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Gunst S, Cloquell Y, Collotte P, Ioncu A, Haritinian EG, Nové-Josserand L. Medium-term clinical and radiographic outcomes of a cementless prosthesis with a 140° neck-shaft angle in reverse total shoulder arthroplasty. J Shoulder Elbow Surg 2024; 33:1075-1083. [PMID: 37777044 DOI: 10.1016/j.jse.2023.08.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 08/08/2023] [Accepted: 08/27/2023] [Indexed: 10/02/2023]
Abstract
BACKGROUND The design of humeral implants has evolved from the initial Grammont design, notably regarding the neck-shaft angle (NSA) and through the use of cementless prostheses. Stress shielding was frequently reported with cementless implants, the 2 main risk factors being humeral stem misalignment and high filling ratios. Our hypothesis was that standard length cementless stems with an NSA of 140° would facilitate good alignment with moderate filling ratios, thereby limiting stress shielding and ensuring good clinical outcomes. METHODS A single-center retrospective study was conducted of patients who underwent reverse total shoulder arthroplasty between January 2015 and August 2017, with at least 2 years' follow-up. Clinical evaluations included range of motion measurements and Constant and subjective shoulder values scores. Frontal alignment was assessed in terms of the angle (α) between axes of the stem and of the humerus. Filling ratios were measured in the metaphysis of the humerus, in the diaphysis, and at the distal end of the stem and considered excessive above 0.7. Stress shielding was evidenced radiographically by the observation of medial cortical narrowing, medial metaphysis thinning, lateral metaphysis thinning or under-the-baseplate osteolysis. RESULTS Eighty-two shoulders were included and 70 had radiographic follow-up data available. The mean patient age was 78 years and 63/81 patients (78%) were female. The mean follow-up time was 39 ± 7 months. The mean α angle was 1.4° ± 0.9° and was less than 5° in all cases. The mean metaphyseal, diaphyseal, and distal filling ratios were 0.61 ± 0.06, 0.70 ± 0.08, and 0.64 ± 0.09, respectively. The mean Constant score improved from 28 ± 11 preoperatively to 64 ± 14 at last follow-up. The mean subjective shoulder values score at last follow-up was 81 ± 12. Seventy-nine percent of patients (55/70) had at least 1 form of stress-shielding related, which were not associated with clinical outcomes, apart from lateral metaphysis thinning, which was associated with lower active anterior elevation (mean, 106° ± 30° vs. 126° ± 28°; P = .01) and lower Constant scores (mean, 56 ± 17 vs. 65 ± 14; P = .06). CONCLUSION The use of cementless reverse shoulder prostheses with a NSA of 140° was associated with good clinical outcomes at 2 years' follow-up. The prosthesis stem was correctly aligned with the humeral axis and the filling ratios were <0.7 in all cases. Stress-shielding was common but, apart from lateral metaphysis thinning, this had no impact on clinical outcomes.
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Affiliation(s)
- Stanislas Gunst
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France; IFSTTAR, University Lyon, Claude Bernard Lyon 1 University, Lyon, France
| | - Yannick Cloquell
- Ramsay Santé, Hôpital Privé Jean Mermoz, Centre Orthopédique Santy, Lyon, France
| | - Philippe Collotte
- Ramsay Santé, Hôpital Privé Jean Mermoz, Centre Orthopédique Santy, Lyon, France
| | - Adrian Ioncu
- Ramsay Santé, Hôpital Privé Jean Mermoz, Centre Orthopédique Santy, Lyon, France
| | - Emil George Haritinian
- Carol Davila University of Medicine and Pharmacy, Foișor Orthopaedic Hospital, Bucharest, Romania
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Ly L, Swan J, Özbek RB, Servien E, Lustig S, Gunst S. Risk of suprascapular nerve injury in open Trillat procedure: an anatomical study. Surg Radiol Anat 2024; 46:451-461. [PMID: 38506977 DOI: 10.1007/s00276-024-03337-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 02/27/2024] [Indexed: 03/22/2024]
Abstract
PURPOSE The open Trillat Procedure described to treat recurrent shoulder instability, has a renewed interest with the advent of arthroscopy. The suprascapular nerve (SSN) is theoretically at risk during the drilling of the scapula near the spinoglenoid notch. The purpose of this study was to assess the relationship between the screw securing the coracoid transfer and the SSN during open Trillat Procedure and define a safe zone for the SSN. METHODS In this anatomical study, an open Trillat Procedure was performed on ten shoulders specimens. The coracoid was fixed by a screw after partial osteotomy and antero-posterior drilling of the scapular neck. The SSN was dissected with identification of the screw. We measured the distances SSN-screw (distance 1) and SSN-glenoid rim (distance 2). In axial plane, we measured the angles between the glenoid plane and the screw (α angle) and between the glenoid plane and the SSN (β angle). RESULTS The mean distance SSN-screw was 8.8 mm +/-5.4 (0-15). Mean α angle was 11°+/-2.4 (8-15). Mean β angle was 22°+/-6.7 (12-30). No macroscopic lesion of the SSN was recorded but in 20% (2 cases), the screw was in contact with the nerve. In both cases, the β angle was measured at 12°. CONCLUSION During the open Trillat Procedure, the SSN can be injured due to its anatomical location. Placement of the screw should be within 10° of the glenoid plane to minimize the risk of SSN injury and could require the use of a specific guide or arthroscopic-assisted surgery.
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Affiliation(s)
- Lyliane Ly
- Department of Orthopedic Surgery and Sport Medicine, Croix-Rousse Hospital, FIFA Medical Center of Excellence, Lyon, 69004, France
| | - John Swan
- Department of Orthopedic Surgery and Sport Medicine, Croix-Rousse Hospital, FIFA Medical Center of Excellence, Lyon, 69004, France
| | - Riza B Özbek
- Department of Orthopedic Surgery and Sport Medicine, Croix-Rousse Hospital, FIFA Medical Center of Excellence, Lyon, 69004, France
| | - Elvire Servien
- Department of Orthopedic Surgery and Sport Medicine, Croix-Rousse Hospital, FIFA Medical Center of Excellence, Lyon, 69004, France
- Interuniversity Laboratory of Biology of Mobility, LIBM - EA 7424, Claude Bernard Lyon 1 University, Lyon, France
| | - Sebastien Lustig
- Department of Orthopedic Surgery and Sport Medicine, Croix-Rousse Hospital, FIFA Medical Center of Excellence, Lyon, 69004, France
- University Lyon, IFSTTAR, LBMC UMR_T9406, Claude Bernard Lyon 1, Lyon, 69622, France
| | - Stanislas Gunst
- Ramsay Santé, Hôpital Privé Jean Mermoz, Centre Orthopédique Santy, 24 avenue Paul Santy, Lyon, 69008, France.
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Vezole L, Gunst S, Gras LL, Shatrov J, Mertbakan O, Lustig S, Servien E. What is the best fixation method in medial patellofemoral ligament reconstruction? A biomechanical comparison of common methods for femoral graft attachment. SICOT J 2024; 10:7. [PMID: 38334592 PMCID: PMC10854485 DOI: 10.1051/sicotj/2024004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 01/10/2024] [Indexed: 02/10/2024] Open
Abstract
INTRODUCTION A variety of techniques have been described for femoral fixation in medial patellofemoral ligament reconstruction (MPFLr). The aim of this study was to compare the biomechanical performance of the most used methods for graft fixation in the femur using human cadaveric tissue. We wondered what is the best fixation method for femoral fixation in MPFL reconstruction? HYPOTHESIS A suspensory fixation device provides the best femoral fixation. MATERIAL AND METHOD Twenty cadaveric knees were tested. Four femoral fixation methods were compared (5 knees per group): interference fixation with a Biosure© RG 5 mm and a 7 mm, suture anchor (Healicoil Regenesorb 4.75 mm ©) and suspensory fixation with the Ultrabutton©. The testing was divided in preconditioning, cyclic loading and load to failure. Load to failure, elongation, stiffness and mode of failure were recorded and compared. RESULTS The Ultrabutton© had the highest mean ultimate load (427 ± 215 N (p = 0.5)), followed by Healicoil anchor © (308 ± 44 N (p > 0.05)) and the interference screw of 7 mm (255 ± 170 N (p > 0.05)). Mean stiffness was similar in the Ultrabutton© and 4.75 mm. Healicoil anchor © groups (111 ± 21 N/mm and 119 ± 20 N/mm respectively), and lowest in 7 mm Biosure© screw fixation group (90 ± 5 N/mm). The Biosure© 5 mm RG screw presented 100% of premature rupture because of tendon slippage. The Ultrabutton© presented the lowest premature rupture (40%). DISCUSSION A suspensory fixation for the femur had the lowest number of graft failures and highest load to failure. This study has implications for surgeons' choice of graft fixation in MPFLr. It is the first study to test the most commonly femoral used fixation methods, allowing direct comparisons between each method.
