Increased External Tibial Torsion and Osteochondritis Dissecans of the Knee

Limited rotation of the mobile-bearing in a rotating platform total knee prosthesis

“…When the location of the pivot point is fixed like in rotating platform designs and the pivot point does not coincide with the actual tibiofemoral rotation point, torsion forces at the cam-bearing articulation will even result into an increase of wear and/or polyethylene on metal impingement. Additional torsion forces might occur when the mobile-bearing tibial component is placed in internal rotation in combination with an anatomic tibial exotorsion (Bramer et al, 2004). The maximum allowed motion of the mobile-bearing insert is than limited by the anterior rotational stop.…”

Femoral Version and Tibial Torsion are Not Associated With Hip or Knee Arthritis in a Large Osteological Collection

“…Although numerous bony landmarks have been used to quantify tibial rotation radiographically, the midpoint of the tibial plateau surfaces and the anterior tibial plafond were chosen given their high interrelator reliabilities in previous studies, and ease of use in an osteological setup. [7][8][9][10][11][12][13][14][15] Tibial torsion in the internal direction was defined as increased tibial torsion.…”

Relationship between tibial spine size and the occurrence of osteochondritis dissecans: an argument in favour of the impingement theory

“…These include mechanical, vascular, genetic and inflammatory causes, along with ossification disorders [2,4,9,13,19,20,26]. But none of these theories is universally accepted [13,14,17].…”