Dynamic sagittal knee test apparatus

Details Dynamic sagittal knee test apparatus Dynamic sagittal knee test apparatus

1988-12-07

1990-03-27

Hindenburg, Max

Surgery

Truss

Pad

33512, A61B 510

Patent

active

049111779

ABSTRACT:
An improved dynamic sagittal knee test apparatus having a skeletal frame structure with a thigh portion attachable to a patient's thigh, a shin portion attachable to a patient's shin and an interconnecting spanning linkage portion connecting the thigh portion to the shin portion, the interconnecting linkage assembly having three axial transducers for measuring arcuate displacements on three primary perpendicular axes for measuring leg flexion, varus-valgus angular displacement, and axial rotation of the tibia relative to the femur, the three transducers being arranged to take measurements without reconfiguration of linkage in the spanning link portion of the test apparatus, the apparatus including a patella assembly with an additional transducer for measuring anterior-posterior displacements of the tibia relative to the femur.

REFERENCES:
patent: 4306571 (1981-12-01), McLeod, Jr.
patent: 4436099 (1984-03-01), Raftopoulos
patent: 4534364 (1985-08-01), Lamoreux
patent: 4804000 (1989-02-01), Lamb et al.

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