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Wang H, Zhang L, Teng X. The efficacy and safety of patient-specific instrumentation versus conventional instrumentation for unicompartmental knee arthroplasty: Evidence from a meta-analysis. Medicine (Baltimore) 2024; 103:e36484. [PMID: 38241557 PMCID: PMC10798727 DOI: 10.1097/md.0000000000036484] [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: 09/19/2023] [Accepted: 11/14/2023] [Indexed: 01/21/2024] Open
Abstract
BACKGROUND The aim of this study was to compare the efficacy and safety of patient-specific instrumentation (PSI) and conventional instrumentation (CI) for unicompartmental knee arthroplasty. Our hypothesis was that the PSI would be superior to CI in improving implant positioning and clinical function. METHODS We searched electronic databases (PubMed, Web of Science, Embase, and Cochrane) to identify relevant studies published before July 1, 2023 that met our inclusion criteria. The identified reports at least included one of the following outcome variables: coronal component alignment, sagittal component alignment, number of outliers, hip-knee-ankle angle, postoperative complications, operative time and knee joint functional evaluation. For dichotomous variables, we calculated the risk ratio and its 95% confidence interval (CI). For continuous variables, we calculated the mean difference (MD) and its 95% CI. Heterogeneity of the included studies was assessed using the standard chi-square test. Meta-analyses were performed using RevMan 5.4. software. The meta-analysis was registered with PROSPERO (No. CRD42023454160). RESULTS A total of 9 articles were included in the analysis, consisting of 4 randomized controlled trials and 5 cohort studies. The study population comprised 494 patients, with 262 in the PSI group and 232 in the CI group. Our findings demonstrate that the PSI group exhibits superior tibial component coronal alignment compared to the CI group (MD = -0.66, 95% CI: -1.21 to -0.12, P = .02). Conversely, the CI group demonstrates better femoral component coronal alignment than the PSI group (MD = 0.89, 95% CI: 0.17-1.60, P = .01). No significant between 2 groups differences were observed in tibial component sagittal alignment, femoral component sagittal alignment, tibial coronal axis outliers, tibial sagittal axis outliers, femoral coronal axis outliers, femoral sagittal axis outliers, postoperative complications, operative time, hip-knee-ankle angle, and postoperative knee joint function score. CONCLUSIONS Our study findings suggest that the PSI confer an advantage in achieving superior tibial component coronal alignment, whereas the CI associated with better femoral component coronal alignment. However, no significant differences were observed between the groups in terms of other parameters. Future studies with larger sample sizes are needed to validate these findings.
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Affiliation(s)
- Huihui Wang
- Qingdao Eighth People’s Hospital, Qingdao, China
| | - Liang Zhang
- Qingdao Eighth People’s Hospital, Qingdao, China
| | - Xueren Teng
- Qingdao Eighth People’s Hospital, Qingdao, China
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Benignus C, Buschner P, Meier MK, Wilken F, Rieger J, Beckmann J. Patient Specific Instruments and Patient Individual Implants—A Narrative Review. J Pers Med 2023; 13:jpm13030426. [PMID: 36983609 PMCID: PMC10051718 DOI: 10.3390/jpm13030426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/20/2023] [Accepted: 02/25/2023] [Indexed: 03/02/2023] Open
Abstract
Joint arthroplasties are one of the most frequently performed standard operations worldwide. Patient individual instruments and patient individual implants represent an innovation that must prove its usefulness in further studies. However, promising results are emerging. Those implants seem to be a benefit especially in revision situations. Most experience is available in the field of knee and hip arthroplasty. Patient-specific instruments for the shoulder and upper ankle are much less common. Patient individual implants combine individual cutting blocks and implants, while patient individual instruments solely use individual cutting blocks in combination with off-the-shelf implants. This review summarizes the current data regarding the implantation of individual implants and the use of individual instruments.
