Continuous Spinal Anesthesia in Frail Patients Undergoing Orthopedic Hip and Knee Revision Surgery: Advantages, Indications, and Risk Management—A Single-Center Retrospective Experience

: In this retrospective single-center experience, CSA with titrated low-dose levobupivacaine was feasible and associated with stable hemodynamic profiles and a low rate of complications in frail patients undergoing complex lower-limb revision surgery. However, given the absence of a control group and the limited sample size, these findings should be interpreted cautiously. Further prospective comparative studies are needed to better define the role of CSA in high-risk orthopedic patients.