(Fig 2-D.19) Tibial Tunnel Enlargement Caused By Ganglion Cyst скачать в хорошем качестве

(Fig 2-D.19) Tibial Tunnel Enlargement Caused By Ganglion Cyst

👉 Click the link below and request access—I’ll approve it for you shortly! https://www.notion.so/MSKMRI-KNEE-b6c... ============================================== ✨ Join the channel to enjoy the benefits! 🚀    / @mskmri   ============================================== 👉 "Click the link to purchase on Amazon 🎉📚" [Visualizing MSK Radiology: A Practical Guide to Radiology Mastery] https://www.amazon.com/dp/B0DJGMHMFS ============================================== Tunnel Widening in ACL Reconstruction 1️⃣ Definition and Indicators of Tunnel Widening Tunnel widening is identified as a postoperative enlargement greater than 2 mm on antero-posterior or lateral radiographs, a change that raises suspicion when observed in the parallel walls of a cone-shaped tunnel. This phenomenon is primarily cavitary and often peaks in the mid-zone of the tibial tunnel, occurring in the joint's plane of movement (Korean J Radiol 2016;17(6):919-930). 2️⃣ Causes of Tunnel Widening Micromotion at the graft-native tunnel interface. Malposition of the tibial tunnel, leading to graft micromotion. Graft to tunnel size mismatch, which may cause roof impingement, extension deficit, graft tear, or Cyclops lesion. The "windshield wiper effect," where sagittal plane micromotion of the graft in its tunnel causes bone resorption. "Bungee cord effect," or longitudinal elongation due to similar micromotion mechanisms (Skeletal Radiol. 2017 Feb;46(2):161-169; Stoller's Orthopaedics and Sports Medicine: The Knee). 3️⃣ Postoperative ACL Tunnel Diameter and Graft Selection Immediately after ACL reconstruction surgery, the expected tunnel diameter should be around 10 mm, regardless of the graft selection. Drilling diameters vary by graft type, with hamstring tunnels typically made with a 7.5–9-mm drill bit and bone-patellar tendon-bone (BPTB) tunnels with a 10-mm bit (Skeletal Radiol. 2017 Feb;46(2):161-169). 4️⃣ Graft Type and Tunnel Enlargement Tunnel widening is more prevalent with soft tissue grafts secured by suspensory fixation devices. Compared to bone-patellar tendon-bone (BPTB) autografts, hamstring (HS) autografts show significantly greater tunnel expansion, suggesting that a bone-to-bone interface might reduce graft micromotion. Furthermore, graft failure and tunnel expansion are more common with bioabsorbable screws than with metal screws (Skeletal Radiol. 2017 Feb;46(2):161-169). https://visualizingmsk.blogspot.com/?... "Visualizing MSK Radiology: A Practical Guide to Radiology Mastery" © 2022 MSK MRI Jee Eun Lee All Rights Reserved. #VisualizingMSK #ACLinjuries #KneeMRI #ACLtear #tunnelwidening #tunnelcyst You should not distribute or commercially exploit the content. You should not transmit or store it on any other website or electronic retrieval system.