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Pratobevera A, Seil R, Menetrey J. Joint line and knee osteotomy. EFORT Open Rev 2024; 9:375-386. [PMID: 38726996 PMCID: PMC11099584 DOI: 10.1530/eor-24-0037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/12/2024] Open
Abstract
This review explores the intricate relationship between knee osteotomy and frontal plane joint line orientation, emphasizing the dynamic nature of the joint line's influence on knee forces and kinematics. Consideration of coronal alignments, knee phenotypes, and associated angles (medial proximal tibial angle (MTPA), lateral distal femoral angle (LDFA), joint line convergence angle (JLCA)) becomes crucial in surgical planning to avoid joint line deformities. The double-level osteotomy is to be considered a valid option, especially for severe deformities; however, the target patient cannot be selected solely based on high predicted postoperative joint line obliquity (JLO) and MPTA.
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Affiliation(s)
- Andrea Pratobevera
- Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Brescia, Italy
| | - Romain Seil
- Department of Orthopaedic Surgery, Centre Hospitalier Luxembourg-Clinique d’Eich, Luxembourg, Luxembourg
- Luxembourg Institute of Research in Orthopaedics, Sports Medicine and Science (LIROMS), Luxembourg, Luxembourg
| | - Jacques Menetrey
- Centre de Medecine du Sport et de l’Exercice - Swiss Olympic Medical Center, Hirslanden Clinique La Colline, Geneva, Switzerland
- Orthopaedic Surgery Service, University Hospital of Geneva, Geneva, Switzerland
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Giambelluca L, Umbel B, Anastasio A, Kim B, DeOrio J, Easley M, Nunley JA. Outcomes After Total Ankle Arthroplasty in Patients Aged ≤50 Years at Midterm Follow-up. Foot Ankle Int 2024; 45:357-363. [PMID: 38281110 DOI: 10.1177/10711007231221995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2024]
Abstract
BACKGROUND Ankle arthritis differs from arthritis of the hip and knee in that 80% is posttraumatic and thus often occurs in a younger patient population. The literature supporting total ankle arthroplasty (TAA) in younger patients has increased over recent years and has bolstered the argument that in the short term, TAA in younger patients has successful outcomes that are comparable to older, lower-demand patients.The purpose of our study was to evaluate patient-reported outcomes (PROs) and implant survivorship at midterm after primary TAA in patients ≤ 50 years of age at the time of surgery. METHODS A retrospective chart review was conducted of patients ≤ 50 years of age who underwent primary TAA at a single institution from 2000 to 2017. Patient demographics, outcome measures, and complications were recorded. All patients had a minimum clinical follow-up of 5 years. PRO measures were evaluated at preoperative, 1-year postoperative, and final follow-up visits. Paired t tests were performed to compare individual patient changes in PROs from preoperative. Implant survivorship was evaluated based on need for revision of either the tibial or talar component. The need for additional surgery related to the TAA was also evaluated. RESULTS A total of 58 patients were included. The average age at the time of the index surgery was 43.3 years (range 22-50 years). All patients had a minimum follow-up of 5 years with a mean follow-up of 8.8 years. A total of 11 patients required additional surgery related to their TAA. Six patients (10.3%) required bone grafting of peri-implant cysts, 3 patients (5.2 %) required gutter debridement, and 1 patient underwent complete revision of metal components. Mean visual analog scale, 36-item Short Form Health Survey, Short Musculoskeletal Function Assessment, and American Orthopaedic Foot & Ankle Society hindfoot scores significantly improved from preoperative to 1-year postoperative and final postoperative follow-up. CONCLUSION The patients aged ≤50 years treated with a TAA whom we have been able to observe for a minimum of 5 years showed generally maintained improvement in functional scores and thus far have had a relatively low rate of secondary surgeries.Level of Evidence:Level III, retrospective cohort study.
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Affiliation(s)
| | - Benjamin Umbel
- Department of Orthopaedic Surgery, Duke University, Durham, NC, USA
| | - Albert Anastasio
- Department of Orthopaedic Surgery, Duke University, Durham, NC, USA
| | | | - James DeOrio
- Department of Orthopaedic Surgery, Duke University, Durham, NC, USA
| | - Mark Easley
- Department of Orthopaedic Surgery, Duke University, Durham, NC, USA
| | - James A Nunley
- Orthopaedic Surgery, Duke University Medical Center, Durham, NC, USA
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Bergstein VE, Weinblatt AI, Taylor WL, Long WJ. Total knee arthroplasty survivorship and outcomes in young patients: a review of the literature and 40-year update to a longitudinal study. Arch Orthop Trauma Surg 2024:10.1007/s00402-024-05198-5. [PMID: 38436715 DOI: 10.1007/s00402-024-05198-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 12/31/2023] [Indexed: 03/05/2024]
Abstract
INTRODUCTION Growing numbers of younger patients are electing to undergo total knee arthroplasty (TKA) for end-stage osteoarthritis. The purpose of this study was to compare established literature regarding TKA outcomes in patients under age 55, to data from an ongoing longitudinal young patient cohort curated by our study group. Further, we aimed to provide a novel update on survivorship at 40 years post-TKA from our longitudinal cohort. METHODS A literature search was conducted using the electronic databases PubMed, Embase, and Cochrane Library, using terms related to TKA, patients under age 55, and osteoarthritis. Demographic and outcome data were extracted from all studies that met the inclusion criteria. Data were divided into the "longitudinal study (LS) group," and the "literature review (LR) group" based on the patient population of the study from which it came. RESULTS After screening, 10 studies met the inclusion criteria; 6 studies comprised the LR group, and 4 studies comprised the LS group. 2613 TKAs were performed among the LR group, and 114 TKAs were longitudinally followed in the LS group. The mean patient ages of the LR and LS groups were 46.1 and 51, respectively. Mean follow-up was 10.1 years for the LR group. Mean postoperative range of motion was 113.6° and 114.5° for the LR and LS groups, respectively. All-cause survivorship reported at 10 years or less ranged from 90.6% to 99.0%. The LS cohort studies reported survivorship ranges of 70.1-70.6% and 52.1-65.3% at 30 and 40 years, respectively. CONCLUSIONS Young TKA patients demonstrated improved functionality at each follow-up time point assessed. Survivorship decreased with increasing lengths of follow-up, ultimately ranging from 52.1-65.3% at 40 years post-TKA. The paucity of literature on long-term TKA outcomes in this patient population reinforces the necessity of further research on this topic.
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Affiliation(s)
- Victoria E Bergstein
- Department of Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, New York, NY, USA.
- Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Aaron I Weinblatt
- Department of Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, New York, NY, USA
| | - Walter L Taylor
- Department of Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, New York, NY, USA
| | - William J Long
- Department of Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, New York, NY, USA
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De Marziani L, Boffa A, Di Martino A, Andriolo L, Reale D, Bernasconi A, Corbo VR, de Caro F, Delcogliano M, di Laura Frattura G, Di Vico G, Manunta AF, Russo A, Filardo G. The reimbursement system can influence the treatment choice and favor joint replacement versus other less invasive solutions in patients affected by osteoarthritis. J Exp Orthop 2023; 10:146. [PMID: 38135778 PMCID: PMC10746689 DOI: 10.1186/s40634-023-00699-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 11/16/2023] [Indexed: 12/24/2023] Open
Abstract
PURPOSE The aim of this study was to assess how physicians perceive the role of the reimbursement system and its potential influence in affecting their treatment choice in the management of patients affected by osteoarthritis (OA). METHODS A survey was administered to 283 members of SIAGASCOT (Italian Society of Arthroscopy, Knee, Upper Limb, Sport, Cartilage and Orthopaedic Technologies), a National scientific orthopaedic society. The survey presented multiple choice questions on the access allowed by the current Diagnosis-Related Groups (DRG) system to all necessary options to treat patients affected by OA and on the influence toward prosthetic solutions versus other less invasive options. RESULTS Almost 70% of the participants consider that the current DRG system does not allow access to all necessary options to best treat patients affected by OA. More than half of the participants thought that the current DRG system favors the choice of prosthetic solutions (55%) and that it can contribute to the increase in prosthetic implantation at the expense of less invasive solutions (54%). The sub-analyses based on different age groups, professional roles, and places of work allowed to evaluate the response in each specific category, confirming the findings for all investigated aspects. CONCLUSIONS This survey documented that the majority of physicians consider that the reimbursement system can influence the treatment choice when managing OA patients. The current DRG system was perceived as unbalanced in favor of the choice of the prosthetic solution, which could contribute to the increase in prosthetic implantation at the expense of other less invasive options for OA management.
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Affiliation(s)
- Luca De Marziani
- Clinica Ortopedica e Traumatologica 2, IRCCS Istituto Ortopedico Rizzoli, Via Giulio Cesare Pupilli, Bologna, 1 - 40136, Italy
| | - Angelo Boffa
- Clinica Ortopedica e Traumatologica 2, IRCCS Istituto Ortopedico Rizzoli, Via Giulio Cesare Pupilli, Bologna, 1 - 40136, Italy.
| | - Alessandro Di Martino
- Clinica Ortopedica e Traumatologica 2, IRCCS Istituto Ortopedico Rizzoli, Via Giulio Cesare Pupilli, Bologna, 1 - 40136, Italy
| | - Luca Andriolo
- Clinica Ortopedica e Traumatologica 2, IRCCS Istituto Ortopedico Rizzoli, Via Giulio Cesare Pupilli, Bologna, 1 - 40136, Italy
| | - Davide Reale
- Ortopedia e Traumatologia, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Alessio Bernasconi
- Orthopaedics and Traumatology Unit, Department of Public Health, University Federico II of Naples Federico II, Naples, Italy
| | | | - Francesca de Caro
- Department of Orthopaedic Surgery, Istituto Di Cura Città Di Pavia, Pavia, Italy
| | - Marco Delcogliano
- Servizio di Ortopedia e Traumatologia dell'Ospedale Regionale di Bellinzona e Valli, Ente Ospedaliero Cantonale, Ticino, Switzerland
| | | | - Giovanni Di Vico
- Department of Orthopaedics and Trauma Surgery, Clinica San Michele, Maddaloni, Italy
| | | | | | - Giuseppe Filardo
- Applied and Translational Research (ATR) Center, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
- Service of Orthopaedics and Traumatology, Department of Surgery, EOC, Lugano, Switzerland
- Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland
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Fennelly JT, Papalexandris S, Pope J, Yorke J, Davidson JS, Santini AJ. Fifteen-year survival analysis of an oxidised zirconium total knee arthroplasty. Knee 2023; 45:128-136. [PMID: 37925803 DOI: 10.1016/j.knee.2023.10.012] [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: 05/06/2023] [Revised: 09/29/2023] [Accepted: 10/18/2023] [Indexed: 11/07/2023]
Abstract
BACKGROUND Early studies have found Oxidised Zirconium (OxZr-Nb) total knee arthroplasties to have a low incidence of failure in young, high demand patients. Theoretically this is because they are low friction and hard wearing. However, there are a paucity of studies reporting on the outcome of these implants beyond ten years. The purpose of our study was to present an in-depth 15-year survival analysis of a cemented OxZr-Nb knee arthroplasty. METHODS Data was collected prospectively and survival analysis undertaken with multiple strict end-points. Complication rates and patient reported outcomes were measured post-operatively. RESULTS Six hundred and seventeen knee arthroplasties were analysed. Forty-nine patients required a reoperation for various reasons. Aseptic tibial loosening was the most common cause of failure (32.7%), occurring, on average, 2.8 years after the primary procedure. There was only one oxidised zirconium femoral failure recorded. Cumulative survivorship for reoperation for any reason was 91.52% at 15-years. On average, WOMAC (Western Ontario and McMaster University) score improved by 21.2 points at one-year post-surgery, which is beyond the considered minimum clinically important difference. CONCLUSION This study presents a 15-year survival analysis of a cemented oxidised zirconium knee arthroplasty showing good survivorship over a range of analyses.
