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Ma N, Sun P, Xin P, Zhong S, Xie J, Xiao L. Comparison of the efficacy and safety of MAKO robot-assisted total knee arthroplasty versus conventional manual total knee arthroplasty in uncomplicated unilateral total knee arthroplasty a single-centre retrospective analysis. INTERNATIONAL ORTHOPAEDICS 2024; 48:2351-2358. [PMID: 38874668 PMCID: PMC11347482 DOI: 10.1007/s00264-024-06234-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Accepted: 05/31/2024] [Indexed: 06/15/2024]
Abstract
PURPOSE To compare the efficacy and safety of MAKO robot-assisted total knee arthroplasty (MA-TKA) with conventional manual total knee arthroplasty (CM-TKA) in patients with end-stage knee osteoarthritis (KOA) during the early postoperative period. METHOD A retrospective analysis was conducted on 22 patients with KOA who underwent MA-TKA and 26 patients who underwent CM-TKA from April 2023 to July 2023. Hip-knee-ankle angle (HKA), lateral distal femoral angle (LDFA), medial proximal tibial angle (MPTA), American Knee Society Score (AKSS), Forgotten Joint Score-12 (FJS-12), visual analogue scale (VAS), and postoperative complications were recorded and compared between the two groups. RESULT Both groups successfully completed the surgeries. In terms of radiographic parameters, postoperative one month LDFA and HKA in the MA-TKA group were significantly lower than those in the CM-TKA group (P < 0.05). At the one month follow-up, 19 patients (86.4%) in the MA-TKA group had an HKA less than 3°, compared to 20 patients (76.9%) in the CM-TKA group. Clinically, VAS scores at 24 h, 48 h, and 72 h postoperatively were lower in the MA-TKA group both at rest and during activity. At one month and three months postoperatively, AKSS Function Scores and FJS-12 scores in the MA-TKA group were significantly higher than those in the CM-TKA group (P < 0.05). Regarding postoperative complications, no complications occurred in the MA-TKA group, while one patient in the CM-TKA group experienced postoperative knee stiffness, which resolved after physical therapy, with no statistically significant difference (P > 0.05). CONCLUSION Compared with conventional manual total knee arthroplasty, MAKO robot-assisted TKA demonstrates better short-term clinical efficacy, achieves better alignment planning, and maintains good safety.
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Affiliation(s)
- Nanshan Ma
- Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
- Department of Orthopedic Surgery, Shanghai Guanghua Hospital of Integrative Medicine, Shanghai, People's Republic of China
| | - Pengfei Sun
- Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
- Department of Orthopedic Surgery, Shanghai Guanghua Hospital of Integrative Medicine, Shanghai, People's Republic of China
| | - Pengfei Xin
- Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
- Department of Orthopedic Surgery, Shanghai Guanghua Hospital of Integrative Medicine, Shanghai, People's Republic of China
| | - Sheng Zhong
- Department of Orthopedic Surgery, Shanghai Guanghua Hospital of Integrative Medicine, Shanghai, People's Republic of China
| | - Jun Xie
- Department of Orthopedic Surgery, Shanghai Guanghua Hospital of Integrative Medicine, Shanghai, People's Republic of China
| | - Lianbo Xiao
- Department of Orthopedic Surgery, Shanghai Guanghua Hospital of Integrative Medicine, Shanghai, People's Republic of China.
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Zambianchi F, Matveitchouk N, Pavesi M, Clemenza S, Cuoghi Costantini R, Marcovigi A, Seracchioli S, Catani F. Small deviations between planned and performed bone cuts using a CT-based robotic-arm-assisted total knee arthroplasty system. Knee Surg Sports Traumatol Arthrosc 2024; 32:1539-1547. [PMID: 38572678 DOI: 10.1002/ksa.12171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 03/19/2024] [Accepted: 03/21/2024] [Indexed: 04/05/2024]
Abstract
PURPOSE Computed tomography (CT)-based robotic system for total knee arthroplasty (TKA) has shown improved accuracy compared to conventional. This study was designed to (1) confirm the accuracy of the robotic system in achieving the plan and (2) establish the alignment and positioning deviation between final components and planning, by measuring the discrepancy between final implant alignment and the corresponding planned cut. METHODS Ninety-six cementless robotic-arm assisted (RA) TKAs were assessed. Bone resections were performed using the haptically controlled robotic arm. Alignment in the coronal and sagittal plane and resection depth of the distal femoral and proximal tibial cuts were recorded with a navigation planar probe. After final components were impacted, the probe was positioned on each implant surface to determine its alignment and positioning. RESULTS The mean tibial resections and implanted tibial component's positioning were 0.4 mm (standard deviation, SD: 0.6) and 0.9 mm (SD: 0.8), respectively, higher than planned (p < 0.01). The tibial sagittal cut had 19/96 cases (19.8%) of ±1° outliers from plan. In 40/96 cases (41.7%), the tibial component was more prominent than planned of more than 1 mm. The mean femoral resections and impacted femoral component's positioning was 0.1 mm (SD: 0.8) and 0.2 mm (SD: 0.7), respectively, higher than planned. In 23/96 cases (24.0%), the femoral sagittal cut and femoral component coronal alignment deviated more than ±1° from plan. CONCLUSIONS The computed tomography-based robotic-assisted TKA system showed good accuracy regarding bone preparation and component's positioning relative to the planning. Cementless tibial component impaction resulted in the most deviation from plan, with a large proportion of cases resulting in being more prominent than planned. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Francesco Zambianchi
- Department of Orthopaedic Surgery, Azienda Ospedaliero Universitaria di Modena, University of Modena and Reggio-Emilia, Modena, Italy
| | - Nikita Matveitchouk
- Department of Orthopaedic Surgery, Azienda Ospedaliero Universitaria di Modena, University of Modena and Reggio-Emilia, Modena, Italy
| | | | - Sebastiano Clemenza
- Department of Orthopaedic Surgery, Azienda Ospedaliero Universitaria di Modena, University of Modena and Reggio-Emilia, Modena, Italy
| | - Riccardo Cuoghi Costantini
- Department of Medical and Surgical Sciences for Mother, Child and Adult, University of Modena and Reggio-Emilia, Modena, Italy
| | - Andrea Marcovigi
- Department of Orthopaedic Surgery, Azienda Ospedaliero Universitaria di Modena, University of Modena and Reggio-Emilia, Modena, Italy
| | - Stefano Seracchioli
- Department of Orthopaedic Surgery, Azienda Ospedaliero Universitaria di Modena, University of Modena and Reggio-Emilia, Modena, Italy
| | - Fabio Catani
- Department of Orthopaedic Surgery, Azienda Ospedaliero Universitaria di Modena, University of Modena and Reggio-Emilia, Modena, Italy
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Yang HY, Yoon TW, Kim JY, Seon JK. Radiologic Assessment of Knee Phenotypes Based on the Coronal Plane Alignment of the Knee Classification in a Korean Population. Clin Orthop Surg 2024; 16:422-429. [PMID: 38827768 PMCID: PMC11130633 DOI: 10.4055/cios23250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 10/21/2023] [Accepted: 10/21/2023] [Indexed: 06/05/2024] Open
