., Shapira, J. et al. (2021) “SHORT-TERM FUNCTIONAL OUTCOMES OF ROBOTIC-ASSISTED TOTAL HIP ARTHROPLASTY: COMPARISON OF IMPLANT TYPES.” Orthopaedic Proceedings, 103-B(SUPP_1), pp. 28-28. Available at: https://doi.org/10.1302/1358-992X.2021.1.028

Domb, B., S. Annin, S. Diulus, H. Ankem, M. Meghpara, J. Shapira, P. Rosinsky, D. Maldonado, and A. Lall. “SHORT-TERM FUNCTIONAL OUTCOMES OF ROBOTIC-ASSISTED TOTAL HIP ARTHROPLASTY: COMPARISON OF IMPLANT TYPES.” Orthopaedic Proceedings 103-B, no. SUPP_1 (2021): 28-28. https://doi.org/10.1302/1358-992X.2021.1.028

Domb B, Annin S, Diulus S, Ankem H, Meghpara M, Shapira J, et al. SHORT-TERM FUNCTIONAL OUTCOMES OF ROBOTIC-ASSISTED TOTAL HIP ARTHROPLASTY: COMPARISON OF IMPLANT TYPES. Orthop Procs. 2021 Feb 1;103-B(SUPP_1):28-28. https://doi.org/10.1302/1358-992X.2021.1.028

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Abstract

Background

Total hip arthroplasty (THA) has been and continues to be the gold standard for treatment of end-stage osteoarthritis. With each year, implant characteristics are evolving to increase patient-reported outcomes and decrease complications. Purpose: to report minimum 2-year outcomes and complications in patients who underwent robotic-arm assisted THA using Corin versus Stryker-type implants.

Methods

Data were prospectively collected on patients who underwent THA with Corin-type implants (both cup and stem) and THA using Stryker implants between June 2011 and July 2016. A 1:1 propensity match was performed using the following 5 covariates: age, body mass index, gender, Charlson score and smoking status. Surgical outcomes were assessed at minimum 2-year follow-up using the Forgotten Joint Score (FJS), Harris Hip Score (HHS), Veterans RAND 12-item physical and mental health survey, Short Form 12 physical and mental health survey, Visual Analog Score (VAS), and patient satisfaction. The exclusion criteria were previous hip condition/surgery, workers compensation, or were unwilling.

Results

Of the eligible 774 cases, 645 patients (83.3%) had minimum 2-year follow-up and met inclusion and exclusion criteria. Of the 645 patients, 323 had Corin implants, and 155 had Stryker implants. The 1:1 propensity match successfully yielded 290 patients (145 per implant group) which had a minimum 2-year follow-up at a mean 38.3 months (range, 24.1–65.3 months). Average age was 59.9 (range, 34.92–79.89 Stryker group, 30.65–75.92 Corin group) for each group and average BMI were 30.0 (range, 19.05–49.33) kg/m² for the Stryker group and 29.77 (range, 20.15–55.37) kg/m² for the Corin group. FJS (P=0.0388) and patient satisfaction (P=0.0019) were significantly higher in the Stryker implant group than the Corin implant group. There were nine cases of postoperative thigh numbness or paresthesias, three cases of wound infection, and one case of nonunion in the Corin-implant group. There were four cases of postoperative thigh numbness or parasthesias and six cases of wound infection in the Stryker-implant group.

Conclusion

At minimum 2-year follow-up, patients who had undergone THA with Stryker-type implants had significantly higher FJS and satisfaction and a trend toward decreased complications than patients with Corin-type implants. These results can help guide decision making for surgical instrumentation by arthroplasty surgeons.