Posterior Corner Knee Injury
Posterior corner knee injuries cause instability, pain, and difficulty with movement. Physiotherapy in Singapore helps restore knee stability, strength, and safe return to activity.
What is a Posterior Corner Knee Injury?
The posterior corner (also called the posterolateral corner) of the knee is a complex structure made up of ligaments, tendons, and muscles that stabilise the knee during movement.
It plays a critical role in controlling rotation and preventing excessive sideways movement.
Injuries to this area are often associated with other ligament injuries such as ACL or PCL tears.
Patients commonly describe: 👉 “Knee feels unstable when walking” 👉 “Feels like my knee might give way” 👉 “Pain at the back or outer side of my knee”
If you are looking for posterior corner knee injury physiotherapy in Singapore, ACE Physio Sports provides expert diagnosis and structured rehabilitation to restore knee function.
Causes
Posterior corner knee injuries usually occur due to high-force trauma or sports-related incidents.
Common causes include:
- Direct impact to the inner knee (pushing it outward)
- Sports injuries (football, basketball, running)
- Sudden twisting or hyperextension of the knee
- Road traffic accidents
- Combined ligament injuries (ACL, PCL)
Injury severity is classified as:
- Grade I: Mild injury with minimal instability
- Grade II: Partial tear with some looseness
- Grade III: Complete injury with significant instability
Symptoms (What patients actually feel)
Posterior corner injuries present with both pain and instability:
- Pain at the back or outer side of the knee
- Knee feels unstable or “giving way”
- Swelling and stiffness
- Difficulty walking or weight-bearing
- Reduced range of motion
- Weakness in the knee
Patients often say: 👉 “Knee gives way when I walk” 👉 “Cannot trust my knee during movement” 👉 “Pain when turning or changing direction”
What Should I Do?
- Seek physiotherapy assessment immediately
- Avoid weight-bearing if painful
- Use support (brace or crutches if needed)
- Get imaging (MRI) if recommended
- Start structured rehabilitation early
Early diagnosis is critical to prevent long-term instability.
What Shouldn’t I Do?
- Ignore instability symptoms
- Continue sports or high-impact activity
- Delay assessment or imaging
- Push through knee pain
- Self-manage without guidance
Untreated injuries can lead to chronic instability and further damage.
Physiotherapy Treatment for Posterior Corner Knee Injury
At ACE Physio Sports, rehabilitation is tailored based on injury severity and whether surgery is required.
1. Detailed Assessment
- Identify involved structures (LCL, popliteus, ligaments)
- Assess knee stability and movement
- Evaluate functional limitations
2. Pain & Swelling Management
- Ice therapy and compression
- Electrotherapy (TENS, ultrasound)
- Gentle manual therapy
3. Mobility Restoration
- Range of motion exercises
- Prevent stiffness
- Gradual knee movement progression
4. Strengthening Programme
- Quadriceps strengthening
- Hamstrings and glute activation
- Improve joint stability
5. Gait & Functional Training
- Walking retraining
- Safe weight-bearing progression
- Functional movement correction
6. Balance & Proprioception Training
- Improve knee control
- Reduce risk of re-injury
7. Post-Surgical Rehabilitation (if required)
- Early controlled movement
- Gradual loading phases
- Return-to-sport progression
8. Return to Sport
- Sport-specific drills
- Agility and control training
Learn more about our rehabilitation approach at https://acephysiosport.com.
Recovery & Long-Term Effects
- Grade I–II: 4–8 weeks
- Grade III (with surgery): 3–6 months
With proper physiotherapy:
✔ Knee stability improves ✔ Pain reduces ✔ Strength and control return ✔ Safe return to sport
Without treatment, patients may experience long-term instability and repeated injuries.
Why Choose ACE Physio Sports
✔ Expertise in complex knee ligament injuries ✔ Accurate diagnosis and structured rehab protocols ✔ Sports-focused recovery programmes ✔ Personalised treatment plans ✔ Conveniently located near East Coast Road, Singapore
If you are searching for knee ligament injury treatment in Singapore, ACE Physio Sports provides expert care for posterior corner injuries.
Book Appointment
Start your recovery and regain knee stability today.
👉 Book now: https://acephysiosport.com 📞 Call / WhatsApp: +65 81535374
Frequently Asked Questions
Why does my knee hurt when I go up or down stairs?
Stair pain is a hallmark of many knee conditions, including Posterior Corner Knee Injury. Stairs significantly increase the load through the knee joint and surrounding structures. Physiotherapy identifies where the weakness or irritation lies and targets it with specific exercises.
My knee swells after activity — is that serious?
Post-activity swelling in Posterior Corner Knee Injury indicates the knee is being irritated beyond its current tolerance. Physiotherapy can reduce inflammation, help modify your activity load, and progressively build the knee's capacity to handle more demand.
Can I still exercise with Posterior Corner Knee Injury?
Yes — low-impact exercise like swimming, cycling, and targeted strength training is usually fine and beneficial. Your physiotherapist will identify which activities are appropriate and create a programme that builds knee strength without aggravating your condition.
Ready to start your recovery?
Our specialist physiotherapists are here to help. Book a consultation today.
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