Abstract
Background The Coronal Plane Alignment of the Knee (CPAK) classification system has been developed as a comprehensive system that describes 9 coronal plane phenotypes based on constitutional limb alignment and joint line obliquity (JLO). Due to the characteristics of Asian populations, which show more varus and wider distribution in lower limb alignment than other populations, modification of the boundaries of the arithmetic hip-knee-ankle angle (aHKA) and JLO should be considered. The purpose of this study was to determine the knee phenotype in a Korean population based on the original CPAK and modified CPAK classification systems. Methods We reviewed prospectively collected data of 500 healthy and 500 osteoarthritic knees between 2021 and 2023 using radiographic analysis and divided them based on the modified CPAK classification system by widening the neutral boundaries of the aHKA to 0° ± 3° and using the actual JLO as a new variable. Using long-leg standing weight-bearing radiographs, 6 radiographic parameters were measured to evaluate the CPAK type: the mechanical HKA angle, medial proximal tibial angle (MPTA), lateral distal femoral angle (LDFA), aHKA, JLO, and actual JLO. Results From 2 cohorts of 1,000 knees, the frequency distribution representing all CPAK types was different between the healthy and arthritic groups. The most common categories were type II (38.2%) in the healthy group and type I (53.8%) in the arthritic group based on the original CPAK classification. The left and upward shift in the distribution of knee phenotypes in the original classification was corrected evenly after re-establishing the boundaries of a neutral aHKA and the actual JLO. According to the modified CPAK classification system, the most common categories were type II (35.2%) in the healthy group and type I (38.0%) in the arthritic group. Conclusions Although the modified CPAK classification corrected the uneven distribution seen when applying the original classification system in a Korean population, the most common category was type I in Korean patients with osteoarthritic knees in both classification systems. Furthermore, there were different frequencies of knee phenotypes among healthy and arthritic knees.
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Affiliation(s)
- Hong Yeol Yang
- Department of Orthopaedic Surgery, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Hwasun, Korea
| | - Tae Woong Yoon
- Department of Orthopaedic Surgery, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Hwasun, Korea
| | - Joon Yeong Kim
- Department of Orthopaedic Surgery, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Hwasun, Korea
| | - Jong Keun Seon
- Department of Orthopaedic Surgery, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Hwasun, Korea
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Segura-Nuez J, Martín-Hernández C, Segura-Nuez JC, Segura-Mata JC. Methods of alignment in total knee arthroplasty, systematic review. Orthop Rev (Pavia) 2024; 16:117769. [PMID: 38827414 PMCID: PMC11142931 DOI: 10.52965/001c.117769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Accepted: 04/17/2024] [Indexed: 06/04/2024] Open
Abstract
Introduction Although total knee arthroplasty (TKA) is a very frequent surgery, one in five patients is not completely satisfied. Mechanical alignment (MA) is the most popular technique for implanting TKA. However, to improve clinical outcomes, new techniques that aim to rebuild the native alignment of the knee have been developed. Objective The aim of this study is to perform a systematic review of the available clinical trials and observational studies comparing clinical and radiological outcomes of different methods of alignment (kinematic, anatomic, functional) to MA. Methods A systematic review is performed comparing results of patient reported outcome measures (PROMs) questionnaires (WOMAC, OKS, KSS, KOOS, FJS), radiological angles (HKA, mLDFA, MPTA, JLOA, femoral rotation and tibial slope) and range of motion (ROM). Results Kinematic and functional alignment show a slight tendency to obtain better PROMs compared to mechanical alignment. Complication rates were not significantly different between groups. Nevertheless, these results are not consistent in every study. Anatomic alignment showed no significant differences compared to mechanical alignment. Conclusion Kinematic alignment is an equal or slightly better alternative than mechanical alignment for patients included in this study. However, the difference between methods does not seem to be enough to explain the high percentage of dissatisfied patients. Studies implementing lax inclusion and exclusion criteria would be needed to resemble conditions of patients assisted in daily surgical practice. It would be interesting to study patient's knee phenotypes, to notice if any method of alignment is significantly better for any constitutional deviation.
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Affiliation(s)
- Juan Segura-Nuez
- Orthopaedic surgery and Traumatology Hospital Universitario Miguel Servet
| | - Carlos Martín-Hernández
- Orthopaedic surgery and Traumatology Hospital Universitario Miguel Servet
- Orthopaedic surgery and Traumatology Universidad de Zaragoza
| | | | - Julián Carlos Segura-Mata
- Orthopaedic surgery and Traumatology FREMAP Zaragoza
- Orthopaedic surgery and Traumatology Hospital Quirónsalud Zaragoza
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Hiranaka T. Current concept: personalized alignment total knee arthroplasty as a contrast to classical mechanical alignment total knee arthroplasty. ARTHROPLASTY 2024; 6:23. [PMID: 38705976 PMCID: PMC11071279 DOI: 10.1186/s42836-024-00246-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 02/26/2024] [Indexed: 05/07/2024] Open
Abstract
Mechanical alignment (MA) total knee arthroplasty (TKA), with neutral leg alignment, mechanical component alignment, and parallel gaps, has achieved good long-term survival. Patient satisfaction, however, is not always perfect. In contrast to the MA, which aims for an ideal goal for all patients, an alternative has been proposed: kinematic alignment (KA)-TKA. In KA, the articular surface is replicated using components aligning with the three kinematic axes. KA-TKA has been gaining popularity, and in addition to the true or calipered KA, various derivatives, such as restricted KA, soft-tissue respecting KA, and functional alignments, have been introduced. Moreover, the functional approach encompasses several sub-approaches. This somewhat complicated scenario has led to some confusion. Therefore, the terminology needs to be re-organized. The term "personalized alignment (PA)" has been used in contrast to the MA approach, including all approaches other than MA. The term "PA-TKA" should be used comprehensively instead of KA and it represents the recent trends in distinct and unique consideration of each individual case. In addition to a comparison between MA and KA, we suggest that evaluation should be conducted to decide which approach is the best for an individual patient within the "personalized alignment" concept.
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Affiliation(s)
- Takafumi Hiranaka
- Department of Orthopaedic Surgery and Joint Surgery Centre, Takatsuki General Hospital, Osaka, 569-1192, Japan.
