Effect of Tumor Necrosis Factor Inhibitors on Hip Involvement in Ankylosing Spondylitis: Is Structural Repair Possible?

We read with interest the published manuscript by Konsta et al1 assessing the prevalence of hip involvement in patients with ankylosing spondylitis (AS) and its associated factors. Hip involvement was found in 38% of cases, and it was associated with the presence of syndesmophytes and peripheral arthritis.