A 45-year-old male presents with right knee pain after he pivoted and felt a “pop” while making a move playing pickup basketball. You obtain knee x-rays and see a lateral irregularity in the AP view (photo courtesy of Dr. Gerry Gardner at Radiopaedia.org).
What is the most likely diagnosis, commonly associated injury, and appropriate management plan?
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References:
- Goldman AB, Pavlov H, Rubenstein D. The Segond fracture of the proximal tibia: a small avulsion that reflects major ligamentous damage. AJR Am J Roentgenol. 1988;151(6):1163-1167. PMID: 3263770
- Huang GS, Yu JS, Munshi M et-al. Avulsion fracture of the head of the fibula (the “arcuate” sign): MR imaging findings predictive of injuries to the posterolateral ligaments and posterior cruciate ligament. Am J Roentgenol. 2003;180(2):381-387. PMID: 12540438
- Gottsegen CJ, Eyer BA, White EA et al. Avulsion fractures of the knee: Imaging findings and clinical significance. Radiographics.2008;28(6):1755-1770. PMID: 18936034
- Roberts CC, Towers JD, Spangehl MJ et-al. Advanced MR imaging of the cruciate ligaments. Radiol. Clin. North Am. 2007;45(6):1003-16, vi-vii. PMID: 17981180
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