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Affiliation(s)
- Christian Benignus
- Department of Traumatology and Orthopedic Surgery, Hospital Ludwigsburg, Posilipostr. 4, 71640 Ludwigsburg, Germany
| | - Peter Buschner
- Department of Orthopedic Surgery and Traumatology, Hospital Barmherzige Brüder Munich, Romanstr. 93, 80639 Munich, Germany
| | - Malin Kristin Meier
- Department of Orthopedic Surgery and Traumatology, Inselspital, University Hospital Bern, University of Bern, Freiburgstr. 4, 3010 Bern, Switzerland
| | - Frauke Wilken
- Department of Orthopedic Surgery and Traumatology, Hospital Barmherzige Brüder Munich, Romanstr. 93, 80639 Munich, Germany
| | - Johannes Rieger
- Department of Orthopedic Surgery and Traumatology, Hospital Barmherzige Brüder Munich, Romanstr. 93, 80639 Munich, Germany
| | - Johannes Beckmann
- Department of Orthopedic Surgery and Traumatology, Hospital Barmherzige Brüder Munich, Romanstr. 93, 80639 Munich, Germany
- Correspondence:
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Cutting-Edge Approaches in Arthroplasty: Before, during and after Surgery. J Pers Med 2022; 12:jpm12101671. [PMID: 36294810 PMCID: PMC9605126 DOI: 10.3390/jpm12101671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 09/29/2022] [Indexed: 12/02/2022] Open
Abstract
Personalised medicine was introduced in arthroplasty a long time ago with the aim of respecting each individual person for their unique personal characteristics in order to further improve outcomes [...].
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Togher CJ, Golding SL, Ferrise TD, Butterfield J, Reeves CL, Shane AM. Effects of Patient-Specific Instrumentation and Ancillary Surgery Performed in Conjunction With Total Ankle Implant Arthroplasty: Postoperative Radiographic Findings. J Foot Ankle Surg 2022; 61:739-747. [PMID: 34961682 DOI: 10.1053/j.jfas.2021.11.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 11/10/2021] [Accepted: 11/17/2021] [Indexed: 02/03/2023]
Abstract
Accuracy and reproducibility when performing total ankle implant arthroplasty (TAA) are essential for longevity of the implant, maintaining relative stability of the joint, and theoretically reducing the formation of adjacent joint arthritis in the subtalar and knee joints. Studies have helped to illustrate the accuracy of implantation when using patient-specific instrumentation in both knee and ankle implant arthroplasty. Despite the findings of these studies, few have gone on to evaluate the effects of ancillary procedures on TAA; particularly their effects on postoperative implant congruity when performed simultaneously with joint replacement surgery. In this study, preoperative plans on implant alignment based on patient-specific computed tomography images were compared with the alignment observed on immediate postoperative radiographs. Additionally, postoperative joint congruity was measured, and operative reports were assessed to determine if concomitant procedures performed with total ankle replacement had a significant effect on overall alignment. In our population, 46/47 implants were within 1.5° of their anticipated placement in the coronal plane, and 100% were within 2° of anticipated placement in the sagittal plane. Using a spearman's rank-order correlation, our data failed to show any significant relationship between conducting additional procedures in conjunction with TAA (rho = 0.178; p value = .232) and postoperative congruency of the implant. These findings help support the accuracy of ankle implantation using patient-specific instrumentation, while also supporting the appropriate use of indicated procedures in conjunction with total ankle replacement to help obtain a congruent joint postoperatively.
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Affiliation(s)
- Cody J Togher
- Fellow, Orthopedic Foot & Ankle Center, Worthington, OH.
