Summary: Robotic-assisted technology in total knee arthroplasty (TKA) aims to increase implantation accuracy. Postoperatively, Perth CT protocol is a valid measurement technique in determining both femoral and tibial component alignments. The aim of this study was to evaluate the accuracy of intraoperative component alignment by robotic-assisted TKA through CT validation.

Background

Robotic-assisted technology in total knee arthroplasty (TKA) aims to increase implantation accuracy, with real-time data being used to estimate intraoperative component alignment. Postoperatively, Perth computed tomography (CT) protocol is a valid measurement technique in determining both femoral and tibial component alignments. The aim of this study was to evaluate the accuracy of intraoperative component alignment by robotic-assisted TKA through CT validation.

Methods

total of 33 patients underwent TKA using the MAKO robotic-assisted TKA system. Intraoperative measurements of both femoral and tibial component placements, as well as limb alignment as determined by the MAKO software were recorded. Independent postoperative Perth CT protocol was obtained (n=29) and compared with intraoperative values.

Results

Mean absolute difference between intraoperative and postoperative measurements for the femoral component were 1.17 degrees (1.10) in the coronal plane, 1.79 degrees (1.12) in the sagittal plane, and 1.90 degrees (1.88) in the transverse plane. Mean absolute difference between intraoperative and postoperative measurements for the tibial component were 1.03 degrees (0.76) in the coronal plane and 1.78 degrees (1.20) in the sagittal plane. Mean absolute difference of limb alignment was 1.29 degrees (1.25), with 93.10% of measurements <3 degrees of postoperative CT measurements.

Conclusion

Overall, intraoperatively measured component alignment as estimated by the MAKO robotic-assisted TKA system is comparable to CT-based measurements.

