Osirix md 11

In order to determine interobserver variability, investigator triangulation was employed: two trained observers (neurosurgical resident TK and radiologic resident NŻ) were presented with a uniform PowerPoint slideshow (Microsoft, Redmond, USA) illustrating measurement methodology as well as caveats of possibly difficult cases to ensure harmonious technique. The slideshow was ended with a preliminary test of ten exemplary cases, followed by debriefing and a question-and-answer session afterward. For quantitative assessment of interobserver reproducibility, kappa statistic (κ₁) evaluating agreement between TK and NŻ was calculated. On the other hand, intraobserver variability was established by re-measuring cases after a period of two to three months. For this, another kappa statistic (κ₂) was calculated. For estimation of inter-software agreement coefficient, the same cases were re-measured using another software—OsiriX MD 11.0 (Pixmeo SARL, Bernex, Switzerland).

Only lateral radiographic projections at 135° were considered when assessing the osteotomy site healing. All patients were randomly assigned a number and their radiographs had the same number; this evaluation was independently performed by two observers that did not know whether the dog had received PRGF or not, using the commercial software OsiriX MD 11.0 (PIXMEO SARL, Geneva, Switzerland) (open-source software; osirixviewer.com">www.osirixviewer.com (accessed on 24 May 2021)).
The evaluation of the osteotomy site healing was conducted using a score on a scale ranging from 0–4, according to a previously published study [41 (link)], which we adapted for our technique. The sites were defined as the region of osteotomy proximal to the cage, the region of the cage, and the region of osteotomy distal to the cage. A 0–4 scale was used, with 0 indicating no osseous healing; 1 representing early bone production without bridging between the tibial tuberosity and the shaft of the tibia; 2 indicating bridging bone formation at one site; 3 indicating bridging bone at two sites; 4 representing bridging bone at all three sites.
Follow-up complications and observations were also described.