Cement-Within-Cement Stem Exchange Using the Collarless Polished Double-Taper Stem

• Published in: The Journal of arthroplasty Vol. 22; no. 7; pp. 1000 - 1006
• Main Authors: Mandziak, Daniel G., MBBS, Howie, Donald W., MBBS, PhD FRACS, Neale, Susan D., MSc, McGee, Margaret A., MPH, BSc
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01.10.2007
• Subjects: Adult; Aged; Aged, 80 and over; Arthroplasty, Replacement, Hip - instrumentation; Arthroplasty, Replacement, Hip - methods; Bone Cements; cement-within-cement; double taper; Female; femoral stem; Femur - diagnostic imaging; Femur - surgery; Follow-Up Studies; Hip Prosthesis; Humans; Male; Middle Aged; Orthopedics; outcomes; Prospective Studies; Prosthesis Design - instrumentation; Prosthesis Design - methods; Radiography; Reoperation - instrumentation; Reoperation - methods; revision hip arthroplasty; double taper; cement-within-cement; outcomes; revision hip arthroplasty; femoral stem
• ISSN: 0883-5403; 1532-8406
• DOI: 10.1016/j.arth.2007.06.001

Abstract The clinical and radiographic outcomes of the cement-within-cement femoral stem exchange technique at revision hip arthroplasty were determined. Twenty-three revisions with a collarless polished double-taper stem design were prospectively monitored at up to 12 years. The most common indications for revision were recurrent dislocation and acetabular revision. Radiographic stem subsidence was measured by the Ein Bild Röentgen Analyse method. There was no stem re-revision and no radiographic loosening. Stem within cement subsidence, an intentional design feature of this stem, averaged 0.8 mm (range, 0-2 mm). The average subsidence was similar to that in primary hip arthroplasty. The excellent long-term results of cemented collarless polished taper stems for primary and revision hip arthroplasty can be extended even further by cement-within-cement exchange, which preserves the femur.