
CT Case 106
A 70 year old woman presents with 12 hours of lower abdominal pain and one episode of haematochaezia at home. CT mesenteric angiogram is performed

A 70 year old woman presents with 12 hours of lower abdominal pain and one episode of haematochaezia at home. CT mesenteric angiogram is performed

Gunnar Wiberg (1902–1988), Swedish orthopaedic surgeon. Centre-edge angle, patellar classification and major contributions to hip dysplasia research.

Centre-edge angle of Wiberg measures lateral acetabular coverage. Review the original 1939 method, later modifications, normal values and definition drift.

Three rapid clinical updates: tenecteplase for stroke, the danger of overshooting blood pressure after ICH, and the new Surviving Sepsis guidelines ACEP won’t endorse.

Evidence-based supplements for shift-workers, including vitamin D, magnesium, omega-3, creatine, and the berberine-PSA trap.

William Henry Trethowan (1882-1934), British orthopaedic surgeon known for fracture surgery, bone grafting, foot surgery and the historical Trethowan sign

Trethowan sign is a historical SCFE radiographic sign linked to William Henry Trethowan. Review its uncertain origin, evolving definition and relation to Klein line.

Reimers migration percentage quantifies lateral hip displacement in children. Review the original 1980 method, Perkins line, modern variants and clinical use.

Jørgen Reimers (1931-2008), Danish paediatric orthopaedic surgeon. Reimers migration percentage for surveillance of hip displacement in cerebral palsy.

Armin Klein (1892–1954), American orthopaedic surgeon known for Klein line and work on slipped capital femoral epiphysis, scoliosis and paediatric orthopaedics.

Klein line is an AP hip radiographic sign used in suspected SCFE. Review the original description, modern interpretation, limitations and modified Klein line.

Dietrich Tönnis (1927-2010), German paediatric orthopaedic surgeon known for the Tönnis angle, Tönnis classification, triple pelvic osteotomy and work on hip dysplasia.