Precision and Accuracy of the Pre-Surgical Planning of Non-Cemented Total Hip Replacement With Calibrated Digital Images and Acetates

Abstract

BackgroundPre-surgical planning in joint replacements allows an estimation of the size and position of the potential implant before surgery. Currently, there are two methods to estimate the size and position: Analogue and digital. This study aims to demonstrate that the hybrid technique is accurate and precise in pre-surgical planning of non-cemented Total Hip Replacement. MethodsConcordance-type study against a gold standard, as well as inter and intraobserver consistency evaluation of two orthopedic surgeons and two orthopedic surgery residents. Accuracy was calculated with the intraclass correlation coefficient (ICC), afterwards, the same calculation was done taking into account a margin of error of 1 size above and 1 size below. ResultsThirty-eight patients were included in the study. 19 women and 19 men. 22 prostheses (57.89%) were right-lateralized and 16 left (42.11%). 12 prostheses (31.57%) were Stryker and 26 Johnson & Johnson (68.43%) Acetabular cup correlation compared with the gold standard was moderate: ICC reported 0.45 (95% CI, 0.15-0.76). When adjusted by +/-1 size ICC was 0.48 (95% CI, 0.18-0.79). On the other hand, results from the femoral stem reported: ICC 0.85 (95% CI, 0.07-0.98). When adjusted by +/-1 size ICC was 0.86 (95% CI, 0.06-0.99). ConclusionsHybrid templating is a reliable substitute for analog or digital templating. It is quick and inexpensive; better results are observed in the femoral component. The level of expertise of the evaluator did not affect the accuracy of the planning. Level of evidence: Grade IV

Effects of Incontro, Alleanza, Responsabilita, Autonomia Intervention Model Combined with Orem Self-Care Model and the Use of Smart Wearable Devices on Perceived Stress and Self-Efficacy in Patients after Total Hip Arthroplasty

“…Undoubtedly, this adds to the financial burden and suffering of the patient's life. Studies confirm that patients undergoing total hip arthroplasty (THA) are older and less physically capable [ 3 ]. Therefore, early and effective rehabilitation training can avoid joint adhesion, reduce body pain, benefit the recovery of hip joint function, and improve patients' self-care ability [ 4 ].…”