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Affiliation(s)
- Léonard Vezole
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Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital 69004 Lyon France
| | - Stanislas Gunst
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Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital 69004 Lyon France
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Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406 F69622 Lyon France
| | - Laure-Lise Gras
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Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406 F69622 Lyon France
| | - Jobe Shatrov
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Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital 69004 Lyon France
| | - Ozgur Mertbakan
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Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital 69004 Lyon France
| | - Sébastien Lustig
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Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital 69004 Lyon France
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Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406 F69622 Lyon France
| | - Elvire Servien
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Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital 69004 Lyon France
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LIBM – EA 7424, Interuniversity Laboratory of Biology of Mobility, Claude Bernard Lyon 1 University Lyon France
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Erard J, Cance N, Shatrov J, Fournier G, Gunst S, Ciolli G, Porcelli P, Lustig S, Servien E. Delaying ACL reconstruction is associated with increased rates of medial meniscal tear. Knee Surg Sports Traumatol Arthrosc 2023; 31:4458-4466. [PMID: 37486367 DOI: 10.1007/s00167-023-07516-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 07/14/2023] [Indexed: 07/25/2023]
Abstract
PURPOSE The aim of this study was to evaluate the relationship between the time from injury to ACL reconstruction (ACLR) and the rate as well as repairability of meniscal tears. Secondary aims were to evaluate the relationship between meniscal injury and Tegner Activity Scale, age, BMI, and gender. METHODS Between 2012 and 2022, 1,840 consecutive ACLRs were performed. A total of 1,317 ACLRs were included with a mean patient age of 31.2 years ± 10.5 [16-60]. Meniscal tear was assessed during arthroscopy using the ISAKOS classification. Time from injury to ACLR, Tegner Activity Scale, age, BMI and gender were analysed in uni- and then in multivariate analyses. Patients were divided into four groups according to the time from injury to surgery: < 3 months (427; 32%), 3-6 months (388; 29%), 6-12 months (248; 19%) and > 12 months (254; 19%). RESULTS Delaying ACLR > 12 months significantly increased the rate of medial meniscal (MM) injury (OR 1.14; p < 0.001). No correlation was found between a 3- or 6-month time from injury to surgery and MM tear. Performing ACLR > 3, 6, or 12 months after injury did not significantly increase the rate of lateral meniscal (LM) injury. Increasing Tegner activity scale was significantly associated with a lower rate of MM injury (OR 0.90; p = 0.020). An age > 30 years (OR 1.07; p = 0.025) and male gender (OR 1.13; p < 0.0001) was also associated with an increased rate of MM injury. Age > 30 years decreased the rate of MM repair (OR 0.85; p < 0.001). Male gender increased the rate of LM tear (OR 1.10; p = 0.001). CONCLUSION Performing ACLR more than 12 months after injury was associated with increased rates of MM injury but not with lower rates of repairable lesions. An increased pre-injury Tegner activity score was associated with a decreased rate of MM tear. Age > 30 years was associated with an increased rate of MM tear with concomitant ACL injury and a decreased rate of repairability of MM tear. ACLR should be performed within 12 months from injury to prevent from the risk of MM injury. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Julien Erard
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, 103 Grande Rue de La Croix Rousse, 69004, Lyon, France.
| | - Nicolas Cance
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, 103 Grande Rue de La Croix Rousse, 69004, Lyon, France
| | - Jobe Shatrov
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, 103 Grande Rue de La Croix Rousse, 69004, Lyon, France
- Sydney Orthopaedic Research Institute, University of Notre Dame Australia, Hornsby and Ku-Ring Hospital, Sydney, Australia
| | - Gaspard Fournier
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, 103 Grande Rue de La Croix Rousse, 69004, Lyon, France
| | - Stanislas Gunst
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, 103 Grande Rue de La Croix Rousse, 69004, Lyon, France
| | - Gianluca Ciolli
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, 103 Grande Rue de La Croix Rousse, 69004, Lyon, France
- Department of Orthopaedics, A. Gemelli University Hospital Foundation IRCCS, Catholic University, Via Della Pineta Sacchetti, 217, 00168, Rome, Italy
| | - Pasquale Porcelli
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, 103 Grande Rue de La Croix Rousse, 69004, Lyon, France
- Orthopaedic and Traumatology Department, Centro Traumatologico Ortopedico, Via Gianfranco Zuretti, 29, 10126, Turin, TO, Italy
| | - Sébastien Lustig
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, 103 Grande Rue de La Croix Rousse, 69004, Lyon, France
- IFSTTAR, Univ Lyon, Claude Bernard Lyon 1 University, LBMC UMR_T9406, F69622, Lyon, France
| | - Elvire Servien
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, 103 Grande Rue de La Croix Rousse, 69004, Lyon, France
- LIBM-EA 7424, Interuniversity Laboratory of Human Movement Science, Université Lyon 1, Lyon, France
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Cance N, Erard J, Shatrov J, Fournier G, Gunst S, Martin GL, Lustig S, Servien E. Delaying anterior cruciate ligament reconstruction increases the rate and severity of medial chondral injuries. Bone Joint J 2023; 105-B:953-960. [PMID: 37652445 DOI: 10.1302/0301-620x.105b9.bjj-2022-1437.r1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Aims The aim of this study was to evaluate the association between chondral injury and interval from anterior cruciate ligament (ACL) tear to surgical reconstruction (ACLr). Methods Between January 2012 and January 2022, 1,840 consecutive ACLrs were performed and included in a single-centre retrospective cohort. Exclusion criteria were partial tears, multiligament knee injuries, prior ipsilateral knee surgery, concomitant unicompartmental knee arthroplasty or high tibial osteotomy, ACL agenesis, and unknown date of tear. A total of 1,317 patients were included in the final analysis, with a median age of 29 years (interquartile range (IQR) 23 to 38). The median preoperative Tegner Activity Score (TAS) was 6 (IQR 6 to 7). Patients were categorized into four groups according to the delay to ACLr: < three months (427; 32%), three to six months (388; 29%), > six to 12 months (248; 19%), and > 12 months (254; 19%). Chondral injury was assessed during arthroscopy using the International Cartilage Regeneration and Joint Preservation Society classification, and its association with delay to ACLr was analyzed using multivariable analysis. Results In the medial compartment, delaying ACLr for more than 12 months was associated with an increased rate (odds ratio (OR) 1.93 (95% confidence interval (CI) 1.27 to 2.95); p = 0.002) and severity (OR 1.23 (95% CI 1.08 to 1.40); p = 0.002) of chondral injuries, compared with < three months, with no association in patients aged > 50 years old. No association was found for shorter delays, but the overall dose-effect analysis was significant for the rate (p = 0.015) and severity (p = 0.026) of medial chondral injuries. Increased TAS was associated with a significantly reduced rate (OR 0.88 (95% CI 0.78 to 0.99); p = 0.036) and severity (OR 0.96 (95% CI 0.92 to 0.99); p = 0.017) of medial chondral injuries. In the lateral compartment, no association was found between delay and chondral injuries. Conclusion Delay was associated with an increased rate and severity of medial chondral injuries in a dose-effect fashion, in particular for delays > 12 months. Younger patients seem to be at higher risk of chondral injury when delaying surgery. The timing of ACLr should be optimally reduced in this population.
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Affiliation(s)
- Nicolas Cance
- Orthopaedic Surgery and Sports Medicine Department, FIFA Medical Centre of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France
| | - Julien Erard
- Orthopaedic Surgery and Sports Medicine Department, FIFA Medical Centre of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France
| | - Jobe Shatrov
- Orthopaedic Surgery and Sports Medicine Department, FIFA Medical Centre of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France
- Sydney Orthopaedic Research Institute, University of Notre Dame Australia, Hornsby and Ku-Ring Hospital, Sydney, Australia
| | - Gaspard Fournier
- Orthopaedic Surgery and Sports Medicine Department, FIFA Medical Centre of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France
| | - Stanislas Gunst
- Orthopaedic Surgery and Sports Medicine Department, FIFA Medical Centre of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France
| | - Guillaume L Martin
- Département de Santé Publique, Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique, AP-HP, Hôpital Pitié Salpêtrière, Paris, France
| | - Sébastien Lustig
- Orthopaedic Surgery and Sports Medicine Department, FIFA Medical Centre of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France
- IFSTTAR, LBMC, Université Claude Bernard Lyon 1, Lyon, France
| | - Elvire Servien
- Orthopaedic Surgery and Sports Medicine Department, FIFA Medical Centre of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France
- Interuniversity Laboratory of Human Movement Science, Université Claude Bernard Lyon 1, Lyon, France
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Deroche E, Batailler C, Shatrov J, Gunst S, Servien E, Lustig S. No clinical difference at mid-term follow-up between TiN-coated versus uncoated cemented mobile-bearing total knee arthroplasty: a matched cohort study. SICOT J 2023; 9:5. [PMID: 36757220 PMCID: PMC9910165 DOI: 10.1051/sicotj/2023001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 01/05/2023] [Indexed: 02/10/2023] Open
Abstract
INTRODUCTION Nitride-based ceramic coating was introduced into surgical implants to improve hardness, reduce abrasion, and decrease the risk of metal-induced adverse reactions, especially for patients with suspected or identified metal hypersensitivity. The study aimed to evaluate the effectiveness and safety of a titanium nitride (TiN) coated prosthesis with a mobile bearing design. METHODS This was a retrospective matched-cohort study from a single center, comparing clinical outcomes between patients receiving either a TiN-coated versus an uncoated cobalt-chromium-molybdenum (CoCrMo) prostheses for primary total knee replacement. Seventeen patients received the TiN prosthesis between 2015 and 2019. These were matched 1:2 with patients receiving uncoated mobile-bearing knee prostheses with the same design manufacturer. RESULTS Fourteen patients in the TiN group had complete 5-year follow-up data and were compared with 34 patients from the CoCrMo group. The Knee Society Score was 170.6 ± 28.0 (Function subscore 83.7 ± 17.5 and Knee subscore 86.9 ± 13.8) in the TiN group and 180.7 ± 49.4 (Function subscore 87.5 ± 14.3 and Knee subscore 93.2 ± 9.6) in CoCrMo group, with no statistically significant difference (p = 0.19). One patient underwent a revision for instability requiring the removal of the implant in the TiN group and none in the CoCrMo group. The survival rates were 92.9% (CI95% 77.3-100.0) and 100.0% in the TiN group and CoCrMo group respectively (p = 1.0). DISCUSSION TiN-coated TKA with mobile bearing resulted in satisfactory clinical outcomes, and a low revision rate, and there was no complication related to the coated implant. The use of TiN-coated prostheses in case of confirmed or suspected metal allergy provides satisfactory short-term clinic outcomes.
