Hip Replacement

by Jackie Schavone and Maggie McGee

Main

LFA

1958

Charley develops Low Friction Arthroplasty. Main problems: cement cracks over time and breaks into pieces resulting in loosening, body reacts to pieces and attempts to remove them which also removes bone.

Modern THR

1962

Invented by Sir John Charnley in England.
Revolutionary features: combination of metal gliding on plastic and also the use of methacrylate cement to attach the artificial components of the bone.

First Preformed THR in USA

1969

Anterior Approach

1975

Approach from the front of the body with noncemented, porous-coated cups which yielded long term excellent results.

AML Cementless Implant Invented

1978

This was created in response to the problems of earlier models.

First Titanium Hip

1985

Biodegradeable plastics, ceramics, cobalt, chrome

1991

Titanium, polyethyne, ceramics

1994

Light weight

Diamond coating, chromium-cobalt-molybdenum, polyethylene

1996

Increased longevity

Zimmer Company

2002

Performed the first minimally invasive THR.

Ceramic blends, steel

2005

Polyethylene

2008

Used to avoid osteolysis (destruction of bone tissue) and loosening in THR steel, titanium, and ceramics.