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Affiliation(s)
- Joseph Tr Fennelly
- Lower Limb Arthroplasty Unit, Liverpool University Hospitals NHS Foundation Trust, L14 3LB, United Kingdom.
| | - Stylianos Papalexandris
- Lower Limb Arthroplasty Unit, Liverpool University Hospitals NHS Foundation Trust, L14 3LB, United Kingdom; Department of Occupational Therapy, University of Western Macedonia, 501 00, Greece.
| | - Jill Pope
- Lower Limb Arthroplasty Unit, Liverpool University Hospitals NHS Foundation Trust, L14 3LB, United Kingdom.
| | - Joanne Yorke
- Lower Limb Arthroplasty Unit, Liverpool University Hospitals NHS Foundation Trust, L14 3LB, United Kingdom.
| | - John S Davidson
- Lower Limb Arthroplasty Unit, Liverpool University Hospitals NHS Foundation Trust, L14 3LB, United Kingdom.
| | - Alasdair Ja Santini
- Lower Limb Arthroplasty Unit, Liverpool University Hospitals NHS Foundation Trust, L14 3LB, United Kingdom; Faculty of Health and Life Sciences, The University of Liverpool, L69 3BX, United Kingdom.
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Cheng R, Krell EC, Chiu YF, Stimac JD, Heyse TJ, Abdel MP, Figgie MP, Blevins JL. Survivorship and Clinical Outcomes of Primary Total Knee Arthroplasty Performed in Patients 35 Years of Age and Younger. J Arthroplasty 2023; 38:2316-2323.e1. [PMID: 37286054 DOI: 10.1016/j.arth.2023.05.068] [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: 12/13/2022] [Revised: 05/22/2023] [Accepted: 05/24/2023] [Indexed: 06/09/2023] Open
Abstract
BACKGROUND Total knee arthroplasties (TKAs) for patients aged ≤35 years are rare but necessary for patients who have diseases such as juvenile idiopathic arthritis, osteonecrosis, osteoarthritis, and rheumatoid arthritis. Few studies have examined the 10-year and 20-year survivorship and clinical outcomes of TKAs for young patients. METHODS A retrospective registry review identified 185 TKAs in 119 patients aged ≤ 35 years performed between 1985 and 2010 at a single institution. The primary outcome was implant survivorship free of revision. Patient-reported outcomes were assessed at 2 time points: 2011 to 2012 and 2018 to 2019. The average age was 26 years (range, 12 to 35). Mean follow-up was 17 years (range, 8 to 33). RESULTS Survivorship decreased from 84% (95% confidence interval [CI]: 79 to 90) at 5 years to 70% (95% CI: 64 to 77) at 10 years and to 37% (95% CI: 29 to 45) at 20 years. The most common reasons for revision were aseptic loosening (6%) and infection (4%). Risk factors for revision included increasing age at time of surgery (Hazards Ratio [HR] 1.3, P = .01) and use of constrained (HR 1.7, P = .05) or hinged prostheses (HR 4.3, P = .02). There were 86% of patients reporting that their surgery resulted in "a great improvement" or better. CONCLUSION Survivorship of TKAs in young patients is less favorable than expected. However, for the patients who responded to our surveys, TKA demonstrated substantial pain relief and improvement in function at 17-year follow-up. Revision risk increased with older age and higher levels of constraint.
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Affiliation(s)
- Ryan Cheng
- Department of Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, New York, New York
| | - Ethan C Krell
- Department of Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, New York, New York
| | - Yu-Fen Chiu
- Department of Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, New York, New York
| | - Jeffrey D Stimac
- Department of Orthopedic Surgery, Norton Healthcare, Louisville, Kentucky
| | - Thomas J Heyse
- Medical Faculty, Philipps-University of Marburg, Marburg, Germany; Red Cross Hospital, Frankfurt, Germany
| | - Matthew P Abdel
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota
| | - Mark P Figgie
- Department of Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, New York, New York
| | - Jason L Blevins
- Department of Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, New York, New York
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Mödinger Y, Anttila ED, Baker GM, Gross DC, Porporati AA. Magnetic Resonance Safety Evaluation of a Novel Alumina Matrix Composite Ceramic Knee and Image Artifact Comparison to a Metal Knee Implant of Analogous Design. Arthroplast Today 2023; 22:101170. [PMID: 37521740 PMCID: PMC10374871 DOI: 10.1016/j.artd.2023.101170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 06/08/2023] [Indexed: 08/01/2023] Open
Abstract
Background Image artifacts caused by metal knee implants in 1.5T and 3T magnetic resonance imaging (MRI) systems complicate imaging-based diagnosis of the peri-implant region after total knee arthroplasty. Alternatively, metal-free knee prostheses could effectively minimize MRI safety hazards and offer the potential for higher quality diagnostic images. Methods A novel knee arthroplasty device composed of BIOLOX delta, an alumina matrix composite (AMC) ceramic, was tested in a magnetic resonance (MR) environment. American Society for Testing and Materials test methods were used for evaluating magnetically induced displacement force, magnetically induced torque, radiofrequency-induced heating, and MR image artifact. Results Magnetically induced displacement force and magnetically induced torque results of the AMC ceramic knee indicated that these effects do not pose a known risk in a clinical MR environment, as assessed in a 3T magnetic field. Moreover, minimal radiofrequency-induced heating of the device was observed. In addition, the AMC ceramic knee demonstrated minimal MR image artifacts (7 mm) in comparison to a cobalt-chromium knee (88 mm). The extremely low magnetic susceptibility of AMC (2 ppm) underlines that it is a nonmetallic and nonmagnetic material well suited for the manufacturing of MR Safe orthopaedic implants. Conclusions The AMC ceramic knee is a novel metal-free total knee arthroplasty device that can be regarded as MR Safe, as suggested by the absence of hazards from the exposure of this implant to a MR environment. The AMC ceramic knee presents the advantage of being scanned with superior imaging results in 3T MRI systems compared to alternative metal implants on the market.
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Affiliation(s)
- Yvonne Mödinger
- Medical Products Division, CeramTec GmbH, Plochingen, Germany
| | | | | | | | - Alessandro A. Porporati
- Medical Products Division, CeramTec GmbH, Plochingen, Germany
- Department of Engineering and Architecture, University of Trieste, Trieste, Italy
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Pasqualini I, Emara AK, Rullan PJ, Pan X, Simmons HL, Molloy RM, Krebs VE, Piuzzi NS. Return to Sports and Return to Work After Total Knee Arthroplasty: A Systematic Review and Meta-Analysis. JBJS Rev 2023; 11:01874474-202307000-00008. [PMID: 37499045 DOI: 10.2106/jbjs.rvw.22.00250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
BACKGROUND Return to work (RTW) and sports (RTS) are critical gauges to improvement among patients after total knee arthroplasty (TKA). This study aimed to determine rates, timelines, and prognostic factors associated with RTW and RTS outcomes after primary TKA. METHODS A systematic review was conducted on MEDLINE, Embase, and CENTRAL databases, with 44 studies meeting inclusion/exclusion criteria. The risk of bias was assessed using the Risk of Bias in Nonrandomized Studies of Interventions tool. Meta-analysis and pooled analysis were conducted when possible with forest plots to summarize odds ratios and associated 95% confidence intervals (CIs). RESULTS The pooled RTW rate across all studies was 65% (95% CI, 51%-77%), with rates varying significantly from 10% to 98%. The mean time to RTW was of 12.9 weeks (range, 5-42). A time point analysis showed increasing RTW rates with a maximum rate at 1 year of 90%. Increased age was associated with lower RTW rates (p < 0.001). The RTS rate ranged from 36% to 100%, with a pooled rate of 82% (95% CI, 72%-89%). The mean time to RTS was 20.1 weeks (range, 16-24). A wide range of reported recurrence rates was observed among different sports (subgroup differences, p ≤ 0.001). The RTS ranged from 43% to 98%, with a pooled proportion of 76% (95% CI, 59%-87%, I2 = 91%) for low-intensity sports, and from 0% to 55% for high-intensity sports, with a pooled proportion of 35% (95% CI, 20-52, I2 = 70%). CONCLUSION Most patients successfully return to sports and work after TKA, with rates of RTW increasing to 90% after 1 year. Such outcomes are heavily influenced by nonmodifiable (e.g., age) and modifiable (e.g., intensity of sports/employment) factors. Generally, young adults and patients with low-demand jobs can be reinitiated earlier, albeit with increasing restrictions with rising intensity. Providers should screen patients for desire to RTW and/or RTS after surgery and provide appropriate recommendations as part of necessary preoperative education and postoperative care. LEVEL OF EVIDENCE Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
| | - Ahmed K Emara
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Pedro J Rullan
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Xuankang Pan
- Case Western Reserve University School of Medicine, Cleveland, Ohio
| | - Hannah L Simmons
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Robert M Molloy
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Viktor E Krebs
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Nicolas S Piuzzi
- Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, Ohio
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Golinelli D, Grassi A, Sanmarchi F, Tedesco D, Esposito F, Rosa S, Rucci P, Amabile M, Cosentino M, Bordini B, Fantini MP, Zaffagnini S. Identifying patient subgroups with different trends of patient-reported outcomes (PROMs) after elective knee arthroplasty. BMC Musculoskelet Disord 2023; 24:453. [PMID: 37270489 DOI: 10.1186/s12891-023-06373-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 03/25/2023] [Indexed: 06/05/2023] Open
Abstract
BACKGROUND Patient-reported outcome measures (PROMs) are increasingly being used to assess the effectiveness of elective total knee arthroplasty (TKA). However, little is known about how PROMs scores change over time in these patients. The aim of this study was to identify the trajectories of quality of life and joint functioning, and their associated demographic and clinical features in patients undergoing elective TKA. METHODS A prospective, cohort study was conducted, in which PROMs questionnaires (Euro Quality 5 Dimensions 3L, EQ-5D-3L, and Knee injury and Osteoarthritis Outcome Score Patient Satisfaction, KOOS-PS) were administered to patients at a single center undergoing elective TKA before surgery, and at 6 and 12 months after surgery. Latent class growth mixture models were used to analyze the patterns of change in PROMs scores over time. Multinomial logistic regression was used to investigate the association between patient characteristics and PROMs trajectories. RESULTS A total of 564 patients were included in the study. The analysis highlighted differential patterns of improvement after TKA. Three distinct PROMs trajectories were identified for each PROMs questionnaire, with one trajectory indicating the most favorable outcome. Female gender appears to be associated with a presentation to surgery with worse perceived quality of life and joint function than males, but also more rapid improvement after surgery. Having an ASA score greater than 3 is instead associated with a worse functional recovery after TKA. CONCLUSION The results suggest three main PROMs trajectories in patients undergoing elective TKA. Most patients reported improved quality of life and joint functioning at 6 months, which then stabilized. However, other subgroups showed more varied trajectories. Further research is needed to confirm these findings and to explore the potential clinical implications of these results.
