Revision femoral stem INITIALE®

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Entire stem has a highly polished finish to prevent abrasion of cement mantle (2). Identical intramedullary shape to Primary INITIALE Stem. Only the length differs. Different lengths within given size (see 'product range' tab). Support collar. Impaction hole on top of stem. Material: stainless steel. Rectangular stem shape transforms rotational shear loads into compressive forces (2). Rounded edges prevent stress concentrations in the cement mantle. Tapered cross-section (A/P and lateral) helps to transform vertical loads into compressive forces (1). Neck-shaft angle: 129° (average). (1) New AM, Taylor M, Wroblewski BM: Effect of Hip Stem Taper on Cement Stresses. Reconstruction cage: cemented acetabular. reconstruction cage. Tapered cross-section (A/P and lateral) helps to transform vertical loads into compressive forces(1).