The blind spots in arthroscopic approaches.

Fifty-six knees from preserved cadavers were examined in order to compare the blind spots in different approaches in the knee during arthroscopy . After dissection of the skin pins were placed to define the main ligamentous structures of the knee, and arthroscopic examination was then carried out using a 30 degree Storz telescope. The blind spots were defined for each approach. The central approach gives a wide visualisation of the posterior compartment and has a smaller blind area than other approaches.