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A 30 year old patient is referred to you complaining of 5 months of activity-related hip pain. It has not improved after a brief period of rest followed by 2 months of physical therapy. Her primary physician ordered an MRI which shows an anterolateral labral tear. Which of the following pre-surgical factors is a general contraindication for hip arthroscopy?
Alpha angle of 60 degrees
Femoral head-neck offset ratio of 0.2
Tönnis angle of 5 degrees
Tönnis grade 3
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The zona orbicularis is the arthroscopic landmark for access to which of the following structures?
Complications from hip arthroscopy are most commonly related to which of the following?
Use of traction
Deep venous thrombosis
During hip arthroscopy, the sciatic nerve is most at risk with which of the following portal techniques?
Anterior peritrochanteric portal with limb in internal rotation
Anterior peritrochanteric portal with limb in flexion
Posterior peritrochanteric portal with limb in internal rotation
Posterior peritrochanteric portal with limb in external rotation
Distal lateral portal with limb in neutral rotation
A 29-year-old male undergeoes hip arthroscopy using the three portals shown in Figure A. Postoperatively he develops numbness in the distribution shown in yellow. This complication was most likely caused by which of the following?
Injury to the Pudendal nerve from Portal A
Injury to the Femoral nerve from Portal B
Injury to the Lateral Femoral Cutaneous Nerve from Portal A
Injury to the Common Peroneal nerve from Portal C
Injury to the a sensory branches of the sciatic nerve from Portal B