The effects of lateral meniscal allograft transplantation techniques on tibio-femoral contact pressures

This paper reports a series of comparative tests in vitro, that examined how meniscectomy and meniscal allografting affected tibio-femoral joint contact pressure. Knees were loaded in axial compression and pressure maps obtained from the lateral compartment using Fuji Prescale film inserted below th...

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Bibliographic Details
Published in:Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA sports traumatology, arthroscopy : official journal of the ESSKA, 2008-06, Vol.16 (6), p.553-560
Main Authors: McDermott, Ian D., Lie, Denny T. T., Edwards, Andrew, Bull, Anthony M. J., Amis, Andrew A.
Format: Article
Language:English
Subjects:
Adult
Aged, 80 and over
Cadaver
Cadavers
Femur - physiology
Humans
Knee
Ligaments
Ligaments, Articular - surgery
Medicine
Medicine & Public Health
Menisci, Tibial - surgery
Menisci, Tibial - transplantation
Middle Aged
Orthopedic Procedures - methods
Orthopedics
Pressure
Suture Techniques
Sutures
Tibia - physiology
Tibia - surgery
Transplantation, Homologous
Weight-Bearing
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Summary:This paper reports a series of comparative tests in vitro, that examined how meniscectomy and meniscal allografting affected tibio-femoral joint contact pressure. Knees were loaded in axial compression and pressure maps obtained from the lateral compartment using Fuji Prescale film inserted below the meniscus. This was repeated after meniscectomy, and then after meniscal allografting with fixation by a bone plug for the insertional ligaments, plus sutures. Finally, the pressure, when the allograft was secured by sutures alone, was measured. The peak pressure rose significantly after meniscectomy, and then was reduced significantly by both allograft methods so that it was not significantly different to normal. Allografts fixed by sutures only allowed slightly higher contact pressure than when they had bone fixation. This study suggests that meniscal allografting should have a chondroprotective effect and that there is a small advantage from adding bony fixation to suture fixation.
ISSN:0942-2056
1433-7347
DOI:10.1007/s00167-008-0503-4