Anterior cruciate ligament injury is commonly seen in sports related trauma. Complete tear requires surgical reconstruction. During postoperative rehabilitation, because of arthrogenic muscle inhibition (AMI), the quadriceps muscle remains inactive and has reduced contraction. Various strategies were aimed at treating this AMI and/or improve quadriceps strength such as open chain (OKC) and closed chain kinetic (CKC) exercises, blood flow resistance training (BFRT), cryotherapy, and transcutaneous nerve stimulation (TENS). Of all these, CKC was better than OKC in improving the range of movements, weight bearing exercises provided quicker return to physical activity. Cryotherapy was found to be an effective way to counter AMI and improve knee function and reduce the pain. The BFRT and TENS were found to be ineffective. Single legged hop test at six months postoperatively was found to be reliable predictor of the quadriceps function at one year. Electromechanical dynamometry is the gold standard machine to assess the knee extension and provide exercise, handheld dynamometry is easy to use. Leg press, leg extension machine are other machines used to provide exercises.

Introduction: The anterior cruciate ligament (ACL) is one of the knee stabilizer and acts to prevent excessive anterior mobility as well as rotational movement. The ACL is extending from the lateral femoral condyle to the anterior intercondylar area of tibia. During excessive movement or abnormal mobility affecting the knee joint, the ACL is under tension and prone for injury. The injured ACL was managed by surgery as it was an option for treatment owing to its poor vascularity. The distribution of the blood vessels within the ACL was not clear and only few studies reported in the past. The present study focused on distribution of blood vessels in the ACL. Subjects and Methods: The ACL microvasculature was assessed using 48 cadaveric ACL tissues using immunohistochemistry. The antibody against the transmembrane protein VE-Cadherin was targeted to study the blood vessels. Results: It was observed that the middle part of the ACL was less vascular compared with the peripheral parts of ACL. Conclusion: The knowledge of the ACL vasculature may help in planning surgeries of ACL to reduce postoperative complications.