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Affiliation(s)
- Davide Golinelli
- Department of Biomedical and Neuromotor Sciences (DIBINEM), Alma Mater Studiorum - University of Bologna, Via San Giacomo 12, Bologna, 40126, Italy
| | - Alberto Grassi
- IIa Clinica Ortopedica e Traumatologica, IRCCS Istituto Ortopedico Rizzoli, Via Pupilli 1, Bologna, 40136, Italy
| | - Francesco Sanmarchi
- Department of Biomedical and Neuromotor Sciences (DIBINEM), Alma Mater Studiorum - University of Bologna, Via San Giacomo 12, Bologna, 40126, Italy.
| | - Dario Tedesco
- Directorate-General Personal Care, Health and Welfare, Emilia-Romagna Region, Viale Aldo Moro, 21, Bologna, 40127, Italy
| | - Francesco Esposito
- Department of Biomedical and Neuromotor Sciences (DIBINEM), Alma Mater Studiorum - University of Bologna, Via San Giacomo 12, Bologna, 40126, Italy
| | - Simona Rosa
- Department of Biomedical and Neuromotor Sciences (DIBINEM), Alma Mater Studiorum - University of Bologna, Via San Giacomo 12, Bologna, 40126, Italy
| | - Paola Rucci
- Department of Biomedical and Neuromotor Sciences (DIBINEM), Alma Mater Studiorum - University of Bologna, Via San Giacomo 12, Bologna, 40126, Italy
| | - Marilina Amabile
- Laboratorio di Tecnologia Medica, IRCCS Istituto Ortopedico Rizzoli, Via Pupilli 1, Bologna, 40136, Italy
| | - Monica Cosentino
- Laboratorio di Tecnologia Medica, IRCCS Istituto Ortopedico Rizzoli, Via Pupilli 1, Bologna, 40136, Italy
| | - Barbara Bordini
- Laboratorio di Tecnologia Medica, IRCCS Istituto Ortopedico Rizzoli, Via Pupilli 1, Bologna, 40136, Italy
| | - Maria Pia Fantini
- Department of Biomedical and Neuromotor Sciences (DIBINEM), Alma Mater Studiorum - University of Bologna, Via San Giacomo 12, Bologna, 40126, Italy
| | - Stefano Zaffagnini
- IIa Clinica Ortopedica e Traumatologica, IRCCS Istituto Ortopedico Rizzoli, Via Pupilli 1, Bologna, 40136, Italy
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Gender related results in total knee arthroplasty: a 15-year evaluation of the Italian population. Arch Orthop Trauma Surg 2023; 143:1185-1192. [PMID: 34665302 DOI: 10.1007/s00402-021-04222-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 10/10/2021] [Indexed: 10/20/2022]
Abstract
INTRODUCTION This study aimed to estimate separately in women and men the number of Total knee arthroplasty (TKA) procedures performed in Italy from 2001 to 2016, exploring specific gender-related characteristics and trends. MATERIALS AND METHODS Data of this study were collected from the National Hospital Discharge Reports (NHDR) reported at the Italian Ministry of Health in the years between 2001 and 2016. The information included in this archive are the patient's sex, age, the year when the surgical procedure was performed and the length of the hospitalization. RESULTS Between the years 2001 and 2016, a total of 848,863 TKAs have been performed in Italy. TKAs in women passed from 20,719 in 2001 to 49,320 in 2016 showing an increase of 138%, while TKAs in men passed from 6631 in 2001 to 23,601 in 2016 showing an increase of 256%. From the age of 50 onwards, there was a prevalence of procedures in women, from 63.2% in the 50-54 group to 85.7% in the 100 + group. Conversely, under the age of 50, there was a higher percentage of surgeries performed in males, 57.1% on a total of 16,434 TKA surgeries carried out in this age group. CONCLUSIONS This study showed that TKA is growing and heavily affecting the female population (70.6% of all TKAs) between 2001 and 2016. However, under 50 years old there was a higher percentage of surgeries performed in males (57.1%). The average number of days of hospitalization in females was higher than in males.
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Outcomes of Plug Osteochondral Allograft Transplantation With or Without Concomitant Osteotomy for Cartilage Defects in the Knee: Minimum 2-year Follow-up. J Am Acad Orthop Surg 2023; 31:e73-e81. [PMID: 36580053 DOI: 10.5435/jaaos-d-22-00109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 08/05/2022] [Indexed: 12/30/2022] Open
Abstract
INTRODUCTION Isolated osteochondral defects of the knee can cause notable pain and disability. Osteochondral allograft (OCA) transplantation using trephined plug grafts is a highly effective, often curative, treatment option. In knees with malalignment into the transplanted compartment, osteotomy can be done concurrently. This study investigates early-to-midterm survivorship, as well as clinical and radiographic outcomes, of plug OCAs with and without concomitant osteotomy in the knee. METHODS Plug OCA was done on active, young to middle-aged patients with osteochondral defects ≤4 cm diameter. Prospectively collected data for 102 patients who underwent plug OCA between 2004 and 2020 were reviewed. Survivorship according to Kaplan-Meier analysis was the primary outcome. Failure was defined as conversion to total knee arthroplasty or repeat allograft. Clinical and radiographic outcomes were evaluated using the modified Hospital for Special Surgery (mHSS) score and Kellgren-Lawrence grading. RESULTS Eighty-six patients with a mean age of 29 ± 9.7 years (15 to 54) and a mean follow-up of 6.8 ± 3.7 years (2 to 15.9) were studied. Concomitant realignment osteotomy was done in 66 patients (76.7%). Graft survivorship was 100%, 93.8% (95% confidence interval 90.8% to 96.8%), and 89.7% (95% confidence interval 85.6% to 93.8%) at 2, 5, and 10 to 15 years, respectively. Six grafts (7.0%) required knee arthroplasty at a mean of 4.6 ± 1.8 years (2.2 to 7.1). Most common reasons for revision surgeries with graft retention included implant removal (11.6%), débridement (8.1%), and repeat osteotomy (5.8%). The mean mHSS score of 90.8 ± 10.4 (51 to 100) at the final follow-up was significantly higher than the preoperative value of 72.5 ± 12.1 (36 to 90) (P < 0.001). Subgroup analyses revealed a markedly greater risk of failure in grafts with a diameter of 30 mm or larger. DISCUSSION Plug OCA with or without concurrent realignment osteotomy resulted in an excellent graft survival of 93% at a mean of 6.8 years, with reliable functional improvement demonstrated by notable improvements in mHSS knee scores.
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Ayati Firoozabadi M, Rezaee H, Ziaee O, Bagheri N, Mortazavi SMJ. Treatment of Simultaneous Femoral Supracondylar Nonunion and Tibial Plateau Malunion along with Stiff Knee in a Young Patient: A Case Report. THE ARCHIVES OF BONE AND JOINT SURGERY 2023; 11:783-786. [PMID: 38146522 PMCID: PMC10748815 DOI: 10.22038/abjs.2023.74326.3440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 09/27/2023] [Indexed: 12/27/2023]
Abstract
A 41-year-old man underwent Total Knee Arthroplasty with NexGen Legacy Constrained Condylar Knee (LCCK) system to treat his nonunion of distal femur, stiff knee, and malunion of tibia plateau. The treatment involved femoral and tibial stems and PS polyethylene. As a result, his knee range of motion improved, and he no longer experienced pain. After two years, he resumed work without any signs of loosening or stiffness.
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Affiliation(s)
| | - Hesan Rezaee
- Joint reconstruction research center, Tehran University of medical science, Tehran, Iran
| | - Omid Ziaee
- Joint reconstruction research center, Tehran University of medical science, Tehran, Iran
| | - Nima Bagheri
- Joint reconstruction research center, Tehran University of medical science, Tehran, Iran
| | - SM Javad Mortazavi
- Joint reconstruction research center, Tehran University of medical science, Tehran, Iran
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Sheridan GA, Cassidy RS, McKee C, Hughes I, Hill JC, Beverland DE. Survivorship of 500 Cementless Total Knee Arthroplasties in Patients Under 55 Years of Age. J Arthroplasty 2022; 38:820-823. [PMID: 36309144 DOI: 10.1016/j.arth.2022.10.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 10/19/2022] [Accepted: 10/19/2022] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND With respect to survivorship following total knee arthroplasty (TKA), joint registries consistently demonstrate higher revision rates for both genders in those aged less than 55 years. The present study analyzed the survivorship of 500 cementless TKAs performed in this age group in a high-volume primary joint unit where cementless TKA has traditionally been used for the majority of patients. METHODS This was a retrospective review of 500 consecutive TKAs performed in patients aged less than 55 years between March 1994 and April 2017. The primary outcome measures for the study were survivorship and all-cause revisions. Secondary outcome measures included nonrevision procedures, clinical, functional, and radiological outcomes. RESULTS An all-cause survival rate of 98.4% and an aseptic survival rate of 99.2% at a median time of 10.7 years (interquartile range 7.3-14.9, range 0.2-27.7) were found. Four patents were revised for infection, 2 for stiffness, 1 for aseptic loosening of the tibial component, and 1 for a patella that was resurfaced for anterior knee pain. Thirty four patients (6.8%) had a nonrevision procedure with manipulation under anesthetic accounting for 27. On a multivariate analysis, preoperative range of motion and female gender were negatively associated with postoperative range of motion (P < .001 and P = .003, respectively). Sixty seven patients (17.3%) had radioluscent lines and on a multivariate analysis, there were no significant predictors of radiolucent lines. CONCLUSION Cementless TKA in the young patient can achieve excellent clinical and functional outcomes. At a median of 10.7 years, aseptic revision rates are exceptionally low at 0.8% for the entire cohort.
