Microfracture

knee painFor patients who have the beginning stages of arthritis or cartilage damage, Arthrosurface® has launched a device for marrow stimulation named NanoFx (Nanofracture) that provides a better solution than a standard microfracture technique. It is similar to a microfracture procedure. In this Nanofracture procedure, a surgeon uses a needle to create holes in the exposed defect that will cause bleeding. This enables new cartilage to develop, which will grow and fill the lesion to create a new surface. This response is similar to the healing process of a “scar” or the way a scab grows over a cut. The NanoFx procedure has been proven to create smaller and deeper cell channels than a standard microfracture technique, therefore stimulating more bone marrow and achieving better results. NanoFx is a preliminary treatment for pain relief and patients most likely to benefit from the Arthrosurface NanoFx (nanofracture) procedure are the same as those targeted for any microfracture technique.

Key Benefits of NanoFx:

  • Doesn’t damage the underlying bone
  • More holes provides increased marrow flow to the defect site
  • Better tissue quality with pain relief
  • Functional improvement and greater durability
  • Reduced osteophyte formation (bone bumps)

Surgical and Recovery Expectations

knee jointThe rehab for microfracture procedures can be lengthy and involve minimal weight bearing for weeks. A a full return to activity can be expected around nine to twelve months post surgery.

Mobilization begins immediately after surgery. Weight bearing with crutches is typically recommended for up to eight weeks. Patients typically begin stationary biking without resistance and a water exercise program at two to four weeks after the microfracture procedure, depending on the size and position of the lesion. Patients usually progress to full weightbearing after about 8 weeks and begin more vigorous biking with increasing resistance. Depending on the clinical examination, size of the patient, the sport, and the size of the lesion, it is usually recommended that patients do not return to sports that involve pivoting, running, and jumping until at least 4 to 9 months after microfracture surgery.