Effects of design changes on cemented tapered femoral stem fixation

This data was imported from PubMed:

Authors: Middleton, R.G., Howie, D.W., Costi, K. and Sharpe, P.

Journal: Clin Orthop Relat Res

Issue: 355

Pages: 47-56

ISSN: 0009-921X

DOI: 10.1097/00003086-199810000-00006

The effects of matte finish and modularity on loosening of tapered stems using the same cementing technique were studied prospectively. In 80 patients, 82 cemented Exeter primary stems were implanted at total hip revision by one surgeon using the same surgical and cementing technique throughout the series. The polished stems behaved differently than the matte surfaced stems behaved. Polished stems subsided in the cement mantle an average of 1 mm at 2 years after implantation, but without subsequent loosening of stems at as long as 12 years after implantation. Matte surfaced stems with metal centralizers had a higher loosening rate, and loss of fixation at the prosthesis to cement interface was identified as an early sign of loosening of these stems. At a mean 6-year followup, there were no revisions nor was there radiographic evidence of loosening of the polished modular stems. It is concluded that matte finish results in increased loosening of tapered stems but the introduction of modularity did not.

This data was imported from Scopus:

Authors: Middleton, R.G., Howie, D.W., Costi, K. and Sharpe, P.

Journal: Clinical Orthopaedics and Related Research

Issue: 355

Pages: 47-56

eISSN: 1528-1132

ISSN: 0009-921X

DOI: 10.1097/00003086-199810000-00006

The effects of matte finish and modularity on loosening of tapered stems using the same cementing technique were studied prospectively. In 80 patients, 82 cemented Exeter primary stems were implanted at total hip revision by one surgeon using the same surgical and cementing technique throughout the series. The polished stems behaved differently than the matte surfaced stems behaved. Polished stems subsided in the cement mantle an average of 1 mm at 2 years after implantation, but without subsequent loosening of stems at as long as 12 years after implantation. Matte surfaced stems with metal centralizers had a higher loosening rate, and loss of fixation at the prosthesis to cement interface was identified as an early sign of loosening of these stems. At a mean 6-year followup, there were no revisions nor was there radiographic evidence of loosening of the polished modular stems. It is concluded that matte finish results in increased loosening of tapered stems but the introduction of modularity did not.

This data was imported from Web of Science (Lite):

Authors: Middleton, R.G., Howie, D.W., Costi, K. and Sharpe, P.

Journal: CLINICAL ORTHOPAEDICS AND RELATED RESEARCH

Issue: 355

Pages: 47-56

eISSN: 1528-1132

ISSN: 0009-921X

This data was imported from Europe PubMed Central:

Authors: Middleton, R.G., Howie, D.W., Costi, K. and Sharpe, P.

Journal: Clinical orthopaedics and related research

Issue: 355

Pages: 47-56

eISSN: 1528-1132

ISSN: 0009-921X

The effects of matte finish and modularity on loosening of tapered stems using the same cementing technique were studied prospectively. In 80 patients, 82 cemented Exeter primary stems were implanted at total hip revision by one surgeon using the same surgical and cementing technique throughout the series. The polished stems behaved differently than the matte surfaced stems behaved. Polished stems subsided in the cement mantle an average of 1 mm at 2 years after implantation, but without subsequent loosening of stems at as long as 12 years after implantation. Matte surfaced stems with metal centralizers had a higher loosening rate, and loss of fixation at the prosthesis to cement interface was identified as an early sign of loosening of these stems. At a mean 6-year followup, there were no revisions nor was there radiographic evidence of loosening of the polished modular stems. It is concluded that matte finish results in increased loosening of tapered stems but the introduction of modularity did not.

The data on this page was last updated at 05:18 on July 20, 2019.