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Cozzarelli NF, DeSimone CA, D'Amore T, Sherman MB, Lonner JH. Joint line position change in primary total knee arthroplasty: a radiographic analysis comparing conventional and robotic techniques. INTERNATIONAL ORTHOPAEDICS 2024; 48:1023-1030. [PMID: 37946052 PMCID: PMC10933191 DOI: 10.1007/s00264-023-06031-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 10/30/2023] [Indexed: 11/12/2023]
Abstract
PURPOSE Joint line (JL) position change in total knee arthroplasty (TKA) may alter knee biomechanics and impact function. The purpose of this study was to compare the change in JL position between robotic-assisted TKA (RA-TKA) and conventional TKA (C-TKA). METHODS A retrospective, radiographic analysis was conducted of patients who underwent RA-TKA and C-TKA to compare JL position change. JL position was measured in consecutive RA-TKAs and C-TKAs performed by four fellowship-trained arthroplasty surgeons. Statistical analysis was done utilizing t-tests and Mann Whitney U tests, with statistical significance being defined as a p value < 0.05. RESULTS Six hundred total RA-TKAs and 400 total C-TKAs were included in the analysis. There were no significant differences in patient baseline characteristics such as body mass index, range of motion, and tibiofemoral coronal alignment. RA-TKAs were associated with an average of 0.04 (2.2) mm JL position change, and C-TKAs were associated with an average 0.5 (3.2) mm JL position change (p = 0.030). There were inter-surgeon differences when comparing the change in JL position for RA-TKAs and C-TKAs between the four participating surgeons. CONCLUSION RA-TKA leads to better preservation of the JL position than C-TKA, and this seems to be dependent on the arthroplasty surgeon's preferences and techniques during TKA. Whether this statistically significant difference is clinically relevant needs to be further investigated.
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Affiliation(s)
- Nicholas F Cozzarelli
- Department of Orthopedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University, 125 South 9th Street Suite 1000, Philadelphia, PA, 19107, USA.
| | - Cristian A DeSimone
- Department of Orthopedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University, 125 South 9th Street Suite 1000, Philadelphia, PA, 19107, USA
| | - Taylor D'Amore
- Department of Orthopedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University, 125 South 9th Street Suite 1000, Philadelphia, PA, 19107, USA
| | - Matthew B Sherman
- Department of Orthopedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University, 125 South 9th Street Suite 1000, Philadelphia, PA, 19107, USA
| | - Jess H Lonner
- Department of Orthopedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University, 125 South 9th Street Suite 1000, Philadelphia, PA, 19107, USA
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Diquattro E, Prill R, Salzmann M, Traina F, Becker R. High three-dimensional accuracy of component placement and lower limb alignment using a robotic arm-assisted system and gap-balancing instrument in total knee arthroplasty. Knee Surg Sports Traumatol Arthrosc 2024; 32:685-692. [PMID: 38415872 DOI: 10.1002/ksa.12088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 01/20/2024] [Accepted: 01/23/2024] [Indexed: 02/29/2024]
Abstract
PURPOSE It was hypothesized that robotic arm-assisted total knee arthroplasty (RA-TKA) using additionally a gap-balancing instrumentation will show high accuracy in executing the planning in femoral and tibial component placement throughout the range of knee motion (ROM) during TKA surgery. METHODS Prospectively collected data were analysed for patients undergoing RA-TKA. A cruciate retaining cemented design was implanted using the MAKO® robotic system. Lower limb alignment at 0°, 30°, 45°, 60° and 90° of flexion was recorded at the beginning of surgery and finally after implantation of the components. A ligament tensioner was inserted after tibial precut to measure the extension and flexion gap, and final component placement was planned based on 3D CT images. Femoral and tibial component placement was measured in all three planes. RESULTS A total of 104 patients were included (mean age 69.4 ± 9 years; 44 male, 60 female). The difference in component placement after planning and final implantation showed less valgus of 0.7° ± 1.4° (p < 0.001), less external rotation of 0.6° ± 1.9° (p = 0.001) and less flexion of 0.9° ± 1.8° (p < 0.001) for the femoral component. The tibial component was placed in more varus of 0.2° ± 0.9° (p = 0.056) and more posterior slope of 0.5° ± 0.9° (p < 0.001). The lower limb alignment in extension was 4.4° ± 5.2° of varus of the native knee and changed to 1.2° ± 1.9° of varus after TKA (p < 0.01). CONCLUSION Robotic-assisted TKA helps to achieve the target of alignment and component placement very close to the planning. It allows optimal component placement of off-the-shelf implants respecting patient's specific anatomy. LEVEL OF EVIDENCE Level II.
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Affiliation(s)
- Emanuele Diquattro
- Orthopaedic-Traumatology and Prosthetic Surgery and Revisions of Hip and Knee Implants, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Robert Prill
- Department of Orthopaedics and Traumatology, University Hospital Brandenburg/Havel, Brandenburg Medical School Theodor Fontane, Brandenburg an der Havel, Germany
- Faculty of Health Sciences, Brandenburg Medical School Theodor Fontane, Brandenburg an der Havel, Germany
| | - Mikhail Salzmann
- Department of Orthopaedics and Traumatology, University Hospital Brandenburg/Havel, Brandenburg Medical School Theodor Fontane, Brandenburg an der Havel, Germany
| | - Francesco Traina
- Orthopaedic-Traumatology and Prosthetic Surgery and Revisions of Hip and Knee Implants, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Roland Becker
- Department of Orthopaedics and Traumatology, University Hospital Brandenburg/Havel, Brandenburg Medical School Theodor Fontane, Brandenburg an der Havel, Germany
- Faculty of Health Sciences, Brandenburg Medical School Theodor Fontane, Brandenburg an der Havel, Germany
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MacAskill M, Peluso R, Lash J, Hewett TE, Bullock M, Caughran A. A Three-dimensional Comparison of Pre- and Post-component Position in a Series of Off-label Robotic-assisted Revision Total Knee Arthroplasties. Arthroplast Today 2024; 25:101310. [PMID: 38229867 PMCID: PMC10788208 DOI: 10.1016/j.artd.2023.101310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 11/09/2023] [Accepted: 11/19/2023] [Indexed: 01/18/2024] Open
Abstract
Background The application of robotic-assisted arthroplasty in revision knee scenarios continues to evolve. This study compares the pre- and post-revision implant positions in series of revision total knee arthroplasties (TKA) using a robotic arm system. Methods Twenty-five consecutive off-label robotic-assisted revision TKA were performed. After virtual revision femoral and tibial components were positioned to achieve "balanced" medial and lateral flexion and extension gaps, the existing primary implants (PI) were removed, and bone cuts were executed with the robotic arm system. Preoperative coronal, sagittal, and axial position of the PI was compared to the final planned positions of the robotic revision implants (RRI) for each subject. A repeated measures ANOVA using the absolute difference in millimeters and degrees between the PI and RRI orientation was completed. Results Intra-operatively, the virtual gaps were balanced within the planning software followed by successful execution of the plan. There was a statistically significant difference between posterior condylar offset and tibial component positioning for RRI compared to PI. There was no difference between the distal femoral component values between PI and RRI. Conclusions The sagittal alignment of the revision implants, specifically the femoral posterior condylar offset and tibial component slope, are statistically significant considerations for a stable revision TKA with off-label use of a robotic-arm system. Other potential benefits may include appropriate implant sizing which can affect the resultant ligamentous tension important for a functional revision TKA. Future research and software iterations will be needed to determine the overall accuracy and utility of robotic-assisted revision TKA.
