This 1980 cadaveric study by Fukubayashi and Kurosawa quantified how menisci distribute load across the tibiofemoral joint. Using casting and pressure-sensor methods on 7 freshly amputated knees, they measured contact area and peak pressure before and after meniscal removal at 0° flexion under loads up to 1500N. The study provided the first direct biomechanical measurements explaining why total meniscectomy leads to osteoarthritis.
Meniscal tears were once routinely treated with total meniscectomy — Fairbank's 1948 observations raised concern about long-term consequences, but the mechanism was unmeasured. Fukubayashi and Kurosawa put exact numbers to the problem: remove the meniscus and you halve the contact area while doubling cartilage stress.
When you have a patient with a meniscal tear, reach for repair or partial resection before total meniscectomy. The pressure doubles on the cartilage that is already first to degenerate. You are directly accelerating the path to arthritis.
The lateral meniscus deserves particular attention: it bears a proportionally larger load in its compartment and has less peripheral attachment, making it biomechanically critical and technically distinct to repair.
In the patient with advanced OA and a concurrent meniscal tear, the calculus shifts. By that stage the meniscus has already lost much of its load-transmitting role, and aggressive meniscal preservation yields less biomechanical benefit than in a younger, intact knee.
This 1980 cadaveric study by Fukubayashi and Kurosawa quantified how menisci distribute load across the tibiofemoral joint. Using casting and pressure-sensor methods on 7 freshly amputated knees, they measured contact area and peak pressure before and after meniscal removal at 0° flexion under loads up to 1500N. The study provided the first direct biomechanical measurements explaining why total meniscectomy leads to osteoarthritis.
Meniscal tears were once routinely treated with total meniscectomy — Fairbank's 1948 observations raised concern about long-term consequences, but the mechanism was unmeasured. Fukubayashi and Kurosawa put exact numbers to the problem: remove the meniscus and you halve the contact area while doubling cartilage stress.
When you have a patient with a meniscal tear, reach for repair or partial resection before total meniscectomy. The pressure doubles on the cartilage that is already first to degenerate. You are directly accelerating the path to arthritis.
The lateral meniscus deserves particular attention: it bears a proportionally larger load in its compartment and has less peripheral attachment, making it biomechanically critical and technically distinct to repair.
In the patient with advanced OA and a concurrent meniscal tear, the calculus shifts. By that stage the meniscus has already lost much of its load-transmitting role, and aggressive meniscal preservation yields less biomechanical benefit than in a younger, intact knee.