This narrative review covers fatty degeneration of the rotator cuff (FDRC), a common and largely irreversible complication of chronic cuff tears. It walks through the cellular and molecular drivers, how the condition is diagnosed and staged on imaging, and how staging guides management. It also surveys experimental cell- and molecule-based therapies still confined to animal models.
Treat fatty degeneration as a clock that only runs one direction. It rarely reverses, it keeps progressing with or without surgery, and higher preoperative grades independently predict re-tear and worse outcomes. Goutallier stage 2 is the number to anchor on. At stage 2 or higher, re-tear risk rises steeply and outcomes suffer, so this is where the argument for earlier repair gets strong.
Pay special attention to the infraspinatus. Its fatty degeneration predicts repair failure more strongly than the other cuff muscles, so infraspinatus FD should raise your urgency for intervention.
Understand the limits of your imaging. The Goutallier scale is subjective with variable interrater agreement, and quantitative fat fraction on Dixon MRI correlated better with failure and range of motion. Counsel patients honestly: a massive tear can often be watched for about 48 months, but function tends to decline and the window for repair closes as degeneration advances.
This narrative review covers fatty degeneration of the rotator cuff (FDRC), a common and largely irreversible complication of chronic cuff tears. It walks through the cellular and molecular drivers, how the condition is diagnosed and staged on imaging, and how staging guides management. It also surveys experimental cell- and molecule-based therapies still confined to animal models.
Treat fatty degeneration as a clock that only runs one direction. It rarely reverses, it keeps progressing with or without surgery, and higher preoperative grades independently predict re-tear and worse outcomes. Goutallier stage 2 is the number to anchor on. At stage 2 or higher, re-tear risk rises steeply and outcomes suffer, so this is where the argument for earlier repair gets strong.
Pay special attention to the infraspinatus. Its fatty degeneration predicts repair failure more strongly than the other cuff muscles, so infraspinatus FD should raise your urgency for intervention.
Understand the limits of your imaging. The Goutallier scale is subjective with variable interrater agreement, and quantitative fat fraction on Dixon MRI correlated better with failure and range of motion. Counsel patients honestly: a massive tear can often be watched for about 48 months, but function tends to decline and the window for repair closes as degeneration advances.