(Fig 2-E.31) Graft Tear In PCL Reconstruction and Arthrofibrosis

https://youtu.be/LGExBkGbODA

https://youtu.be/UgiSgNcqguA

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Post-PCL Reconstruction Complications

① Recurrent instability

• Recurrent 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 sensitivity.
• Posterior tibial translation ≥3.6 mm may indicate graft failure.

② Arthrofibrosis

• Arthrofibrosis is much more frequent after PCL reconstruction compared to ACL reconstruction.
• Some degree of arthrofibrosis may contribute to knee stabilization and be considered normal if the range of motion is not limited.

• Diffuse arthrofibrosis appears as ill-defined, low-signal spiculated areas within the Hoffa fat pad, around the graft, extending to the joint capsule and causing synovial/capsular thickening.

 

Magn Reson Imaging Clin N Am 22 (2014) 557–580

Skeletal Radiol (2014) 43:1659–1668

 

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