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Affiliation(s)
- Etienne Deroche
- Orthopaedic Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital 69004 Lyon France,Corresponding author:
| | - Cécile Batailler
- Orthopaedic Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital 69004 Lyon France
| | - Jobe Shatrov
- Sydney Orthopaedic Research Institute (SORI) at Landmark Orthopaedics 500 Pacific Hwy St. Leonards NSW Australia
| | - Stanislas Gunst
- Orthopaedic Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital 69004 Lyon France
| | - Elvire Servien
- Orthopaedic Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital 69004 Lyon France,LIBM – EA 7424, Interuniversity Laboratory of Biology of Mobility, Claude Bernard Lyon 1 University 69622 Lyon France
| | - Sébastien Lustig
- Orthopaedic Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital 69004 Lyon France,University of Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406 69622 Lyon France
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Shatrov J, Foissey C, Batailler C, Gunst S, Servien E, Lustig S. How long does image based robotic total knee arthroplasty take during the learning phase? Analysis of the key steps from the first fifty cases. Int Orthop 2023; 47:437-446. [PMID: 36355082 DOI: 10.1007/s00264-022-05618-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 10/19/2022] [Indexed: 11/11/2022]
Abstract
INTRODUCTION Robotically assisted total knee arthroplasty (RA-TKA) is an emerging surgical tool. The purpose of this study was to analyze the length of time taken to perform the key steps of a RA-TKA for a surgeon and centre new to the MAKO robotic system. METHOD This was a prospective cohort study of the first 50 patients undergoing TKA using a robotic platform (Mako, Stryker, Kalamazoo, MI, USA) performed by a single surgeon. Each key surgical step was recorded. The first 50 patients were chronologically allocated into five groups of ten and compared. RESULTS Mean operation length was 59.4 ± 7.4 min with significant improvement after 30 cases. A significant effect on certain steps of the surgery also occurred over 50 cases: after 30 cases for pre-operative planning (3.8 min in group 1 versus 1.2 min in group 4, p < 0.005), ten cases for registration time (5.2 min in group 1 versus 3.8 in group 2, p = 0.039) and ten cases for tibial cutting time (1.6 min in group 1 versus 1.3 in group 2, p < 0.005). Nurse setup, femur cutting, and intraoperative planning did not demonstrate a significant improvement in time over 50 cases. CONCLUSION A significant decrease in total operating length occurred after the 30th case. Anatomical registration and tibial cutting time demonstrated the largest improvements. MAKO image-based robotically assisted TKA is not a time-intensive intervention for both the surgeon and scrub nursing staff, and significant improvements in total surgical time occurs early in the learning phase.
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Affiliation(s)
- Jobe Shatrov
- Department of Orthopedic Surgery and Sport Medicine, FIFA Medical Centre of Excellence, Hôpital de La Croix Rousse - Lyon University, 103 Grande Rue de La Croix Rousse, 69004, Lyon, France. .,Sydney Orthopaedic Research Institute (SORI) at Landmark Orthopaedics- St. Leonards, Sydney, Australia.
| | - Constant Foissey
- Department of Orthopedic Surgery and Sport Medicine, FIFA Medical Centre of Excellence, Hôpital de La Croix Rousse - Lyon University, 103 Grande Rue de La Croix Rousse, 69004, Lyon, France
| | - Cécile Batailler
- Department of Orthopedic Surgery and Sport Medicine, FIFA Medical Centre of Excellence, Hôpital de La Croix Rousse - Lyon University, 103 Grande Rue de La Croix Rousse, 69004, Lyon, France
| | - Stanislas Gunst
- Department of Orthopedic Surgery and Sport Medicine, FIFA Medical Centre of Excellence, Hôpital de La Croix Rousse - Lyon University, 103 Grande Rue de La Croix Rousse, 69004, Lyon, France
| | - Elvire Servien
- Department of Orthopedic Surgery and Sport Medicine, FIFA Medical Centre of Excellence, Hôpital de La Croix Rousse - Lyon University, 103 Grande Rue de La Croix Rousse, 69004, Lyon, France.,Interuniversity Laboratory of Human Movement Science, Université Lyon 1, 7424, Lyon, EA, France
| | - Sébastien Lustig
- Department of Orthopedic Surgery and Sport Medicine, FIFA Medical Centre of Excellence, Hôpital de La Croix Rousse - Lyon University, 103 Grande Rue de La Croix Rousse, 69004, Lyon, France.,UMR_T9406, Université de Lyon, Université Claude Bernard Lyon 1, IFSTTAR, 69622, Lyon, LBMC, France
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Ciolli G, Mesnard G, Deroche E, Gunst S, Batailler C, Servien E, Lustig S. Is Cemented Dual-Mobility Cup a Reliable Option in Primary and Revision Total Hip Arthroplasty: A Systematic Review. J Pers Med 2022; 13:jpm13010081. [PMID: 36675742 PMCID: PMC9867154 DOI: 10.3390/jpm13010081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/22/2022] [Accepted: 12/25/2022] [Indexed: 12/31/2022] Open
Abstract
Background: Instability is a common complication following total hip arthroplasty (THA). The dual mobility cup (DMC) allows a reduction in the dislocation rate. The goal of this systematic review was to clarify the different uses and outcomes according to the indications of the cemented DMC (C-DMC). Methods: A systematic review was performed using the keywords "Cemented Dual Mobility Cup" or "Cemented Tripolar Cup" without a publication year limit. Of the 465 studies identified, only 56 were eligible for the study. Results: The overall number of C-DMC was 3452 in 3426 patients. The mean follow-up was 45.9 months (range 12-98.4). In most of the cases (74.5%) C-DMC was used in a revision setting. In 57.5% DMC was cemented directly into the bone, in 39.6% into an acetabular reinforcement and in 3.2% into a pre-existing cup. The overall dislocation rate was 2.9%. The most frequent postoperative complications were periprosthetic infections (2%); aseptic loosening (1.1%) and mechanical failure (0.5%). The overall revision rate was 4.4%. The average survival rate of C-DMC at the last follow-up was 93.5%. Conclusions: C-DMC represents an effective treatment option to limit the risk of dislocations and complications for both primary and revision surgery. C-DMC has good clinical outcomes and a low complication rate.
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Affiliation(s)
- Gianluca Ciolli
- Orthopaedic Department, Lyon North University Hospital, Hôpital de La Croix Rousse, Hospices Civils de Lyon, 103 Grande Rue de la Croix Rousse, 69004 Lyon, France
- Orthopaedics and Traumatology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Sacred Heart Catholic University, 00168 Rome, Italy
| | - Guillaume Mesnard
- Orthopaedic Department, Lyon North University Hospital, Hôpital de La Croix Rousse, Hospices Civils de Lyon, 103 Grande Rue de la Croix Rousse, 69004 Lyon, France
- Correspondence:
| | - Etienne Deroche
- Orthopaedic Department, Lyon North University Hospital, Hôpital de La Croix Rousse, Hospices Civils de Lyon, 103 Grande Rue de la Croix Rousse, 69004 Lyon, France
| | - Stanislas Gunst
- Orthopaedic Department, Lyon North University Hospital, Hôpital de La Croix Rousse, Hospices Civils de Lyon, 103 Grande Rue de la Croix Rousse, 69004 Lyon, France
- Univ Lyon, Claude Bernard Lyon 1 University, IFST-TAR, LBMC UMR_T9406, 69622 Lyon, France
| | - Cécile Batailler
- Orthopaedic Department, Lyon North University Hospital, Hôpital de La Croix Rousse, Hospices Civils de Lyon, 103 Grande Rue de la Croix Rousse, 69004 Lyon, France
- Univ Lyon, Claude Bernard Lyon 1 University, IFST-TAR, LBMC UMR_T9406, 69622 Lyon, France
| | - Elvire Servien
- Orthopaedic Department, Lyon North University Hospital, Hôpital de La Croix Rousse, Hospices Civils de Lyon, 103 Grande Rue de la Croix Rousse, 69004 Lyon, France
- LIBM—EA 7424, Interuniversity Laboratory of Biology of Mobility, Claude Bernard Lyon 1 University, 69622 Lyon, France
| | - Sébastien Lustig
- Orthopaedic Department, Lyon North University Hospital, Hôpital de La Croix Rousse, Hospices Civils de Lyon, 103 Grande Rue de la Croix Rousse, 69004 Lyon, France
- Univ Lyon, Claude Bernard Lyon 1 University, IFST-TAR, LBMC UMR_T9406, 69622 Lyon, France
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9
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Shatrov J, Batailler C, Sappey-Marinier E, Gunst S, Servien E, Lustig S. Correction to: Kinematic alignment fails to achieve balancing in 50% of varus knees and resects more bone compared to functional alignment. Knee Surg Sports Traumatol Arthrosc 2022; 31:2046-2047. [PMID: 36190528 DOI: 10.1007/s00167-022-07170-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Affiliation(s)
- Jobe Shatrov
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France. .,Sydney Orthopaedic Research Institute at Landmark Orthopaedics, St. Leonards, Sydney, Australia.
