Flashcards in Gluteal region and Posterior Thigh (Lect) Deck (51)
What muscles act to stabilize the head of the femur in the acetabulum?
Superior and inferior gemellus, quadratus femoris, obturator internis
Where is the weak area for anterior dislocation?
between iliofemoral and pubofemoral ligaments
Where is the weak spot for posterior dislocation?
between iliofemoral and ischiofemoral ligaments
What is the position of the leg if it has been posteriorly dislocated?
What is the orientation of the leg if it has undergone anterior dislocation?
What is the primary opposing muscle to illiopsoas?
T or F: the gluteus maximus helps keep tension in the iliotibial tract?
False, this is a major job of tensor fascia lata
What is illiotibial band syndrome?
Occurs when IT band is inflamed
Causes pain in lateral knee and hip
common in long-distance runners, bicyclists, and other athletes
Whose fibers can be seen deep to the gluteal aponeurosis?
What is the job of the anterior fibers of gluteaus medius and minimus?
Medial rotation of femur
What is the name of the gait that accompanies the tendelenburg sign?
Where do most of the lateral rotators insert?
on the medial aspect of the greater trochanter
(except for quadratus femoris = quadrate tubercle)
What muscle passes through the greater sciatic foramen?
What muscles passes through the lesser sciatic foramen?
What passes through the greater sciatic notch?
Superior Gluteal n. a. v.
Pudendal n. and Internal pudendal a. v.
Inferior gluteal n. a. v.
Nerve to obturator internus, quatratus femoris, piriformis
and Posterior Femoral Cutaneous N.
What goes through the lesser sciatic foramen?
Pudendal Nerve (medial)
Internal Pudendal Vessels
Nerve to Obturator Internus (lateral)
What is the job of the structures that emerge superiorly from piriformis?
gluteus minimus and medius
Stabilization of Hip
Tensor fascia Lata
Knee stabilization in ext.
Where do all the nerves in the gluteal region originate?
The sacral plexus and lumbosacral trunk
What cutaneous nerve emerges medially to the sciatic?
posterior femoral cutaneous n.
What nerve is directly deep to the sciatic?
N. to quadratus femoris
What nerves are at risk in gluteal injections?
sciatic nerve, inferior gluteal, inferior gluteal
What deficits would result from damage to the sciatic N in a gluteal injection?
deficits in hip extension, leg flexion, and movements of the ankle and toes
What deficits might result from damage to the inferior gluteal N?
deficits in hip extension, lateral rotation, loss of tension in iliotibial tract (reducing knee stability)
What deficits might result from damage to the superior gluteal n.?
deficits in abduction, medial rotation of the hip, loss of stability of the pelvis when walking
Where is the safe zone for gluteal injections?
upper lateral quadrant
What is piriformis syndrome?
Presses the sciatic n. when it becomes inflammed as a result of a fall or be overworked through activity
Where would pain be felt in piriformis syndrome?
in the butt at piriformis, and around the sciatic N.
What is isthmic spondylolisthesis?
lamina (usually of L5) breaks and the vertebra slides forward pinching the L5 nerve
What is a symptom of compression of the cauda equina via a ruptured disk?
pain emanating from parts of the bottock, thigh, leg, and foot served by the individual nerves involved