Patient‐specific Instrumentation Affects Rotational Alignment of the Femoral Component in Total Knee Arthroplasty: A Prospective Randomized Controlled Trial
Objective To evaluate whether patient‐specific instrumentation (PSI) improve the accuracy of femoral component rotational alignment with respect to conventionally‐implanted total knee arthroplasty (TKA). Methods Twenty‐four patients were randomized to receive a TKA implanted with PSI or conventional...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-02-01
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| Series: | Orthopaedic Surgery |
| Subjects: | |
| Online Access: | https://doi.org/10.1111/os.12420 |
| _version_ | 1828868062989778944 |
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| author | Davide Cucchi Alessandra Menon Alberto Aliprandi Giulia Soncini Beatrice Zanini Vincenza Ragone Riccardo Compagnoni Paolo Ferrua Chiara Fossati Pietro Randelli |
| author_facet | Davide Cucchi Alessandra Menon Alberto Aliprandi Giulia Soncini Beatrice Zanini Vincenza Ragone Riccardo Compagnoni Paolo Ferrua Chiara Fossati Pietro Randelli |
| author_sort | Davide Cucchi |
| collection | DOAJ |
| description | Objective To evaluate whether patient‐specific instrumentation (PSI) improve the accuracy of femoral component rotational alignment with respect to conventionally‐implanted total knee arthroplasty (TKA). Methods Twenty‐four patients were randomized to receive a TKA implanted with PSI or conventional instrumentation. Implant orientation was compared on Computed Tomography (CT). Surgical time, recuts, and component size variations from planning were recorded. Preoperative and postoperative Oxford knee score and visual analogue scale were compared to assess clinical outcomes. Results Femoral components implanted with patient‐specific instrumentation were aligned with greater external rotation than those implanted with conventional instrumentation (P = 0.022). No significant differences were found in surgical times, number of recuts, and clinical outcomes. Surgeon modifications from the planned size were necessary in 58% of PSI cases. Conclusion Femoral components implanted with PSI had greater external rotation than with conventional instrumentation. Surgeons must carefully evaluate component sizes when using PSI, both in planning and during surgery. |
| first_indexed | 2024-12-13T05:23:49Z |
| format | Article |
| id | doaj.art-eb269906359243dabd41644ab94c004d |
| institution | Directory Open Access Journal |
| issn | 1757-7853 1757-7861 |
| language | English |
| last_indexed | 2024-12-13T05:23:49Z |
| publishDate | 2019-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | Orthopaedic Surgery |
| spelling | doaj.art-eb269906359243dabd41644ab94c004d2022-12-21T23:58:15ZengWileyOrthopaedic Surgery1757-78531757-78612019-02-01111758110.1111/os.12420Patient‐specific Instrumentation Affects Rotational Alignment of the Femoral Component in Total Knee Arthroplasty: A Prospective Randomized Controlled TrialDavide Cucchi0Alessandra Menon1Alberto Aliprandi2Giulia Soncini3Beatrice Zanini4Vincenza Ragone5Riccardo Compagnoni6Paolo Ferrua7Chiara Fossati8Pietro Randelli9Department of Orthopaedics and Trauma Surgery University Hospital Bonn Bonn GermanyLaboratory of Applied Biomechanics, Department of Biomedical Sciences for Health University of Milan Monza ItalyZucchi Clinical Institutes Monza ItalyIRCCS Policlinico San Donato San Donato ItalyIRCCS Policlinico San Donato San Donato ItalyIRCCS Policlinico San Donato San Donato Italy1° Clinica Ortopedica, ASST Centro Specialistico Ortopedico Traumatologico Gaetano Pini‐CTO Monza ItalyDepartment of Knee Surgery Azienda Socio Sanitaria Territoriale Centro Specialistico Ortopedico Traumatologico Gaetano Pini‐CTO MilanLaboratory of Applied Biomechanics, Department of Biomedical Sciences for Health University of Milan Monza ItalyLaboratory of Applied Biomechanics, Department of Biomedical Sciences for Health University of Milan Monza ItalyObjective To evaluate whether patient‐specific instrumentation (PSI) improve the accuracy of femoral component rotational alignment with respect to conventionally‐implanted total knee arthroplasty (TKA). Methods Twenty‐four patients were randomized to receive a TKA implanted with PSI or conventional instrumentation. Implant orientation was compared on Computed Tomography (CT). Surgical time, recuts, and component size variations from planning were recorded. Preoperative and postoperative Oxford knee score and visual analogue scale were compared to assess clinical outcomes. Results Femoral components implanted with patient‐specific instrumentation were aligned with greater external rotation than those implanted with conventional instrumentation (P = 0.022). No significant differences were found in surgical times, number of recuts, and clinical outcomes. Surgeon modifications from the planned size were necessary in 58% of PSI cases. Conclusion Femoral components implanted with PSI had greater external rotation than with conventional instrumentation. Surgeons must carefully evaluate component sizes when using PSI, both in planning and during surgery.https://doi.org/10.1111/os.12420AlignmentKnee replacementPatient SpecificRandomizedRotation |
| spellingShingle | Davide Cucchi Alessandra Menon Alberto Aliprandi Giulia Soncini Beatrice Zanini Vincenza Ragone Riccardo Compagnoni Paolo Ferrua Chiara Fossati Pietro Randelli Patient‐specific Instrumentation Affects Rotational Alignment of the Femoral Component in Total Knee Arthroplasty: A Prospective Randomized Controlled Trial Orthopaedic Surgery Alignment Knee replacement Patient Specific Randomized Rotation |
| title | Patient‐specific Instrumentation Affects Rotational Alignment of the Femoral Component in Total Knee Arthroplasty: A Prospective Randomized Controlled Trial |
| title_full | Patient‐specific Instrumentation Affects Rotational Alignment of the Femoral Component in Total Knee Arthroplasty: A Prospective Randomized Controlled Trial |
| title_fullStr | Patient‐specific Instrumentation Affects Rotational Alignment of the Femoral Component in Total Knee Arthroplasty: A Prospective Randomized Controlled Trial |
| title_full_unstemmed | Patient‐specific Instrumentation Affects Rotational Alignment of the Femoral Component in Total Knee Arthroplasty: A Prospective Randomized Controlled Trial |
| title_short | Patient‐specific Instrumentation Affects Rotational Alignment of the Femoral Component in Total Knee Arthroplasty: A Prospective Randomized Controlled Trial |
| title_sort | patient specific instrumentation affects rotational alignment of the femoral component in total knee arthroplasty a prospective randomized controlled trial |
| topic | Alignment Knee replacement Patient Specific Randomized Rotation |
| url | https://doi.org/10.1111/os.12420 |
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