Posttraumatic capsular reaction in the knee?

Posttraumatic Capsular Reaction in the Knee: Understanding a Common Sequela of Injury

Following knee trauma—whether from sports, falls, or accidents—a posttraumatic capsular reaction can occur as part of the body’s healing response. This condition involves inflammation, fibrosis, and sometimes thickening or contraction of the joint capsule, leading to pain and restricted motion.

We find in the functional examination the typical capsular pattern, which may “dominate” the original lesion.