Menu Close

Austin Moore Hip Prosthesis (Late Model)

Health Sciences · Robert W. Jackson Arthroscopy

A metal artificial hip consisting primarily of a ball attached to a tapered stem by a collar. The artifact is a single solid piece. Much of the ball has a high polish while the remainder has a duller finish. The stem (“femoral stem”) has two voids, or “fenestrations”, along its length. The collar has a single hole to facilitate removal.

Accession Number: 2023.JAC.269

Alternative Name:

Austin Moore hemiarthroplasty (AMA); Unipolar Prosthesis

Primary Materials:

Vitallium (an alloy of cobalt, chromium, molybdenum, and other materials)


This item was received wrapped in an off-white towel. The bundle was secured with a wrap of packing tape. The following was written on the packing tape: “Late Model Austin Moore// (Vitalium) W [with] part of// impactor & 2 awls”

A collar like element at the interface between the ball and stem has the following stamped into it: “GG 0572”

One of the flattened sides of the femoral stem has the following stamped into it: “2 VITALLIN”

Dimensions (cm): Height = 5.5; Width = 5.5; Length = 19.


The Austin Moore hip prosthesis is a common treatment for elderly patients when the femoral neck is fractured and displaced. Femoral neck fractures (often called “hip fractures”) are a very common injuries among elderly people.

The ball of the prosthesis approximates the shape of the femoral head. The fenestrations in the stem allow for bone ingrowth (“osseointegration”).


The polished part of the ball has light abrasions in various places. The edges of the collar at the base of the ball has heavy patches of wear as do the edges of the voids.

Associated Instruments:


Date of Manufacture: Mid-to-late 20th c.


The Robert W. Jackson Arthroscopy Collection was acquired by the University of Toronto from Dr. Jackson’s family on November 12th, 2020.

This item was one of four received together in a labelled bundle ( 2023.JAC.269 t0 2023.JAC..271)

Additional Information and References:

Kim J. Chillag, “Giants of Orthopaedic Surgery: Austin T. Moore MD.” Clinical Orthopaedics and Related Research 474, no. 12 (2016): 2606–10.

Historical Notes:

The Auston Moore prosthesis was developed by American orthopedic surgeon Austin T. Moore (1899–1963). It was first implanted in 1940 and improved over subsequent decades. Auston Moore prosthesis became the first commercial body part replacement to be available worldwide [Chillag 2608].

  • Donated to UTSIC