P.C.A. vitallium acetabular component, which consists of a concave metal cup with an open top and a small, round hole at the bottom; there are two short cylindrical lugs at the outside top edge, close together; the outside edges of the cup are coated with thousands of small (400µ) balls; the top up…
P.C.A. vitallium acetabular component, which consists of a concave metal cup with an open top and a small, round hole at the bottom; there are two short cylindrical lugs at the outside top edge, close together; the outside edges of the cup are coated with thousands of small (400µ) balls; the top upper edge is flat and the inside edges are smooth with a groove cut into the circumference of the metal near the top.
Number Of Parts
1
Provenance
Research material used at the Human Mobility Research Centre.
Dates
1985
circa 1985
Material
metal: silver
Inscriptions
The top edge of the cup has, "V [inside a shield shape] // 58 MM // 6289 - 5 - 058 // SIGPA // D" etched into the metal; the inside bottom of the cup has, "SIGPA" etched into the metal.
Permanent Location
Storage Room 0010
0010-E2-5
Unit Of Measure
centimeters
Dimension Notes
Length 5.9 cm x Width 5.7 cm x Depth 2.6 cm
Condition Remarks
The metal shows minor wear only; no corrosion is visible.
Copy Type
Original
Reference Types
Book
Person
Reference Comments
Dr. Charles Sorbie; "Annual Product Catalogue," by Howmedica International, 1992, p. A4
Research Facts
An engineer and two orthopedic surgeons first developed beads on metal in 1970; Howmedica developed a 400 µ ball P.C.A. (Porus Coated Anatomic) system; Dr. Charles Sorbie was one of the trialists for North America for this system; the purpose of the beads is for bone to grow around the prosthesis after it is implanted; the lugs prevented rotation of the component; the hole at the bottom of the cup was used to make sure the component had been hammered right against the bone.