Musculoskeletal disease (MSD) is a major cause of disability in the global burden of disease, yet data regarding the magnitude of this burden in low and middle-income countries (LMICs) are lacking. The Surgeons OverSeas Assessment of Surgical Need (SOSAS) survey was designed to measure incidence and prevalence of surgically treatable conditions, including MSD, in patients in LMICs.

https://www.ncbi.nlm.nih.gov/pubmed/27568652