Knee A to Z

Triple varus is a bow leg deformity where varus bowing of the knees increases on standing and also the knees tend to go backward.

The trochlea is the groove of the femur at the knee joint, where the patella runs. Page updated May 2024 by Dr Sheila Strover (Clinical Editor)

Trochlear dysplasia is a condition of the knee where the  trochlear groove is abnormal, usually at its upper end where it is abnormally flat or even heaped into a 'bump'. Page updated May 2024 by Dr Sheila Strover (Clinical Editor)

The trochlear groove is the concave surface where the patella (kneecap) makes contact with the femur (thighbone). Also called the 'trochlea'. Page updated March 2024 by Dr Sheila Strover (Clinical Editor)

A trochlear implant in the knee is a metal resurfacing of the groove of the trochlea to replace damaged joint cartilage there. Page updated May 2024 by Dr Sheila Strover (Clinical Editor)

A trochleoplasty is a surgical procedure to re-shape the walls of the trochlear groove to improve patellar stability. Page updated June 2024 by Dr Sheila Strover (Clinical Editor)

Trunk extension is a rehabilitation exercise to strengthen the lower back.

The TT-PCL distance is an MRI measurement of the distance from the tibial tubercle to the posterior cruciate ligament, and calculated in the evaluation of kneecap instability.

TTT is an abbreviation of 'tibial tuberosity transfer' which is a surgical procedure to improve kneecap stability.

TT-TG distance is a measurement, derived from CT or MRI scans, which gives an indication of the sideways alignment of the groove in which the kneecap slides compared to the attachment point of its tendon on the tibia. Page updated May 2024 by Dr Sheila Strover (Clinical Editor)