A Morphometric Analysis of Tibial Tuberosity in Northeast population of India

ABSTRACT

The tibial tuberosity is a bony landmark located at the proximal end of the tibia. The tibial tuberosity can rang from a slight elevation to a more prominence that begins around 2cm below the anterior margin of the tibial plateau. Avulsion fractures, which occur when soft tissue separates from the bone, can occur in various parts of the body. In the case of tibial tuberosity avulsion fractures, they typically affect adolescent males, resulting from the bony insertion of the patellar tendon being pulled away due to a sudden and forceful contraction of the quadriceps muscles. Consequently, this type of fracture is more commonly observed in males. The ligamentum patellae may attach to the upper smooth part of the patella and its adjoining margins, or it may be connected to the lower rough area, with some fibers extending to the lower rough part of the tibial tuberosity. Avulsion fractures can occur at any soft tissue attachment point on the bone. In most cases, the failure of the bone is the result of either a sudden, tensile force applied to the bone through the soft tissue or chronic repetitive avulsive stresses causing a piece of bone to be pulled away by the soft tissue. Tibial tuberosity avulsion fractures typically occur in adolescent males due to the avulsion of the bony insertion of the patellar tendon, which is caused by sudden violent contraction of the quadriceps muscles. As a result, this type of fracture is more commonly found in males. The mean tuberosity distance from the joint surface was 29.2mm (SD 3.5, range 16.6-38.6mm) and was larger in males than females (30.7mm (SD 2.9) vs. 27.6mm (SD 3.3); p<0.001). Furthermore, the tuberosity distance from the joint surface increased by an average of 0.18mm per 1.0cm increase in height (p<0.001).

Keyword: Tibial tuberosity, Ligamentum Patellae, Screw size, Tensile force, Bone etc.