Knee MRI Mastery/Chap 2.ACL and PCL 썸네일형 리스트형 (Fig 2-E.32) Graft Tear In PCL Reconstruction: killer turn of the tibial tunnel opening. https://youtu.be/Cd99fDQ6qSAhttps://youtu.be/UgiSgNcqguA1️⃣ Understanding the "Killer Turn" in PCL ReconstructionThe term "killer turn" in posterior cruciate ligament (PCL) surgery describes the sharp, stressful bend that the PCL graft undergoes at the tibial tunnel aperture. This is not a smooth curve but an abrupt angle that can lead to increased graft tension, abrasion, and eventual failure. .. 더보기 (Fig 2-E.31) Graft Tear In PCL Reconstruction and Arthrofibrosis https://youtu.be/LGExBkGbODAhttps://youtu.be/UgiSgNcqguAPost-PCL Reconstruction Complications① Recurrent instabilityRecurrent instability is a common complication, possibly due to graft tear/stretching, impingement, or malpositioned tunnels.Graft tears may occur due to new injury or chronic impingement from suboptimal tunnel positioning.MRI signs of graft tear are similar to ACL but have lower s.. 더보기 (Fig 2-E.30) Double-bundle PCL reconstruction, Femoral Tunnel Placement https://youtu.be/o7Nvom0S23Qhttps://youtu.be/UgiSgNcqguA✅ Double-Bundle PCL ReconstructionThe double-bundle technique aims better to mimic native PCL for improved posterior stability in flexionBiomechanical studies show superior knee laxity and kinematics restoration compared to single-bundle Potential for excessively restricted residual anteroposterior translationNo significant differences in c.. 더보기 (Fig 2-E.29) Femoral Tunnel Placement of PCL Reconstruction https://youtu.be/s1cezFjtZaYhttps://youtu.be/UgiSgNcqguA✅ Posterior Cruciate Ligament (PCL) Reconstruction: Single Bundle Technique1. Anatomy of the PCL Bundles:The anterolateral bundle arises anteriorly from the lateral margin of the medial femoral condyle and extends up to the roof of the intercondylar notch.The posteromedial bundle attaches slightly more medially and posterior to the anterola.. 더보기 (Fig 2-E.28) PCL Graft Ligamentization https://youtu.be/oQaqeFP_78ohttps://youtu.be/UgiSgNcqguAPCL graft ligamentization is the process of remodeling and revascularization that a tendon graft undergoes after being used for posterior cruciate ligament (PCL) reconstruction surgery. This process can be divided into three phases:1.Early phase (0-3 months):The graft is avascular (no blood supply)It appears hypointense (dark) on all MRI se.. 더보기 (Fig 2-E.27) Treatment of Acute Avulsion Fracture of PCL https://youtu.be/_rcYruLO4Mohttps://youtu.be/UgiSgNcqguAPCL tears typically do not occur alone and are most often associated with multiligamentous knee injuries.✅ Treatment StrategiesHistorically, treatments have ranged from ligament reconstruction to primary repair. Recently, arthroscopic primary PCL repair has emerged as a favorable option due to its minimally invasive nature. This technique p.. 더보기 (Fig 2-E.26) PCL Repair https://youtu.be/vsxJzmhoV30 https://youtu.be/UgiSgNcqguA✅ ACL RepairThe ACL often requires reconstruction due to its poor healing capacity after complete tears. However, when the ACL is intact with an associated tibial eminence avulsion fracture, primary repair by reattaching the bone fragment is possible and usually successful. This method applies to avulsion fractures at both the femoral and .. 더보기 (Fig 2-E.25) Multiligamentous Injuries Associated with PCL Injuries https://youtu.be/QYpA6UeK6oohttps://youtu.be/UgiSgNcqguA📌Common Associated Injuries with Posterior Cruciate Ligament (PCL) Injury1️⃣ Posterolateral Corner Injuries: Up to 73% of PCL injuries involve damage to the posterolateral corner structures, such as the lateral collateral ligament, popliteus muscle, popliteofibular ligament, biceps femoris muscle, arcuate ligament, and fabellofibular ligam.. 더보기 이전 1 2 3 4 ··· 13 다음