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Affiliation(s)
- Gerard A Sheridan
- Primary Joint Unit, Musgrave Park Hospital, Belfast, Northern Ireland, United Kingdom
| | - Roslyn S Cassidy
- Primary Joint Unit, Musgrave Park Hospital, Belfast, Northern Ireland, United Kingdom
| | - Christopher McKee
- Primary Joint Unit, Musgrave Park Hospital, Belfast, Northern Ireland, United Kingdom
| | - Ioan Hughes
- Primary Joint Unit, Musgrave Park Hospital, Belfast, Northern Ireland, United Kingdom
| | - Janet C Hill
- Primary Joint Unit, Musgrave Park Hospital, Belfast, Northern Ireland, United Kingdom
| | - David E Beverland
- Primary Joint Unit, Musgrave Park Hospital, Belfast, Northern Ireland, United Kingdom
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Ansari MJ, Rajendran RR, Mohanto S, Agarwal U, Panda K, Dhotre K, Manne R, Deepak A, Zafar A, Yasir M, Pramanik S. Poly( N-isopropylacrylamide)-Based Hydrogels for Biomedical Applications: A Review of the State-of-the-Art. Gels 2022; 8:454. [PMID: 35877539 PMCID: PMC9323937 DOI: 10.3390/gels8070454] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/08/2022] [Accepted: 07/08/2022] [Indexed: 12/21/2022] Open
Abstract
A prominent research topic in contemporary advanced functional materials science is the production of smart materials based on polymers that may independently adjust their physical and/or chemical characteristics when subjected to external stimuli. Smart hydrogels based on poly(N-isopropylacrylamide) (PNIPAM) demonstrate distinct thermoresponsive features close to a lower critical solution temperature (LCST) that enhance their capability in various biomedical applications such as drug delivery, tissue engineering, and wound dressings. Nevertheless, they have intrinsic shortcomings such as poor mechanical properties, limited loading capacity of actives, and poor biodegradability. Formulation of PNIPAM with diverse functional constituents to develop hydrogel composites is an efficient scheme to overcome these defects, which can significantly help for practicable application. This review reports on the latest developments in functional PNIPAM-based smart hydrogels for various biomedical applications. The first section describes the properties of PNIPAM-based hydrogels, followed by potential applications in diverse fields. Ultimately, this review summarizes the challenges and opportunities in this emerging area of research and development concerning this fascinating polymer-based system deep-rooted in chemistry and material science.
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Affiliation(s)
- Mohammad Javed Ansari
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Rahul R. Rajendran
- Department of Mechanical Engineering and Mechanics, Lehigh University, 19 Memorial Drive West, Bethlehem, PA 18015, USA;
| | - Sourav Mohanto
- Department of Pharmaceutics, Yenepoya Pharmacy College and Research Centre, Yenepoya (Deemed to be University), Mangalore 575018, Karnataka, India;
| | - Unnati Agarwal
- School of Bioengineering and Biosciences, Lovely Professional University, Jalandhar-Delhi, Grand Trunk Road, Phagwara 144001, Punjab, India;
| | - Kingshuk Panda
- Department of Applied Microbiology, Vellore Institute of Technology, School of Bioscience and Technology, Vellore 632014, Tamilnadu, India;
| | - Kishore Dhotre
- I.C.M.R.—National Institute of Virology, Pune 411021, Maharashtra, India;
| | - Ravi Manne
- Chemtex Environmental Lab, Quality Control and Assurance Department, 3082 25th Street, Port Arthur, TX 77642, USA;
| | - A. Deepak
- Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai 600124, Tamil Nadu, India;
| | - Ameeduzzafar Zafar
- Department of Pharmaceutics, College of Pharmacy, Jouf University, Sakaka 72341, Saudi Arabia; or
| | - Mohd Yasir
- Department of Pharmacy, College of Health Science, Arsi University, Asella 396, Ethiopia;
| | - Sheersha Pramanik
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
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Elder S, Roberson JG, Warren J, Lawson R, Young D, Stokes S, Ross MK. Evaluation of Electrospun PCL-PLGA for Sustained Delivery of Kartogenin. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27123739. [PMID: 35744864 PMCID: PMC9229984 DOI: 10.3390/molecules27123739] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/06/2022] [Accepted: 06/08/2022] [Indexed: 01/01/2023]
Abstract
In this study, kartogenin was incorporated into an electrospun blend of polycaprolactone and poly(lactic-co-glycolic acid) (1:1) to determine the feasibility of this system for sustained drug delivery. Kartogenin is a small-molecule drug that could enhance the outcome of microfracture, a cartilage restoration procedure, by selectively stimulating chondrogenic differentiation of endogenous bone marrow mesenchymal stem cells. Experimental results showed that kartogenin did not affect the electrospinnability of the polymer blend, and it had negligible effects on fiber morphology and scaffold mechanical properties. The loading efficiency of kartogenin into electrospun membranes was nearly 100%, and no evidence of chemical reaction between kartogenin and the polymers was detected by Fourier transform infrared spectroscopy. Analysis of the released drug using high-performance liquid chromatography-photodiode array detection indicated an abundance of kartogenin and only a small amount of its major hydrolysis product. Kartogenin displayed a typical biphasic release profile, with approximately 30% being released within 24 h followed by a much slower, constant rate of release up to 28 days. Although additional development is needed to tune the release kinetics and address issues common to electrospun scaffolds (e.g., high fiber density), the results of this study demonstrated that a scaffold electrospun from biodegradable synthetic polymers is a suitable kartogenin delivery vehicle.
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Affiliation(s)
- Steven Elder
- Department of Agricultural & Biological Engineering, James Worth Bagley College of Engineering, Mississippi State University, Starkville, MS 39762, USA; (J.G.R.); (J.W.)
- Correspondence: ; Tel.: +1-662-325-9107
| | - John Graham Roberson
- Department of Agricultural & Biological Engineering, James Worth Bagley College of Engineering, Mississippi State University, Starkville, MS 39762, USA; (J.G.R.); (J.W.)
| | - James Warren
- Department of Agricultural & Biological Engineering, James Worth Bagley College of Engineering, Mississippi State University, Starkville, MS 39762, USA; (J.G.R.); (J.W.)
| | - Robert Lawson
- Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, College of Agriculture & Life Sciences, Mississippi State University, Starkville, MS 39762, USA;
| | - Daniel Young
- Department of Comparative Biomedical Sciences, College of Veterinary Medicine, Mississippi State University, Starkville, MS 39762, USA; (D.Y.); (M.K.R.)
| | - Sean Stokes
- Department of Chemistry, College of Arts and Sciences, Mississippi State University, Starkville, MS 39762, USA;
| | - Matthew K. Ross
- Department of Comparative Biomedical Sciences, College of Veterinary Medicine, Mississippi State University, Starkville, MS 39762, USA; (D.Y.); (M.K.R.)
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Paul RW, Osman A, Clements A, Tjoumakaris FP, Lonner JH, Freedman KB. What Are the All-Cause Survivorship Rates and Functional Outcomes in Patients Younger Than 55 Years Undergoing Primary Knee Arthroplasty? A Systematic Review. Clin Orthop Relat Res 2022; 480:507-522. [PMID: 34846307 PMCID: PMC8846274 DOI: 10.1097/corr.0000000000002023] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 10/04/2021] [Indexed: 01/31/2023]
Abstract
BACKGROUND Approximately one-fourth of TKAs will be performed in patients 55 years or younger within the next decade. Postoperative outcomes for younger patients who had a knee arthroplasty were systematically reviewed in 2011; however, numerous studies evaluating young patients who had both a TKA and unicompartmental knee arthroplasty (UKA) have been reported in the past decade. Therefore, to better counsel this growing population of young patients undergoing knee arthroplasty, an updated understanding of their expected postoperative outcomes is warranted. QUESTIONS/PURPOSES In this systematic review, we evaluated (1) all-cause survivorship, (2) reasons for revision, (3) patient-reported outcomes, and (4) return to physical activity and sport in patients 55 years or younger undergoing primary TKA or UKA. METHODS A comprehensive search of PubMed, Medline, SportDiscus, and CINAHL was performed to identify all original studies evaluating outcomes after primary knee arthroplasty for young patients (55 years of age or younger) from inception until March 2021. The following keywords were used: knee, arthroplasty, replacement, pain, function, revision, survivorship, sport, physical activity, and return to play. Only original research studies that were related to knee arthroplasty and reported postoperative outcomes with a minimum 1-year follow-up for patients 55 years or younger were included. Unpublished materials, publications not available in English, and studies with a primary diagnosis of rheumatoid arthritis were excluded. The Methodological Index for Non-Randomized Studies (MINORS) score was used to evaluate the study quality of case series and comparative studies, while the Cochrane Risk of Bias tool and the Jadad scale were used for randomized studies. The primary outcomes of interest for this study were all-cause survivorship rate, reasons for all-cause revision, Knee Society and Knee Society Function scores (minimum clinically important difference [MCID] 7.2 and 9.7, respectively), WOMAC scores (MCID 10), Tegner scores (no reported MCID for knee arthroplasty), and return to physical activity or sport. Knee Society and Knee Society Function scores range from 0 to 100, with scores from 85 to 100 considered excellent and below 60 representing poor outcomes. All-cause survivorship rate and reasons for revision were both reported in 17 total studies. Knee Society scores were presented in 19 and Knee Society Function scores were reported in 18 included studies. WOMAC scores and Tegner scores were each found in four included studies, and return to physical activity and return to sport analyses were performed in seven studies. Overall, 21 TKA studies and five UKA studies were included in this analysis, featuring 3095 TKA knees and 482 UKA knees. RESULTS Kaplan-Meier estimates of all-cause survivorship ranged from 90% to 98% at 5 to 10 years of follow-up after TKA and from 84% to 99% (95% CI 93% to 98%) at 10 years to 20 years post-TKA. All-cause UKA survivorship was 90% at 10 years and 75% at 19 years in the largest Kaplan-Meier estimate of survivorship for patients younger than 55 who underwent UKA. Common reasons for revision in TKA patients were polyethylene wear/loosening, aseptic tibial loosening, and infection, and in UKA patients the common reasons for revision were knee pain, aseptic loosening, progression of knee osteoarthritis, and polyethylene wear/loosening. Knee Society scores ranged from 85 to 98 for 5-year to 10-year follow-up and ranged from 86 to 97 at 10-year to 20-year follow-up in TKA patients. Knee Society Function scores ranged from 70 to 95 for 5-year to 10-year follow-up and ranged from 79 to 86 at 10-year to 20-year follow-up. Return to physical activity and sport was reported variably; however, most patients younger than 55 have improved physical activity levels after knee arthroplasty relative to preoperative levels. CONCLUSION Although all-cause survivorship rates were frequently above 90% and patient-reported outcome scores were generally in the good to excellent range, several studies reported long-term survivorship rates from 70% to 85% and fair patient-reported outcome scores, which must be factored into any preoperative counseling with patients. We could not control for surgeon volume in this report, and prior research suggests that increasing volume is associated with less frequent complications; in addition, the studies we included were variably affected by selection bias, transfer bias, and assessment bias, which makes it likely that the findings of our review represent best-case estimates. To limit the frequency of revision in patients younger than 55 years undergoing TKA, clinicians should be cautious of polyethylene wear/loosening, aseptic tibial loosening, and infection, while knee pain and progression of knee osteoarthritis are also common reasons for revision in patients younger than 55 undergoing UKA. Further research should isolate younger knee arthroplasty patients and evaluate postoperative activity levels while accounting for preoperative physical activity and sport participation. LEVEL OF EVIDENCE Level IV, therapeutic study.
