Magnesium sulphate and sodium bicarbonate as additives for periarticular local infiltration analgesia improve pain management after unicompartmental knee arthroplasty: a prospective, double-blind, randomized controlled trial.

What Was Tested

This randomized controlled trial looks at Vitamin D, K2, Magnesium and Zinc.

The present study aimed to evaluate whether the modified LIA has advantages in pain control and joint function recovery after UKA surgery.

Why It Was Studied

Periarticular local infiltration analgesia (LIA) has become a widely used method for postoperative pain management after unicompartmental knee arthroplasty (UKA).

Chinese Clinical Trial Registry, ChiCTR2200060500. 21 March 2023.

Who Took Part

The age groups tagged for this paper are middle-aged adults and older adults, both men and women.

Sixty-one patients who underwent UKA were enrolled and randomly assigned to receive periarticular infiltration of a modified cocktail (comprising ropivacaine, epinephrine, dexamethasone, magnesium sulphate, and sodium bicarbonate) or a conventional cocktail (comprising ropivacaine, epinephrine, dexamethasone, ketorolac, and morphine).

The outcomes included the consumption of patient-controlled intravenous analgesia (PCIA) medication used for postoperative analgesia, pain score, early joint functional recovery, discharge time, and complication rates.

How the Study Was Run

The design is described as randomized and double-blind.

The participants were allocated by chance, so the Vitamin D, K2, Magnesium and Zinc group and the comparison group should start out alike.

Neither the participants nor the staff measuring them knew who was on Vitamin D, K2, Magnesium and Zinc, so expectations could not easily colour the readings.

What Was Measured

The subject headings attached to it are Arthroplasty, Replacement, Knee, Magnesium Sulfate, Postoperative Pain, Sodium Bicarbonate, Pain Management, Anesthetics, Local and Pain Measurement.

Author keywords: Analgesic drugs, Cocktail, Magnesium sulphate, Periarticular local infiltration analgesia and Unicompartmental knee arthroplasty.

What This Means in Plain Language

The paper is a randomized and double-blind study of Vitamin D, K2, Magnesium and Zinc.

The abstract goes on to report its results in about 5 sentences; this page does not restate them, so read the paper for the findings and their limits.

The publication is from 2024 (Journal of orthopaedic surgery and research), a journal based in England.

More context: the Vitamin D, K2, Magnesium and Zinc compound page, all human trials.