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Affiliation(s)
- Micah MacAskill
- Department of Orthopaedics, Marshall University Joan C. Edwards School of Medicine, Huntington, WV, USA
| | - Richard Peluso
- Department of Orthopaedics, Marshall University Joan C. Edwards School of Medicine, Huntington, WV, USA
| | - Jonathan Lash
- Department of Orthopaedics, Marshall University Joan C. Edwards School of Medicine, Huntington, WV, USA
| | - Timothy E. Hewett
- Department of Orthopaedics, Marshall University Joan C. Edwards School of Medicine, Huntington, WV, USA
| | - Matthew Bullock
- Department of Orthopaedics, Marshall University Joan C. Edwards School of Medicine, Huntington, WV, USA
| | - Alexander Caughran
- Department of Orthopaedics, Marshall University Joan C. Edwards School of Medicine, Huntington, WV, USA
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Dretakis K, Igoumenou VG, Naoum S, Raptis K, Koutserimpas C. Robotic Arm-Assisted Total Knee Arthroplasty: Anatomical Alignment and Mid-Term Outcomes from the First Cohort Originating in Greece. J Long Term Eff Med Implants 2024; 34:55-63. [PMID: 38505894 DOI: 10.1615/jlongtermeffmedimplants.2023048690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
Robotic arm-assisted total knee arthroplasty (RATKA) represents a haptic assistive robotic arm used for bone preparation. The purpose of this study was to present implant survivorship, complications and evaluate patients' satisfaction, clinical and functional outcome of RATKA with a minimum of 1-year follow-up. The Oxford Knee Score was recorded preoperatively and at last follow-up. Patients' satisfaction rates, as well as complications and re-operations were studied. Anatomical alignment including varus, valgus deformities and flexion, extension, pre-and postoperatively were evaluated. A total of 156 patients with mean age = 71.9 years were included in the study. The mean follow-up was 35.7 months, while one revision was performed due to infection. Statistically significant improvement of the Oxford Knee Score, as well as of the knee alignment deformities were recorded, while 99.4% of patients reported to be "very satisfied" or "satisfied" with the procedure. RATKA seems to be a safe, as well as reproductible procedure at short-and mid-term follow-up, while the accurate implant positioning may lead to favorable long-term outcomes.
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Affiliation(s)
- Konstantinos Dretakis
- 2nd Department of Orthopaedics and Traumatology, Hygeia General Hospital of Athens, Athens, Greece
| | | | - Symeon Naoum
- Department of Orthopaedics and Traumatology, 251 Hellenic Air Force General Hospital of Athens, Athens, Greece
| | - Konstantinos Raptis
- 2nd Department of Orthopaedics and Traumatology, Hygeia General Hospital of Athens, Athens, Greece; Department of Orthopaedics and Traumatology, 251 Hellenic Air Force General Hospital of Athens, Athens, Greece
| | - Christos Koutserimpas
- Department of Orthopaedics and Traumatology, 251 Hellenic Air Force General Hospital of Athens, Greece
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Kayani B, Fontalis A, Haddad IC, Donovan C, Rajput V, Haddad FS. Robotic-arm assisted total knee arthroplasty is associated with comparable functional outcomes but improved forgotten joint scores compared with conventional manual total knee arthroplasty at five-year follow-up. Knee Surg Sports Traumatol Arthrosc 2023; 31:5453-5462. [PMID: 37804346 DOI: 10.1007/s00167-023-07578-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 09/04/2023] [Indexed: 10/09/2023]
Abstract
PURPOSE This study reports the five-year functional outcomes from a prospective cohort study comparing robotic-arm assisted total knee arthroplasty (RO TKA) versus conventional manual total knee arthroplasty (CO TKA). METHODS This prospective single-surgeon study included 120 patients with symptomatic end-stage knee arthritis undergoing primary TKA. This included 60 consecutive patients undergoing CO TKA followed by 60 consecutive patients undergoing RO TKA using a semi-automated robotic device. Study patients were reviewed at one, two, and five years after surgery and the following outcomes recorded: The University of California at Los Angeles activity-level (UCLA), Knee Society Score (KSS), Oxford Knee Score (OKS) Forgotten Joint Score (FJS), and any complications. RESULTS There were no statistical differences between RO TKA and CO TKA in the median UCLA score (p = N.S), median KSS (p = N.S), and median OKS (p = N.S) at five-year follow-up. RO-TKA was associated with statistically significant improvements in the FJS at one (p = 0.001), two (p = 0.003), and five (p = 0.025) years of follow-up compared with CO TKA. There was no statistical difference in the incidence of knee stiffness requiring manipulation under anesthesia between the two treatment groups (p = N.S). CONCLUSION Patients in both treatment groups had excellent functional outcomes with comparable patient reported outcomes at five-year follow-up. RO TKA was associated with statistically significant improvements in the FJS compared with CO TKA, but these differences did not reach the minimal clinically important difference at any follow-up interval. There was no overall difference in complications between the two treatment groups at five-year follow-up. LEVEL OF EVIDENCE II (Prospective cohort study).