| | - Cécile Batailler
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France.,Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406, 69622, Lyon, France
| | - Elliot Sappey-Marinier
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France
| | - Stanislas Gunst
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France.,Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406, 69622, Lyon, France
| | - Elvire Servien
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France.,Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406, 69622, Lyon, France
| | - Sebastien Lustig
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France.,Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406, 69622, Lyon, France
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10
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Shatrov J, Batailler C, Sappey-Marinier E, Gunst S, Servien E, Lustig S. Correction Notice to: Functional Alignment Philosophy in Total Knee Arthroplasty - Rationale and technique for the varus morphotype using a CT based robotic platform and individualized planning. SICOT J 2022; 8:18. [PMID: 35593693 PMCID: PMC9121852 DOI: 10.1051/sicotj/2022017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 04/19/2022] [Indexed: 11/14/2022] Open
Affiliation(s)
- Jobe Shatrov
- Department of Orthopaedics, Croix Rousse Hospital, University of Lyon 1, 69004 Lyon, France - Sydney Orthopaedic Research Institute, Chatswood 2065, Australia
| | - Cécile Batailler
- Department of Orthopaedics, Croix Rousse Hospital, University of Lyon 1, 69004 Lyon, France - Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406, 69622 Lyon, France
| | - Elliot Sappey-Marinier
- Department of Orthopaedics, Croix Rousse Hospital, University of Lyon 1, 69004 Lyon, France - Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406, 69622 Lyon, France
| | - Stanislas Gunst
- Department of Orthopaedics, Croix Rousse Hospital, University of Lyon 1, 69004 Lyon, France - Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406, 69622 Lyon, France
| | - Elvire Servien
- Department of Orthopaedics, Croix Rousse Hospital, University of Lyon 1, 69004 Lyon, France - Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406, 69622 Lyon, France
| | - Sebastien Lustig
- Department of Orthopaedics, Croix Rousse Hospital, University of Lyon 1, 69004 Lyon, France - Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406, 69622 Lyon, France
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11
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Gunst S, Nigues A, Vogels J, Servien E, Lustig S, Nove-Josserand L, Collotte P. Using standard-length compactors to implant short humeral stems in total shoulder arthroplasty: A cadaver study of humeral stem alignment. PLoS One 2022; 17:e0268075. [PMID: 35511898 PMCID: PMC9070928 DOI: 10.1371/journal.pone.0268075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 04/21/2022] [Indexed: 11/21/2022] Open
Abstract
Background Short-stem implants in shoulder arthroplasty were recently developed and reported clinical outcomes are good. However, radiological analysis often reveals humeral stem misalignment in the frontal plane, along with high filling ratios that can lead to proximal bone remodeling under stress shielding. The aim of this cadaveric study was to test whether using compactors for standard-length (> 100 mm) stems to implant short (< 100 mm) stems reduces the risk of stem misalignment without compromising in terms of a higher filling ratio. Methods In a cadaveric study, twenty short stems were implanted using instrumentation for standard-length stems. Alignment and filling ratios were evaluated on anteroposterior radiographs for both the compactors and the stems. The angular deviations (α) from the humeral axis of the compactors and the short stems were measured. Misalignment was defined as |α| > 5°. Metaphyseal and diaphyseal filling ratios were calculated and defined as either high (≥ 0.7) or low (< 0.7). Results The median angular deviations of the compactors and the short stems were respectively 1.6° (range, 0.03 to 5.9°) and 1.3° (range, 0.3 to 9.6°). Nineteen of the 20 compactors (95%) and 17/20 short stems (85%) were correctly aligned. The proportions of correctly aligned compactors and stems were not significantly different (95% CI, −0.33 to 0.11; Z-test of proportions p = .60), and the respective angular deviations were significantly correlated (Spearman ρ = .60, p = 0.006). The diaphyseal and metaphyseal filling ratios of the compactors and the stems were all low. Conclusions In this series of 20 implants in cadavers, the narrow short humeral stems implanted with compactors for standard-length stems were correctly aligned with the humeral axis. This approach may be a way to achieve both correct frontal alignment and low filling ratios.
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Affiliation(s)
- Stanislas Gunst
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France
- Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406, Lyon, France
- * E-mail:
| | - Ana Nigues
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France
| | - Jérôme Vogels
- Hand and Upper Extremity Surgical Institute, Clinique du Medipole, Villeurbanne, France
| | - Elvire Servien
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France
- LIBM–EA 7424, Interuniversity Laboratory of Biology of Mobility, Claude Bernard Lyon 1 University, Lyon, France
| | - Sébastien Lustig
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France
- Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406, Lyon, France
| | - Laurent Nove-Josserand
- Ramsay Générale de Santé, Jean Mermoz Private Hospital, Centre Orthopédique Santy, Lyon, France
| | - Philippe Collotte
- Ramsay Générale de Santé, Jean Mermoz Private Hospital, Centre Orthopédique Santy, Lyon, France
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12
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Shatrov J, Battelier C, Sappey-Marinier E, Gunst S, Servien E, Lustig S. Functional Alignment Philosophy in Total Knee Arthroplasty – Rationale and technique for the varus morphotype using a CT based robotic platform and individualized planning. SICOT J 2022; 8:11. [PMID: 35363136 PMCID: PMC8973302 DOI: 10.1051/sicotj/2022010] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 03/07/2022] [Indexed: 12/19/2022] Open
Abstract
Introduction: Alignment techniques in total knee arthroplasty (TKA) continue to evolve. Functional alignment (FA) is a novel technique that utilizes robotic tools to deliver TKA with the aim of respecting individual anatomical variations. The purpose of this paper is to describe the rationale and technique of FA in the varus morphotype with the use of a robotic platform. Rationale: FA reproduces constitutional knee anatomy within quantifiable target ranges. The principles are founded on a comprehensive assessment and understanding of individual anatomical variations with the aim of delivering personalized TKA. The principles are functional pre-operative planning, reconstitution of native coronal alignment, restoration of dynamic sagittal alignment within 5° of neutral, maintenance of joint-line-obliquity and height, implant sizing to match anatomy and a joint that is balanced in flexion and extension through manipulation of implant positioning rather than soft tissue releases. Technique: An individualized plan is created from pre-operative imaging. Next, a reproducible and quantifiable method of soft tissue laxity assessment is performed in extension and flexion that accounts for individual variation in soft tissue laxity. A dynamic virtual 3D model of the joint and implant position that can be manipulated in all three planes is modified to achieve target gap measurements while maintaining the joint line phenotype and a final limb position within a defined coronal and sagittal range. Conclusion: Functional alignment is a novel knee arthroplasty technique that aims to restore constitutional bony alignment and balance the laxity of the soft tissues by placing and sizing implants in a manner that it respects the variations in individual anatomy. This paper presents the approach for the varus morphotype.
