How long does physiotherapy take to work for PCL injury?

The posterior cruciate ligament helps limit backward movement of the shin. Rehabilitation commonly protects the knee at first, restores safe movement, and strengthens the quadriceps while avoiding loads that strain the healing ligament. Later stages address balance, controlled stepping, and the demands of work or sport. A partial injury managed without surgery may follow a different pathway from a more severe injury or a knee with other damaged structures.

Feeling less pain does not automatically mean the knee is ready for pivoting, jumping, or contact. Stability, strength, movement quality, and the clinician's examination all influence progression.

Use the brace, crutches, or movement limits exactly as instructed, and keep follow-up appointments so loading can be advanced safely. Perform the prescribed exercises with controlled technique. Avoid testing the knee with sudden twisting, deep bending, or sport drills before clearance. Report increasing swelling, a sense of backward shifting, or difficulty following the restrictions so the plan can be adjusted.

Seek urgent assessment after a new injury if the knee becomes deformed, you cannot bear weight, or the foot becomes cold, pale, numb, or weak. Prompt review is also needed for rapidly increasing swelling, locking, calf pain or swelling, or worsening instability. If rehabilitation is not producing better movement or confidence, the knee may need reassessment for associated injuries or a different treatment approach.

Ask what type and severity of PCL injury you have, which movements protect it, and what milestones permit walking without aids, driving, work, or sport. Ask how progress will be tested before each increase in activity.