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Affiliation(s)
- Babar Kayani
- University College Hospital, 235 Euston Road, Bloomsbury, London, NW1 2BU, UK.
| | - Andreas Fontalis
- University College Hospital, 235 Euston Road, Bloomsbury, London, NW1 2BU, UK
| | | | - Christian Donovan
- University College Hospital, 235 Euston Road, Bloomsbury, London, NW1 2BU, UK
| | - Vishal Rajput
- University College Hospital, 235 Euston Road, Bloomsbury, London, NW1 2BU, UK
- Princess Grace Hospital, 42-52 Nottingham Place, Marylebone, London, W1U 5NY, UK
| | - Fares Sami Haddad
- University College Hospital, 235 Euston Road, Bloomsbury, London, NW1 2BU, UK
- Princess Grace Hospital, 42-52 Nottingham Place, Marylebone, London, W1U 5NY, UK
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Manara JR, Goonatillake M, Marley M, Pretty W, Collopy D, Clark G. Virtual assessment of coronal balance prior to bone resection with the MAKO robotic-assisted system accurately predicts final balance in TKA. J Robot Surg 2023; 17:2849-2854. [PMID: 37776492 DOI: 10.1007/s11701-023-01705-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 08/19/2023] [Indexed: 10/02/2023]
Abstract
Total knee arthroplasty (TKA) has traditionally relied on the surgeon's judgement and manual instruments to determine balance. The MAKO robotic system (Stryker Ltd, Kalamazoo, MI, USA) allows assessment of virtual compartmental gaps from CT-derived bone models intra-operatively as a predictor of soft tissue balance that will be achieved, prior to any bony resection. This study aims to assess the accuracy of this pre-resection balancing technique in determining the resultant final soft tissue balance of the TKA. A consecutive prospective cohort of 2027 Robotic-Assisted TKAs (RATKA) were performed between January'17 and March'22. Osteophytes were removed; initial virtual gaps on the virtual bone model were measured at 10° and 90° of flexion prior to bone resections. Optimization of the virtual component positions was then made and final pre-resection gaps were measured. The gaps were then re-assessed post-implantation and compared to the final pre-resection values. Virtual balancing in extension within 1 mm was achieved in 95% of cases. Of those, 98% maintained coronal balance within 1 mm after implantation, with 1.5% requiring a coronal plane soft tissue release. Inability to virtually balance a TKA within 2 mm prior to bone resection resulted in a soft tissue release in 44.4% of cases. The absolute values of the final gaps achieved were a mean of 1.3 mm greater than virtual gaps. The ability to balance a knee on the virtual bone model prior to bone resection, in conjunction with robotic-assisted execution of TKA, consistently achieves a balanced knee after component implantation.
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Affiliation(s)
- J R Manara
- SJOG Healthcare, Perth, WA, Australia
- Aneurin Bevan University Health Board, Caerleon, Wales
| | | | - M Marley
- SJOG Healthcare, Perth, WA, Australia
| | - W Pretty
- Perth Hip & Knee Clinic, 1/1Wexford St, Subiaco, Perth, WA, 6008, Australia
| | - D Collopy
- SJOG Healthcare, Perth, WA, Australia
- Perth Hip & Knee Clinic, 1/1Wexford St, Subiaco, Perth, WA, 6008, Australia
| | - G Clark
- SJOG Healthcare, Perth, WA, Australia.
- Perth Hip & Knee Clinic, 1/1Wexford St, Subiaco, Perth, WA, 6008, Australia.
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12
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Lee SS, Lee J, Alharthi H, Moon YW. Effect of mediolateral gap difference on postoperative outcomes in navigation-assisted total knee arthroplasty using an ultracongruent insert and the medial stabilising technique. Knee Surg Sports Traumatol Arthrosc 2023; 31:3745-3754. [PMID: 36708379 DOI: 10.1007/s00167-023-07324-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 01/16/2023] [Indexed: 01/29/2023]
Abstract
PURPOSE This study was aimed to compare the clinical, functional, and radiographic outcomes between symmetric and asymmetric extension and mediolateral gap balance after navigation-assisted (NA) total knee arthroplasty (TKA) using ultracongruent (UC) insets and the medial stabilising technique (MST). METHODS In all, 363 knees of 275 patients who underwent mechanical alignment-target NA TKA with MST between January 2015 and December 2017 were analysed. Patients were divided into balanced (extension mediolateral gap difference ≤ 2 mm) and tight medial (difference ≥ 3 mm) groups. Pre- and postoperative clinical, functional (range of motion, Western Ontario and McMaster University Osteoarthritis [WOMAC] index, Knee Society Knee Score [KSKS], and Knee Society Function Score [KSFS]) and radiographic (hip-knee-ankle [HKA] angle, femoral condylar offset, extension angle [a minus indicates hyperextension], and joint line distance) outcomes were compared between the groups. Student's t- or Chi-squared test was used to compare the outcomes. RESULTS Among the 363 knees analysed, 279 (77%) were assigned to the balanced group and 84 (23%) to the tight medial group. The preoperative HKA angle was significantly greater in the tight medial group than in the balanced group (9.7° ± 4.1° vs 14.3° ± 4.7°, P < 0.001). The postoperative WOMAC index, KSKS, and KSFS were similar between the groups. The change in the joint line distance was not significantly different (1.5 ± 3.7 vs 2.0 ± 3.3; n.s). CONCLUSION The clinical, functional, and radiographic outcomes, including joint line distance, were comparable between the tight medial and balanced group after mechanical alignment-targeted UC TKA with MST. LEVEL OF EVIDENCE Level III, retrospective comparative study.
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Affiliation(s)
- Sung-Sahn Lee
- Department of Orthopaedic Surgery, Ilsan Paik Hospital, Inje University School of Medicine, Goyangsi, Gyeonggido, Korea
| | - Jeounghun Lee
- Department of Orthopaedic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Ilwon Street, Gangnam-Gu, Seoul, 06351, Korea
| | - Hail Alharthi
- Arthroplasty Division, Taif University, Taif, Saudi Arabia
| | - Young-Wan Moon
- Department of Orthopaedic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Ilwon Street, Gangnam-Gu, Seoul, 06351, Korea.
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13
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Li B, Cunha AB, Lobo MA. Effectiveness and Users' Perceptions of Upper Extremity Exoskeletons and Robot-Assisted Devices in Children with Physical Disabilities: Systematic Review. Phys Occup Ther Pediatr 2023; 44:336-379. [PMID: 37635151 DOI: 10.1080/01942638.2023.2248241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 07/26/2023] [Accepted: 08/02/2023] [Indexed: 08/29/2023]
Abstract
AIM Systematically determine the effectiveness and users' perceptions of upper extremity (UE) exoskeletons and robot-assisted devices for pediatric rehabilitation. METHODS PubMed/Medline, Web of Science, Scopus, and Cochrane Library were searched for studies with "exoskeletons"/"robot-assisted devices", children with disabilities, effectiveness data, and English publication. Intervention effectiveness outcomes were classified within components of the International Classification of Functioning, Disability, and Health, Children and Youth Version (ICF-CY). Secondary data (users' perceptions; implementation setting) were extracted. Risk of bias and methodological quality were assessed. Descriptive analyses were performed. RESULTS Seventy-two articles were included. Most evaluated body structure and function and activity outcomes with less emphasis on participation. Most effects across all ICF-CY levels were positive. Devices were primarily evaluated in clinical or laboratory rather than natural environments. Perceptions about device effectiveness were mostly positive, while those about expression, accessibility, and esthetics were mostly negative. A need for increased rigor in research study design was detected. CONCLUSIONS Across populations, devices, settings, interventions, and dosing schedules, UE exoskeletons and robot-assisted devices may improve function, activity, and perhaps participation for children with physical disabilities. Future work should transition devices into natural environments, design devices and implementation strategies to address users' negative perceptions, and increase research rigor.