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Affiliation(s)
- Jobe Shatrov
- Department of Orthopaedics, Croix Rousse Hospital, University of Lyon 1 69004 Lyon France
- Sydney Orthopaedic Research Institute Chatswood 2065 Australia
| | - Cécile Battelier
- Department of Orthopaedics, Croix Rousse Hospital, University of Lyon 1 69004 Lyon France
- Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406 69622 Lyon France
| | - Elliot Sappey-Marinier
- Department of Orthopaedics, Croix Rousse Hospital, University of Lyon 1 69004 Lyon France
- Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406 69622 Lyon France
| | - Stanislas Gunst
- Department of Orthopaedics, Croix Rousse Hospital, University of Lyon 1 69004 Lyon France
- Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406 69622 Lyon France
| | - Elvire Servien
- Department of Orthopaedics, Croix Rousse Hospital, University of Lyon 1 69004 Lyon France
- Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406 69622 Lyon France
| | - Sebastien Lustig
- Department of Orthopaedics, Croix Rousse Hospital, University of Lyon 1 69004 Lyon France
- Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406 69622 Lyon France
- Corresponding author:
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13
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Shatrov J, Sappey-Marinier E, Kafelov M, Gunst S, Batailler C, Servien E, Lustig S. Similar outcomes including maximum knee flexion between mobile bearing condylar-stabilised and fixed bearing posterior-stabilised prosthesis: a case control study. J Exp Orthop 2022; 9:17. [PMID: 35169966 PMCID: PMC8847635 DOI: 10.1186/s40634-022-00456-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 02/11/2022] [Indexed: 11/12/2022] Open
Abstract
Purpose Prosthesis design influences stability in total knee arthroplasty and may affect maximum knee flexion. Posterior-stabilised (PS) and condylar-stabilised (CS) designed prosthesis do not require a posterior-cruciate ligament to provide stability. The aim of the current study was to compare the range of motion (ROM) and clinical outcomes of patients undergoing cemented total knee arthroplasty (TKA) using either a PS or CS design prosthesis. Methods A total of 167 consecutive primary TKAs with a CS bearing (mobile deep-dish polyethylene) were retrospectively identified and compared to 332 primary TKA with a PS constraint, with similar design components from the same manufacturer. Passive ROM was assessed at last follow-up with use of a handheld goniometer. Clinical scores were assessed using Patient-Reported Outcome Measures (PROMs); International Knee Society (IKS) knee and function scores and satisfaction score. Radiographic assessment was performed pre and post operatively consisting of mechanical femorotibial angle (mFTA), femoral and tibial mechanical angles measured medially (FMA and TMA, respectively) on long leg radiographs, tibial slope and patella height as measured by the Blackburne-Peel index (BPI). Results Both groups had a mean follow-up of 3 years (range 2–3.7 years). Mean post-operative maximum knee flexion was 117° ± 4.9° in the PS group and 119° ± 5.2° in the CS group (p = 0.29). Postoperative IKS scores were significantly improved in both groups compared to preoperative scores (p < 0.01). The mean IKS score in the PS group was 170.9 ± 24.1 compared to 170.3 ± 22.5 in the CS group (p = 0.3). Both groups had similar radiographic outcomes as determined by coronal and sagittal alignment, tibial slope and posterior condylar offset ratio measurements. When considering the size of tibial slope change and posterior-condylar offset ratio, there was no differences between groups (p = 0.4 and 0.59 respectively). The PS group had more interventions for post-operative stiffness (arthrolysis or manipulation under anaesthesia) 8 (2.7%) compared to 1 (0.6%) in the CS group (p = 0.17). Conclusion Condylar-stabilised TKA have similar patient outcomes and ROM at a mean follow-up of 3 years compared to PS TKA. Highly congruent inserts could be used without compromising results in TKA at short term. Level of evidence Level IV, retrospective case control study.
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Affiliation(s)
- Jobe Shatrov
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France.,Sydney Orthopaedic Research Institute, Chatswood, Sydney, Australia.,University of Notre Dame Australia, Sydney, Australia.,Hornsby and Ku-Ring Hospital, Sydney, Australia
| | - Elliot Sappey-Marinier
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France. .,Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406, F69622, Lyon, France.
| | - Moussa Kafelov
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France
| | - Stanislas Gunst
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France
| | - Cécile Batailler
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France.,Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406, F69622, Lyon, France
| | - Elvire Servien
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France.,LIBM - EA 7424, Interuniversity Laboratory of Biology of Mobility, Claude Bernard Lyon 1 University, Lyon, France
| | - Sébastien Lustig
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France.,Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406, F69622, Lyon, France
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14
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Miailhes P, Conrad A, Sobas C, Laurent F, Lustig S, Ferry T, Ferry T, Valour F, Perpoint T, Ader F, Roux S, Becker A, Triffault-Fillit C, Conrad A, Pouderoux C, Chauvelot P, Chabert P, Lippman J, Braun E, Lustig S, Servien E, Batailler C, Gunst S, Schmidt A, Sappey-Marinier E, Ode Q, Fessy MH, Viste A, Besse JL, Chaudier P, Louboutin L, Van Haecke A, Mercier M, Belgaid V, Gazarian A, Walch A, Bertani A, Rongieras F, Martres S, Trouillet F, Barrey C, Mojallal A, Brosset S, Hanriat C, Person H, Céruse P, Fuchsmann C, Gleizal A, Aubrun F, Dziadzko M, Macabéo C, Patrascu D, Laurent F, Beraud L, Roussel-Gaillard T, Dupieux C, Kolenda C, Josse J, Craighero F, Boussel L, Pialat JB, Morelec I, Tod M, Gagnieu MC, Goutelle S, Mabrut E. Coxiella burnetti prosthetic joint infection in an immunocompromised woman: iterative surgeries, prolonged ofloxacin-rifampin treatment and complex reconstruction were needed for the cure. Arthroplasty 2021; 3:43. [PMID: 35610714 PMCID: PMC8796341 DOI: 10.1186/s42836-021-00097-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 09/16/2021] [Indexed: 12/04/2022] Open
Abstract
Background Q fever is a zoonotic disease caused by the bacterium Coxiella burnetii, a strictly intracellular pathogen that can cause acute and chronic infection. Chronic Q fever can occur in immunocompetent as well as in immuno-compromised hosts, as a persistent localized infection. The main localizations are endocardial, vascular and, less frequently, osteoarticular. The most frequent osteoarticular form is spondyliscitis. Recommended treatment is combined doxycycline and hydroxychloroquine for 18 months, with cotrimoxazole as another option. Coxiella burnetti infection has been implicated in rare cases of prosthetic joint infection (PJI), and the medical and surgical management and outcome in such cases have been little reported. Case presentation We report an unusual case of chronic Q fever involving a hip arthroplasty in an immunocompromised woman treated with tumor necrosis factor (TNF)-α blockers for rheumatoid arthritis. Numerous surgical procedures (explantation, “second look”, femoral resection and revision by megaprosthesis), modification of the immunosuppressant therapy and switch from doxycycline-hydroxychloroquine to prolonged ofloxacin-rifampin combination therapy were needed to achieve reconstruction and treat the PJI, with a follow-up of 7 years. Conclusions Coxiella burnetti PJI is a complex infection that requires dedicated management in an experienced reference center. Combined use of ofloxacin-rifampin can be effective.
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15
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Triffault-Fillit C, Mabrut E, Corbin K, Braun E, Becker A, Goutelle S, Chaudier P, Fessy MH, Dupieux C, Laurent F, Gunst S, Lustig S, Chidiac C, Ferry T, Valour F. Tolerance and microbiological efficacy of cefepime or piperacillin/tazobactam in combination with vancomycin as empirical antimicrobial therapy of prosthetic joint infection: a propensity-matched cohort study. J Antimicrob Chemother 2021; 75:2299-2306. [PMID: 32407512 DOI: 10.1093/jac/dkaa166] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 03/27/2020] [Accepted: 03/31/2020] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND The use of piperacillin/tazobactam with vancomycin as empirical antimicrobial therapy (EAT) for prosthetic joint infection (PJI) has been associated with an increased risk of acute kidney injury (AKI), leading us to propose cefepime as an alternative since 2017 in our reference centre. OBJECTIVES To compare microbiological efficacy and tolerance of these two EAT strategies. METHODS All adult patients with PJI empirically treated with vancomycin+cefepime (n = 89) were enrolled in a prospective observational study and matched with vancomycin+piperacillin/tazobactam-treated historical controls (n = 89) according to a propensity score including age, baseline renal function and concomitant use of other nephrotoxic agents. The two groups were compared using Kaplan-Meier curve analysis, and non-parametric tests regarding the proportion of efficacious empirical regimen and the incidence of empirical therapy-related adverse events (AE). RESULTS Among 146 (82.0%) documented infections, the EAT was considered efficacious in 77 (98.7%) and 65 (98.5%) of the piperacillin/tazobactam- and cefepime-treated patients, respectively (P = 1.000). The rate of AE, particularly AKI, was significantly higher in the vancomycin+piperacillin/tazobactam group [n = 27 (30.3%) for all AE and 23 (25.8%) for AKI] compared with the vancomycin+cefepime [n = 13 (14.6%) and 6 (6.7%)] group (P = 0.019 and <0.001, respectively), leading to premature EAT discontinuation in 20 (22.5%) and 5 (5.6%) patients (P = 0.002). The two groups were not significantly different regarding their comorbidities, and AKI incidence was not related to vancomycin plasma overexposure. CONCLUSIONS Based on the susceptibility profile of bacterial isolates from included patients, microbiological efficacy of both strategies was expected to be similar, but vancomycin + cefepime was associated with a significantly lower incidence of AKI.