| | - Stephanie L Golding
- Resident, Advent Health East Orlando Podiatric Surgical Residency, Orlando, FL
| | - Thomas D Ferrise
- Resident, Advent Health East Orlando Podiatric Surgical Residency, Orlando, FL
| | | | - Christopher L Reeves
- Department of Podiatric Surgery, AdventHealth System, Faculty, Advent Health East Orlando Podiatric Surgical Residency, Orlando, FL
| | - Amber M Shane
- Chair of Department of Podiatric Surgery, AdventHealth System, Faculty, Advent Health East Orlando Podiatric Surgical Residency, Orlando, FL
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5
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Benignus C, Meier MK, Hirschmann MT, Tibesku CO, Beckmann J. Patientenspezifische Instrumentierung und Teilprothesen am Knie. ARTHROSKOPIE 2021. [DOI: 10.1007/s00142-021-00463-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Meier M, Calliess T, Tibesku C, Beckmann J. [New technologies (robotics, custom-made) in unicondylar knee arthroplasty-pro]. DER ORTHOPADE 2021; 50:130-135. [PMID: 33346868 DOI: 10.1007/s00132-020-04058-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Unicondylar knee arthroplasty offers the advantage that partial degenerative changes can be addressed with partial prosthetic solutions, thus preserving as much of the native joint as possible, including the cruciate ligaments. On the other hand, the number of revisions is still higher than for total knee endoprosthetics. In the literature, the causes mentioned are insufficient fit of the components as well as surgical errors. The use of new technologies to achieve a better fit and higher surgical precision and reproducibility, therefore, represents a promising approach. INDIVIDUAL ENDOPROSTHETICS Individual endoprosthetics offers the advantage that the prosthesis is adapted to the individual anatomy of each patient and not the patient's anatomy to the prosthesis, as is the case with standard prostheses. This allows for an optimal fit of the prosthesis while avoiding excessive bone resections and soft tissue releases. ROBOTICS The use of robotics in endoprosthetics makes it easier to correctly perform bone resections and align components. This ensures high and reproducible precision even for surgeons with lower case numbers. Studies on individual unicondylar endoprosthetics and robotics are reporting promising results. However, long-term results of high-quality randomized studies must be awaited in order to make a scientifically sound statement.
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Affiliation(s)
- Malin Meier
- Universitätsklinik für Orthopädische Chirurgie und Traumatologie, Inselspital, Bern, Schweiz
| | | | | | - Johannes Beckmann
- Sportklinik Stuttgart, Taubenheimstr. 8, 70372, Stuttgart, Deutschland.
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Fujii H, Hayama T, Abe T, Takahashi M, Matsushita Y, Sato R, Otani T, Saito M. Improving MiniHip femoral prosthesis positioning using a cross-laser projection system in total hip arthroplasty by an anterolateral supine approach. Int J Med Robot 2021; 17:e2214. [PMID: 33369069 PMCID: PMC7988605 DOI: 10.1002/rcs.2214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 11/20/2020] [Accepted: 12/21/2020] [Indexed: 11/17/2022]
Abstract
Background The authors developed a cross‐laser projection system (CLP) to place a femoral neck‐sparing short stem using the minimally invasive anterolateral supine approach in total hip arthroplasty. This study aimed to verify the utility of CLP. Methods Thirty joints were assessed with the MiniHip (Corin). The authors compared femoral component implantation with a patient‐specific femoral osteotomy guide (PSG) for the femoral neck‐cut (PSG group), with the CLP attached to the rasp handle to irradiate the cross‐laser to the target of PSG (CLP group), and without PSG or CLP (control group). Results In the CLP group, the positional deviation of anteversion, anterior/posterior tilt and varus/valgus placement of the stem postoperatively were 1.8° ± 0.2°, 2.0° ± 2.0° and 2.0° ± 0.1°, respectively. The positional deviation of anteversion (p < 0.001) and anterior/posterior tilt (p = 0.036) were significantly smaller than those in the other groups. Conclusions CLP improves the accuracy of MiniHip femoral prosthesis placement.
