Anterior acetabular retractors and the femoral neurovascular bundle in anterior total hip arthroplasty: a cadaveric study

Stubbs, Trevor; Moon, Andrew S.; Dahlgren, Nicholas; Patel, Harshadkumar; Jha, Aaradhana J.; Shah, Ashish; Naranje, Sameer

doi:10.1007/s00590-019-02611-3

Cited by 7 publications

(1 citation statement)

References 12 publications

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“…1 A). Surgeons need to be aware of the proximity of neurovascular structures in relation to the anterior acetabular retractor in the anterior approach [ 12 ]. The anterior retractor should be placed along the anterior acetabular rim in a cephalad direction to avoid neurovascular injury [ 13 ] (Fig.…”

Section: Introductionmentioning

confidence: 99%

Accuracy of augmented reality with computed tomography-based navigation in total hip arthroplasty

Hasegawa,

Naito,

Tone

et al. 2023

J Orthop Surg Res

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Background Augmented reality (AR) provides the surgeon with direct visualization of radiological images by overlaying them on the patient. This study aimed to evaluate the accuracy of cup placement using a computed tomography (CT)-based AR navigation system. Methods Sixty-five prospectively enrolled patients underwent primary cementless total hip arthroplasty (THA) in a supine position using this novel AR navigation system, and changes in pelvic flexion angle (PFA) were evaluated. Absolute navigation errors were defined as the absolute differences between angles in the intraoperative navigation record and those measured on postoperative CT. Factors affecting the absolute navigation error in cup alignment were determined. Results Mean absolute change in PFA between preoperative CT and reduction was 2.1° ± 1.6°. Mean absolute navigation errors were 2.5° ± 1.7° in radiographic inclination (RI) and 2.5° ± 2.2° in radiographic anteversion (RA). While no factors significantly affecting absolute navigation error were found for RI, absolute change in PFA between preoperative CT and reduction correlated significantly with the absolute navigation error for RA. Conclusion This CT-based navigation system with AR enabled surgeons to place the cup more accurately than was possible by freehand placement during THA in a supine position.

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Section: Introductionmentioning

confidence: 99%