"Retrospectoscopic" arthroscopy.
Examination of the posterior compartments through posterior portals was recommended in 1974, and since then surgical techniques with arthroscopes and instruments in posterior portals have been described. Use of the 120 degrees arthroscope for the last 9 years has proven the merit of those recommendations. We consider arthroscopy to be incomplete without examination of the posterior compartments. The examination is possible with standard scopes in posterior portals, but it is easier, quicker, safer, and more complete using the technique described with the 120 degrees scope in an anterior portal. The 120 degrees arthroscope is helpful in diagnostic and operative arthroscopy. It permits comprehensive arthroscopy without additional punctures, and allows the use of surgical instruments without the arthroscope itself getting in the way. Although it is difficult to learn the technique, we believe the benefit is worth the effort, and recommend its routine use.