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Anterior Cruciate Ligament Injury!

Written and reviewed by
FSS, BPTh/BPT, PGDDCN(Dietetics and Clinical Nutrition)
Physiotherapist, Noida  •  12 years experience
Anterior Cruciate Ligament Injury!

Acl injuries occur mostly as a result of excessive valgus stress, forced external rotation of the femur on a fixed tibia (with the knee in full extension, or forced hyperextension. These injuries are common in contact sports and those involving a sudden change of direction, twisting or jumping.

Clinical features:- 

  • Age:-14-30 yrs
  • Pain
  • Rapid swelling
  • Tenderness in the joint line
  • Audible pop or crack at the time of injury
  • Feeling of instability
  • Haemarthrosis
  • Limited rom (range of motion)

Positive:- anterior drawer test, Lachman test and pivot shift test

Treatment for ACL injuries-

Price principles:- 

  • Protection
  • Rest
  • Ice
  • Compression elevation. 


When & who requires ACL surgery?

The decision of whether to operate is based on a number of factors, including:
Age; lifestyle; sporting involvement; occupation; the degree of knee instability and any other associated injuries.


  • Mobility:- heel slide exercises, hamstring stretch, groin stretch
  • Strengthening exercises:- static quadriceps, static hamstrings, calf raise, hip abduction, hip extension, hamstring curls with the band, eccentric squats, step up, pelvic bridging
  • Proprioceptive exercises:- (only at the advanced recovery stage) hopping and step jump 

If surgery is indicated then pre-surgery exercises are done to build up the strength in the muscle.

Isometric or static strengthening exercises which do not involve movement can usually begin early on.


Supports & braces: A hinged knee brace is often recommended for support both before and after surgery.


In case you have a concern or query you can always consult a specialist & get answers to your questions!
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