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Affiliation(s)
- Ryan W. Paul
- Rothman Orthopaedic Institute, Philadelphia, PA, USA
| | - Alim Osman
- Eastern Virginia Medical School, Norfolk, VA, USA
| | - Ari Clements
- Sidney Kimmel Medical College, Philadelphia, PA, USA
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Uivaraseanu B, Vesa CM, Tit DM, Maghiar O, Maghiar TA, Hozan C, Nechifor AC, Behl T, Andronie-Cioara FL, Patrascu JM, Bungau S. Highlighting the advantages and benefits of cementless total knee arthroplasty (Review). Exp Ther Med 2022; 23:58. [PMID: 34917184 PMCID: PMC8630446 DOI: 10.3892/etm.2021.10980] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 10/05/2021] [Indexed: 12/22/2022] Open
Abstract
In the field of orthopedic surgery, cemented total knee arthroplasty (TKA) is considered to be one of the gold standards. However, there are categories of patients (i.e., obese and morbidly obese patients, younger than 65 years old) among whom cemented TKA has however a high failure rate. Moreover, the frequency of using uncemented TKA is increasing due to the potential benefits of long-term biological fixation, being an innovative field that addresses a new generation orthopedic surgical treatment which is more suitable for young patients who have good bone quality (good to very good, in terms of density). The survival rates and functional results of the latest generation of cementless TKAs may be similar to functional results and survival rates of cemented prosthesis. In conclusion, this review-type article can be considered a powerful database, extremely informative, dense, and focused on the topic mentioned above, in the interest of all medical professionals and all interested individuals.
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Affiliation(s)
- Bogdan Uivaraseanu
- Department of Surgical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410081 Oradea, Romania
| | - Cosmin Mihai Vesa
- Department of Preclinical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410081 Oradea, Romania
| | - Delia Mirela Tit
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 410028 Oradea, Romania
| | - Octavian Maghiar
- Department of Surgical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410081 Oradea, Romania
| | - Teodor Andrei Maghiar
- Department of Surgical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410081 Oradea, Romania
| | - Calin Hozan
- Department of Surgical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410081 Oradea, Romania
| | - Aurelia Cristina Nechifor
- Analytical Chemistry and Environmental Engineering Department, Polytechnic University of Bucharest, 011061 Bucharest, Romania
| | - Tapan Behl
- Department of Pharmacology, Chitkara College of Pharmacy, Chitkara University, Chandigarh, Punjab 140401, India
| | - Felicia Liana Andronie-Cioara
- Department of Psycho-Neuroscience and Recovery, Faculty of Medicine and Pharmacy, University of Oradea, 410081 Oradea, Romania
| | - Jenel Marian Patrascu
- Department of Orthopedics, Urology and Medical Imaging, Faculty of Medicine, ‘Victor Babes’ University of Medicine and Pharmacy, 300041 Timisoara, Romania
| | - Simona Bungau
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 410028 Oradea, Romania
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Optimal Conformity Design of Tibial Insert Component Based on ISO Standard Wear Test Using Finite Element Analysis and Surrogate Model. Symmetry (Basel) 2021. [DOI: 10.3390/sym13122377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Total knee replacement is a standard surgical treatment used to treat osteoarthritis in the knee. The implant is complicated, requiring expensive designs and testing as well as a surgical intervention. This research proposes a technique concerning the optimal conformity design of the symmetric polyethylene tibial insert component for fixed-bearing total knee arthroplasty. The Latin Hypercube Sampling (LHS) design of the experiment was used to create 30 cases of the varied tibial insert conformity that influenced the total knee replacement wear volume. The combination of finite element analysis and a surrogate model was performed to predict wear volume according to the standard of ISO-14243:2014 wear test and to determine the optimal conformity. In the first step, the results could predict wear volume between 5.50 to 72.92 mm3/106 cycle. The Kriging method of a surrogate model has then created the increased design based on the efficient global optimization (EGO) method with improving data 10 design points. The result revealed that the optimum design of tibial insert conformity in a coronal and sagittal plane was 0.70 and 0.59, respectively, with a minimizing wear volume of 3.07 mm3/106 cycle. The verification results revealed that the area surface scrape and wear volume are similar to those predicted by the experiment. The wear behavior on the tibial insert surface was asymmetry of both sides. From this study it can be concluded that the optimal conformity design of the tibial insert component can be by using a finite element and surrogate model combined with the design of conformity to the minimized wear volume.
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Li Z, Sun X, Li W, Zhang M. Tranexamic Acid versus Epsilon-Aminocaproic Acid in Total Knee Arthroplasty: A Meta-Analysis. JOURNAL OF HEALTHCARE ENGINEERING 2021; 2021:1758066. [PMID: 34777729 PMCID: PMC8580677 DOI: 10.1155/2021/1758066] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 10/20/2021] [Indexed: 11/30/2022]
Abstract
Objective At present, the effect of tranexamic acid (TXA) and epsilon-aminocaproic acid (EACA) on total knee arthroplasty (TKA) remains controversial. Therefore, the aim of this meta-analysis is to compare the differences between the effects of TXA and EACA in TKA. Methods We used electronic databases, including PubMed, Embase, MEDLINE, Ovid, ScienceDirect, Cochran Library, Google Scholar, clinical trial, and Chinese related databases, for literature search to find any effect of TXA and EACA in TKA. The differences between groups were compared by odds ratio (OR), weighted mean difference (WMD), and 95% confidence interval (CI). A total of four studies, including 3 randomized controlled trials (RCT) and 1 cohort study, were involved in this meta-analysis, involving 1836 participants. Among these participants, 816 belonged to the TXA group and 1020 belonged to the EACA group. Results Meta-analysis indicated no difference in surgery time (WMD = 0.01, 95% CI -0.35 to 0.36), total amount of blood loss (WMD = 0.14, 95% CI -0.09 to 0.37), transfusion rate (OR = 0.74, 95% CI 0.20 to 2.78), transfusion units per patient (SMD = -0.15, 95% CI -0.54 to 0.25), complications (OR = 0.75, 95% CI 0.37 to 1.55), and length of stay (SMD = -0.01, 95% CI -0.11 to 0.08). Conclusions Our results suggest that the effect of TXA is not superior to EACA in TKA. However, this conclusion still needs to be further confirmed by multicenter and large-sample clinical trials.
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Affiliation(s)
- Zhihui Li
- Department of Trauma Center, Huaihe Hospital of Henan University, Kaifeng 475000, China
| | - Xiaotong Sun
- Department of Trauma Orthopedics, Zaozhuang Municipal Hospital, No. 41 Longtou Road, Zaozhuang City, Shandong Province, China
| | - Weihua Li
- Department of Trauma Center, Huaihe Hospital of Henan University, Kaifeng 475000, China
| | - Minghui Zhang
- Department of Trauma Center, Huaihe Hospital of Henan University, Kaifeng 475000, China
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Rajgopal A, Kumar S, Aggarwal K. Evaluating Long Term Outcomes and Survivorship of Cruciate Retaining and Sacrificing Knee Replacements Done for Degenerative Arthritis in Patients Under 55 Years. Indian J Orthop 2021; 55:1180-1185. [PMID: 34824718 PMCID: PMC8586379 DOI: 10.1007/s43465-021-00460-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 07/13/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND Total Knee Arthroplasty (TKA) is the gold standard of treatment for end stage arthritis not responding to conservative treatment. With a recent increase in the younger population presenting with osteoarthritis (OA) we undertook this study to evaluate long-term outcomes and survivorship of TKA in this cohort. MATERIALS AND METHODS Our study cohort included 328 patients, < 55 years, with OA, who underwent TKA using Cruciate Retaining (CR), and Posterior Stabilized (PS) implants with a minimum follow up of 15 years. Revision surgery was the end point of our analysis and Kaplan-Meier evaluation of survivorship was measured. Knee Society Scores (KSS) and Range of Motion (ROM) were assessed to evaluate outcomes. RESULTS Survivorship of the CR and PS implants with revision as end point, for aseptic loosening was 97.3% and 96%, and revision for all causes was 89.7% and 86.1%, respectively, at 15 years. The outcomes of CR implants were better than the PS cohort in terms of function and survivorship. CONCLUSION Long term survivorship and outcome analysis of TKA in patients < 55 years showed good results with excellent survivorship, with both CR and PS implants. The CR cohort demonstrated better long-term survivorship, though the difference was not statistically significant. Deep infection and aseptic loosening were the commonest causes for failure.
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Affiliation(s)
- Ashok Rajgopal
- Institute of Musculoskeletal Disorders and Orthopaedics, Medanta-The Medicity Hospital Gurugram, Haryana, 122001 India
| | - Sumit Kumar
- Institute of Musculoskeletal Disorders and Orthopaedics, Medanta-The Medicity Hospital Gurugram, Haryana, 122001 India
| | - Kalpana Aggarwal
- Institute of Musculoskeletal Disorders and Orthopaedics, Medanta-The Medicity Hospital Gurugram, Haryana, 122001 India
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Uivaraseanu B, Bungau S, Tit DM, Behl T, Maghiar TA, Maghiar O, Pantis C, Zaha DC, Patrascu JM. Orthopedic surgery approach with uncemented metallic prosthesis in knee osteoarthritis increases the quality of life of young patients. Exp Ther Med 2021; 21:541. [PMID: 33815614 DOI: 10.3892/etm.2021.9973] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 02/11/2021] [Indexed: 12/22/2022] Open
Abstract
Osteoarthritis is mainly located in the knee area. It is an important concern related to the population health, determined by the influence on the quality of life of patients. Total knee arthroplasty (TKA) with uncemented fixation is among the most encountered procedures performed in patients of a younger age. The present study investigated the response of patients (quality of life, mobility and pain management) with titanium/hydroxyapatite-coated implants with polyethylene inserts. A total of 57 patients with knee arthroplasty were studied with an average age of 54.1±4.9 years and 57.8% were females. The present study focused on the following aspects: The components of such a prosthesis and the way they contribute to a physiological fixation/recovery; how the implant surgery is performed; the clinical and demographic characteristics of the patients; postoperative pain assessment in different types of movement; the management of the movement capacity 1 year after the surgery; and complications that may occur. One year after the surgery, these patients reported pain release, considerably favorable results in every-day activities, and good mobility (capable of using the car, rising from the bed or standing). Knowledge and accurate observation of the correct steps in performing this surgery and the role of the components of the prosthesis can lead to favorable therapeutic outcomes for patients with knee osteoarthritis.
