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Knee Ligament Injuries
Knee ligament injuries range from mild sprains to complex instability patterns. A careful exam and imaging plan helps separate injuries that can heal with protection from those that need reconstruction or repair.
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Common symptoms
- Knee giving way or instability
- Swelling after a twist, collision, or fall
- Pain on the inside, outside, front, or back of the knee
- Difficulty trusting the knee on uneven ground
- Concern for multi-ligament injury after higher-energy trauma
How it is diagnosed
- Mechanism of injury and swelling timeline
- Exam of ACL, PCL, MCL, LCL, and posterolateral corner stability
- X-rays to rule out fracture or avulsion injury
- MRI to define ligament, meniscus, cartilage, and bone bruising patterns
Nonsurgical treatment options
- Bracing and protected activity for stable injuries
- Therapy to restore motion, strength, and neuromuscular control
- Gradual return-to-activity testing
- Close follow-up for injuries that may declare instability over time
When surgery may be considered
- Complete tears causing instability
- Multi-ligament injuries
- Associated injuries that need repair
- High-demand goals where instability is likely to limit safe return
Recovery expectations
- Recovery depends on which ligaments are injured and whether surgery is needed
- Early motion and swelling control are often important
- Return to sport or work requires strength, stability, and confidence
Important note
This page is educational and cannot diagnose your condition. Your treatment plan should be based on an examination, imaging when needed, and a discussion with your medical team.