Consumer Interest in Shoulder Replacement Surgery: A Google Trends Analysis From 2013 to 2023.

Background: Shoulder replacement has grown rapidly over the past decade, owing in part to the rise of reverse shoulder arthroplasty and its expanding indications. The interest of industry in shoulder replacement is well documented; however, consumer interest has not been investigated.

Methods: Search inquiry data were queried from Google Trends to measure consumer interest in shoulder replacement over the period from 2013 to 2023. The primary search terms were "shoulder arthritis" and "shoulder replacement" odds ratio (OR) "total shoulder replacement." Secondary search terms were "reverse shoulder replacement" OR "reverse total shoulder replacement." Searches by geographic location were also conducted.

Results: Search volume index (SVI) significantly increased for all search terms during the 10-year interval (P < 0.001), with a 58.5%, 129.3%, and 219.4% increase for "shoulder arthritis," "shoulder replacement" OR "total shoulder replacement," and "reverse shoulder replacement" OR "reverse total shoulder replacement," respectively. Reverse shoulder replacement SVI grew 24.6% faster than that of shoulder replacement. In addition, trend analysis of SVI versus time revealed excellent correlations (R2) for all search terms: "shoulder arthritis" (0.76), "shoulder replacement" OR "total shoulder replacement" (0.79), and "reverse shoulder replacement" OR "reverse total shoulder replacement" (0.75). Over the 10-year period, interest increased the most for "shoulder arthritis" in Connecticut and Alabama, for "shoulder replacement" OR "total shoulder replacement" in Mississippi and Montana, and for "reverse shoulder replacement" OR "reverse total shoulder replacement" in Utah and Indiana.

Discussion: Our results demonstrate a significant increase in consumer interest in shoulder replacements over the past decade and identify geographic hot spots of interest. These data will be useful for educating and treating populations interested in shoulder replacements. This is the first study to use Google Trends to analyze consumer interest in shoulder replacement surgery.