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Affiliation(s)
- Bogdan Uivaraseanu
- Department of Surgical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410081 Oradea, Romania
| | - Simona Bungau
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 410028 Oradea, Romania
| | - Delia Mirela Tit
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 410028 Oradea, Romania
| | - Tapan Behl
- Department of Pharmacology, Chitkara College of Pharmacy, Chitkara University, 140401 Punjab, India
| | - Teodor Andrei Maghiar
- Department of Surgical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410081 Oradea, Romania
| | - Octavian Maghiar
- Department of Surgical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410081 Oradea, Romania
| | - Carmen Pantis
- Department of Surgical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410081 Oradea, Romania
| | - Dana Carmen Zaha
- Department of Preclinical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania
| | - Jenel M Patrascu
- Department of Orthopedics, Urology and Medical Imaging, Faculty of Medicine, University of Medicine and Pharmacy 'Victor Babes', 300041 Timisoara, Romania
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Yamashita A, Tsumaki N. Recent progress of animal transplantation studies for treating articular cartilage damage using pluripotent stem cells. Dev Growth Differ 2021; 63:72-81. [PMID: 33411345 DOI: 10.1111/dgd.12706] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 12/14/2020] [Accepted: 12/18/2020] [Indexed: 12/14/2022]
Abstract
Focal articular cartilage damage can eventually lead to the onset of osteoarthritis with degradation around healthy articular cartilage. Currently, there are no drugs available that effectively repair articular cartilage damage. Several surgical techniques exist and are expected to prevent progression to osteoarthritis, but they do not offer a long-term clinical solution. Recently, regenerative medicine approaches using human pluripotent stem cells (PSCs) have gained attention as new cell sources for therapeutic products. To translate PSCs to clinical application, appropriate cultures that produce large amounts of chondrocytes and hyaline cartilage are needed. So too are assays for the safety and efficacy of the cellular materials in preclinical studies including animal transplantation models. To confirm safety and efficacy, transplantation into the subcutaneous space and articular cartilage defects have been performed in animal models. All but one study we reviewed that transplanted PSC-derived cellular products into articular cartilage defects found safe and effective recovery. However, for most of those studies, the quality of the PSCs was not verified, and the evaluations were done with small animals over short observation periods. Large animals and longer observation times are preferred. We will discuss the recent progress and future direction of the animal transplantation studies for the treatment of focal articular cartilage damages using PSCs.
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Affiliation(s)
- Akihiro Yamashita
- Cell Induction and Regulation Field, Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
| | - Noriyuki Tsumaki
- Cell Induction and Regulation Field, Department of Clinical Application, Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan
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Patient-Reported Outcomes Following Total Knee Replacement in Patients <65 Years of Age-A Systematic Review and Meta-Analysis. J Clin Med 2020; 9:jcm9103150. [PMID: 33003394 PMCID: PMC7600907 DOI: 10.3390/jcm9103150] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 09/24/2020] [Accepted: 09/28/2020] [Indexed: 11/17/2022] Open
Abstract
An increasing number of total knee replacements (TKRs) are being performed in response to the growing burden of osteoarthritis. Patients <65 years of age represent the fastest growing group of TKR recipients and are expected to account for an increasing number of primary and revision procedures. Concerns have been raised about the outcomes that can be expected by this age demographic who are more active, physically demanding, and have longer life expectancies compared to older TKR recipients. This systematic review and meta-analysis evaluated the effectiveness of TKR for osteoarthritis in patients <65 years of age, compared to older individuals. A systematic search of Embase and Medline was conducted to identify studies which examined patient-reported outcomes measured using disease-specific and generic health-related quality of life instruments. Ten studies met our inclusion criteria and were included in this review. These studies comprised 1747 TKRs performed between 1977 and 2014. In the meta-analysis of two prospective studies (288 TKRs), patients <65 years of age were able to attain large and clinically meaningful improvements in pain, function, and quality of life. One of these studies (61 TKRs) suggested that patients <55 years of age attained a larger degree of improvement compared to older individuals. Results into the second postoperative decade were less certain, with some data suggesting a high prevalence of pain and patterns of functional decline. Further research is required to investigate longer-term outcomes following TKR for osteoarthritis in younger patients.
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Shardt N, Chen Z, Yuan SC, Wu K, Laouar L, Jomha NM, Elliott JAW. Using engineering models to shorten cryoprotectant loading time for the vitrification of articular cartilage. Cryobiology 2020; 92:180-188. [PMID: 31952947 DOI: 10.1016/j.cryobiol.2020.01.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 01/13/2020] [Indexed: 02/05/2023]
Abstract
Osteochondral allograft transplantation can treat full thickness cartilage and bone lesions in the knee and other joints, but the lack of widespread articular cartilage banking limits the quantity of cartilage available for size and contour matching. To address the limited availability of cartilage, vitrification can be used to store harvested joint tissues indefinitely. Our group's reported vitrification protocol [Biomaterials 33 (2012) 6061-6068] takes 9.5 h to load cryoprotectants into intact articular cartilage on bone and achieves high cell viability, but further optimization is needed to shorten this protocol for clinical use. Herein, we use engineering models to calculate the spatial and temporal distributions of cryoprotectant concentration, solution vitrifiability, and freezing point for each step of the 9.5-h protocol. We then incorporate the following major design choices for developing a new shorter protocol: (i) all cryoprotectant loading solution concentrations are reduced, (ii) glycerol is removed as a cryoprotectant, and (iii) an equilibration step is introduced to flatten the final cryoprotectant concentration profiles. We also use a new criterion-the spatially and temporally resolved prediction of solution vitrifiability-to assess whether a protocol will be successful instead of requiring that each cryoprotectant individually reaches a certain concentration. A total cryoprotectant loading time of 7 h is targeted, and our new 7-h protocol is predicted to achieve a level of vitrifiability comparable to the proven 9.5-h protocol throughout the cartilage thickness.
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Affiliation(s)
- Nadia Shardt
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, T6G 1H9, Canada
| | - Zhirong Chen
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, T6G 1H9, Canada
| | - Shuying Claire Yuan
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, T6G 1H9, Canada
| | - Kezhou Wu
- Department of Surgery, University of Alberta, Edmonton, T6G 2B7, Canada; Department of Orthopedic Surgery, First Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Leila Laouar
- Department of Surgery, University of Alberta, Edmonton, T6G 2B7, Canada
| | - Nadr M Jomha
- Department of Surgery, University of Alberta, Edmonton, T6G 2B7, Canada
| | - Janet A W Elliott
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, T6G 1H9, Canada; Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, T6G 2R7, Canada.
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Pannell WC, Heidari KS, Mayer EN, Zimmerman K, Heckmann N, McKnight B, Hill JR, Vangsness CT, Hatch GF, Weber AE. High Tibial Osteotomy Survivorship: A Population-Based Study. Orthop J Sports Med 2019; 7:2325967119890693. [PMID: 31909056 PMCID: PMC6937536 DOI: 10.1177/2325967119890693] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background High tibial osteotomy (HTO) was developed to treat early medial compartment osteoarthritis in varus knees. Purpose To evaluate the midterm and long-term outcomes of HTO in a large population-based cohort of patients. Study Design Case-control study; Level of evidence, 3. Methods Data from the California Office of Statewide Health Planning and Development were used to identify patients undergoing HTO from 2000 to 2014. Patients with infectious arthritis, rheumatological disease, congenital deformities, malignancy, concurrent arthroplasty, or skeletal trauma were excluded. Demographic information was assessed for every patient. Failure was defined as conversion to total or unicompartmental knee arthroplasty. Differences between patients requiring arthroplasty and those who did not were identified using univariate analysis. Multivariate analysis was performed, and Kaplan-Meier survivorship estimates for 5- and 10-year survival were computed. Results A total of 1576 procedures were identified between 2000 and 2014; of these, 358 procedures were converted to arthroplasty within 10 years. Patients who went on to arthroplasty after HTO were older (48.23 ± 6.76 vs 42.66 ± 9.80 years, respectively; P < .001), had a higher incidence of hypertension (25.42% vs 17.82%, respectively; P = .001), and had a higher likelihood of having ≥1 comorbidity (38.0% vs 31.4%, respectively; P = .044). Patients were 8% more likely to require arthroplasty for each additional year in age (relative risk [RR], 1.08). Female patients were also at an increased risk of conversion to arthroplasty compared with male patients (RR, 1.38). Survivorship at 5 and 10 years was 80% and 56%, respectively, and the median time to failure was 5.1 years. Conclusion HTO may provide long-term survival in select patients. Careful consideration should be given to patient age, sex, and osteoarthritis of the knee when selecting patients for this procedure.
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Affiliation(s)
- William C Pannell
- Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Keemia Soraya Heidari
- Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Erik Norman Mayer
- Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Kathrin Zimmerman
- Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Nathanael Heckmann
- Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Braden McKnight
- Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Jeffrey Ryan Hill
- Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Carleton Thomas Vangsness
- Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - George Frederick Hatch
- Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Alexander Evan Weber
- Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
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Christensen JC, Kittelson AJ, Loyd BJ, Himawan MA, Thigpen CA, Stevens-Lapsley JE. Characteristics of young and lower functioning patients following total knee arthroplasty: a retrospective study. BMC Musculoskelet Disord 2019; 20:483. [PMID: 31656185 PMCID: PMC6815380 DOI: 10.1186/s12891-019-2817-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 09/05/2019] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Rates of total knee arthroplasty (TKA) procedures in younger, more medically complex patients have dramatically increased over the last several decades. No study has examined categorization of lower and higher functioning subgroups within the TKA patient population. Our study aimed to determine preoperative characteristics of younger patients who are lower functioning following TKA. METHODS Patients were categorized into higher and lower functioning subgroups defined using a median split of 1) postoperative Timed Up and Go (TUG) test times and 2) Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) physical function subscale scores. A split in age (65 years) was used to further classify patients into four categories: younger lower functioning, younger higher functioning, older lower functioning and older higher functioning. Measures from preoperative domains of health, psychological, physical performance and pain severity were examined for between-group differences. RESULTS Comparing mean values, the younger lower functioning subgroup using the TUG had significantly weaker knee extensor, slower gait speed, higher body mass index and greater pain compared to other subgroups. The younger lower functioning subgroup using the WOMAC physical function subscale demonstrated higher pain levels and Coping Strategies Questionnaire-Catastrophizing Subscale scores compared to the older lower functioning subgroup. CONCLUSIONS Poorer preoperative physical performance and pain severity appear to have the largest influence on early postoperative TKA recovery in younger lower functioning patients relative to both younger and older higher functioning patients.
