A predisposing factor is tightness in the tensor fasciae latae muscle and iliotibial tract in combination with a quadriceps imbalance between the vastus lateralis and vastus medialis muscles can play a large role, found, mainly, in women with higher level the physical activity. Moreover, women with patellofemoral pain may show increased Q-angle compared with women without patellofemoral pain. Another cause of<unk>  symptoms is lateral<unk>  compression syndrome, which can be caused from lack of balance or inflammation in the joints. The pathophysiology of the kneecap is complex, and deals with the osseous soft tissue or abnormalities within the patellofemoral groove. The<unk>  symptoms cause knee extensor dysplasia, and sensitive small variations affect the muscular mechanism that controls the joint movements. 24% of people whose<unk>  have dislocated have relatives who have experienced<unk> s. Athletic population<unk>  occurs in sports that involve rotating the knee. Direct trauma to the knee can knock the<unk> out of joint. Anatomical factors People who have larger Q angles tend to be more prone to having knee injuries such as dislocations, due to the central line of pull found in the quadriceps muscles that run from the anterior superior iliac spine to the center of the<unk>  The range of a normal Q angle for men ranges from <15 degrees and for females <20 degrees, putting females at a higher risk for this injury. An angle greater than 25 degrees between the<unk>  tendon and quadriceps muscle can predispose a person to<unk> . In<unk> alta, the<unk> sits higher on the knee than normal. Normal function of the VMO muscle stabilizes the<unk>  Decreased VMO function results in instability of the<unk>  Forces When there is too much tension on the<unk>  the ligaments will weaken and be susceptible to tearing ligaments or tendons due to shear force or torsion force, which then displaces the kneecap from its origination. Another cause that<unk>  can occur is when the trochlear groove that has been completely flattened is defined as trochlear dysplasia. Not having a groove because the trochlear bone has flattened out can cause the<unk> to slide because nothing is holding the<unk> in place.
Patellar dislocation
Patellar tendon rupture
Patella fracture
Knee dislocation  Knee dislocation  1
Knee dislocation
Acetabular fracture
Hip dislocation
Humerus fracture