Surgery – Truss – Pad
Patent
1978-03-13
1979-06-26
Frinks, Ronald L.
Surgery
Truss
Pad
128 92C, A61F 124
Patent
active
041588940
ABSTRACT:
A patellar prosthesis has a hollow body portion providing a convex articulating surface on one side and a mounting chamber on its opposite side which provides a peripheral seating rim. An anchoring stem is attached to the body portion within the mounting recess and extends in a direction outwardly thereof and terminates in a flat base plate. The stem is formed of a pair of webs intersecting at a right angle to each other. The hollow body and cruciate cross section stem construction provides a light weight prosthesis which can be securely implanted on a patella which has been resected to provide a raised land portion having a central recess by fitting the seating rim on the raised land. A surgical cement is employed to help secure the prosthesis in place.
REFERENCES:
patent: 3806961 (1974-04-01), Muller
patent: 3878566 (1975-04-01), Bechtol
patent: 3886599 (1975-06-01), Schlein
patent: 3927423 (1975-12-01), Swanson
patent: 3964106 (1976-06-01), Hutter, Jr. et al.
patent: 4007495 (1977-02-01), Frazier
patent: 4069518 (1978-01-01), Groth, Jr. et al.
"A Comparison of Patellectomy with Prosthetic Replacement of the Patella", by R. V. Worrell, Clinical Orthopaedics and Related Research, No. III, Sep. 1975, pp. 284-289.
"Some Aspects of Prosthetic Replacement of the Patella", by R. V. Worrell, Orthopaedic Review, vol. V, No. II, Nov. 1976, pp. 39-42.
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