A SURVEY OF THE CANADIAN RESURFACING WORKING GROUP EXPERIENCE: RATES OF CONVERSION FROM RSA TO THR

Powell JN, Beaulé PE, Antoniou J, et al. A SURVEY OF THE CANADIAN RESURFACING WORKING GROUP EXPERIENCE: RATES OF CONVERSION FROM RSA TO THR. Orthop Procs. 2012;94-B(SUPP_XXXVIII):165-165. doi:10.1302/1358-992X.94BSUPP_XXXVIII.COA2011-165

Powell, James N, et al. “A SURVEY OF THE CANADIAN RESURFACING WORKING GROUP EXPERIENCE: RATES OF CONVERSION FROM RSA TO THR.” Orthopaedic Proceedings, vol. 94-B, no. SUPP_XXXVIII, 2012, pp. 165-165., https://doi.org/10.1302/1358-992X.94BSUPP_XXXVIII.COA2011-165

Powell, J. N., Beaulé, P. E., Antoniou, J., Bourne, R. B., Schemitsch, E. H., Vendittoli, P., Smith, F., Werle, J., Lavoie, G., Burnell, C., Belzile, É., Kim, P., Lavigne, M., Huk, O. L., O'Connor, G., & Smit, A. (2012). A SURVEY OF THE CANADIAN RESURFACING WORKING GROUP EXPERIENCE: RATES OF CONVERSION FROM RSA TO THR. Orthopaedic Proceedings, 94-B(SUPP_XXXVIII), 165-165. https://doi.org/10.1302/1358-992X.94BSUPP_XXXVIII.COA2011-165

Powell, J. N., Beaulé, P. E., Antoniou, J., Bourne, R. B., Schemitsch, E. H., Vendittoli, P. et al. (2012) “A SURVEY OF THE CANADIAN RESURFACING WORKING GROUP EXPERIENCE: RATES OF CONVERSION FROM RSA TO THR.” Orthopaedic Proceedings, 94-B(SUPP_XXXVIII), pp. 165-165. Available at: https://doi.org/10.1302/1358-992X.94BSUPP_XXXVIII.COA2011-165

Powell, James N, Paul E Beaulé, John Antoniou, Robert B Bourne, Emil H Schemitsch, Pascal Vendittoli, Frank Smith, et al. “A SURVEY OF THE CANADIAN RESURFACING WORKING GROUP EXPERIENCE: RATES OF CONVERSION FROM RSA TO THR.” Orthopaedic Proceedings 94-B, no. SUPP_XXXVIII (2012): 165-165. https://doi.org/10.1302/1358-992X.94BSUPP_XXXVIII.COA2011-165

Powell JN, Beaulé PE, Antoniou J, Bourne RB, Schemitsch EH, Vendittoli P, et al. A SURVEY OF THE CANADIAN RESURFACING WORKING GROUP EXPERIENCE: RATES OF CONVERSION FROM RSA TO THR. Orthop Procs. 2012 Sep 1;94-B(SUPP_XXXVIII):165-165. https://doi.org/10.1302/1358-992X.94BSUPP_XXXVIII.COA2011-165

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Abstract

Purpose

The purpose of the study was to determine the rate of conversion from RSA to THR in a number of Canadian centers performing resurfacings

Method

Retrospective review was undertaken in 12 Canadian Centers to determine the rate of revision and reason for conversion from RSA to THR. Averages and cross-tabulation with Chi-Squared analysis was performed. kaplan Meier survivorship was calculated.

Results

A total of 2810 resurfacings were performed up to December 2008. 770 hips had a minimum of 5 year follow-up. The overall survivorship of this group was 97.8%. 80 patients underwent conversion to THR. Five resurfacing systems were used. The reason for failure is reported: 21 were for femoral neck fracture, 25 were for loosening, 9 were for deep infection, 3 foravn, 4 pseudotumors, 2 for impingement, 6 for groin pain and 10 for other reasons. The cumulative conversion rate is 2.8%. The survivorship was significantly different analyzed by gender. The 5 year female survivorship was 95.4% and for males was 97.7%. Surgeon experience proved to be a significant factor in conversion rates.

Conclusion

The revision rate to date with this new technology suggests that with increasing experience hip resurfacing arthroplasty remains an acceptable option for the treatment of hip arthritis.

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General Orthopaedics

A SURVEY OF THE CANADIAN RESURFACING WORKING GROUP EXPERIENCE: RATES OF CONVERSION FROM RSA TO THR

Canadian Orthopaedic Association (COA)

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