ACL Injury: Complete Guide to Treatment, Surgery and the Road Back to Sport

What is the ACL and how does it tear?

The anterior cruciate ligament (ACL) is the key stabiliser inside the knee, controlling forward slide and rotation of the shin bone. It tears most often during sports — a sudden change of direction, an awkward landing from a jump, or a tackle — in football, cricket, kabaddi, badminton and basketball. Interestingly, most ACL tears happen without any contact at all.

Women are 2–8 times more prone to ACL tears than men in the same sport, due to a combination of anatomy, landing mechanics and hormonal factors.

Recognising an ACL tear

Diagnosis is made by clinical examination — specific stability tests performed by the orthopaedic surgeon — and confirmed with an MRI, which also reveals associated meniscus or cartilage damage found in over half of ACL injuries.

• A distinct 'pop' felt or heard at the moment of injury
• Rapid swelling within a few hours
• Inability to continue playing
• A feeling that the knee 'gives way' or buckles, especially on turning
• Later: instability during cutting, pivoting or walking on uneven ground

Surgery or no surgery? How the decision is made

The ACL cannot heal reliably on its own, but not every tear needs an operation. Non-surgical management with structured physiotherapy can work for patients with a partial tear, low sporting demands, or a stable knee on examination. For active patients who want to return to pivoting sports — or whose knee keeps giving way — arthroscopic ACL reconstruction is the definitive treatment.

In reconstruction, the torn ligament is replaced with a graft — usually your own hamstring tendons — fixed through tiny keyhole incisions. At Dr. Murkute's O2 Bone & Eye Care Clinic, Dr. Vishal Murkute performs arthroscopic ACL reconstruction with fellowship training specifically in arthroscopy and sports medicine.

The recovery timeline, honestly

Returning too early is the biggest risk factor for re-tear. Clearance is based on strength and movement testing — not just the calendar.

• Weeks 0–2: Swelling control, regaining full straightening, walking with crutches
• Weeks 2–6: Restoring knee bend, building quadriceps strength, walking normally
• Months 2–4: Strength training, cycling, swimming, straight-line jogging (typically around month 3)
• Months 4–6: Agility drills, sport-specific exercises, hopping and direction change
• Months 6–9: Gradual return to full training; return to competitive pivoting sport typically at 9–12 months

Preventing ACL injuries

• Structured warm-up programmes (like FIFA 11+) reduce ACL injuries by up to 50%
• Strengthen hamstrings and gluteal muscles, not just quadriceps
• Practise landing softly with knees aligned over toes
• Build core stability — trunk control directly affects knee loading
• Increase training load gradually; sudden spikes in intensity raise injury risk