Patient-Specific Instrumentation with Laser-Guide-Navigated THA: Clinical and CT Evaluation of the First 100 Cases

Obtaining a proper position for total hip arthroplasty components is a crucial aspect of implant performance and consequently of patient outcomes. Restoring the original hip center and maintaining the limb length are key factors in reaching the optimal implant positioning. The aim of this study was...

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Main Authors: Leonardo Previ, Edoardo Viglietta, Veronica Giuliani, Federico Corsetti, Andrea Redler, Attilio Speranza, Angelo De Carli, Raffaele Iorio
Format: Article
Language:English
Published: MDPI AG 2023-10-01
Series:Prosthesis
Subjects:
Online Access:https://www.mdpi.com/2673-1592/5/4/77
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author Leonardo Previ
Edoardo Viglietta
Veronica Giuliani
Federico Corsetti
Andrea Redler
Attilio Speranza
Angelo De Carli
Raffaele Iorio
author_facet Leonardo Previ
Edoardo Viglietta
Veronica Giuliani
Federico Corsetti
Andrea Redler
Attilio Speranza
Angelo De Carli
Raffaele Iorio
author_sort Leonardo Previ
collection DOAJ
description Obtaining a proper position for total hip arthroplasty components is a crucial aspect of implant performance and consequently of patient outcomes. Restoring the original hip center and maintaining the limb length are key factors in reaching the optimal implant positioning. The aim of this study was to assess the accuracy and safety of a computed dynamic analysis system that, through patient-specific guides, tries to improve implant positioning and functional orientation according to patients’ spinopelvic mobility and anatomy. A total of 100 consecutive patients were prospectively enrolled. All patients received an Optimized Positioning System dynamic hip preoperative planning schedule. A CT scan protocol follow-up analysis was performed 6 months after surgery. The mean deviations from the planned acetabular inclination and anteversion were 4.3° and 3.8°, respectively. In total, 98% of cases were within ± 10° of the Lewinnek safe zone, both for inclination and anteversion. The height of osteotomy deviated, on average, 1.6 mm. In total, 100% of cases were included within 4 mm of osteotomy. Patient-specific and laser-guided instrumentation was found to be safe and accurately reproduced dynamic planning in terms of the component orientation, osteotomy level, leg length and offset.
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spelling doaj.art-1b0896228c3f4b8299ecf3f7116f1a982023-12-22T14:37:51ZengMDPI AGProsthesis2673-15922023-10-01541111111910.3390/prosthesis5040077Patient-Specific Instrumentation with Laser-Guide-Navigated THA: Clinical and CT Evaluation of the First 100 CasesLeonardo Previ0Edoardo Viglietta1Veronica Giuliani2Federico Corsetti3Andrea Redler4Attilio Speranza5Angelo De Carli6Raffaele Iorio7Orthopaedic Unit, S. Andrea Hospital, University of Rome “La Sapienza”. Via Di Grottarossa 1035, 00189 Rome, ItalyOrthopaedic Unit, S. Andrea Hospital, University of Rome “La Sapienza”. Via Di Grottarossa 1035, 00189 Rome, ItalyOrthopaedic Unit, S. Andrea Hospital, University of Rome “La Sapienza”. Via Di Grottarossa 1035, 00189 Rome, ItalyOrthopaedic Unit, S. Andrea Hospital, University of Rome “La Sapienza”. Via Di Grottarossa 1035, 00189 Rome, ItalyOrthopaedic Unit, S. Andrea Hospital, University of Rome “La Sapienza”. Via Di Grottarossa 1035, 00189 Rome, ItalyOrthopaedic Unit, S. Andrea Hospital, University of Rome “La Sapienza”. Via Di Grottarossa 1035, 00189 Rome, ItalyOrthopaedic Unit, S. Andrea Hospital, University of Rome “La Sapienza”. Via Di Grottarossa 1035, 00189 Rome, ItalyOrthopaedic Unit, S. Andrea Hospital, University of Rome “La Sapienza”. Via Di Grottarossa 1035, 00189 Rome, ItalyObtaining a proper position for total hip arthroplasty components is a crucial aspect of implant performance and consequently of patient outcomes. Restoring the original hip center and maintaining the limb length are key factors in reaching the optimal implant positioning. The aim of this study was to assess the accuracy and safety of a computed dynamic analysis system that, through patient-specific guides, tries to improve implant positioning and functional orientation according to patients’ spinopelvic mobility and anatomy. A total of 100 consecutive patients were prospectively enrolled. All patients received an Optimized Positioning System dynamic hip preoperative planning schedule. A CT scan protocol follow-up analysis was performed 6 months after surgery. The mean deviations from the planned acetabular inclination and anteversion were 4.3° and 3.8°, respectively. In total, 98% of cases were within ± 10° of the Lewinnek safe zone, both for inclination and anteversion. The height of osteotomy deviated, on average, 1.6 mm. In total, 100% of cases were included within 4 mm of osteotomy. Patient-specific and laser-guided instrumentation was found to be safe and accurately reproduced dynamic planning in terms of the component orientation, osteotomy level, leg length and offset.https://www.mdpi.com/2673-1592/5/4/77hip–spineplanningTHApatient specific
spellingShingle Leonardo Previ
Edoardo Viglietta
Veronica Giuliani
Federico Corsetti
Andrea Redler
Attilio Speranza
Angelo De Carli
Raffaele Iorio
Patient-Specific Instrumentation with Laser-Guide-Navigated THA: Clinical and CT Evaluation of the First 100 Cases
Prosthesis
hip–spine
planning
THA
patient specific
title Patient-Specific Instrumentation with Laser-Guide-Navigated THA: Clinical and CT Evaluation of the First 100 Cases
title_full Patient-Specific Instrumentation with Laser-Guide-Navigated THA: Clinical and CT Evaluation of the First 100 Cases
title_fullStr Patient-Specific Instrumentation with Laser-Guide-Navigated THA: Clinical and CT Evaluation of the First 100 Cases
title_full_unstemmed Patient-Specific Instrumentation with Laser-Guide-Navigated THA: Clinical and CT Evaluation of the First 100 Cases
title_short Patient-Specific Instrumentation with Laser-Guide-Navigated THA: Clinical and CT Evaluation of the First 100 Cases
title_sort patient specific instrumentation with laser guide navigated tha clinical and ct evaluation of the first 100 cases
topic hip–spine
planning
THA
patient specific
url https://www.mdpi.com/2673-1592/5/4/77
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