Surgery – Instruments – Orthopedic instrumentation
Patent
1989-02-06
1990-08-21
Hafer, Robert A.
Surgery
Instruments
Orthopedic instrumentation
606 99, 623 13, A61F 208, A61F 276
Patent
active
049502719
ABSTRACT:
A knee reconstruction apparatus and method provides for controlling and adjusting the point of fixation of a ligament graft, for example a replacement for the anterior cruciate ligament, which permits precisely and repeatably adjusting the length of the ligament graft or graft components with the joint under a prescribed load prior to fixation. A fixture is fixed on the tibia and includes an adjustable clamp that holds a ligament graft anchored or held in the femur. The clamp can be moved for adjusting the length of the ligament graft, or individual segments of a composite ligament graft while the joint is under a prescribed load. The load carried by one or more individual graft components also can be measured prior to fixation to ensure that each of the segments of a composite ligament graft will carry the desired or selected load for a joint under a prescribed load.
REFERENCES:
patent: 3973277 (1976-08-01), Semple et al.
patent: 4246660 (1981-01-01), Wevers
patent: 4257411 (1981-03-01), Cho
patent: 4483023 (1984-11-01), Hoffman, Jr. et al.
patent: 4597766 (1986-07-01), Hilal et al.
patent: 4739751 (1988-05-01), Sapega et al.
patent: 4834752 (1989-05-01), Van Kampen
Journal of Bone and Joint Surgery by Robert C. More, M.D. et al., Aug. 1978, Article entitled "Measurement of Stability of the Knee and Ligament Force after Implantation of a Synthetic Anterior Cruciate Ligament", pp. 1020-1031.
Hunter Robert E.
Kowalczyk Curtis W.
Lew William D.
Lewis Jack L.
Hafer Robert A.
Regents of the University of Minnesota
Rooney Kevin G.
LandOfFree
Ligament graft apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ligament graft apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ligament graft apparatus and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1674738