TY - JOUR
T1 - The silicone scaphoid
T2 - A biomechanical study
AU - Viegas, Steven F.
AU - Patterson, Rita M.
AU - Peterson, Pamela D.
AU - Crossley, Michael
AU - Foster, Robert
PY - 1991
Y1 - 1991
N2 - Five fresh cadaver upper extremities were studied by use of a static positioning frame, pressure-sensitive film, and a microcomputer-based videodigitizing system, to assess the load-bearing characteristics of a scaphoid silicone implant within the radioulnarcarpal joint. Specimens were studied in their “normal” condition, after resection of the scaphoid, after placement of a scaphoid implant, and with a scaphoid implant and a simulated capitate-lunate-triquetrum-hamate fusion. The scaphoid silicone implant bore significant, although less, load than the normal scaphoid. Decreasing the size of the scaphoid implant decreased the load born by the implant. Decreased load through the scaphoid implant was compensated by the lunate. The addition of a limited carpal fusion did not significantly decrease the load born by a scaphoid implant. Therefore, the silicone scaphoid implant is a load-bearing implant even when undersized or placed in association with a limited carpal fusion.
AB - Five fresh cadaver upper extremities were studied by use of a static positioning frame, pressure-sensitive film, and a microcomputer-based videodigitizing system, to assess the load-bearing characteristics of a scaphoid silicone implant within the radioulnarcarpal joint. Specimens were studied in their “normal” condition, after resection of the scaphoid, after placement of a scaphoid implant, and with a scaphoid implant and a simulated capitate-lunate-triquetrum-hamate fusion. The scaphoid silicone implant bore significant, although less, load than the normal scaphoid. Decreasing the size of the scaphoid implant decreased the load born by the implant. Decreased load through the scaphoid implant was compensated by the lunate. The addition of a limited carpal fusion did not significantly decrease the load born by a scaphoid implant. Therefore, the silicone scaphoid implant is a load-bearing implant even when undersized or placed in association with a limited carpal fusion.
UR - http://www.scopus.com/inward/record.url?scp=0026061581&partnerID=8YFLogxK
U2 - 10.1016/S0363-5023(10)80019-X
DO - 10.1016/S0363-5023(10)80019-X
M3 - Article
C2 - 1995700
AN - SCOPUS:0026061581
SN - 0363-5023
VL - 16
SP - 91
EP - 97
JO - Journal of Hand Surgery
JF - Journal of Hand Surgery
IS - 1
ER -