New Orleans—If the results from a recent study left researchers scratching their heads, it wasn’t because more than one-fourth of adductor canal catheters were displaced by postoperative day 1 in patients undergoing total knee arthroplasty (TKA). Rather, the investigators were bemused by the fact that pain scores were statistically similar among all patients, regardless of catheter displacement.
“Like many institutions, we switched from femoral nerve catheters because of the