A
Excessive fluid extravasation and potential airway compromise
B
Decreased intra-articular bleeding from the coracoacromial ligament
C
Spontaneous rupture of the long head of the biceps
D
Decreased incidence of postoperative adhesive capsulitis
Explanation:Correct Option: A. High arthroscopic pump pressures, particularly when outflow is restricted or limited, can lead to severe fluid extravasation into the soft tissues of the shoulder, neck, and anterior chest. This can potentially cause life-threatening airway compromise due to tracheal compression. Strict fluid management is required. (Ref: Hynson et al., Anesthesiology, 1993)