United Kingdom Change

Information for Medical Professionals

Mallory-Head Shell (Revision)

The cementless acetabular shells form part of the Mallory-Head range of femoral and acetabular implants that were developed in co-operation with Dr Thomas H. Mallory, MD, at the Ohio State University, and Dr William C. Head, MD, University of Texas.


Features:

  • Available in diameters 40mm to 80mm to meet all patient needs, including revision cases
  • Closed Pore Porous Coating for minimal wear debris ingress and long term fixation1 
  • Plasma sprayed Porous Coating offers immediate implant stability2
  • Incorporates 4 Radial Fins for primary fixation and rotational stability
  • Option of Porous Coating with Hydroxyapatite3,4
  • ArCom polyethylene RingLoc liner - 47% increase in wear resistance coupled with superior liner stability5,6 
  • Option of Metal on Metal Articulation for minimal wear debris
  • Option of Solid shells (no dome holes) and shells with both dome and rim holes to meet surgical preference and the requirements of individual cases
     

 References:

1Bourne RB, Rorabeck CH, Burkart BC, Kirk PG. Ingrowth Surfaces. Plasma spray Coating to Titanium Alloy Hip Replacements. Clin. Orthop 1994 Jan; 298: 37-4.
2 Markel DC, Hora N, Milosic M, Grimm MJ. Initial Scratch Fit Stability of Acetabular Cups: Comparison of Three Porous Coating Systems. Presented at the 10th Annual ISTA Congress, Sept 25-27, 1997. San Diego, CA, USA.
3 Soballe K, Toksvig-Larsen S, Gelinek J, Fruengaard S, Hansen S, Ryd L, Lucht U, Bunger C. Migration of Hydroxyapatite Coated Femoral Prosthesis. JBJS Vol. 75-B. No 5. Sept. 1993.
4 Passuti N, Gouin F, Dlecrin F. Advantage and Disadvantages of HA Coating. Presented at the 3rd Domestic Congress of the European Hip Society, Beaune, France, June 25-27, 1998.
5 Clarke IC, Good VD, Johnson SA, Philpatanakul W, Gustafson A. Hip Simulator Wear Comparisons of UHMWPE Cup Processing: Extruded and Gamma-Sterilized (Air) Vs Molded and Irradiated (Argon). Presented at 43rd AORS, San Francisco, CA, Feb 1997
6 Postak PD, Trodonsky S, Froimson AI, Greenwald AS. Performance Characteristics of Two-Piece Acetabular Cups SeriesII. Exhibit at 62nd AAOS, Atlanta, GA, 1996