Sprains are injuries to ligaments, strains are injuries to muscle or tendon. They are graded by the degree of tissue damage and numbered 1-3.
A Grade 1 sprain/strain is a minor injury, with damage to up to 10 percent of the tissue. This injury will cause you to experience mild pain and may require a short amount of rest or activity modification.
A Grade 2 sprain/strain is 10 to 90 percent tissue damage. Grade two sprains will cause moderate to severe pain and typically require some rehabilitation, a few weeks of rest and then a gradual return to activity.
A Grade 3 sprain/strain is 90 to 100 percent damage. These injuries cause either severe pain, or no pain but a severe loss of function. If there is no other muscle or ligament to compensate for the damage, surgery is best. If there are other structures to compensate then rehabilitation can help you return to your pre-injury function (or nearly) over a period of 6-8 weeks.
Contact Summit Physiotherapy if you have any questions.