The "coiling-up procedure": a novel technique for extra-articular arthroscopy.

The "coiling-up procedure" is a novel technique for extra-articular arthroscopy. A coil-shaped lifter is used to create the extra-articular working space, and a dry arthroscopy is performed. It can be combined with conventional intra-articular arthroscopy to enable direct vision from both inside and outside the joint. We have successfully used this technique to perform a vastus lateralis release in cases of painful bipartite patella. This is an innovative technique that offers the possibility of expanding the indications for extra-articular arthroscopy to other areas of the body. We describe in detail the technique for this new procedure in the knee.