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Radiographic Landmarks For The Femoral Attachment Of The Medial Patellofemoral Complex ePoster Presentation Rohan Bhimani, MD, MBA, UNITED STATES Soheil Ashkani-Esfahani, MD, UNITED STATES Karina Mirochnik, BS, UNITED STATES Bart B Lubberts, MD, PhD, UNITED STATES Christopher W DiGiovanni, MD, UNITED STATES Miho J. Tanaka, MD, PhD, UNITED STATES
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Minimum 10-Year Clinical Outcome Of Lateral Collagen Meniscus Implants (Cmi) For The Replacement Of Partial Lateral Meniscus Defects. ePoster Presentation Alberto Grassi, PhD, ITALY Gian Andrea Lucidi, MD, ITALY Giuseppe Filardo, MD, PhD, MBA, Prof., ITALY Paolo Bulgheroni, MD, ITALY Erica Bulgheroni, MD, ITALY Luca Macchiarola, MD, ITALY Piero Agostinone, MD, QATAR Giacomo Dal Fabbro, ITALY Stefano Zaffagnini, MD, Prof., ITALY
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Outcomes of Quadriceps Tendon Anterior Cruciate Ligament Reconstruction in Skeletally Immature Patients: 2-year Follow-Up ePoster Presentation Frank A. Cordasco, MD, MS, UNITED STATES Sofia Hidalgo Perea, BS, UNITED STATES Daniel W. Green, MD, MS, UNITED STATES
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In Vivo load measurement in wakeboarding: Implication for load control and prevention. ePoster Presentation Thomas Tischer, Prof. Dr., GERMANY Nina Neuse, cand.med., GERMANY Xiping Ren, MD, GERMANY Christoph Lutter, MD, GERMANY Frank Sander, MD, GERMANY
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Mind the anterior root of the lateral meniscus. A biomechancial perspective. ePoster Presentation Alejandro Espejo-Reina, MD, MSc, SPAIN María Prado-Novoa, MEng, PhD, SPAIN Ana Pérez-Blanca, PhD, SPAIN Belén Estebánez, MEng, SPAIN Álvaro Raya-Herrero, MEng, SPAIN María Josea Espejo-Reina, MD, SPAIN Alejandro Espejo-Baena, MD, SPAIN
Dislocated Hinge Fractures Predispose for Malunion after Lateral Closing Wedge Distal Femoral Osteotomy Abstract Presentation 6 minutes Marco-Christopher Rupp, MD, GERMANY Philipp Wilhelm Winkler, MD, Assoc. Prof., AUSTRIA Patricia Maria Lutz, MD, GERMANY Markus Irger, MD, GERMANY Philipp Forkel, MD, GERMANY Andreas B. Imhoff, MD, Prof. Emeritus, GERMANY Matthias Feucht, MD, GERMANY
10 Years Results Of Biological ACL Repair For Partial Tears ePoster Presentation Alberto Gobbi, MD, FRACS, ITALY Macarena Morales, MD, ITALY Gabriel Azzini, MD, ITALY Ignacio Dallo, MD, SPAIN
ACL injury associated meniscus tears in pediatric and adolescent patients: incidence, management and outcome ePoster Presentation Luca Rigamonti, MD, UNITED STATES Nathaniel Bates, PhD, UNITED STATES Nathan Schilaty, DC, PhD, UNITED STATES Michael J. Stuart, MD, UNITED STATES Marco Bigoni, ITALY Todd A Milbrandt, MD Aaron J. Krych, MD, UNITED STATES
Caton-Deschamps Index – A Predictor Of Outcome In Patients With Patellofemoral Instability? ePoster Presentation Joseph Michael Brutico, BS, UNITED STATES Ryan W. Paul, BS, UNITED STATES Margaret Wright, MD, UNITED STATES Meghan E. Bishop, MD, UNITED STATES Brandon Erickson, MD, UNITED STATES Kevin Blake Freedman, MD, UNITED STATES Fotios P. Tjoumakaris, MD, UNITED STATES
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Adolescent Pitcher Fatigue: Ulnar Collateral Ligament Stress, Ultrasonographic Assessment of Flexor-Pronator Mass Energy Depletion, and Correlation to Pitch Count ePoster Presentation Manuel F. Schubert, MD, MS, UNITED STATES Tariq Awan, DO, UNITED STATES Aaron David Sciascia, PhD, ATC, PES, SMTC, UNITED STATES Emily G. Figueroa, MS, UNITED STATES Jennifer M. DeMink, PT, DPT, OCS, UNITED STATES David M. Selak, PT, DPT, OCS, UNITED STATES Corey M. Snyder, PT, DPT, OCS, SCS, MTC, CSCS, UNITED STATES Joel Gagnier, ND, MSc, PhD, UNITED STATES Michael T. Freehill, MD, UNITED STATES
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The Extent Of Medial Quadriceps Tendon Femoral Ligament (Mqtfl) Patellar And Quadriceps Attachment: A Pediatric Cadaveric Study ePoster Presentation Tyler Stavinoha, MD, UNITED STATES Sahej Randhawa, BS, UNITED STATES Marc Tompkins, MD, UNITED STATES Henry B. Ellis, MD, UNITED STATES Theodore Ganley, MD, UNITED STATES Kevin G. Shea, MD, UNITED STATES
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The Reliability Of 3-Tesla Mri To Identify Arthroscopic Features Of Meniscus Tears And Its Utility To Predict Meniscus Tear Reparability ePoster Presentation Thomas J. Kremen, MD, UNITED STATES Jason Strawbridge, BS, UNITED STATES Grant Schroeder, BA, UNITED STATES Ignacio Garcia-Mansilla, MD, ARGENTINA Amit Singla, UNITED STATES Benjamin D. Levine, MD, UNITED STATES Kambiz Motamedi, MD, UNITED STATES Kristofer J. Jones, MD, UNITED STATES
