Wednesday, January 15, 2025

What is the history of hip replacements? What materials did they first use?

The dude was Themistocles Gluck.

Figured he would create the first hip replacement back in 1891 using ivory. He made certain mistakes, same as any pioneer pushing limits.

Though revolutionary, the ivory joints he created finally failed since the human body simply wasn't having it. It was like attempting to combine two incompatible systems: rejection was unavoidable.

Then in the 1960s, this outstanding British surgeon-Sir John Charnley, transformed the discipline. Debuted what we now refer to as low-friction arthroplasty.

Tried Teflon, but it didn't work out. Then he voila, hit gold using high-density polyethylene coupled with stainless steel.

Ceramic components—smooth as silk and strong as nails—first appeared in the 1970s.

Arriving on the scene in the 1980s, titanium alloys offered their remarkable strength-to-weight-ratio.

Today we have very wear-resistant, highly-cross-linked-polyethylene.

The newest ceramic-on-ceramic bearings-so smooth they make butter jealous.

And the surface treatments they are now applying—hydroxyapatite coatings that essentially fool your bone into believing the implant is just another item in the neighborhood.

Custom implants produced using 3D-print technology are the newest buzz item.

These instruments--match every curve and shape of a patient's anatomy, so fitting--like a personalized suit.

Unmatched accuracy is present; we speak of microns here rather than millimeters. 

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