Gluteal Region

1.A 15-year-old boy came with Altered Gait to the OPD after intramuscular Injection in the right buttock. On examination, he was found to be having Foot drop on the right side.

• a) Based on the above case what is the Anatomical reason for the Boy’s condition
• b) Describe the origin, insertion and Nerve supply of Gluteus maximus
• c) What are structures under the cover of Gluteus maximus
• d) Anatomical basis of Trendelenburg sign

2.A 12-year-old boy following an inadvertent intramuscular injection in the gluteal region developed certain neurological deficits including difficulty to dorsiflex the foot. With your knowledge of Anatomy answer the following questions: • Mention briefly the structures under cover of gluteus maximus. • Name the structure which is affected in this case. Give its origin, course and distribution in thigh. • Give the cutaneuous innervations of lower limb below knee. • Name the muscles responsible for dorsiflexion and eversion of the foot

1.Gluteus maximus muscle

2.Nerve supply and action of Gluteus Medius

3.Structures under gluteus maximus

1.Piriformis

2.Greater sciatic forarmen

1.Assertion: While performing the Trendelenburg test, tilt of the pelvis is observed

• Reason: It tests the integrity of gluteus maximus
• a) Both A and R are true, and R is the reason for A
• b) Both A and R are true, and R is not the reason for A
• c) A is correct but R is incorrect
• d) A is incorrect but R is correct

2.A: Superolateral quadrant of gluteal region is a safe site for intramuscular injection R: Injection into the medial quadrants will endanger important nerves and vessels

• a) Both A and R are true and R is the reason for A
• b) Both A and R are true and R is not the reason for A
• c) A is correct but B is incorrect
• d) A is incorrect but R is correct

3.Branches arising from the posterior division of internal iliac artery are

• 1) Internal pudendal 2) Iliolumbar
• 3) Lateral sacral
• 4) Superior gluteal
• a) 2, 4
• b) 1, 2, 3
• c) 1, 3
• d) 2, 3, 4

4.Muscles inserted into the iliotibial tract are

• 1) Biceps femoris
• 2) Tensor fascia lata 3) Gluteus medius
• 4) Gluteus maximus
• a) 1, 3
• b) 2, 3, 4
• c) 2, 4
• d) 1, 2, 3