Chronic ileitis with transmural migration of ingested foreign body treated by laparoscopy.

Background: Ingestion of foreign bodies such as fish bone or chicken bone is relatively common in adults; however, resultant transmural migration is extremely rare.

Methods: We present a case of a 79-year-old woman with chronic low-grade abdominal pain, worsening over the last 4 days. Computed tomography revealed segmental small bowel wall thickening with chronic inflammation suggestive of Crohn's ileitis and oral steroids were commenced; only later, ingestion of a foreign body was suspected.

Method for the location of primary wear scars from retrieved metal on metal hip replacements.

Background: Retrieved metal-on-metal acetabular cups are valuable resources in investigating the wear behaviour of failed hip implants, but adequate methods to do so are lacking. To further contribute to addressing this issue, we developed a method to detect the in vivo location of the primary wear scar of an explanted cup.

Methods: We proposed a new method in which thirteen patients with failed metal hip resurfacings were recruited, and their acetabular components retrieved.