Experimental guide wire placement for total shoulder arthroplasty in glenoid models: higher precision for patient-specific aiming guides compared to standard technique without learning curve

Autor: Jana F. Schader, Tobias Helfen, Volker Braunstein, Ben Ockert, Florian Haasters, Ralph Hertel, Norbert Südkamp, Stefan Milz, Christoph M. Sprecher
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: BMC Musculoskeletal Disorders, Vol 25, Iss 1, Pp 1-10 (2024)
Druh dokumentu: article
ISSN: 1471-2474
DOI: 10.1186/s12891-024-07549-0
Popis: Abstract Background Patient-specific aiming devices (PSAD) may improve precision and accuracy of glenoid component positioning in total shoulder arthroplasty, especially in degenerative glenoids. The aim of this study was to compare precision and accuracy of guide wire positioning into different glenoid models using a PSAD versus a standard guide. Methods Three experienced shoulder surgeons inserted 2.5 mm K-wires into polyurethane cast glenoid models of type Walch A, B and C (in total 180 models). Every surgeon placed guide wires into 10 glenoids of each type with a standard guide by DePuy Synthes in group (I) and with a PSAD in group (II). Deviation from planned version, inclination and entry point was measured, as well as investigation of a possible learning curve. Results Maximal deviation in version in B- and C-glenoids in (I) was 20.3° versus 4.8° in (II) (p
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