Internal pressure of human meniscal root attachments during loading

ABSTRACT This study investigated the internal fluid pressure of human cadaver meniscal root attachments. A pressure micro‐sensor was implanted inside each attachment site. Tibiofemoral joints were compressed to 2× body weight at various flexion angles and pressure recorded for 20 min. The anterior c...

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Bibliographic Details
Published in:Journal of orthopaedic research 2013-10, Vol.31 (10), p.1507-1513
Main Authors: Abraham, Adam C., Villegas, Diego F., Kaufman, Kenton R., Haut Donahue, Tammy L.
Format: Article
Language:English
Subjects:
Adult
anterior cruciate ligament
Biomechanical Phenomena - physiology
Body Fluids - physiology
Cadaver
enthesis
Femur - physiology
Humans
joint mechanics
Knee Joint - physiology
Menisci, Tibial - physiology
meniscus
Middle Aged
Optical Fibers
Pressure
Range of Motion, Articular - physiology
Tibia - physiology
Weight-Bearing - physiology
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Summary:ABSTRACT This study investigated the internal fluid pressure of human cadaver meniscal root attachments. A pressure micro‐sensor was implanted inside each attachment site. Tibiofemoral joints were compressed to 2× body weight at various flexion angles and pressure recorded for 20 min. The anterior cruciate ligament (ACL) was then transected and joints retested. Lastly, a longitudinal incision of the lateral posterior (LP) horn was made and the joint retested. Ramp pressure was defined as the pressure when 2× body weight was reached, and equilibrium pressure was recorded at the end of the hold period. The medial posterior (MP) attachment was subjected to greater ramp pressure than the medial anterior (p = 0.002) and greater equilibrium pressure than all other root attachment sites (p 
ISSN:0736-0266
1554-527X
DOI:10.1002/jor.22408