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Affiliation(s)
- Bai Li
- Department of Physical Therapy, Biomechanics & Movement Science Program, University of Delaware, Newark, DE, USA
| | - Andrea B Cunha
- Department of Physical Therapy, Biomechanics & Movement Science Program, University of Delaware, Newark, DE, USA
- Department of Physical Therapy, Munroe Meyer Institute, University of Nebraska Medical Center, Omaha, NE, USA
| | - Michele A Lobo
- Department of Physical Therapy, Biomechanics & Movement Science Program, University of Delaware, Newark, DE, USA
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14
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Clark G, Steer R, Khan RN, Collopy D, Wood D. Maintaining joint line obliquity optimizes outcomes of functional alignment in total knee arthroplasty in patients with constitutionally varus knees. J Arthroplasty 2023:S0883-5403(23)00349-2. [PMID: 37061140 DOI: 10.1016/j.arth.2023.04.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 03/18/2023] [Accepted: 04/03/2023] [Indexed: 04/17/2023] Open
Abstract
INTRODUCTION Functional alignment (FA) strives to balance the knee soft-tissue envelope during total knee arthroplasty (TKA) using implant alignment adjustments rather than soft-tissue releases. There is debate on how best to achieve FA. We compared minimum two-year outcomes between FA with a mechanical alignment plan [FA(m)] and FA with a kinematic alignment plan [FA(k)]. The null hypothesis was that there would be no difference in outcomes between FA(m) and FA(k). METHODS Prospective data was collected from 300 consecutive robotic assisted (RA) FA TKAs [135 FA(m) and 165 FA(k)]. Patient reported outcomes were obtained pre-operatively and two years post-operatively. The coronal plane alignment of the knee (CPAK) classification was used to classify knee alignment phenotypes. RESULTS Overall limb alignment was equivalent between groups. Final implant alignment was different between FA(m) and FA(k) groups, with FA(k) TKAs having higher tibial varus (P<0.01), higher femoral valgus (P<0.01), and higher joint line obliquity (P<0.01). Patients reported higher FJS-12 scores with FA(k) TKAs (79.4 versus 71.6, P=0.018), and greater range of motion (125 versus 121°; P=0.003). Patients who had constitutional varus reported the greatest improvement with FA(k) technique (FJS at minimum two years of 89 versus 65; P<0.001). CONCLUSION Utilizing an individualized alignment plan (FA(k)) led to a final implant position with greater joint line obliquity, yet the same overall limb alignment. This was associated with improved outcomes at two years post TKA in patients who had constitutional varus. Three-dimensional component position and joint line obliquity affect outcomes following TKA independent of coronal limb alignment.
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Affiliation(s)
- Gavin Clark
- St John of God Hospital, Salvado Rd, Subiaco, Western Australia, Australia; Perth Hip and Knee Clinic, 1 Wexford St, Subiaco, Western Australia, Australia; University of Western Australia, 35 Stirling Hwy, Crawley, Western Australia, Australia.
| | - Richard Steer
- Gold Coast University Hospital, Department of Orthopaedic Surgery, 1 Hospital Boulevard, Southport, Queensland, Australia; University of Queensland, School of Medicine, St Lucia, Queensland, Australia
| | - R Nazim Khan
- University of Western Australia, 35 Stirling Hwy, Crawley, Western Australia, Australia
| | - Dermot Collopy
- St John of God Hospital, Salvado Rd, Subiaco, Western Australia, Australia; Perth Hip and Knee Clinic, 1 Wexford St, Subiaco, Western Australia, Australia
| | - David Wood
- University of Western Australia, 35 Stirling Hwy, Crawley, Western Australia, Australia
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15
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Functional alignment with robotic‑arm assisted total knee arthroplasty demonstrated better patient-reported outcomes than mechanical alignment with manual total knee arthroplasty. Knee Surg Sports Traumatol Arthrosc 2023; 31:1072-1080. [PMID: 36378291 DOI: 10.1007/s00167-022-07227-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 11/05/2022] [Indexed: 11/17/2022]
Abstract
PURPOSE Given the improved accuracy of robot-assisted surgery, robotic-arm assisted functionally aligned total knee arthroplasty (RFA-TKA) aims to preserve the native pre-arthritic knee biomechanics, to achieve balanced flexion-extension gaps. The purpose of this study was to compare the accuracy of the implant position and short-term clinical outcomes of patients who underwent RFA-TKA vs. mechanically aligned total knee arthroplasty with manual technique (MA-TKA). METHODS A prospectively collected database was reviewed retrospectively for patients who underwent primary TKA. Sixty patients who underwent RFA-TKA between February 2020 and July 2020 were included in the RFA-TKA group. Sixty patients who underwent MA-TKA were included via 1:1 matching for age, sex, and body mass index based on the RFA-TKA group. For radiological evaluation, knee X-rays were used to assess the functional knee phenotype and implant position accuracy by measuring the coronal and sagittal alignment, and these measurements were compared between the two groups. Patient demographic characteristics and patient-reported outcomes including Knee Society scores, Western Ontario and McMaster Universities Arthritis Index, and forgotten joint score-12 were compared between the groups. RESULTS Statistically significant differences were observed in postoperative 2-year clinical outcomes in favor of RFA-TKA group which showed greater accuracy in the tibial component sagittal alignment than MA-TKA (1.0 ± 2.3 vs. 0.7 ± 1.6, respectively; P < 0.001). However, outliers in the component positions were more common in the MA-TKA group, which was statistically significant for the femoral coronal and tibial sagittal alignments (P = 0.017 and 0.015, respectively). CONCLUSIONS Functional alignment in TKA could be accurately obtained with the assistance of a robotic arm, and the results showed greater 2 year postoperative patient-reported outcome and satisfaction than mechanically aligned TKA using manual instruments. LEVEL OF EVIDENCE III.