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Affiliation(s)
- C Triffault-Fillit
- Service des maladies infectieuses et tropicales, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France.,Centre interrégional de référence pour la prise en charge des infections ostéo-articulaires complexes (CRIOAc Lyon), Hospices Civils de Lyon, Lyon, France
| | - E Mabrut
- Centre interrégional de référence pour la prise en charge des infections ostéo-articulaires complexes (CRIOAc Lyon), Hospices Civils de Lyon, Lyon, France
| | - K Corbin
- Service des maladies infectieuses et tropicales, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France.,Centre interrégional de référence pour la prise en charge des infections ostéo-articulaires complexes (CRIOAc Lyon), Hospices Civils de Lyon, Lyon, France
| | - E Braun
- Service des maladies infectieuses et tropicales, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France.,Centre interrégional de référence pour la prise en charge des infections ostéo-articulaires complexes (CRIOAc Lyon), Hospices Civils de Lyon, Lyon, France
| | - A Becker
- Service des maladies infectieuses et tropicales, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France.,Centre interrégional de référence pour la prise en charge des infections ostéo-articulaires complexes (CRIOAc Lyon), Hospices Civils de Lyon, Lyon, France
| | - S Goutelle
- Centre interrégional de référence pour la prise en charge des infections ostéo-articulaires complexes (CRIOAc Lyon), Hospices Civils de Lyon, Lyon, France.,Service pharmaceutique, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France.,Université Claude Bernard Lyon 1, ISPB Faculté de Pharmacie de Lyon, UMR CNRS 5558, Laboratoire de Biométrie et Biologie Évolutive, Lyon, France
| | - P Chaudier
- Centre interrégional de référence pour la prise en charge des infections ostéo-articulaires complexes (CRIOAc Lyon), Hospices Civils de Lyon, Lyon, France.,Service de chirurgie orthopédique, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Lyon, France
| | - M H Fessy
- Centre interrégional de référence pour la prise en charge des infections ostéo-articulaires complexes (CRIOAc Lyon), Hospices Civils de Lyon, Lyon, France.,Service de chirurgie orthopédique, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Lyon, France.,Université Claude Bernard Lyon 1, Lyon, France
| | - C Dupieux
- Centre interrégional de référence pour la prise en charge des infections ostéo-articulaires complexes (CRIOAc Lyon), Hospices Civils de Lyon, Lyon, France.,CIRI-Centre International de Recherche en Infectiologie, Inserm, U1111, Université´ Claude Bernard Lyon 1, CNRS, UMR5308, Ecole Normale Supérieure de Lyon, Univ Lyon, F-69007, Lyon, France.,Institut des agents infectieux, Laboratoire de bactériologie, Centre National de référence des staphylocoques, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
| | - F Laurent
- Centre interrégional de référence pour la prise en charge des infections ostéo-articulaires complexes (CRIOAc Lyon), Hospices Civils de Lyon, Lyon, France.,CIRI-Centre International de Recherche en Infectiologie, Inserm, U1111, Université´ Claude Bernard Lyon 1, CNRS, UMR5308, Ecole Normale Supérieure de Lyon, Univ Lyon, F-69007, Lyon, France.,Institut des agents infectieux, Laboratoire de bactériologie, Centre National de référence des staphylocoques, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
| | - S Gunst
- Centre interrégional de référence pour la prise en charge des infections ostéo-articulaires complexes (CRIOAc Lyon), Hospices Civils de Lyon, Lyon, France.,Service de chirurgie orthopédique, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
| | - S Lustig
- Centre interrégional de référence pour la prise en charge des infections ostéo-articulaires complexes (CRIOAc Lyon), Hospices Civils de Lyon, Lyon, France.,Université Claude Bernard Lyon 1, Lyon, France.,Service de chirurgie orthopédique, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
| | - C Chidiac
- Service des maladies infectieuses et tropicales, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France.,Centre interrégional de référence pour la prise en charge des infections ostéo-articulaires complexes (CRIOAc Lyon), Hospices Civils de Lyon, Lyon, France
| | - T Ferry
- Service des maladies infectieuses et tropicales, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France.,Centre interrégional de référence pour la prise en charge des infections ostéo-articulaires complexes (CRIOAc Lyon), Hospices Civils de Lyon, Lyon, France.,CIRI-Centre International de Recherche en Infectiologie, Inserm, U1111, Université´ Claude Bernard Lyon 1, CNRS, UMR5308, Ecole Normale Supérieure de Lyon, Univ Lyon, F-69007, Lyon, France
| | - F Valour
- Service des maladies infectieuses et tropicales, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France.,Centre interrégional de référence pour la prise en charge des infections ostéo-articulaires complexes (CRIOAc Lyon), Hospices Civils de Lyon, Lyon, France.,CIRI-Centre International de Recherche en Infectiologie, Inserm, U1111, Université´ Claude Bernard Lyon 1, CNRS, UMR5308, Ecole Normale Supérieure de Lyon, Univ Lyon, F-69007, Lyon, France
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Castoldi M, Magnussen RA, Gunst S, Batailler C, Neyret P, Lustig S, Servien E. A Randomized Controlled Trial of Bone-Patellar Tendon-Bone Anterior Cruciate Ligament Reconstruction With and Without Lateral Extra-articular Tenodesis: 19-Year Clinical and Radiological Follow-up. Am J Sports Med 2020; 48:1665-1672. [PMID: 32368935 DOI: 10.1177/0363546520914936] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Arthroscopic anterior cruciate ligament (ACL) reconstruction (ACLR) with a bone-patellar tendon-bone graft (BTB) is a reliable surgical option for the control of anterior knee laxity after ACL injury. The addition of a lateral extra-articular tenodesis (LET) may improve control of rotation knee laxity and improve short-term graft survival in high-risk patients. PURPOSE The aims of this study were to compare long-term patient-reported outcomes, graft survival, and risk of osteoarthritis between ACLR with and without LET. STUDY DESIGN Randomized controlled trial; Level of evidence, 2. METHODS This study included 121 consecutive knees (120 patients) presenting to a single center with an ACL rupture between 1998 and 1999. In total, 61 knees were randomized to an isolated BTB ACLR, and 60 knees were randomized to a BTB ACLR with an extra-articular lateral tenodesis with gracilis tendon (modified Lemaire). RESULTS Eighty knees in 79 patients (66%) were available for follow-up at a postoperative mean of 19.4 years (range, 19-20.2). Of those patients, 43 had a clinical examination and completed patient-reported outcome questionnaires, and the other 37 patients were evaluated through the questionnaires alone. Standard radiographs were available for 45 patients and laximetry (TELOS) for 42 patients. Mean subjective International Knee Documentation Committee score at last follow-up was 81.8, and no differences were noted between the BTB and BTB-LET groups (P = .7). Two-thirds of patients were still participating in pivoting sports. A total of 17 knees (21%) experienced a graft failure, 5 of which (6%) underwent revision ACLR. There was no significant difference in graft failure risk between the BTB group (29%) and the BTB-LET group (13%; P = .1). Lateral tibiofemoral osteoarthritis was significantly more frequent in the BTB-LET group (59%) as compared with the BTB group (22%; P = .02). Lateral compartment osteoarthritis was correlated with partial lateral meniscectomy. CONCLUSION There were no significant differences in long-term patient-reported outcomes after ACLR with or without an LET. LET may increase the risk of lateral compartment osteoarthritis at long-term follow-up. There was a trend toward decreased graft failure risk with the addition of LET but this study was underpowered to assess this outcome.
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Affiliation(s)
- Marie Castoldi
- Institut Universitaire Locomoteur et du Sport, Department of Orthopaedic Surgery, Centre Hospitalo-Universitaire de Nice, Nice, France
| | - Robert A Magnussen
- Department of Orthopaedics, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Stanislas Gunst
- Department of Orthopedic Surgery and Sport Medicine, Croix-Rousse Hospital, FIFA Medical Center of Excellence, Lyon, France
| | - Cécile Batailler
- Department of Orthopedic Surgery and Sport Medicine, Croix-Rousse Hospital, FIFA Medical Center of Excellence, Lyon, France
| | | | - Sébastien Lustig
- Department of Orthopedic Surgery and Sport Medicine, Croix-Rousse Hospital, FIFA Medical Center of Excellence, Lyon, France
| | - Elvire Servien
- Department of Orthopedic Surgery and Sport Medicine, Croix-Rousse Hospital, FIFA Medical Center of Excellence, Lyon, France.,EA 7424-Inter-university Laboratory of Human Movement Science, University Lyon 1, Lyon, France
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Schneider A, Gaillard R, Gunst S, Batailler C, Neyret P, Lustig S, Servien E. Combined ACL reconstruction and opening wedge high tibial osteotomy at 10-year follow-up: excellent laxity control but uncertain return to high level sport. Knee Surg Sports Traumatol Arthrosc 2020; 28:960-968. [PMID: 31312875 DOI: 10.1007/s00167-019-05592-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 06/21/2019] [Indexed: 02/06/2023]
Abstract
PURPOSE The purpose of this study was to report the long-term outcomes of a continuous series of patients who underwent simultaneous anterior cruciate ligament (ACL) reconstruction and opening wedge high tibial osteotomy (HTO) for varus-related early medial tibio-femoral osteoarthritis. It was hypothesized that this combined surgery sustainably allowed return to sport with efficient clinical and radiological results. METHODS From 1995 to 2015, all combined ACL reconstruction (bone-patellar tendon-bone graft) and opening wedge HTO for anterior laxity and early medial arthritis were included. Clinical evaluation at final follow-up used Tegner activity score, Lysholm score, subjective and objective IKDC scores. Radiologic evaluation consisted in full-length, standing, hip-to-ankle X-rays, monopodal weight-bearing X-rays and skyline views. AP laxity assessment used Telos™ at 150 N load. Student's t test was performed for matched parametric data, Wilcoxon for nonparametric variables and Friedman test was used to compare small cohorts, with p < 0.05. RESULTS 35 Patients (36 knees) were reviewed with a mean follow-up of 10 ± 5.2 years. The mean age at surgery was 39 ± 9. At final follow-up 28 patients (80%) returned to sport (IKDC ≥ B): 11 patients (31%) returned to sport at the same level and 6 (17%) to competitive sports. Mean subjective IKDC and Lysholm scores were 71.8 ± 14.9 and 82 ± 14.1, respectively. The mean decrease of the Tegner activity level from preinjury state to follow-up was 0.8 (p < 0.01). Mean side-to-side difference in anterior tibial translation was 5.1 ± 3.8 mm. Three patients were considered as failures. The mean preoperative mechanical axis was 4.2° ± 2.6° varus and 0.8° ± 2.7° valgus at follow-up. Osteoarthritis progression for medial, lateral, and femoro-patellar compartments was recorded for 12 (33%, p < 0.05), 6 (17%, p < 0.001), and 8 (22%, p < 0.05) knees, respectively. No femoro-tibial osteoarthritis progression was observed in 22 knees (61%). CONCLUSIONS Combined ACL reconstruction and opening wedge HTO allowed sustainable stabilization of the knee at 10-year follow-up. However, return to sport at the same level was possible just for one-third of patients, with femoro-tibial osteoarthritis progression in 39% of cases. LEVEL OF EVIDENCE III.