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Affiliation(s)
- Hideki Fujii
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Tetsuo Hayama
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Toshiomi Abe
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Motoi Takahashi
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Yohei Matsushita
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Ryuichi Sato
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Takuya Otani
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Mitsuru Saito
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo, Japan
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Beckmann J, Meier MK, Benignus C, Hecker A, Thienpont E. Contemporary knee arthroplasty: one fits all or time for diversity? Arch Orthop Trauma Surg 2021; 141:2185-2194. [PMID: 34269891 PMCID: PMC8595166 DOI: 10.1007/s00402-021-04042-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 07/01/2021] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Total knee arthroplasty (TKA) has historically been the preferred solution for any type of knee osteoarthritis, independently of the number of compartments involved. In these days of patient-specific medicine, mono-compartmental disease could also be approached with a more individualized treatment, such as partial knee arthroplasty (PKA). Off-the-shelf (OTS) implants are often the compromise of averages and means of a limited series of anatomical parameters retrieved from patients and the pressure of cost control by limited inventory. Personalized medicine requires respect and interest for the individual shape and alignment of each patient. MATERIALS AND METHODS A Pubmed and Google Scholar search were performed with the following terms: "patient-specific knee" and "arthroplasty" and "custom implant" and "total knee replacement" and "partial knee replacement" and "patellofemoral knee replacement" and "bicompartmental knee replacement". The full text of 90 articles was used to write this narrative review. RESULTS Unicondylar, patellofemoral and bicompartmental knee arthroplasty are successful treatment options, which can be considered over TKA for their bone and ligament sparing character and the superior functional outcome that can be obtained with resurfacing procedures. For TKA, where compromises dominate our choices, especially in patients with individual variations of their personal anatomy outside of the standard, a customized implant could be a preferable solution. CONCLUSION TKA might not be the only solution for every patient with knee osteoarthritis, if personalized medicine wants to be offered. Patient-specific mono-compartmental resurfacing solutions, such as partial knee arthroplasty, can be part of the treatment options proposed by the expert surgeon. Customized implants and personalized alignment options have the potential to further improve clinical outcome by identifying the individual morphotype and respecting the diversity of the surgical population.
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Affiliation(s)
- Johannes Beckmann
- Department of Endoprosthetics, Sportklinik Stuttgart, Stuttgart, Germany
| | - Malin Kristin Meier
- Department of Orthopedic Surgery and Traumatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
| | - Christian Benignus
- Department of Endoprosthetics, Sportklinik Stuttgart, Stuttgart, Germany
| | - Andreas Hecker
- Department of Orthopedic Surgery and Traumatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
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Wang C, Xu C, Li M, Li H, Xiao H, Zhong D, Liu H. Patient-specific instrument-assisted minimally invasive internal fixation of calcaneal fracture for rapid and accurate execution of a preoperative plan: A retrospective study. BMC Musculoskelet Disord 2020; 21:407. [PMID: 32593302 PMCID: PMC7321547 DOI: 10.1186/s12891-020-03439-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 06/18/2020] [Indexed: 11/10/2022] Open
Abstract
Background Traditional methods for minimally invasive internal fixation (MIIF) of calcaneal fractures require extensive intraoperative fluoroscopy, and fracture recovery is usually not ideal. We developed a new surgical procedure using digital surgical simulation and constructed a patient-specific instrument (PSI) for calcaneal fracture that we used during the operation. This study investigated whether PSI-assisted MIIF of calcaneal fracture enables rapid and accurate execution of the preoperative plan. Methods We retrospectively analyzed patients with Sanders type III or IV fresh calcaneal fractures who had undergone PSI-assisted MIIF at our hospital from January 2016 to December 2018. We analyzed perioperative data including intraoperative fluoroscopy time, concurrence of internal fixation actual usage (IFAU) with the preoperative plan, surgery time, and complications. We also compared pre- and postoperative actual measurements from X-ray radiographs and computed tomography images including Böhler, Gissane, and calcaneus valgus angles; subtalar joint width; and calcaneal volume overlap ratio with the preoperative design. All patients had been followed up and their American Orthopedic Foot and Ankle Score (AOFAS) score was available. Results Mean intraoperative fluoroscopy time was 3.95 ± 1.78 h; IFAU in 16 patients (16 ft) was the same as the preoperative plan; mean surgery time was 28.16 ± 10.70 min; and none of the patients developed complications. Böhler, Gissane, and calcaneus valgus angles and subtalar joint width did not differ between pre- and postoperative plans; however, the actual preoperative values of each of these parameters differed significantly from those measured postoperatively. The calcaneal volume overlap ratio with the preoperative design was 91.2% ± 2.3%. AOFAS scores increased with time, with significant differences in the score at each time point. Conclusions The newly developed PSI-assisted calcaneal fracture MIIF method can rapidly and accurately execute the preoperative plan.