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Affiliation(s)
- Jesse C Christensen
- Department of Physical Medicine and Rehabilitation, Eastern Colorado Geriatric Research Education and Clinical Center, 13001 E. 17th Pl, Aurora, CO, 80045, USA. .,Department of Physical Medicine and Rehabilitation, University of Colorado, Aurora, CO, USA.
| | - Andrew J Kittelson
- Department of Physical Medicine and Rehabilitation, University of Colorado, Aurora, CO, USA
| | - Brian J Loyd
- Department of Physical Therapy and Athletic Training, University of Utah, Salt Lake City, UT, USA
| | - Michael A Himawan
- Department of Physical Medicine and Rehabilitation, University of Colorado, Aurora, CO, USA
| | | | - Jennifer E Stevens-Lapsley
- Department of Physical Medicine and Rehabilitation, Eastern Colorado Geriatric Research Education and Clinical Center, 13001 E. 17th Pl, Aurora, CO, 80045, USA.,Department of Physical Medicine and Rehabilitation, University of Colorado, Aurora, CO, USA
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Teo AQA, Wong KL, Shen L, Lim JY, Toh WS, Lee EH, Hui JHP. Equivalent 10-Year Outcomes After Implantation of Autologous Bone Marrow-Derived Mesenchymal Stem Cells Versus Autologous Chondrocyte Implantation for Chondral Defects of the Knee. Am J Sports Med 2019; 47:2881-2887. [PMID: 31433674 DOI: 10.1177/0363546519867933] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND The use of bone marrow-derived mesenchymal stem cells (BMSCs) in cartilage repair procedures circumvents some of the limitations of autologous chondrocyte implantation (ACI), but long-term outcomes for this newer procedure are lacking. The authors previously reported comparable outcomes for the 2 procedures at 2-year follow-up. PURPOSE/HYPOTHESIS The purpose was to compare the long-term clinical outcomes of ACI versus BMSCs. It was hypothesized that there would be no significant difference between the groups in terms of patient-reported outcome scores and safety outcomes at 10-year follow-up. STUDY DESIGN Cohort study; Level of evidence, 2. METHODS Seventy-two patients who underwent either ACI or BMSC implantation-matched in terms of age and lesion site- were followed up to a median of at least 10 years. Patients were assessed with the 36-item Short Form Health Survey (SF-36), the International Knee Documentation Committee knee evaluation form, the Lysholm Knee Score, and the Tegner Activity Scale. In addition, information was obtained regarding any additional surgical procedures as well as safety data, with particular attention to infection and tumor formation. RESULTS There was an improvement in all patient-reported outcomes scores apart from the Mental Component Summary of the SF-36 after cartilage repair surgery. There was no significant difference in any of the patient-reported outcomes between cohorts at any time point. Six and 5 patients in the ACI and BMSC groups, respectively, underwent subsequent surgical procedures, including 1 total knee replacement in the BMSC group. None of the patients in either group developed any deep infection or tumor within the follow-up period. CONCLUSION BMSC implantation used for the treatment of chondral defects of the knee appears to result in equivalent clinical outcomes to first-generation ACI at up to 10 years, with no apparent increased tumor formation risk.
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Affiliation(s)
- Alex Quok An Teo
- University Orthopaedics, Hand and Reconstructive Microsurgery Cluster, National University Health System, Singapore
| | - Keng Lin Wong
- Department of Orthopaedic Surgery, Sengkang General Hospital, Sengkang Health, Singhealth, Singapore
- NUS Tissue Engineering Programme, Life Sciences Institute, National University of Singapore, Singapore
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Liang Shen
- Biostatistics Unit, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Jia Ying Lim
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Wei Seong Toh
- NUS Tissue Engineering Programme, Life Sciences Institute, National University of Singapore, Singapore
- Faculty of Dentistry, National University of Singapore, Singapore
| | - Eng Hin Lee
- University Orthopaedics, Hand and Reconstructive Microsurgery Cluster, National University Health System, Singapore
- NUS Tissue Engineering Programme, Life Sciences Institute, National University of Singapore, Singapore
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - James Hoi Po Hui
- University Orthopaedics, Hand and Reconstructive Microsurgery Cluster, National University Health System, Singapore
- NUS Tissue Engineering Programme, Life Sciences Institute, National University of Singapore, Singapore
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
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Johnson DB, Triplet JJ, Gaines DR, Gupta A, Unverferth KL. Mid-term outcomes following primary semi-constrained total knee arthroplasty in patients less than 60 years old, a retrospective review. Knee 2019; 26:714-719. [PMID: 30902516 DOI: 10.1016/j.knee.2019.02.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 12/07/2018] [Accepted: 02/02/2019] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Total knee arthroplasty (TKA) is a successful operation for osteoarthrosis. Typically, the knee can be balanced using posterior stabilized or cruciate retaining implants. However, in patients with severe deformity or ligamentous laxity, this cannot be obtained, and more constrained devices are needed. Semi-constrained implants, such as the Total Condylar III (TCIII) provide increased coronal stability. Outcomes in young (<60 years old) patients, following a primary semi-constrained TKA are not well reported in the literature. The purpose of this study was to evaluate patient reported outcomes, functional recovery, and implant survival in this population. METHODS We performed a retrospective review of 21 patients, under the age of 60 years, that underwent primary semi-constrained TKA. Patient demographics, postoperative outcomes, patient satisfaction scores, and implant loosening were reported. RESULTS At an average follow-up of 66 months, Knee Society Scores (KSS) and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) scores were 94.7 and 15.7, respectively. No difference in patient reported outcomes between 1 year and final follow-up were observed. Patient demographics such as age, BMI, and gender had no effect on functional outcomes. No cases of aseptic loosening were observed. Implant survivorship, patient satisfaction, and excellent or good results were reported in 100%, 85.7%, and 92%, respectively. CONCLUSION In young patients, in which the knee cannot be effectively balanced with standard releases, the use of a semi-constrained TKA as a primary implant lead to positive patient reported outcomes and no evidence of loosening at mid-term follow-up.
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Affiliation(s)
- David B Johnson
- OhioHealth, Orthopedic Residency Program, 5100 West Broad Street, Columbus, OH 43228, United States of America.
| | - Jacob J Triplet
- OhioHealth, Orthopedic Residency Program, 5100 West Broad Street, Columbus, OH 43228, United States of America.
| | - Daniel R Gaines
- OhioHealth, Orthopedic Residency Program, 5100 West Broad Street, Columbus, OH 43228, United States of America.
| | - Anand Gupta
- OhioHealth Research and Innovation Institute, 3545 Olentangy River Road, Suite 310, Columbus, OH 43214, United States of America.
| | - Kurt L Unverferth
- Orthopedic ONE, 4605 Sawmill Road, Columbus, OH 43220, United States of America
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León SA, Mei XY, Safir OA, Gross AE, Kuzyk PR. Long-term results of fresh osteochondral allografts and realignment osteotomy for cartilage repair in the knee. Bone Joint J 2019; 101-B:46-52. [PMID: 30648496 DOI: 10.1302/0301-620x.101b1.bjj-2018-0407.r1] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
AIMS The aim of this study was to report the outcome of femoral condylar fresh osteochondral allografts (FOCA) with concomitant realignment osteotomy with a focus on graft survivorship, complications, reoperation, and function. PATIENTS AND METHODS We identified 60 patients (16 women, 44 men) who underwent unipolar femoral condylar FOCA with concomitant realignment between 1972 and 2012. The mean age of the patients was 28.9 years (10 to 62) and the mean follow-up was 11.4 years (2 to 35). Failure was defined as conversion to total knee arthroplasty, revision allograft, or graft removal. Clinical outcome was evaluated using the modified Hospital for Special Surgery (mHSS) score. RESULTS A total of 14 grafts (23.3%) failed at a mean of 8.6 years (1.4 to 20.1). Graft survivorship was 87.3% (95% confidence interval (CI) 79.0 to 96.6), 85.0% (95% CI 75.8 to 95.3), 74.8% (95% CI 62.2 to 90.0), 65.2% (95% CI 49.9 to 85.2), and 59.8% (95% CI 43.5 to 82.1) at five, ten, 15, 20, and 25 years, respectively. A total of 23 patients (38.3%) developed complications, and 26 (43.3%) had a further operation. Persistent postoperative malalignment occurred more frequently in failed grafts (28.6% vs 4.3%; p = 0.023), and was a risk factor for graft failure (hazard ratio 6.55; 95% CI 1.61 27.71; p = 0.009). The mean mHSS score improved from 74.1 (40 to 91) preoperatively to 89.0 (66 to 100) at final follow-up (p < 0.001). CONCLUSION Femoral condylar FOCA with concomitant realignment osteotomy provides excellent long-term graft survival and reliable functional improvement. Persistent malalignment may increase the risk for graft failure.