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A comparison of the transtibial pullout technique and all-inside meniscal repair in medial meniscus posterior root tear: Prognostic factors and midterm clinical outcomes ePoster Presentation Lika Dzidzishvili, MD, PhD, SPAIN Irene Isabel López-Torres, MD, PhD, SPAIN Jm Arguello, MD, PhD, SPAIN David Sáez, MD, SPAIN Amaya Barberia, MD, SPAIN Emilio Calvo, MD, PhD, MBA, SPAIN
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The Development of the Quantitative Evaluation of Hinge Area and Length after Open Wedge High Tibial Osteotomy ePoster Presentation Kiminari Kataoka, MD, JAPAN Takehiko Matsushita, MD, PhD, JAPAN Kohei Kamada, MD, PhD, UNITED STATES Akiyoshi Mori, JAPAN Kanto Nagai, MD, PhD, JAPAN Daisuke Araki, MD, PhD, JAPAN Noriyuki Kanzaki, MD, PhD, JAPAN Yuichi Hoshino, MD, PhD, JAPAN Ryosuke Kuroda, MD, PhD, JAPAN
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Anterior Cruciate Ligament (Acl) Reconstruction With Lateral Plasty Restores Anterior-Posterior Laxity In The Case Of Concurrent Partial Medial Meniscectomy ePoster Presentation Alberto Grassi, PhD, ITALY Stefano Di Paolo, Eng, PhD, ITALY Nicola Pizza, MD, ITALY Gian Andrea Lucidi, MD, ITALY Giacomo Dal Fabbro, MD, AUSTRALIA Stefano Zaffagnini, MD, Prof., ITALY
A Cross-sectional Analysis Correlating Anatomical Distribution of End-stage Osteoarthritis with Pre and Post-operative Function. Description of a Hybrid Radiological Anatomical Classification and its Clinical Validation. ePoster Presentation Johanna Elliott, MB, BS, B.Med Sci, Master Science, GERMANY Harbeer Ahedi, PhD Biomedical Sciences, AUSTRALIA Justin Eltenn, Medical Student, AUSTRALIA Brett A. Fritsch, MBBS BSc(Med), FRACS, FAOrthA, AUSTRALIA David A. Parker, MBBS, BMedSc, FRACS, AUSTRALIA
Bone Edema On Medial Tibial Plateau Is Associated With Rotatory Instability In Anterior Cruciate Ligament-Deficient Knees ePoster Presentation Piero Agostinone, MD, ITALY Stefano Di Paolo, Eng, PhD, ITALY Alberto Grassi, PhD, ITALY Gian Andrea Lucidi, MD, ITALY Giacomo Dal Fabbro, MD, AUSTRALIA Stefano Zaffagnini, MD, Prof., ITALY
SPECT/CT Helps Predict Degree of Clinical Improvement Following Medial Opening-Wedge High Tibial Osteotomy ePoster Presentation Yong Gyu Sung, MD, KOREA, REPUBLIC OF Man-Soo Kim, MD, PhD, KOREA, REPUBLIC OF Dong-Chul Park, MD, KOREA, REPUBLIC OF Jae Jung Kim, MD, KOREA, REPUBLIC OF Yong In, MD, PhD, KOREA, REPUBLIC OF
Better Healing in Lateral than Medial Meniscal Posterior Root Tears after Transtibial Repair, an MRI-study Abstract Presentation 5 minutes Cathrine Aga, MD, NORWAY Ingerid Baksaas Aasen, MD, NORWAY Nina Jullum Kise, MD, NORWAY Carsten Brocker, MD, NORWAY Stig Heir, MD, PhD, NORWAY
Avoiding Tunnel Convergence for Posterior Meniscal Root Repair During Anterior Cruciate Ligament Reconstruction ePoster Presentation Uriel J. Sanchez-Rangel, BS, UNITED STATES Charles M. Chan, MD, UNITED STATES
Tibial Coverage After Total Knee Arthroplasty: Ct Comparison Between Symmetric And Asymmetric Baseplates ePoster Presentation Thomas Neri, MD, PhD, Prof., FRANCE Elise BOULGAKOFF, Ing, FRANCE Christophe RASCLE, ing, FRANCE Sven Edward Putnis, MB ChB FRCS(Tr&Orth), UNITED KINGDOM Antonio Klasan, MD, PhD, EMBA, FRCS, AUSTRIA Remi Philippot, MD, PhD, Prof, FRANCE
A Stronger Psychological Profile Can Differentiate Patients Who Suffer An Acl Re-Rupture From Patients Who Do Not: A Matched Cohort Study ePoster Presentation Ramana Piussi, PhD, SWEDEN Susanne Beischer, PhD, SWEDEN Roland Thomee, Professor, SWEDEN Christoffer Thomee, RPT, SWEDEN Mikael Sansone, MD, PhD, SWEDEN Kristian Samuelsson, Prof, MD, PhD, MSc, SWEDEN Eric Hamrin Senorski, PT, PhD, Assoc. Prof., SWEDEN
Adjunctive Use of Implant-Mediated Guided Growth with Tension Band Plate in Skeletally Immature Patients with Primary Intra-Articular Knee Pathology ePoster Presentation Bridget K Ellsworth, MD, UNITED STATES Alexandra Hunter Aitchison, UNITED STATES Peter D. Fabricant, MD, MPH, UNITED STATES Daniel W. Green, MD, MS, UNITED STATES
Highest Body Mass Index is Seen in Younger Patients Undergoing Total Knee Arthroplasty with Increased Length of Stay and Risk of Complications ePoster Presentation Jonathan R Manara, BMBS, FRCS (Tr & Orth), UNITED KINGDOM Ben Doughty, MBChB, Bsc, UNITED KINGDOM

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CT Validation of Intraoperative Implant Position and Knee Alignment as Determined by the MAKO Total Knee Arthroplasty System

CT Validation of Intraoperative Implant Position and Knee Alignment as Determined by the MAKO Total Knee Arthroplasty System

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CT Validation of Intraoperative Implant Position and Knee Alignment as Determined by the MAKO Total Knee Arthroplasty System

CT Validation of Intraoperative Implant Position and Knee Alignment as Determined by the MAKO Total Knee Arthroplasty System

Background

Methods

Results

Conclusion