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Affiliation(s)
- Chenggong Wang
- Department of Orthopedics, Xiangya Hospital Central South University, No.87 Xiangya Road, Changsha, 410008, Hunan, China.,Department of foot and ankle surgery, Xiangya Hospital Central South University, No.87 Xiangya Road, Changsha, 410008, Hunan, China
| | - Can Xu
- Department of Orthopedics, Xiangya Hospital Central South University, No.87 Xiangya Road, Changsha, 410008, Hunan, China.,Department of foot and ankle surgery, Xiangya Hospital Central South University, No.87 Xiangya Road, Changsha, 410008, Hunan, China
| | - Mingqing Li
- Department of Orthopedics, Xiangya Hospital Central South University, No.87 Xiangya Road, Changsha, 410008, Hunan, China.,Department of foot and ankle surgery, Xiangya Hospital Central South University, No.87 Xiangya Road, Changsha, 410008, Hunan, China
| | - Hui Li
- Department of Orthopedics, Xiangya Hospital Central South University, No.87 Xiangya Road, Changsha, 410008, Hunan, China.,Department of foot and ankle surgery, Xiangya Hospital Central South University, No.87 Xiangya Road, Changsha, 410008, Hunan, China
| | - Han Xiao
- Department of Sports Medicine, Xiangya Hospital Central South University, No.87 Xiangya Road, Changsha, 410008, Hunan, China
| | - Da Zhong
- Department of Orthopedics, Xiangya Hospital Central South University, No.87 Xiangya Road, Changsha, 410008, Hunan, China
| | - Hua Liu
- Department of Orthopedics, Xiangya Hospital Central South University, No.87 Xiangya Road, Changsha, 410008, Hunan, China. .,Department of foot and ankle surgery, Xiangya Hospital Central South University, No.87 Xiangya Road, Changsha, 410008, Hunan, China.
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Kalache H, Müller JH, Saffarini M, Gancel E. Patient-specific instrumentation does not improve tibial component coronal alignment for medial UKA compared to conventional instrumentation. J Exp Orthop 2020; 7:42. [PMID: 32514889 PMCID: PMC7280458 DOI: 10.1186/s40634-020-00257-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 05/25/2020] [Indexed: 01/19/2023] Open
Abstract
Background Patient-specific instrumentation (PSI) may potentially improve unicompartmental knee arthroplasty (UKA) implant positioning and alignment. The purpose of this study was to compare early radiographic coronal alignment of medial UKA performed using PSI versus conventional instrumentation (CI) for tibial resections. Methods A consecutive series of 47 knees (47 patients) received medial UKA, with the tibial resections performed using CI (first 22 knees) or PSI (next 25 knees), while femoral resections were performed with CI in both groups. The target mechanical medial proximal tibial angle (mMPTA) was 87° ± 3°, and the target hip-knee-ankle (HKA) angle was 177° ± 2°. The postoperative mMPTA and HKA were evaluated from postoperative radiographs at a follow-up of 2 months. Results Differences in postoperative mMPTA (p = 0.509) and HKA (p = 0.298) between the two groups were not statistically significant. For the mMPTA target, 24% of knees in the PSI group (85.6° ± 2.1°) and 32% of the CI group (85.0° ± 3.6°) were outliers. For the HKA target, 44% of knees in the PSI group (176.3° ± 2.8°) and 18% of the CI group (177.1° ± 2.3°) were outliers. Considering the two criteria simultaneously, 60% of knees in the PSI group and 45% of knees in the CI group were outside the target zone (p = 0.324), whereas 28% of knees in the PSI group and 41% of knees in the CI group were outside the target zone by more than 1° (p = 0.357). Conclusions The results of the present study revealed no statistically significant difference in radiographic coronal alignment of UKA performed using PSI versus CI for tibial resections.
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Affiliation(s)
- Houssam Kalache
- Centre Hospitalier Privé Saint-Grégoire, 6 Boulevard de la Boutière, 35760, Saint-Grégoire, France
| | | | - Mo Saffarini
- ReSurg S.A, Rue Saint-Jean 22, 1260, Nyon, Switzerland.
| | - Evrard Gancel
- Centre Hospitalier Privé Saint-Grégoire, 6 Boulevard de la Boutière, 35760, Saint-Grégoire, France
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