Lower Extremity: Hip Complex - Posterior Hip
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Questions and Answers

Which structure is located lateral to the femoral artery?

  • Femoral vein
  • Gracilis
  • Iliopsoas
  • Femoral nerve (correct)
  • What is the main muscle forming the base of the lateral femoral triangle?

  • Rectus femoris (correct)
  • Sartorius
  • Iliopsoas
  • Tensor fascia lata
  • How can the position of the iliopsoas be confirmed?

  • By palpating during hip flexion (correct)
  • By asking the patient to extend the knee
  • By observing the foot's dorsiflexion
  • By locating lateral to the femoral nerve
  • What is noted when palpating the AIIS?

    <p>It is located distal to the ASIS</p> Signup and view all the answers

    What action can be performed to locate the tensor fascia lata?

    <p>Flex the hip while abducting and internally rotating</p> Signup and view all the answers

    Which muscle serves as the medial leg of the lateral femoral triangle?

    <p>Sartorius</p> Signup and view all the answers

    What is the proper technique to feel for the femoral artery?

    <p>With pads of fingers while avoiding clothing</p> Signup and view all the answers

    How is the gracilis muscle's reaction described when the heel is dug in?

    <p>It contracts and tightens up</p> Signup and view all the answers

    What defines the base of the medial femoral triangle?

    <p>Inguinal ligament</p> Signup and view all the answers

    Which muscle is located laterally in the medial femoral triangle?

    <p>Sartorius</p> Signup and view all the answers

    To palpate the pubic tubercle, where should you start?

    <p>At the umbilicus</p> Signup and view all the answers

    Which maneuver helps locate the adductor longus?

    <p>Isometric hip adduction</p> Signup and view all the answers

    Where does the gracilis muscle attach?

    <p>Inferior ramus of the pubis</p> Signup and view all the answers

    How can one differentiate between the adductor longus and the gracilis?

    <p>By performing isometric hip abduction and knee flexion</p> Signup and view all the answers

    What is the shape of the inguinal ligament as it runs from the ASIS to the pubic tubercle?

    <p>Thicker at ASIS and thinner towards the pubic tubercle</p> Signup and view all the answers

    Which muscle helps in identifying the lateral border of the medial femoral triangle when providing resistance?

    <p>Sartorius muscle</p> Signup and view all the answers

    What is the significance of drawing a dashed line from the inferior part of the PSIS?

    <p>It represents the level of S2.</p> Signup and view all the answers

    What confirms the identification of the greater trochanter during palpation?

    <p>The ability to produce passive internal and external rotation of the femur.</p> Signup and view all the answers

    Where does the sciatic nerve exit in relation to the lines drawn during palpation?

    <p>At the point dividing the medial and middle 1/3 of line C.</p> Signup and view all the answers

    How should one locate the piriformis muscle during palpation?

    <p>By locating the midpoint of line A and line B.</p> Signup and view all the answers

    Which structure is palpated at the medial aspect of the gluteal fold?

    <p>Ischial tuberosity.</p> Signup and view all the answers

    What is the specific role of the hamstring muscle group in relation to the ischial tuberosity?

    <p>They attach on the proximal lateral border of the ischial tuberosity.</p> Signup and view all the answers

    What is the characteristic feature of the piriformis muscle attachment?

    <p>It attaches to the anterior aspect of the sacrum.</p> Signup and view all the answers

    Which line represents the communication between the midpoint of the PSIS and the sacral hiatus?

    <p>Line A.</p> Signup and view all the answers

    What should be done to confirm the location of the greater trochanter during palpation?

    <p>Passively flex the knee to 90 degrees and rotate the femur.</p> Signup and view all the answers

    Which anatomical structure is identified as a bony prominence on palpation of the lower extremity?

    <p>PSIS.</p> Signup and view all the answers

    Study Notes

    Lower Extremity: Hip Complex - Posterior Hip

    • Palpate the PSIS (Posterior Superior Iliac Spine) and sacral hiatus.
    • Start laterally and cranially on the iliac crest, moving inferiorly to identify the PSIS.
    • Track the iliac crest's downward curve to the PSIS.
    • Draw a line from the PSIS midpoint to the sacral hiatus, labeling this line "A". Divide line A into thirds.
    • Palpate for the sacral hiatus, then the sacral horns (cornua sacralis).
    • The S2 spinal process is variable in size, use your finger to find it. Follow the midline to the sacral hiatus.
    • Palpate the greater trochanter.
    • Locate the iliac crest midpoint, and palpate inferiorly for the greater trochanter.
    • Confirm location by passively flexing the knee to 90 degrees and rotating the femur. If on the trochanter, you will feel the bone movement.
    • Draw a line from the greater trochanter's cranial aspect midpoint to the PSIS midpoint, labeling this line "B". Dividing line B into thirds.
    • Draw another line from the cranial aspect of the greater trochanter to the anterior 2/3 of line A, labeling this line "C". Divide line C into thirds.
    • The triangle formed by the upper two thirds of line A, line B, and line C represent the location of the piriformis muscle.

    Lower Extremity: Hip Complex - Medial Femoral Triangle

    • Borders:
      • Base: Inguinal ligament
      • Lateral: Sartorius
      • Medial: Adductor longus
    • Locate the ASIS (Anterior Superior Iliac Spine) by palpating the iliac crest, moving from posterior lateral to anterior medial until you encounter a bony prominence.
    • Palpate from the umbilicus caudally to locate the pubic tubercle.
    • The inguinal ligament runs between the pubic tubercle and ASIS, thicker at the ASIS and thinner towards the pubic tubercle.
    • Identify the sartorius muscle, forming the lateral leg of the medial femoral triangle.

    Lower Extremity: Hip Complex - Lateral Femoral Triangle

    • Borders:
      • Base: Rectus femoris
      • Lateral: Tensor fascia lata (TFL)
      • Medial: Sartorius
    • Location the Tensor fascia lata (TFL) which is the lateral leg of the triangle.
    • Find the ASIS (Anterior Superior Iliac Spine) and find the internal rotation from posterior to superior of the greater trochanter.
    • Locate the rectus femoris, which forms the floor of the triangle
    • Ask the patient to extend their knee and locate to the Attachment of rectus femoris at the AIIS (anterior inferior iliac spine.)

    Lower Extremity: Hip Complex - Gluteal Fold

    • Palpate the ischial tuberosity in the region of the gluteal fold.
    • Note the relationship of the ischial tuberosity to the greater trochanter.
    • The hamstrings (except the short head of the biceps femoris) attach to the proximal lateral border of the ischial tuberosity.

    Lower Extremity: Hip Complex - Hip Adductors

    • Adductor longus:
      • Palpate the tendon and muscle at the pubic tubercle while the patient performs isometric hip adduction.

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    Description

    This quiz focuses on palpation techniques for the hip complex, specifically the posterior hip. It includes steps to identify and locate key anatomical landmarks such as the PSIS and greater trochanter. Enhance your understanding of anatomy through practical palpation exercises.

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