ACL Tear
The anterior cruciate ligament (ACL) is one of the main ligaments of the knee that is responsible for anterior and rotatory stability. It is more often injured in female athletes, and commonly occurs in soccer, basketball, football, gymnastics, and skiing. When torn, patients often feel a pop in their knee, have a high level of pain in the knee and leg, almost immediate swelling, and difficulty walking. An ACL tear can be suspected during a clinical exam, but is confirmed torn on MRI. For patients looking to return to cutting and pivoting sports, the recommendation is surgical treatment to reconstruct the ACL with a new tendon or potentially repair the ACL in the appropriate clinical settings.
Osteoarthritis
Knee osteoarthritis is a chronic degenerative condition that causes progressive loss of articular cartilage. It can cause pain, especially at night, swelling with activity, stiffness, and difficulty walking. Osteoarthritis is best diagnosed on x-ray. Initial treatment is conservative and includes oral and topical anti-inflammatories, physical therapy, activity modification, weight loss, possible bracing, and injections including steroids, hyaluronic acid, platelet rich plasma (PRP) and bone marrow concentrate (BMC). When nonoperative treatment is no longer helping control the pain, the ultimate surgical treatment is for a total knee replacement to alleviate knee and leg pain.