On physical exam, a positive Ludloff sign helps localize the injury to the iliopsoas muscle, which inserts at the lesser trochanter
and is involved in hip flexion.
The intracortical and extracortical dimensions of the cross-sections were generally bigger in KD than it were in GSD except that the medio-lateral dimensions at the isthmus and at the mid-shaft, the intracortical width of midshaft in cranio-caudal direction and extracortical width the lesser trochanter
level in the medio-lateral direction (Table 1).
Plain radiographs are often negative but may reveal sclerosis or cystic changes within the lesser trochanter
or ischium, decreased femoral offset, or bony prominences from ischial avulsion injury or multiple hereditary exostoses.
Also, the pattern of fracture in our case does lend itself to compression despite being vertical in orientation because the femoral neck changes its orientation from horizontal to semi-vertical as we approach the inferior part of fracture in the lesser trochanter
Acting from its insertion at the lesser trochanter
of the femur, it flexes the trunk, such as when rising from a supine position.
The evaluation criteria for the AP pelvis with internal rotation requires demonstration of the femoral necks in their full extent without anteversion, the greater trochanters demonstrated equidistant to the edge of the film and, if seen, the lesser trochanters
should be demonstrated on the medial border of the femurs.
the distance from most prominent point on the lateral surface of greater trochanter to the tip of lesser trochanter
Osteotomy through the lesser trochanter
for slipped capital femoral epiphysis.
sup] Injury from a bone spike may occur at the time of initial trauma, during reduction or postoperatively during mobilization and may involve a lesser trochanter
fragment, which can migrate with the movement of the hip owing to the function of the attached iliopsoas muscle.
Inferior capsule is released in order to place a retractor medial to the femur at the level of the lesser trochanter
We performed femoral neck osteotomy in the area of the lesser trochanter
because of the valgus deformity of the proximal femur, the expansion of the cervical diameter, and the medial osseous projection.
4) The proximal end of femur is club-shaped and the lesser trochanter
is prominent and down facing.