Acetabular implant is a cementless 2-component cup. A metal shell for bony ingrowth + a polyethylene liner (sometimes metal or ceramic) to articulate with femoral head. This section discusses the Shell.
Acetabular implant is a cementless 2-component cup. A metal shell for bony ingrowth + a polyethylene liner (sometimes metal or ceramic) to articulate with femoral head. This section discusses the LINER.
The Femoral Head articulates with the Acetabular Liner. The Femoral Head also forms a junction with the Femoral Stem at the Trunnion. We discuss Femoral Head Sizes and Material Options (stainless steel vs. ceramic).
Press-fit stems achieve immediate fixation to allow ingrowth. We discuss principles of "press-fit" and then review the different stem designs that allow for this technique.
The cemented stem was the original THA system. Cement is polymethylmethacrylate. We discuss the cement technique, basic properties of PMMA, history of PMMA, collar vs. collarless design, and technique for antibiotic cement.