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Affiliation(s)
- A Schneider
- Department of Orthopaedic Surgery, Groupement Hospitalier Nord, University Lyon 1, 103 Grande rue de la Croix-Rousse, 69004, Lyon, France
| | - R Gaillard
- Department of Orthopaedic Surgery, Groupement Hospitalier Nord, University Lyon 1, 103 Grande rue de la Croix-Rousse, 69004, Lyon, France.
| | - S Gunst
- Department of Orthopaedic Surgery, Groupement Hospitalier Nord, University Lyon 1, 103 Grande rue de la Croix-Rousse, 69004, Lyon, France
| | - C Batailler
- Department of Orthopaedic Surgery, Groupement Hospitalier Nord, University Lyon 1, 103 Grande rue de la Croix-Rousse, 69004, Lyon, France
| | - P Neyret
- Department of Orthopaedic Surgery, Groupement Hospitalier Nord, University Lyon 1, 103 Grande rue de la Croix-Rousse, 69004, Lyon, France
| | - S Lustig
- Department of Orthopaedic Surgery, Groupement Hospitalier Nord, University Lyon 1, 103 Grande rue de la Croix-Rousse, 69004, Lyon, France.,Univ Lyon, IFSTTAR, LBMC, UMR_T9406, Université Claude Bernard Lyon 1, 69622, Lyon, France
| | - E Servien
- Department of Orthopaedic Surgery, Groupement Hospitalier Nord, University Lyon 1, 103 Grande rue de la Croix-Rousse, 69004, Lyon, France.,Univ Lyon, LIBM, Université Claude Bernard Lyon 1, Lyon, France
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Ferry T, Boucher F, Fevre C, Perpoint T, Chateau J, Petitjean C, Josse J, Chidiac C, L’hostis G, Leboucher G, Laurent F, Ferry T, Valour F, Perpoint T, Boibieux A, Biron F, Miailhes P, Ader F, Becker A, Roux S, Triffault-Fillit C, Conrad A, Bosch A, Daoud F, Lippman J, Braun E, Chidiac C, Lustig S, Servien E, Gaillard R, Schneider A, Gunst S, Batailler C, Fessy MH, Herry Y, Viste A, Chaudier P, Courtin C, Louboutin L, Martres S, Trouillet F, Barrey C, Jouanneau E, Jacquesson T, Mojallal A, Braye F, Boucher F, Shipkov H, Chateau J, Gleizal A, Aubrun F, Dziadzko M, Macabéo C, Laurent F, Rasigade JP, Dupieux C, Craighero F, Boussel L, Pialat JB, Morelec I, Janier M, Giammarile F, Tod M, Gagnieu MC, Goutelle S, Mabrut E. Innovations for the treatment of a complex bone and joint infection due to XDR Pseudomonas aeruginosa including local application of a selected cocktail of bacteriophages. J Antimicrob Chemother 2018; 73:2901-2903. [DOI: 10.1093/jac/dky263] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Tristan Ferry
- Service de Maladies Infectieuses, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
- Université Claude Bernard Lyon 1, Lyon, France
- Centre International de Recherche en Infectiologie, CIRI, Inserm U1111, CNRS UMR5308, ENS de Lyon, UCBL1, Lyon, France
- Centre Interrégional de Référence des Infections Ostéo-articulaires complexes (CRIOAc Lyon), Hospices Civils de Lyon, Lyon, France
| | - Fabien Boucher
- Service de Maladies Infectieuses, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
- Centre Interrégional de Référence des Infections Ostéo-articulaires complexes (CRIOAc Lyon), Hospices Civils de Lyon, Lyon, France
- Service de Chirurgie Plastique et reconstructrice, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
| | | | - Thomas Perpoint
- Service de Maladies Infectieuses, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
- Centre Interrégional de Référence des Infections Ostéo-articulaires complexes (CRIOAc Lyon), Hospices Civils de Lyon, Lyon, France
| | - Joseph Chateau
- Service de Maladies Infectieuses, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
- Université Claude Bernard Lyon 1, Lyon, France
- Centre Interrégional de Référence des Infections Ostéo-articulaires complexes (CRIOAc Lyon), Hospices Civils de Lyon, Lyon, France
- Service de Chirurgie Plastique et reconstructrice, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
| | | | - Jérôme Josse
- Université Claude Bernard Lyon 1, Lyon, France
- Centre International de Recherche en Infectiologie, CIRI, Inserm U1111, CNRS UMR5308, ENS de Lyon, UCBL1, Lyon, France
- Centre Interrégional de Référence des Infections Ostéo-articulaires complexes (CRIOAc Lyon), Hospices Civils de Lyon, Lyon, France
- Laboratoire de Bactériologie, Institut des Agents Infectieux, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
| | - Christian Chidiac
- Service de Maladies Infectieuses, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
- Université Claude Bernard Lyon 1, Lyon, France
- Centre International de Recherche en Infectiologie, CIRI, Inserm U1111, CNRS UMR5308, ENS de Lyon, UCBL1, Lyon, France
- Centre Interrégional de Référence des Infections Ostéo-articulaires complexes (CRIOAc Lyon), Hospices Civils de Lyon, Lyon, France
| | | | - Gilles Leboucher
- Pharmacie, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
| | - Frédéric Laurent
- Université Claude Bernard Lyon 1, Lyon, France
- Centre International de Recherche en Infectiologie, CIRI, Inserm U1111, CNRS UMR5308, ENS de Lyon, UCBL1, Lyon, France
- Centre Interrégional de Référence des Infections Ostéo-articulaires complexes (CRIOAc Lyon), Hospices Civils de Lyon, Lyon, France
- Laboratoire de Bactériologie, Institut des Agents Infectieux, Hôpital de la Croix-Rousse, Hospices Civils de Lyon, Lyon, France
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Godenèche A, Freychet B, Gunst S, Daggett M, Viste A, Walch G. Arthroscopic Reduction of Acute Traumatic Posterior Glenohumeral Dislocation and Anatomic Neck Fracture Without Internal Fixation: 2-Year Follow-up. Orthop J Sports Med 2018; 5:2325967117745486. [PMID: 29318173 PMCID: PMC5753989 DOI: 10.1177/2325967117745486] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Arnaud Godenèche
- Ramsay Générale de Santé, Hôpital Privé Jean Mermoz, Centre Orthopédique du Santy, Lyon, France
| | - Benjamin Freychet
- Ramsay Générale de Santé, Hôpital Privé Jean Mermoz, Centre Orthopédique du Santy, Lyon, France
| | - Stanislas Gunst
- Ramsay Générale de Santé, Hôpital Privé Jean Mermoz, Centre Orthopédique du Santy, Lyon, France
| | - Matt Daggett
- Orthopedic Surgeons Inc, Blue Springs, Missouri, USA
| | - Anthony Viste
- CHU Lyon Sud, Chirurgie Orthopédique & Traumatologie/Anatomie, Pierre Bénite, France
| | - Gilles Walch
- Ramsay Générale de Santé, Hôpital Privé Jean Mermoz, Centre Orthopédique du Santy, Lyon, France
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Malatray M, Roux JP, Gunst S, Pibarot V, Wegrzyn J. Highly crosslinked polyethylene: a safe alternative to conventional polyethylene for dual mobility cup mobile component. A biomechanical validation. Int Orthop 2016; 41:507-512. [PMID: 27837329 DOI: 10.1007/s00264-016-3334-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Accepted: 10/31/2016] [Indexed: 11/30/2022]
Abstract
PURPOSE Dual mobility cup (DMC) consists of a cobalt-chromium (CoCr) alloy cup articulated with a polyethylene (PE) mobile component capturing the femoral head in force using a snap-fit technique. This biomechanical study was the first to evaluate and compare the generation of cracks in the retentive area of DMC mobile components made of highly crosslinked PE (XLPE) or conventional ultra-high molecular weight PE (UHMWPE). METHODS Eighty mobile components designed for a 52-mm diameter Symbol® DMC (Dedienne Santé, Mauguio, France) and a 28-mm diameter femoral head were analyzed. Four groups of 20 mobile components were constituted according to the PE material: raw UHMWPE, sterilized UHMWPE, annealed XLPE and remelted XLPE. Ten mobile components in each group were impacted with a 28-mm diameter CoCr femoral head using a snap-fit technique. The occurrence, location and area of the cracks in the retentive area were investigated using micro-CT (Skyscan 1176®, Bruker, Aarsellar, Belgium) with a 35 μm nominal isotropic voxel size by two observers blinded to the PE material and impaction or not of the mobile components. RESULTS Compared to conventional UHMWPE, the femoral head snap-fit did not generate more or wider cracks in the retentive area of annealed or remelted XLPE mobile components. CONCLUSION This biomechanical study suggests that XLPE in DMC could be a safe alternative to conventional UHMWPE regarding the generation of cracks in the retentive area related to the femoral head snap-fit.
