“…There is a clear similarity between the aforementioned sources of ongoing pain after hip replacement and those reported in relation to persistence of pain after knee replacement. Since 1989, several authors have reported the use of arthroscopy as a diagnostic and therapeutic tool in painful complications of knee implants, Wasilewski being the earliest (Bocell et al, 1991;Johnson et al, 1990;Lawrence & Kan, 1992;Lucas et al, 1999;Markel et al, 1996;Scranton, 2001;Tzagarakis et al, 2001;Wasilewski & Frankl, 1989a, 1989b. The use of arthroscopy in selected patients with hip implants represents a step forward in diagnosis and possible treatment of painful, apparently well implanted prostheses (Cuéllar et al, 2009;McCarthy et al, 2009;Bajwa & Villar, 2011).…”