The ADAPT system by Stryker is introduced in the orthopedic department (at Aarhus University Hospital). Following the introduction of the ADAPT system all pertrochanteric fractures operated with a gamma3 nail by stryker are operated with the use of the ADAPT system. Following surgery the operating surgeon fill out a questionaire on the use of ADAPT.

At the ortopedic department, Aarhus University Hospital pertrochanteric fractures are mostly operated with the gamma3 system by Stryker.

The ADAPT system is software based instrumentation designed for use in Gamma3 surgery. The software assists the surgeon with implant alignment, lag screw length determination, lag screw positioning and distal targeting. ADAPT is the only augmented reality instrumentation of its kind.

From March 1, 2021 it becomes mandatory for all orthopedic surgeons at the department to use the ADAPT system when operating pertrochanteric fractures with a gamma3 nail. Following surgery the operating surgeon will fill out the System Usability Scale questionaire and an additional 3 questions.

Inclusion Criteria:

• Surgeons who operated patients with pertrochanteric fractures with the use of a gamma3 nail

Exclusion Criteria:

• none

Surgeons who operated patients with pertrochanteric fractures with the use of a gamma3 nail

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