I prefer to do it by a semi open method after a preliminary arthroscopy to evaluate maltracking, and the status of the knee. Arthroscopic lateral release avoids the division of the retinacular arteries and postoperative hematomas. I splint the knee for 24 hours and then commence CPM. Cryotherapy is used for a week. Partial weight bearing crutch ambulation is advisable for six weeks. Return to normal activity is possible after six weeks.