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Review Question - QID 470

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QID 470 (Type "470" in App Search)
A 15-year-old male complains of pain and swelling of the right knee immediately after landing a ski jump. Radiographs are shown in Figure A. Which of the following potential concomitant diagnosis should be particularly observed for with this injury pattern?
  • A

Concurrent ACL disruption

12%

296/2532

Compartment syndrome

82%

2071/2532

Popliteal artery disruption

2%

57/2532

Quadriceps tendon tear

2%

46/2532

Patella baja

2%

50/2532

  • A

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Radiographs show a type III tibial tubercle avulsion fracture. Anterior compartment syndrome is at risk as anterior tibial recurrent artery may be disrupted. Meniscal tears have been reported in this population as well.

The referenced article by Pape et al reports tibial tubercle fractures to be uncommon physeal fractures that are predisposed to anterior compartment syndrome due to the proximity of the anterior tibial recurrent artery. Mosier reviews 19 tibial tubercle physeal fractures finding the fracture to occur in athletic participation 77% of the time specifically with an eccentric quadriceps contraction during flexion of the knee. Fifteen of the 19 fractures were treated with open reduction and all had good outcomes.

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