The tibial tuberosity is the bony lump on the shin below the kneecap (patella) where the patellar tendon attaches. It is also called the tibial tubercle.

tibial tuberosity or tubercle    
Traction on the patellar tendon will affect the tibial tuberosity.    

 

Why is the tibial tuberosity sometimes problematic?

The tibial tuberosity develops separately from the main tibia bone, and has its own growth plate. This growth plate closes after puberty. In young people who do a lot of jumping sport, there may be traction on the growth plate (osgood Schlatter's disorder) or the bone may fracture there. There are also various alignment disorders of the several elements of the chain that allows the knee to extend (quads, patella, patellar groove), and this may also cause stress on the tibial tuberosity.

Synonyms: 
Tibial tubercle
-

How TT-TG Distance is measured, and what it means to the patient with patellar instability.

Dr Lars Blønd discusses a case of a patient who had had Osgood Schlatters' disorder as a child, but continued to be symptomatic into adulthood.

Distal realignment procedures

Realigning the kneecap by surgical procedures below the kneecap.

Surgery for patellar malalignment

Part 8 of a course on Patellofemoral Pain by Dr Ronald Grelsamer of Mount Sinai Hospital in New York.

-

CLINICAL PUBLICATIONS

Factors Affecting Tibial Tuberosity-Trochlear Groove Distance in Recurrent Patellar Dislocation Prakash J, Seon J-K, Ahn H-W, Kyu-Jin Cho, Im C-J and Song EK. Clin Orthop Surg. 2018 Dec; 10(4): 420–426.

Tibial Tuberosity Osteotomy for Patellofemoral Realignment Alters Tibiofemoral Kinematics Mani S, Kirkpatrick MS, Saranathan A, Smith LG, Cosgarea AJ and Elias JJ. Am J Sports Med. 2011 May; 39(5): 1024–1031.


See also -