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16
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Daffara V, Zambianchi F, Bazzan G, Matveitchouk N, Berni A, Piacentini L, Cuoghi Costantini R, Catani F. No difference in clinical outcomes between functionally aligned cruciate-retaining and posterior-stabilized robotic-assisted total knee arthroplasty. INTERNATIONAL ORTHOPAEDICS 2023; 47:711-717. [PMID: 36648533 DOI: 10.1007/s00264-023-05693-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 11/11/2022] [Indexed: 01/18/2023]
Abstract
PURPOSE To compare the clinical outcomes of subjects undergoing primary robotic-assisted total knee arthroplasty (RA-TKA), following functional alignment (FA) principles, with cruciate-retaining (CR) or posterior-stabilized (PS) bearing designs, at a minimum of 24 months of follow-up. METHODS This observational, retrospective study included 167 consecutive patients undergoing RA-TKA with cemented PS and cementless CR implants performed with a CT-base robotic-arm assisted system (Mako, Stryker), following FA principles, between 2017 and 2020. Patients were followed up with a clinical and radiographic assessment and were administered the Forgotten Joint Score-12 (FJS-12), Knee Injury and Osteoarthritis Outcome Score for Joint Replacement (KOOS-JR), and the 5-level Likert scale (5-LLS). RESULTS Three TKA revisions were performed (2 PS, 1 CR); therefore, a total of 164 knees with a mean age of 71.7 years (SD 8.9) were considered (80 cemented PS; 84 cementless CR). No statistically significant differences were recorded between study groups relative to FJS-12, KOOS-JR, and 5-LLS at a minimum of two year follow-up (FJS-12 89.3 ± 9.2 vs 87.5 ± 12.8, p-value 0.46; KOOS-JR 88.8 ± 10.0 vs 86.7 ± 14.0, p-value 0.31; 5-LLS 4.5 ± 0.7 vs 4.5 ± 0.8, p-value 0.34). CONCLUSION No significant outcome differences were reported between patients undergoing PS and CR RA-TKA at a minimum of two year follow-up. RA-TKA achieves excellent clinical results and high satisfaction scores, regardless of the implant design used.
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Affiliation(s)
- Valerio Daffara
- Department of Orthopaedic Surgery, Azienda Ospedaliero Universitaria Di Modena, University of Modena and Reggio-Emilia, Modena, Italy.
| | - Francesco Zambianchi
- Department of Orthopaedic Surgery, Azienda Ospedaliero Universitaria Di Modena, University of Modena and Reggio-Emilia, Modena, Italy
| | - Gabriele Bazzan
- Department of Orthopaedic Surgery, Azienda Ospedaliero Universitaria Di Modena, University of Modena and Reggio-Emilia, Modena, Italy
| | - Nikita Matveitchouk
- Department of Orthopaedic Surgery, Azienda Ospedaliero Universitaria Di Modena, University of Modena and Reggio-Emilia, Modena, Italy
| | - Alessandro Berni
- Department of Orthopaedic Surgery, Azienda Ospedaliero Universitaria Di Modena, University of Modena and Reggio-Emilia, Modena, Italy
| | - Laura Piacentini
- Department of Orthopaedic Surgery, Azienda Ospedaliero Universitaria Di Modena, University of Modena and Reggio-Emilia, Modena, Italy
| | - Riccardo Cuoghi Costantini
- Department of Maternal, Child and Adult Medical and Surgical Sciences, University of Modena and Reggio-Emilia, Modena, Italy
| | - Fabio Catani
- Department of Orthopaedic Surgery, Azienda Ospedaliero Universitaria Di Modena, University of Modena and Reggio-Emilia, Modena, Italy
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17
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MacDessi SJ, Oussedik S, Abdel MP, Victor J, Pagnano MW, Haddad FS. The language of knee alignment : updated definitions and considerations for reporting outcomes in total knee arthroplasty. Bone Joint J 2023; 105-B:102-108. [PMID: 36722056 DOI: 10.1302/0301-620x.105b2.bjj-2022-1345] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Orthopaedic surgeons are currently faced with an overwhelming number of choices surrounding total knee arthroplasty (TKA), not only with the latest technologies and prostheses, but also fundamental decisions on alignment philosophies. From 'mechanical' to 'adjusted mechanical' to 'restricted kinematic' to 'unrestricted kinematic' - and how constitutional alignment relates to these - there is potential for ambiguity when thinking about and discussing such concepts. This annotation summarizes the various alignment strategies currently employed in TKA. It provides a clear framework and consistent language that will assist surgeons to compare confidently and contrast the concepts, while also discussing the latest opinions about alignment in TKA. Finally, it provides suggestions for applying consistent nomenclature to future research, especially as we explore the implications of 3D alignment patterns on patient outcomes.Cite this article: Bone Joint J 2023;105-B(2):102-108.
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Affiliation(s)
- Samuel J MacDessi
- Sydney Knee Specialists, Sydney, Australia.,The University of New South Wales, Sydney, Australia
| | | | - Matthew P Abdel
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Jan Victor
- Department of Orthopaedics, University Hospital of Ghent, Ghent, Belgium
| | - Mark W Pagnano
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Fares S Haddad
- University College London Hospitals, London, UK.,The Bone & Joint Journal, London, UK
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18
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Morcos MW, Uhuebor D, Vendittoli PA. Overview of the different personalized total knee arthroplasty with robotic assistance, how choosing? Front Surg 2023; 10:1120908. [PMID: 36936647 PMCID: PMC10020354 DOI: 10.3389/fsurg.2023.1120908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 02/13/2023] [Indexed: 03/06/2023] Open
Abstract
Current limitations in total knee arthroplasty (TKA) function and patient satisfaction stimulated us to question our practice. Our understanding of knee anatomy and biomechanics has evolved over recent years as we now consider that a more personalized joint reconstruction may be a better-targeted goal for TKA. Implant design and surgical techniques must be advanced to better reproduce the anatomy and kinematics of native knees and ultimately provide a forgotten joint. The availability of precision tools as robotic assistance surgery can help us recreate patient anatomy and ensure components are not implanted in a position that may compromise long-term outcomes. Robotic-assisted surgery is gaining in popularity and may be the future of orthopedic surgery. However, moving away from the concept of neutrally aligning every TKA dogma opens the door to new techniques emergence based on opinion and experience and leads to a certain amount of uncertainty among knee surgeons. Hence, it is important to clearly describe each technique and analyze their potential impacts and benefits. Personalized TKA techniques may be classified into 2 main families: unrestricted or restricted component orientation. In the restricted group, some will aim to reproduce native ligament laxity versus aiming for ligament isometry. When outside of their boundaries, all restricted techniques will induce anatomical changes. Similarly, most native knee having asymmetric ligaments laxity between compartments and within the same compartment during the arc of flexion; aiming for ligament isometry induces bony anatomy changes. In the current paper, we will summarize and discuss the impacts of the different robotic personalized alignment techniques, including kinematic alignment (KA), restricted kinematic alignment (rKA), inverse kinematic alignment (iKA), and functional alignment (FA). With every surgical technique, there are limitations and shortcomings. As our implants are still far from the native knee, it is primordial to understand the impacts and benefits of each technique. Mid to long data will help us in defining the new standards.
