knee microfracture surgery…

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structure of a joint, cartilage regeneration, knee, microfracture, common surgical technique used, repair damaged knee cartilage, material that helps cushion bones, joints, frequently performed on athletes, surgeon makes a tiny, quarter-inch incision on the affected knee, inserts a long thin scope, arthroscope, scope allows the surgeon to work directly on the joint area, surgeon uses an ice pick-like tool, an awl to drill very small holes, "microfractures", bone near the defective cartilage, injury prompts the body to make new, replacement cartilage, bone marrow seeps out, the holes, creating a blood clot that releases cartilage-building cells, microfracture surgery, a patient, prevent a partial, total knee replacement, treat pain, in the knee from cartilage injuries, early arthritis, the knee, lesions on the kneecap , degenerative chondral lesions, the knee, traumatic injuries, cartilage, risk, surgery, bleeding, infection, microfracture, increased stiffness, the knee bone, cartilage breakdown, new fibrocartilage created by microfracture surgery is less durable than the body's original cartilage, break down after a few years, most patients improve after surgery, return to sports, intense activities, 4 months, physical therapy begins, in the recovery room immediately after surgery, patient is connected to a continuous passive motion, cpm, machine that gently flexes, extends the leg, 6 to 8 hours per day, several weeks, sleep, exercises, increased over time, patient regains full range of motion, such exercises, believed to speed up cartilage regeneration, told to keep weight off the affected joint, 6 to 8 weeks, crutches, ritchie pk, surgical management of cartilage defects in athletes, clin sports med, 2005 jan, 24(1), 163-74, miller bs, steadman jr, briggs kk, rodrigo jj, rodkey wg, patient satisfaction, outcome after microfracture, the degenerative knee, j knee surg, 2004 jan, 17(1), 13-7, orthopaedic knowledge update, pellicci pm, tria aj, garvin kl eds, hip, knee reconstruction, rosemont, illinois, american academy of orthopaedic surgeons, johnson, d, articular cartilage update, program, abstracts, the american academy of orthopaedic surgeons 70th annual meeting, february 5-9, new orleans, louisiana.