USMLE Forum Archives - USMLE Step 3 - in the ER..
in the ER..
bingousmle - 06-18-10 06:42
A 22-year-old college football player presents to the ED with knee pain. He states that during the football game today, he received a direct blow to the lateral aspect of his knee. Radiograph of the knee is negative for fracture, but shows an effusion. On examination, you confirm the hemarthrosis. As you examine his knee ligaments, you note joint instability
with valgus stress in 30 degrees of flexion. The rest of your examination isunremarkable. This patient’s injury is most consistent with?
a. Rupture of the LCL
b. Rupture of the MCL
c. Rupture of the ACL
d. Rupture of the PCL
e. Tear of the medial meniscus
bingousmle - 06-18-10 06:42
A 22-year-old college football player presents to the ED with knee pain. He states that during the football game today, he received a direct blow to the lateral aspect of his knee. Radiograph of the knee is negative for fracture, but shows an effusion. On examination, you confirm the hemarthrosis. As you examine his knee ligaments, you note joint instability
with valgus stress in 30 degrees of flexion. The rest of your examination isunremarkable. This patient’s injury is most consistent with?
a. Rupture of the LCL
b. Rupture of the MCL
c. Rupture of the ACL
d. Rupture of the PCL
e. Tear of the medial meniscus
The correct answer and explanation will be available after you answer.
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#3
Re: in the ER.. babbu5508 - 06-18-10 14:36 My answer is: b.
The most common symptom following a medial collateral ligament injury is pain directly over the ligament. Swelling over the torn ligament may appear, and bruising and generalized joint swelling are common 1 to 2 days after the injury.
#19
Re: in the ER.. mockingbird - 06-30-11 12:54 My answer is: b.
Valgus deformity proves that patient has rupture of Medial Collateral Ligament.
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