Table 2.

Advantages and Disadvantages, Including Risks and Limitations, of Chondral Debridement with Pitch and Volume Change Guidance

Advantages	Disadvantages, Risks, and Limitations
Provides an additional method by which satisfactory debridement can be assessed.	Denuded areas already at or near the calcified cartilage layer (i.e. without chondral tissue) may not exhibit an audiometric change.
Heard pitch change can be appreciated by multiple surgeons, including both orthopedic staff and residents, simultaneously.	Teaching orthopedic surgeon staff should not depend on heard audiometric changes alone to ensure satisfactory debridement by residents and other surgeons
It is free of cost.	Utility may be limited because of background operating room noise levels