Introduction

Musculoskeletal (MSK) disease is a substantial global burden, especially in lower income countries. However, limited research has been published on MSK health by scholars from these countries. We aimed to study the distribution of authorships, including trends in peer-reviewed orthopaedic publications based on each author's affiliated institution's country income status.

Methods

Based on a bibliometric search, 119 orthopaedic-related journals were identified using the Journal Citation Reports database. Details of all scientific articles published in these journals between 2012 and 2021 were used to study trends and association between each of the author's affiliated institution's country income status, using the World Bank Classification.

Results

Of the 133,718 unique articles, 87.6% had at least one author affiliation from a high-income country (HIC), 7.0% from an upper-middle income country (UMIC), 5.2% from a lower-middle income country (LMIC), and 0.2% from a low-income country (LIC). Overall, these articles were cited 1,825,365 times, with 92.5% of citations from HIC-affiliated authors and < 0.1% from LIC-affiliated authors. Over the 10-year study period, HIC-affiliated articles demonstrated the largest increase in the number of publications (9107-14,619), compared to UMIC-affiliated (495-1214), LMIC-affiliated (406-874), and LIC-affiliated articles (4-28).

Conclusions

There are large and persistent disparities in orthopaedic research publications based on the country income status of the author's affiliated institution, especially in the higher impact orthopaedic journals. Efforts should be made to increase opportunities for scholars from LICs and LMICs to publish their research in high-impact orthopaedic journals.