Global Trends in the Diagnosis and Treatment of Knee Valgus after THA: A Bibliometric and Visualized Study

Knee varus can cause pain during walking in the knee joint, and the joint's mobility is also affected, which can easily lead to knee osteoarthritis. This study aims to explore the current status and trends worldwide regarding the diagnosis and treatment of knee varus after total hip arthroplasty (THA). Research on knee varus following total hip arthroplasty (THA) published between January 1, 2014, and January 3, 2025, was collected from the Web of Science Science Citation Index Expanded (WOS). Bibliometric techniques were employed to examine and categorize the source data. For visualization purposes, VOS viewer version 1.6.18 software was used to conduct analyses on coauthorship, cooccurrence, bibliographic coupling, and cocitation, as well as to assess the overall research trends related to knee varus after THA in recent years. 440 relevant articles in all were gathered. Both the proportional research interest and the quantity of papers produced each year are rising globally. A logistic growth model can be fitted using the cumulative publication number of studies on knee varus following THA: f(x) = a/(1 + eb cx). With the highest citation counts, hindex, and total link strength (TLS), the US has made the biggest contribution to international research. "Knee Surgery Sports Traumatology Arthroscopy" publishes the majority of the studies. The university that has contributed the most is Boston University. Mechanism studies, tissue engineering, clinical investigations, and mechanical studies are the four categories into which the research falls. Clinical research receives comparatively little funding. Based on current global trends, the number of articles concerning knee varus after THA is expected to continue to increase in the coming years. In this field, the United States is the largest contributor. Notably, recent hotspots include “pathogenesis,” “alignment of limbs,” “arthroplasty,” and “total hip arthroplasty.” Therefore, there will likely be more research on tissue engineering for knee varus after THA, which may inspire new clinical treatment methods for knee varus.