Spine I Please enable JavaScript in your browser to complete this form.Please enable JavaScript in your browser to complete this form.Question 1) A 33-year-old patient presents with 3 weeks of right lower extremity pain. MRI is shown in Figures A and B. Which muscle group is mostly likely to be affected?Spine Question 1) Figure A and B Select the Correct AnswerQuadricepsHamstringsIliopsoasGastrocsoleus Complex (GSC)Extensor Hallucis Longus (EHL)Correct Answer: Gastrocsoleus complex Explanation: This patient has a right paracentral L5-S1 disc herniation. Lumbar disc herniations: lumbar nerve root exits below corresponding pedicle. Central & paracentral: impinges traversing (lower) nerve root. Foraminal & extraforaminal: impinges exiting (upper) nerve root. Cervical disc herniations: cervical nerve root exits above corresponding pedicle. All cervical disc herniation types affect same nerve root References: Source: Le HV, Tsai C, Lee SJ, Chien BY, Lipa SA, Qudsi RA, Suneja N, Dyer GSM. High-Yield Orthopaedics: OITE & ABOS Review for Orthopaedic Providers [Kindle]. Seattle, WA: Kindle Direct Publishing; 2019. Surgery Vs Non-Operative Treatment for Lumbar Disk Herniation: The Spine Patient Outcomes Research Trial: A Randomized Trial" JAMA 296(20):2441-2450, 2006. "Surgery Vs Non-Operative Treatment for Lumbar Disk Herniation: The Spine Patient Outcomes Research Trial Observational Cohort" JAMA 296(20):2451-2459, 2006. "Surgery Vs Non-Operative Treatment for Lumbar Disk Herniation: Four-Year Results from the Spine Patient Outcomes Research Trial (SPORT)" Spine 33(25):2789-2800, 2008. "Surgical versus Non-Operative Treatment for Lumbar Disk Herniation: Eight-year Results for the Spine Patient Outcomes Research Trial (SPORT)" Spine 39(1):3-16, 2014. Wrong Answer: Please try again! Submit Post navigation Previous QuestionTumor IIINext QuestionSpine II