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Affiliation(s)
- Matthieu Malatray
- Department of Orthopedic Surgery - Pavillon T, Hôpital Edouard Herriot, Hospices Civils de Lyon, 5, place d'Arsonval, 69437, Lyon, France
- INSERM UMR 1033, Université de Lyon, Lyon, France
| | | | - Stanislas Gunst
- Department of Orthopedic Surgery - Pavillon T, Hôpital Edouard Herriot, Hospices Civils de Lyon, 5, place d'Arsonval, 69437, Lyon, France
| | - Vincent Pibarot
- Department of Orthopedic Surgery - Pavillon T, Hôpital Edouard Herriot, Hospices Civils de Lyon, 5, place d'Arsonval, 69437, Lyon, France
| | - Julien Wegrzyn
- Department of Orthopedic Surgery - Pavillon T, Hôpital Edouard Herriot, Hospices Civils de Lyon, 5, place d'Arsonval, 69437, Lyon, France.
- INSERM UMR 1033, Université de Lyon, Lyon, France.
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Abstract
"Increased aseptic tibial failures in patients with a BMI ≥35 and well-aligned total knee arthroplasties" published in The Journal of Arthroplasty on July 2, 2015 draws the conclusion that the risk of revision total knee arthroplasties (TKA) due to aseptic tibial component loosening is two times greater in patients with a BMI ≥35 kg/m(2), independent of age or limb alignment. This result confirms that obese patients are at a higher risk of mechanical complications after performing TKA, independently from the risk of infection. This study suggests that the management of obese patients for TKA must be meticulous, careful, and should inspire from great bone deformations in valgus of varus when choosing implants.
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Affiliation(s)
- Stanislas Gunst
- Hospices Civils de Lyon, Centre Hospitalier Lyon-Sud, Service de Chirurgie Orthopédique, Traumatologique et Médecine du Sport, Pierre Bénite Cedex, France
| | - Michel-Henri Fessy
- Hospices Civils de Lyon, Centre Hospitalier Lyon-Sud, Service de Chirurgie Orthopédique, Traumatologique et Médecine du Sport, Pierre Bénite Cedex, France
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22
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Gunst S, Del Chicca F, Fürst AE, Kuemmerle JM. Central tarsal bone fractures in horses not used for racing: Computed tomographic configuration and long-term outcome of lag screw fixation. Equine Vet J 2015; 48:585-9. [DOI: 10.1111/evj.12498] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Accepted: 08/05/2015] [Indexed: 11/30/2022]
Affiliation(s)
- S. Gunst
- Equine Hospital; Vetsuisse Faculty; University of Zurich; Switzerland
| | - F. Del Chicca
- Division of Diagnostic Imaging; Vetsuisse Faculty; University of Zurich; Switzerland
| | - A. E. Fürst
- Equine Hospital; Vetsuisse Faculty; University of Zurich; Switzerland
| | - J. M. Kuemmerle
- Equine Hospital; Vetsuisse Faculty; University of Zurich; Switzerland
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Gunst S, Villa V, Magnussen R, Servien E, Lustig S, Neyret P. Equivalent results of medial and lateral parapatellar approach for total knee arthroplasty in mild valgus deformities. Int Orthop 2015; 40:945-51. [PMID: 26156728 DOI: 10.1007/s00264-015-2893-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Accepted: 06/14/2015] [Indexed: 01/29/2023]
Abstract
PURPOSE When performing total knee arthroplasty (TKA) in valgus knee deformities, a medial or lateral parapatellar approach can be performed, but the lateral approach is often considered technically more difficult. The purpose of this study was to compare intra-operative, early clinical and radiological outcomes of medial and lateral parapatellar approaches for TKA in the setting of moderate knee valgus (<10°). METHODS We prospectively analysed 424 knees with pre-operative valgus deformity between 3° and 10° that underwent TKA over an 18-year period; 109 were treated with a medial approach and 315 with a lateral approach. Intra- and post-operative outcomes and complication rates after a minimum follow-up of one year were compared. RESULTS Tourniquet (p = 0.25) and surgical (p = 0.62) time were similar between groups. The popliteus tendon was released more frequently in the medial-approach group (p = 0.04), while the iliotibial band was released more frequently in the lateral-approach group (p < 0.001). A tibial tuberosity osteotomy was performed more frequently in the lateral- than medial-approach group (p = 0.003). No significant differences in limb alignment (p = 0.78), or Knee Society Score (KSS) knee (p = 0.32) and function (p = 0.47) results were noted based on surgical approach, and complication rates were similar between groups (p = 0.53). CONCLUSIONS Lateral parapatellar approach is a safe and effective surgical technique for performing TKA in moderately valgus knees. These equivalent early results are encouraging for systematic use of the lateral approach in moderately valgus knees.
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Affiliation(s)
- Stanislas Gunst
- Albert Trillat Center, Groupement Hospitalier Nord, Université de Lyon, Lyon, France.
| | - Vincent Villa
- Albert Trillat Center, Groupement Hospitalier Nord, Université de Lyon, Lyon, France
| | - Robert Magnussen
- Department of Orthopaedic Surgery, The Ohio State University Medical Center, Columbus, OH, USA
| | - Elvire Servien
- Albert Trillat Center, Groupement Hospitalier Nord, Université de Lyon, Lyon, France
| | - Sebastien Lustig
- Albert Trillat Center, Groupement Hospitalier Nord, Université de Lyon, Lyon, France
| | - Philippe Neyret
- Albert Trillat Center, Groupement Hospitalier Nord, Université de Lyon, Lyon, France
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Abstract
ABSTRACTTin dioxide (SnO2) coated glass is the commonly used substrate for thin film solar cells based on CdTe absorbers. We have investigated the properties of the CdS/SnO2 interface by X-ray and ultraviolet photoelectron spectroscopy. SnO2 coated glass substrates as used for solar cell preparation were cleaned by different procedures such as derinsing, sputtering, heating and annealing in oxygen atmosphere. Different surface properties with a strongly dependent number of defects in the SnO2 band gap are identified. CdS films were deposited stepwise by thermal evaporation to determine the electronic interface properties for different surface preparation conditions. Comparative barrier heights at the CdSSnO2 contact are found for most surface pretreatments. The Fermi level position in these cases is situated in the SnO2 band gap. A different interface behaviour is determined for sputter cleaned SnO2 surfaces, which is attributed to the formation of oxygen vacancies during sputtering and subsequent formation of an interfacial SnOxSy compound.
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Gunst S, Weinbruch S, Wentzel M, Ortner HM, Skogstad A, Hetland S, Thomassen Y. Chemical composition of individual aerosol particles in workplace air during production of manganese alloys. J Environ Monit 2000; 2:65-71. [PMID: 11256645 DOI: 10.1039/a908329d] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aerosol particle samples were collected at ELKEM ASA ferromanganese (FeMn) and silicomanganese (SiMn) smelters at Porsgrunn, Norway, during different production steps: raw material mixing, welding of protective steel casings, tapping of FeMn and slag, crane operation moving the ladles with molten metal, operation of the Metal Oxygen Refinement (MOR) reactor and casting of SiMn. Aerosol fractions were assessed for the analysis of the bulk elemental composition as well as for individual particle analysis. The bulk elemental composition was determined by inductively coupled plasma atomic emission spectrometry. For individual particle analysis, an electron microprobe was used in combination with wavelength-dispersive techniques. Most particles show a complex composition and cannot be attributed to a single phase. Therefore, the particles were divided into six groups according to their chemical composition: Group I, particles containing mainly metallic Fe and/or Mn; Group II, slag particles containing mainly Fe and/or Mn oxides; Group III, slag particles consisting predominantly of oxidized flux components such as Si, Al, Mg, Ca, Na and K; Group IV, particles consisting mainly of carbon; Group V, mixtures of particles from Groups II, III and IV; Group VI, mixtures of particles from Groups II and III. In raw material mixing, particles originating from the Mn ores were mostly found. In the welding of steel casings, most particles were assigned to Group II, Mn and Fe oxides. During the tapping of slag and metal, mostly slag particles from Group III were found (oxides of the flux components). During movement of the ladles, most particles came from Group II. At the MOR reactor, most of the particles belonged to the slag phase consisting of the flux components (Group III). The particles collected during the casting of SiMn were mainly attributed to the slag phase (Groups III and V). Due to the compositional complexity of the particles, toxicological investigations on the kinetics of pure compounds may not be easily associated with the results of this study.
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Affiliation(s)
- S Gunst
- Material Science Department, Darmstadt University of Technology, Germany
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