Back to the Future…Don't Forget the Cement: Commentary on an article by J.N. Lamb, BSc, MBBS, MRCS, et al.: "Risk Factors for Revision of Polished Taper-Slip Cemented Stems for Periprosthetic Femoral Fracture After Primary Total Hip Replacement. A Registry-Based Cohort Study from the National Joint Registry for England, Wales, Northern Ireland and the Isle of Man".