Category Orthopaedics

Pierre Nicolas Gerdy

Biography Born 1797 Died 1856 Medical Eponyms Gerdy tubercle is the prominence on the lateral side of the proximal tibia where the iliotibial band (ITB) and tibialis anterior muscle attach Gerdy’s Safe Zone () Major Publications Gerdy P-N. Essai de…

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Gissane angle

Gissane Angle [aka *critical angle; critical angle of Gissane], like the Böhler angle, can be used to help determine the presence of a calcaneus fracture on a radiograph.

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Böhler angle

Böhler angle. The angle between line from highest point of anterior process to highest point of posterior facet plus line tangential to superior edge of tuberosity; measured on lateral foot x-ray. Normally 20-40°. If < 20° represents a calcaneal fracture

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Lachman Test

Lachman test is a clinical test used to diagnose injury of the anterior cruciate ligament (ACL). Eponymised to John W Lachman, first described by GC Noulis

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John W Lachman

John W Lachman (1919 – 2007) was an American Orthopedic Surgeon. Eponymously associated with the Lachman test of knee ligament stability