Total Hip Cementation - Heath Taylor 12/9/2000

Authors

HARRIS & Mulroy

Title

The Effect of Improved Cementing Techniques on Component Loosening in THR

Reference

JBJS (Br) 1990; 72-B:757-760

Summary

11y f/u study showing that improved cementing technique (medullary plug, cement gun, stem design) greatly reduced rates of aseptic loosening

Critique

Not randomised, but provides an excellent standard against which modern cement techniques are compared.

Authors

Flivick, Yuan, Juliusson & LIDGREN

Title

Effects of Lamination on the Strength of Bone Cement

Reference

Acta Orthop Scand 1997; 68 (1): 55-58

Summary

Shows that dry or saline laminations up to 4 mins have no effect, but blood laminations weaken cement from 2 mins

Critique

Repeats work by Gruen from 1976, but at slightly earlier times. Is not in-vivo, but is really definitive proof that lamination is a bad thing!