
ATFL & CFL Ankle Sprains
ATFL & CFL ankle sprains are some of the most frequently treated injuries in physiotherapy clinics, particularly among active individuals and athletes. These two ligaments play a crucial role in stabilising the ankle, and injuries to them can significantly affect mobility and performance. Understanding how these sprains occur—and how to manage them effectively—is key to achieving a full and lasting recovery.
What Are the ATFL and CFL Ligaments?
Anterior Talofibular Ligament (ATFL)
The ATFL is the most commonly injured ligament during ankle sprains. It connects the fibula (outer lower leg bone) to the talus (ankle bone), helping stabilise the ankle during plantarflexion and inversion movements.
Calcaneofibular Ligament (CFL)
The CFL stretches from the fibula to the calcaneus (heel bone). It stabilises the ankle in neutral or dorsiflexed positions and is typically involved in more severe or high-grade sprains.
What Causes ATFL and CFL Sprains or Ruptures?
Injuries to these ligaments usually happen due to:
- A sudden twist or roll of the ankle (typically an inversion injury)
- Landing awkwardly after a jump
- High-impact or stop-start sports
- Walking or running on uneven surfaces
Common symptoms include:
- Sharp pain on the outside of the ankle
- Swelling and bruising
- Difficulty bearing weight
- A feeling of the ankle “giving way”
- In more severe cases, a loss of ankle stability or function
Early Stage Management (First 48–72 Hours)
The goal in the acute phase is to reduce pain, swelling, and further injury.
Follow the RICER protocol:
- Rest: Minimise weight-bearing. Crutches may be needed.
- Ice: Apply for 15–20 minutes every 2–3 hours to limit inflammation.
- Compression: Use a bandage or brace to support the joint.
- Elevation: Keep the ankle above heart level whenever possible.
- Referral: Seek physiotherapy to assess the severity and begin early treatment.
Avoid HARM in the first 48 hours:
- Heat
- Alcohol
- Running
- Massage
Physiotherapy Rehabilitation for ATFL and CFL Injuries
Once the initial swelling settles, rehabilitation begins. A structured program helps restore strength, control, and confidence—preventing chronic ankle instability or re-injury.
Phase 1: Reduce Pain & Restore Mobility
- Gentle range-of-motion (ROM) exercises
- Isometric strengthening of surrounding muscles
- Use of ankle brace if required
Phase 2: Build Strength & Balance
- Resistance exercises for peroneal and calf muscles
- Balance drills on stable and unstable surfaces
- Proprioceptive training (e.g., wobble boards, foam pads)
Phase 3: Return to Sport or Activity
- Hopping, jumping, agility drills, and directional change exercises
- Plyometrics and dynamic balance work
- Gradual return to running or sport, under physiotherapist supervision
Preventing Re-Injury – Long-Term Management Tips
To reduce the risk of future sprains:
- Continue regular ankle strength and stability exercises
- Use supportive taping or bracing for high-risk activities
- Choose appropriate footwear for your sport or terrain
- Ask your physio for a personalised prevention program
When Should You See a Physiotherapist?
If you’re still experiencing ankle pain, instability, or swelling days after your injury, don’t delay. A physiotherapist can:
- Diagnose the severity (Grade I–III ligament damage)
- Provide manual therapy and targeted treatment
- Develop a rehab plan that aligns with your goals and lifestyle
Book a Home Physio Appointment in Melbourne
At After Hours Physio, we provide urgent home-visiting physiotherapy for ankle sprains, ligament injuries, and more—when getting to a clinic just isn’t practical. We offer early assessment and treatment to accelerate recovery and reduce your risk of long-term instability.
📍 Servicing Blackburn, Box Hill, Mitcham, Doncaster, and nearby suburbs
🕐 After-hours and same-day appointments available
📞 Book online at afterhoursphysio.com.au or call 0415 238 432
About the Author

Dominic Tan, APAM
Principal Physiotherapist & Founder – After Hours Physio
Dominic is an experienced Australian physiotherapist with a special interest in urgent pain management and home-based rehabilitation. He leads After Hours Physio, a home-visiting physiotherapy service in Melbourne, helping patients regain comfort and mobility outside standard clinic hours. Dominic is passionate about delivering evidence-based care where and when it’s needed most.
📞 Urgent home visits available 7 days a week
🌐 www.afterhoursphysio.com.au