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Affiliation(s)
- Mina Wahba Morcos
- Department of Surgery, Hôpital Maisonneuve-Rosemont, Montreal University, Montreal, QC, Canada
| | - David Uhuebor
- Department of Surgery, Hôpital Maisonneuve-Rosemont, Montreal University, Montreal, QC, Canada
| | - Pascal-André Vendittoli
- Department of Surgery, Hôpital Maisonneuve-Rosemont, Montreal University, Montreal, QC, Canada
- Clinique Orthopédique Duval, Laval, QC, Canada
- Personalized Arthroplasty Society, Atlanta, GA, United States
- Correspondence: Pascal-André Vendittoli
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19
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Varshneya K, Hong CS, Tyagi V, Ruberte Thiele RA, Huddleston JI. Imageless Computer Navigation Reduces 5-Year All-Cause Revision Rates After Primary Total Knee Arthroplasty. J Arthroplasty 2022; 37:S211-S215. [PMID: 35256233 DOI: 10.1016/j.arth.2022.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 01/12/2022] [Accepted: 02/01/2022] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND The use of surgical navigation has been shown to reduce revision rates after total knee arthroplasty (TKA) in patients <65 years of age. It is unknown if this benefit extends to older patients. We hypothesized that the use of surgical navigation would reduce rates of all-cause revision in patients of all ages. METHODS In this cohort study, we queried the Truven MarketScan all-payer database to identify patients who underwent TKA from 2007 to 2015. Current Procedural Terminology codes were used to create 2 groups based on whether intraoperative navigation was used. Demographics, comorbidities, complications, and revision rates were determined. International Classification of Diseases codes were used to determine reasons for revision. RESULTS The conventional TKA cohort included 312,173 patients. The navigation cohort included 20,881 patients. There were not any clinically significant differences in demographics between the cohorts. All-cause revision rates were lower in the navigation cohort at 1 year (0.4% vs 0.5%, P = .04), 2 years (0.7% vs 0.9%, P = .003), and 5 years (0.9% vs 1.3%, P < .001) of follow-up. Revisions for mechanical loosening were more common in the conventional cohort (30.8% vs 21.9%, P = .009). Rates of revision for other causes, including infection, did not differ between groups, with the numbers available. CONCLUSION The use of surgical navigation yielded a 30.7% reduction in the all-cause revision rate at 5-year follow-up compared to conventional TKA. This benefit increased as follow-up duration increased. Increased usage of this inexpensive technology, from the current 6.3% in this US cohort, may reduce healthcare costs. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Kunal Varshneya
- Department of Orthopaedic Surgery, Stanford University Medical Center, Palo Alto, CA
| | - Cierra S Hong
- Department of Orthopaedic Surgery, Stanford University Medical Center, Palo Alto, CA
| | - Vineet Tyagi
- Department of Orthopaedic Surgery, Stanford University Medical Center, Palo Alto, CA
| | | | - James I Huddleston
- Department of Orthopaedic Surgery, Stanford University Medical Center, Palo Alto, CA
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Hiranaka T, Suda Y, Saitoh A, Tanaka A, Arimoto A, Koide M, Fujishiro T, Okamoto K. Current concept of kinematic alignment total knee arthroplasty and its derivatives. Bone Jt Open 2022; 3:390-397. [PMID: 35532356 PMCID: PMC9134837 DOI: 10.1302/2633-1462.35.bjo-2022-0021.r2] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The kinematic alignment (KA) approach to total knee arthroplasty (TKA) has recently increased in popularity. Accordingly, a number of derivatives have arisen and have caused confusion. Clarification is therefore needed for a better understanding of KA-TKA. Calipered (or true, pure) KA is performed by cutting the bone parallel to the articular surface, compensating for cartilage wear. In soft-tissue respecting KA, the tibial cutting surface is decided parallel to the femoral cutting surface (or trial component) with in-line traction. These approaches are categorized as unrestricted KA because there is no consideration of leg alignment or component orientation. Restricted KA is an approach where the periarthritic joint surface is replicated within a safe range, due to concerns about extreme alignments that have been considered ‘alignment outliers’ in the neutral mechanical alignment approach. More recently, functional alignment and inverse kinematic alignment have been advocated, where bone cuts are made following intraoperative planning, using intraoperative measurements acquired with computer assistance to fulfill good coordination of soft-tissue balance and alignment. The KA-TKA approach aims to restore the patients’ own harmony of three knee elements (morphology, soft-tissue balance, and alignment) and eventually the patients’ own kinematics. The respective approaches start from different points corresponding to one of the elements, yet each aim for the same goal, although the existing implants and techniques have not yet perfectly fulfilled that goal.
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Affiliation(s)
- Takafumi Hiranaka
- Department of Orthopaedic Surgery and Joint Surgery Centre, Takatsuki General Hospital, Takatsuki, Japan
| | - Yoshihito Suda
- Department of Orthopaedic Surgery and Joint Surgery Centre, Takatsuki General Hospital, Takatsuki, Japan
| | - Akira Saitoh
- Department of Orthopaedic Surgery and Joint Surgery Centre, Takatsuki General Hospital, Takatsuki, Japan
| | - Atsuki Tanaka
- Department of Orthopaedic Surgery and Joint Surgery Centre, Takatsuki General Hospital, Takatsuki, Japan
| | - Akihiko Arimoto
- Department of Orthopaedic Surgery and Joint Surgery Centre, Takatsuki General Hospital, Takatsuki, Japan
| | - Motoki Koide
- Department of Orthopaedic Surgery and Joint Surgery Centre, Takatsuki General Hospital, Takatsuki, Japan
| | - Takaaki Fujishiro
- Department of Orthopaedic Surgery and Joint Surgery Centre, Takatsuki General Hospital, Takatsuki, Japan
| | - Koji Okamoto
- Department of Orthopaedic Surgery and Joint Surgery Centre, Takatsuki General Hospital, Takatsuki, Japan
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21
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Robotic-arm assisted versus conventional technique for total knee arthroplasty: early results of a prospective single centre study. INTERNATIONAL ORTHOPAEDICS 2022; 46:1331-1338. [DOI: 10.1007/s00264-022-05351-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 02/18/2022] [Indexed: 10/19/2022]
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22
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Linko YV, Rokyta TG, Rokyta VG. THE ADVANTAGES OF MINIMAL BONE CUTS RESECTION IN TOTAL KNEE REPLACEMENT. BULLETIN OF PROBLEMS BIOLOGY AND MEDICINE 2022. [DOI: 10.29254/2077-4214-2022-3-166-324-331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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