Table 1.

Pearls and Pitfalls With Outside-In MCL Release During Arthroscopic Medial Meniscus Surgery

Pearls	Pitfalls
Introduce the needle gently until the perfect spot is located between the medial meniscus and the tibial plateau in the posteromedial corner	Iatrogenic injury to intra-articular (cartilage, meniscus) or extra-articular (vein, nerve) structures with the needle
After this spot is located do not retract the needle completely and puncture 3-4 times in this area	Complete release of the MCL
Measure the distance in the medial compartment with the probe in between punctures to avoid over-release

MCL, medial collateral ligament.