The Arthroscopic "Bellows" Sign Identifies Hidden Rotator Cuff Tears

Area of Science:

• Orthopedic Surgery
• Arthroscopy
• Musculoskeletal Imaging

Background:

• Intraoperative diagnosis of rotator cuff tears can be challenging, even with preoperative imaging and clinical suspicion.
• Partial-thickness and obscured full-thickness tears are particularly difficult to identify during surgery.
• Accurate intraoperative assessment is crucial for effective surgical planning and treatment.

Purpose of the Study:

• To introduce and describe a novel visual indicator for detecting rotator cuff tear pathologies during arthroscopy.
• To provide a technique video demonstrating the application of this new diagnostic sign.
• To enhance the intraoperative recognition of various rotator cuff tears.

Main Methods:

• Observation of dynamic fluid behavior within rotator cuff tissues during arthroscopic procedures.
• Identification of a specific visual sign related to tissue expansion and contraction.
• Correlation of this sign with confirmed rotator cuff tear diagnoses.

Main Results:

• The proposed arthroscopic "bellows" sign is derived from the dynamic fluid expansion and contraction of affected rotator cuff tissues.
• This sign serves as a visual cue for the presence of rotator cuff tear pathologies.
• The technique aims to improve the detection rates of difficult-to-diagnose tears.

Conclusions:

• The arthroscopic "bellows" sign offers a new method for intraoperative rotator cuff tear detection.
• This visual sign can aid surgeons in identifying partial and obscured full-thickness tears.
• Further validation may enhance its utility in arthroscopic rotator cuff surgery.