A Comparative Evaluation of Conventional Instrumentation and Accelerometer-Based Navigation in the Practice of a High-Volume Unicompartmental Knee Arthroplasty (UKA) Surgeon
Background: Component malpositioning and joint malalignment following unicompartmental knee arthroplasty (UKA) increase the risk for revision. This study investigates whether accelerometer-based navigation (NAV) decreases radiographic outliers with respect to component placement and joint alignment...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Arthroplasty Today |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352344123001772 |
| _version_ | 1797377822770069504 |
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| author | Jeremiah M. Taylor, BS Jay N. Patel, DO Christopher J. Mazzei, BS Adam A. Sassoon, MD, MS |
| author_facet | Jeremiah M. Taylor, BS Jay N. Patel, DO Christopher J. Mazzei, BS Adam A. Sassoon, MD, MS |
| author_sort | Jeremiah M. Taylor, BS |
| collection | DOAJ |
| description | Background: Component malpositioning and joint malalignment following unicompartmental knee arthroplasty (UKA) increase the risk for revision. This study investigates whether accelerometer-based navigation (NAV) decreases radiographic outliers with respect to component placement and joint alignment in comparison to conventional instrumentation in UKA. Methods: A radiographic review of UKAs was performed by a single surgeon following adoption of an accelerometry-guided navigation system (OrthAlign, Aliso Viejo, CA). This cohort was then compared to previous patients undergoing UKA with conventional instrumentation. Six-week postoperative radiographs were used to compare femoral coronal and sagittal angles, tibial coronal and sagittal angles, the net coronal angle, tibial component rotation, and medial tibial overhang. Outliers in implant positioning were compared between groups. Patient variables including age, gender, body mass index, American Society of Anesthesiology, and surgical time (incision until the start of closure) were also compared between groups. Results: Eighty-eight UKA’s were reviewed (49 conventional instrumentation [CI] patients; 39 NAV patients). Using 2-sample t-tests, no significant differences were found in patient demographics, radiographic parameters, and operative times between the CI and NAV cohorts. Using chi-squared tests, no significant difference was found in the number of radiographic outliers between the CI and NAV cohorts. Conclusions: Our study found that a high-volume UKA surgeon achieved a low rate of radiographic outliers in both NAV and CI cohorts. This data suggests that NAV is no different from conventional instrumentation with respect to implant positioning, overall joint alignment, and operative time when used by a high-volume UKA surgeon. |
| first_indexed | 2024-03-08T19:58:57Z |
| format | Article |
| id | doaj.art-35d95e11adf74e29ac318b40e36f808d |
| institution | Directory Open Access Journal |
| issn | 2352-3441 |
| language | English |
| last_indexed | 2024-03-08T19:58:57Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Arthroplasty Today |
| spelling | doaj.art-35d95e11adf74e29ac318b40e36f808d2023-12-24T04:45:50ZengElsevierArthroplasty Today2352-34412023-12-0124101272A Comparative Evaluation of Conventional Instrumentation and Accelerometer-Based Navigation in the Practice of a High-Volume Unicompartmental Knee Arthroplasty (UKA) SurgeonJeremiah M. Taylor, BS0Jay N. Patel, DO1Christopher J. Mazzei, BS2Adam A. Sassoon, MD, MS3Department of Orthopaedic Surgery, University of California Los Angeles, Los Angeles, CA, USA; Corresponding author. Santa Monica Orthopaedic Surgery, 1225 15th Street, Suite 2100 Santa Monica, CA 90404, USA. Tel.: +1 310 319 1234.Department of Orthopaedic Surgery, University of California Los Angeles, Los Angeles, CA, USADepartment of Orthopedic Surgery, Morristown Medical Center, Morristown, NJ, USADepartment of Orthopaedic Surgery, University of California Los Angeles, Los Angeles, CA, USABackground: Component malpositioning and joint malalignment following unicompartmental knee arthroplasty (UKA) increase the risk for revision. This study investigates whether accelerometer-based navigation (NAV) decreases radiographic outliers with respect to component placement and joint alignment in comparison to conventional instrumentation in UKA. Methods: A radiographic review of UKAs was performed by a single surgeon following adoption of an accelerometry-guided navigation system (OrthAlign, Aliso Viejo, CA). This cohort was then compared to previous patients undergoing UKA with conventional instrumentation. Six-week postoperative radiographs were used to compare femoral coronal and sagittal angles, tibial coronal and sagittal angles, the net coronal angle, tibial component rotation, and medial tibial overhang. Outliers in implant positioning were compared between groups. Patient variables including age, gender, body mass index, American Society of Anesthesiology, and surgical time (incision until the start of closure) were also compared between groups. Results: Eighty-eight UKA’s were reviewed (49 conventional instrumentation [CI] patients; 39 NAV patients). Using 2-sample t-tests, no significant differences were found in patient demographics, radiographic parameters, and operative times between the CI and NAV cohorts. Using chi-squared tests, no significant difference was found in the number of radiographic outliers between the CI and NAV cohorts. Conclusions: Our study found that a high-volume UKA surgeon achieved a low rate of radiographic outliers in both NAV and CI cohorts. This data suggests that NAV is no different from conventional instrumentation with respect to implant positioning, overall joint alignment, and operative time when used by a high-volume UKA surgeon.http://www.sciencedirect.com/science/article/pii/S2352344123001772Accelerometer-based navigationRadiographic outliers |
| spellingShingle | Jeremiah M. Taylor, BS Jay N. Patel, DO Christopher J. Mazzei, BS Adam A. Sassoon, MD, MS A Comparative Evaluation of Conventional Instrumentation and Accelerometer-Based Navigation in the Practice of a High-Volume Unicompartmental Knee Arthroplasty (UKA) Surgeon Arthroplasty Today Accelerometer-based navigation Radiographic outliers |
| title | A Comparative Evaluation of Conventional Instrumentation and Accelerometer-Based Navigation in the Practice of a High-Volume Unicompartmental Knee Arthroplasty (UKA) Surgeon |
| title_full | A Comparative Evaluation of Conventional Instrumentation and Accelerometer-Based Navigation in the Practice of a High-Volume Unicompartmental Knee Arthroplasty (UKA) Surgeon |
| title_fullStr | A Comparative Evaluation of Conventional Instrumentation and Accelerometer-Based Navigation in the Practice of a High-Volume Unicompartmental Knee Arthroplasty (UKA) Surgeon |
| title_full_unstemmed | A Comparative Evaluation of Conventional Instrumentation and Accelerometer-Based Navigation in the Practice of a High-Volume Unicompartmental Knee Arthroplasty (UKA) Surgeon |
| title_short | A Comparative Evaluation of Conventional Instrumentation and Accelerometer-Based Navigation in the Practice of a High-Volume Unicompartmental Knee Arthroplasty (UKA) Surgeon |
| title_sort | comparative evaluation of conventional instrumentation and accelerometer based navigation in the practice of a high volume unicompartmental knee arthroplasty uka surgeon |
| topic | Accelerometer-based navigation Radiographic outliers |
| url | http://www.sciencedirect.com/science/article/pii/S2352344123001772 |
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