Robotic distal locking of intramedullary nailing: Technical description and cadaveric testing. 2017

Martin Panzica, and Eduardo M Suero, and Ralf Westphal, and Musa Citak, and Emmanouil Liodakis, and Nael Hawi, and Max Petri, and Christian Krettek, and Timo Stuebig
Trauma Department, Hannover Medical School, Hannover, Germany.

Interlocked intramedullary nailing is the treatment of choice for femoral shaft fractures. However, distal locking is a technically challenging part of the procedure that can result in distal femoral malrotation and high radiation exposure. We have tested a robotic procedure for robotic distal locking based on the computation of a drilling trajectory on two calibrated fluoroscopic images. Twenty distal holes were attempted in ten cadaveric femur specimens. Successful screw hole drilling was achieved at the first attempt in each of the ten specimens (20 drill holes in total). No failures were recorded. The average total number of images needed was 6.5 +/- 3.6. The average computation time was 16.5+/- 16.0 seconds. Robotic distal locking was feasible in this test and can be integrated into a fully robotic intramedullary nailing procedure.

UI MeSH Term Description Entries
D012016 Reference Values The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality. Normal Range,Normal Values,Reference Ranges,Normal Ranges,Normal Value,Range, Normal,Range, Reference,Ranges, Normal,Ranges, Reference,Reference Range,Reference Value,Value, Normal,Value, Reference,Values, Normal,Values, Reference
D001858 Bone Nails Rods of bone, metal, or other material used for fixation of the fragments or ends of fractured bones. Bone Pins,Bone Nail,Bone Pin,Nail, Bone,Nails, Bone,Pin, Bone,Pins, Bone
D002102 Cadaver A dead body, usually a human body. Corpse,Cadavers,Corpses
D002138 Calibration Determination, by measurement or comparison with a standard, of the correct value of each scale reading on a meter or other measuring instrument; or determination of the settings of a control device that correspond to particular values of voltage, current, frequency or other output. Calibrations
D004867 Equipment Design Methods and patterns of fabricating machines and related hardware. Design, Equipment,Device Design,Medical Device Design,Design, Medical Device,Designs, Medical Device,Device Design, Medical,Device Designs, Medical,Medical Device Designs,Design, Device,Designs, Device,Designs, Equipment,Device Designs,Equipment Designs
D005264 Femoral Fractures Fractures of the femur. Femoral Fracture,Fracture, Femoral,Fractures, Femoral
D005269 Femur The longest and largest bone of the skeleton, it is situated between the hip and the knee. Trochanter,Greater Trochanter,Lesser Trochanter,Femurs,Greater Trochanters,Lesser Trochanters,Trochanter, Greater,Trochanter, Lesser,Trochanters,Trochanters, Greater,Trochanters, Lesser
D005471 Fluoroscopy Production of an image when x-rays strike a fluorescent screen. Fluoroscopies
D005594 Fracture Fixation, Intramedullary The use of nails that are inserted into bone cavities in order to keep fractured bones together. Intramedullary Nailing,Nailing, Intramedullary,Osteosynthesis, Fracture, Intramedullary,Fixation, Intramedullary Fracture,Fixations, Intramedullary Fracture,Fracture Fixations, Intramedullary,Intramedullary Fracture Fixation,Intramedullary Fracture Fixations,Intramedullary Nailings,Nailings, Intramedullary
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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