1978-04-26
1979-08-21
Frinks, Ronald L.
Surgery
Truss
Pad
128 92C, A61F 124
Patent
active
041647939
ABSTRACT:
A flexible implant for replacement of the lunate bone of the wrist includes a one-piece body of resilient material defining a planar triquetrum face having a general U-shape in plan and further including a stabilizing stem extending outwardly from and perpendicular to the planar triquetrum face and a planar scaphoid face having a generally U-shape in plan extending at an angle with respect to the triquetrum face. The body further includes a cupped, concave, smooth distal surface adapted to articulate with the head of the capitate bone. The body defines a proximal surface having a smooth convex shape and extending between the proximal edges of the triquetrum and scaphoid faces. Generally planar palmar and dorsal surfaces extend between the dorsal lateral edges and the palmar lateral edges of the triquetrum and scaphoid faces.
REFERENCES:
"Silicone Rubber Implants for Replacement of Arthritic or Destroyed Joints in the Hand", by Alfred B. Swanson, Surgical Clinics of North America, vol. 48, No. 5, Oct. 1968, pp. 1113-1127.
"Flexible Implant Resection Arthroplasty in the Hand and Extremities," (Book) by Alfred B. Swanson, The C. V. Mosby Company, Saint Louis, 1973, pp. 1-6, 15, 16, 30, 31 & 242-253.
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