GLP-1 Agonists in Orthopedic Surgery: A Narrative Review of Bone Health and Surgical Implications

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Abstract
Glucagon-like peptide-1 (GLP-1) receptor agonists, commonly used for glycemic control in patients with type 2 diabetes and for weight loss in obese patients, have been increasingly used due to their effectiveness in treating these conditions and in reducing cardiovascular events. Yet evidence is limited surrounding their impact on bone health and on patients undergoing orthopedic procedures. This narrative review explores the mechanisms of action of GLP-1 agonists, their effects on bone health, and the implications of their use in perioperative patents undergoing orthopedic surgery, with an emphasis on spine surgery. Basic science studies suggest that GLP-1 agonists may enhance bone mineral density and reduce bone resorption through various molecular pathways; clinical studies of their impact on fracture risk and bone health show mixed results. Also, the perioperative use of GLP-1 agonists poses challenges due to their effects on gastric motility and potential medication interactions. Nonetheless, achieving proper glycemic control with GLP-1 agonists may benefit patients with diabetes or obesity undergoing orthopedic procedures, particularly in preoperative weight management and glycemic control. Further research is needed to clarify their long-term effects on bone health and their perioperative use in orthopedic patients.

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