Knee microfracture surgery - Overview
Alternative Names
Cartilage regeneration - knee
Definition of Knee microfracture surgery:
Knee microfracture surgery is a common procedure used to repair damaged knee cartilage. Cartilage is the material that helps cushion the area where bones meet in the joints. Often, athletes have this procedure.
Description:
Three different types of anesthesia may be used for knee arthroscopy surgery:
- Your knee may be numbed with painkilling medicine, along with medicines to relax you
- Spinal (regional) anesthesia
- General anesthesia, where you will be unconscious and pain-free.
The surgeon will make a 1/4-inch-long incision (cut) on your knee.
- Then the surgeon will insert a long, thin device called an arthroscope through this incision. The arthroscope is like a camera. It is attached a video monitor in the operating room. It allows the surgeon to look inside your knee and work directly on the joint area. See also: Knee arthroscopy
- The surgeon uses a small pointed tool called an awl to make very small holes called microfractures (tiny breaks) in the bone near the damaged cartilage.
- The holes the surgeon makes in your bone release the cells in your bones that build new cartilage. Your body then builds new cartilage to replace the damaged cartilage.
- Reviewed last on: 2/9/2009
- C. Benjamin Ma, MD, Assistant Professor, Chief, Sports Medicine and Shoulder Service, UCSF Dept of Orthopaedic Surgery. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
References
Ritchie PK. Surgical management of cartilage defects in athletes. Clin Sports Med. 2005 Jan;24(1):163-74.
Williams RJ 3rd, Harnly HW. Microfracture: indications, technique, and results. Instr Course Lect. 2007;56:419-428.
Kreuz PC, Erggelet C, Steinwachs MR, Krause SJ, Lahm A, Niemeyer P, et al. Is microfracture of chondral defects in the knee associated with different results in patients aged 40 years or younger? Arthroscopy. 2006;22:1180-1186.