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Affiliation(s)
- S A León
- Division of Orthopaedic Surgery, Mount Sinai Hospital, Toronto, Canada
| | - X Y Mei
- Division of Orthopaedic Surgery, Mount Sinai Hospital, Toronto, Canada
| | - O A Safir
- Division of Orthopaedic Surgery, Mount Sinai Hospital, Toronto, Canada
| | - A E Gross
- Division of Orthopaedic Surgery, Mount Sinai Hospital, Toronto, Canada
| | - P R Kuzyk
- Division of Orthopaedic Surgery, Mount Sinai Hospital, Toronto, Canada
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Abstract
BACKGROUND Revision of TKA as a result of polyethylene wear is decreasing, but long-term wear performance of polyethylene is still a topic of interest to surgeons and device manufacturers seeking to improve longevity. Measuring wear of modern, wear-resistant implants has been described using radiostereometric analysis (RSA). Performing in vivo measurements would establish whether implant retrieval studies are representative of wear in well-performing knees. QUESTIONS/PURPOSES For a single knee implant system, we sought to determine (1) the linear wear rate using RSA; (2) the association between demographic factors and wear rate; and (3) the association between limb alignment and wear rate. METHODS A total of 49 patients with a minimum followup of 10 years (median, 12 years; range, 10-20 years) were retrospectively selected. During the examined period, 4082 TKAs were performed of which 2085 were the implant examined in this study. There were 71 of these patients who met the criteria including an available full-leg radiograph postoperatively, and 34 of these patients returned for examination along with 15 additional from a separate RSA study that also met the criteria. All patients received a posterior-stabilized, cobalt-chromium-on-conventional polyethylene total knee implant from a single implant system, which was the most commonly used at our institution at the time. Patients underwent standing RSA examinations from 0° to 120° of flexion at a single time point without the use of marker beads. Linear wear rates (including creep) were measured based on intersections between the femoral component and tibial insert models. Associations between wear and patient age at surgery, sex, height, weight, body mass index, tibial insert size, and limb alignment were examined. RESULTS Using the maximum linear wear rate from any flexion angle, the lateral rate was 0.047 mm/year (interquartile range [IQR], 0.034-0.066 mm/year) and the medial rate was 0.052 mm/year (IQR, 0.040-0.069 mm/year). Using the median of the linear wear rates across all flexion angles, the lateral rate was 0.027 mm/year (IQR, 0.017-0.046 mm/year) and the medial rate was 0.038 mm/year (IQR, 0.022-0.054 mm/year). This rate for males was 0.049 mm/year medially (IQR, 0.042-0.077 mm/year) and 0.032 mm/year laterally (IQR, 0.026-0.059 mm/year), and for females was 0.027 mm/year medially (0.016-0.039 mm/year) and 0.020 mm/year laterally (IQR, 0.013-0.032 mm/year). The wear rate for males was greater medially (difference = 0.022 mm/year, p < 0.001) and laterally (difference = 0.012 mm/year, p = 0.008). There were associations between greater wear and increasing height (ρ = 0.48, p < 0.001 medially and ρ = 0.30, p = 0.04 laterally), decreasing body mass index (ρ = -0.31, p = 0.03 medially), and greater implant size (ρ = 0.34, p = 0.02 medially). Increasingly varus leg alignment was associated with greater medial wear (ρ = 0.33, p = 0.02). CONCLUSIONS Greater wear rates were associated with demographic factors and leg alignment. Further RSA wear studies of other modern implant systems would provide complementary information to retrieval studies and valuable data on wear resistance. CLINICAL RELEVANCE Good wear resistance was demonstrated by well-performing implants in patients at long-term followup with wear magnitudes in agreement with reported values from retrieval studies.
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Niemeläinen M, Moilanen T, Huhtala H, Eskelinen A. Outcome of knee arthroplasty in patients aged 65 years or less: a prospective study of 232 patients with 2-year follow-up. Scand J Surg 2018; 108:313-320. [PMID: 30522409 DOI: 10.1177/1457496918816918] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND AND AIMS Previous studies have reported lower implant survival rates, residual pain, and higher patient dissatisfaction rates following knee arthroplasty in younger knee arthroplasty patients. We aimed to assess the real-world effectiveness of knee arthroplasty in a prospective non-selected cohort of patients aged 65 years or less with 2-year follow-up. MATERIAL AND METHODS In total, 250 patients (272 knees) aged 65 years or less were enrolled into this prospective cohort study. Patient-reported outcome measures were used to assess the outcome. RESULTS The mean Oxford Knee Score and all Knee Injury and Osteoarthritis Outcome Score subscales increased significantly (p < 0.001) from preoperative situation to the 2-year follow-up. Significant increase (p < 0.001) in physical activity was detected in High-Activity Arthroplasty Score and RAND-36 Physical Component Score (PCS). Pain was also significantly (p < 0.001) relieved during the follow-up. Total disappearance of pain was rare at 2 years. Patients with milder (Kellgren-Lawrence grade 2) osteoarthritis were less satisfied and reported poorer patient-reported outcome measure than those with advanced osteoarthritis (Kellgren-Lawrence grade 3-4). There was no difference in the outcome (any patient-reported outcome measure) between patients who underwent total knee arthroplasty and those who received unicondylar knee arthroplasty. CONCLUSION We found that measured with a wide set of patient-reported outcome measures, both total knee arthroplasty and unicondylar knee arthroplasty resulted in significant pain relief, as well as improvement in physical performance and quality of life in patients aged 65 years or less. Real-world effectiveness of these procedures seems to be excellent. 15% of patients still had residual symptoms and were dissatisfied with the outcome at 2 years after the operation.
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Affiliation(s)
- M Niemeläinen
- Coxa Hospital for Joint Replacement, Tampere, Finland
| | - T Moilanen
- Coxa Hospital for Joint Replacement, Tampere, Finland
| | - H Huhtala
- Faculty of Social Sciences, University of Tampere, Tampere, Finland
| | - A Eskelinen
- Coxa Hospital for Joint Replacement, Tampere, Finland
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Preoperative tibial mechanical axis orientation and articular surface design influence on the coronal joint line orientation relative to the ground during gait after total knee arthroplasties. Knee Surg Sports Traumatol Arthrosc 2018; 26:3368-3376. [PMID: 29556891 DOI: 10.1007/s00167-018-4899-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 03/16/2018] [Indexed: 10/17/2022]
Abstract
PURPOSE Neutral lower limb alignment does not necessarily produce a horizontal joint line after total knee arthroplasty (TKA). The orientation of the pre- and postoperative tibial mechanical axes (TMAs-G), tibial component, and joint line relative to the ground were evaluated. METHODS The study group included 46 knees, 23 posterior-stabilized (PS) and 23 bicruciate-stabilized (BCS) TKAs. Using whole-leg standing radiographs, the static orientation of the pre- and postoperative TMAs-G and the tibial component as well as the postoperative alignment were measured. Applying image-matching techniques, the dynamic coronal orientation of the tibial component and joint line over the stance phase of gait were analysed. The correlation between static and dynamic orientation of the tibial component and differences in the joint line between the PS and BCS TKAs were evaluated. RESULTS In standing, the postoperative TMA-G (0.8° ± 2.8°) and tibial component (1.5° ± 2.4°) were laterally tilted with a strong correlation. The preoperative lateral tilt of the TMA-G (7.9° ± 5.1°) was a significant predictor of the postoperative TMA-G. The lateral tilt of the tibial component increased to 5.1° ± 2.4° on dynamic analysis, and was moderately correlated to static orientation. The dynamic orientation of the joint line was smaller for the BCS (1.8° ± 2.4°) compared to the PS (5.5° ± 2.7°) TKA. CONCLUSION Even with a mechanically well-aligned TKA, a lateral tilt of the tibial component was identified due to the lateral tilt of the postoperative TMA-G and the stance phase of gait. The BCS can better accommodate the residual lateral tilt of the joint line due to the 3° medial inclination of the joint surfaces of the implant. This study increases the awareness of surgeons regarding the possibility of the coronal joint line orientation to influence preoperative TMA-G and be accommodated by articular surface design, even in mechanically aligned TKA. LEVEL OF EVIDENCE IV.
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Glover AW, Santini AJA, Davidson JS, Pope JA. Mid- to long-term survivorship of oxidised zirconium total knee replacements performed in patients under 50years of age. Knee 2018; 25:617-622. [PMID: 29703630 DOI: 10.1016/j.knee.2018.03.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 03/21/2018] [Accepted: 03/26/2018] [Indexed: 02/02/2023]
Abstract
BACKGROUND Oxidised zirconium has the wear properties of ceramic with the breakage resistance of metal. This results in less wear and is of benefit to younger, higher demand patients. We report the short- to mid-term survival of 103 Profix zirconium total knee replacements performed in patients under 50years of age at time of surgery. METHODS Data was collected prospectively and survival analysis undertaken with strict end points used. SF (Short Form) 12 and WOMAC (Western Ontario and McMaster University) scores were recorded at pre-operatively and at twelve months, one, three, five, seven and ten years. RESULTS The average age at operation was 43.21years (range 20-50years) with a mean follow-up of 8.56years (range five to 15years). No patients died with one patient lost to follow-up after seven year review. The mean WOMAC score improved from 53 to 29, and the mean SF12 physical component improved from 29 to 36. The five year survivorship for implant related complications was 99.03% (95% CI 94.64-100.0) due to tibial component aseptic loosening at year one. Reoperation for any cause at five years including stiffness was 94.09% (95% CI 88.69-98.11). Forty-four patients were at least ten years post-operative at the time of analysis, with no aseptic loosening of either component giving 10year femoral component survival of 100% and all cause revision of 95.4%. The only zirconium femoral failure was at 12years. CONCLUSIONS Our data shows excellent mid-term survivorship of oxidised zirconium total knee replacements in younger, higher demand patients.
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Affiliation(s)
- Alexander W Glover
- The Lower Limb Arthroplasty Unit, The Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool L7 8XP, United Kingdom.
| | - Alasdair J A Santini
- The Lower Limb Arthroplasty Unit, The Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool L7 8XP, United Kingdom
| | - John S Davidson
- The Lower Limb Arthroplasty Unit, The Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool L7 8XP, United Kingdom
| | - Jill A Pope
- The Lower Limb Arthroplasty Unit, The Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool L7 8XP, United Kingdom
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Lange JK, Lee YY, Spiro SK, Haas SB. Satisfaction Rates and Quality of Life Changes Following Total Knee Arthroplasty in Age-Differentiated Cohorts. J Arthroplasty 2018; 33:1373-1378. [PMID: 29395722 DOI: 10.1016/j.arth.2017.12.031] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Revised: 12/15/2017] [Accepted: 12/16/2017] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Comparisons of satisfaction rates following total knee arthroplasty (TKA) among large, age-differentiated, rigorously matched cohorts are lacking. Therefore, we compared satisfaction rates following TKA in large, age-differentiated, propensity score-matched cohorts. METHODS We identified primary TKAs performed for non-inflammatory arthritis in patients of ages 18-55 or 65-75, yielding 529 younger and 2001 older patients. Patient-reported outcomes were recorded pre-operatively and 2 years post-operatively. 1:1 propensity score matching between groups yielded 529 patient pairs. Matching was based on gender, body mass index, American Society of Anesthesiologists grade, Charlson Comorbidity Index, and Short Form 12 Mental Health Component score. Outcomes were compared between matched groups using t-test and Wilcoxon rank-sum test. RESULTS Satisfaction with knee surgery was 86% among younger patients and 91% among older patients. Distribution of satisfaction responses was shifted toward greater satisfaction in older patients (P < .001). Overall quality of life (QOL) improvement was 91% among younger patients and 96% among older patients. Pre-operative and post-operative knee-related QOL was better among older patients (P < .0001). Post-operative global health-related QOL was equivalent between groups based on Short Form 12 Physical Component Score and Mental Health Component score (P = .6646 and P = .5705, respectively) and QOL improvement questionnaires (P = .181). Younger patients reported greater knee-related dysfunction and higher activity levels pre-operatively and post-operatively (P ≤ .0002). CONCLUSION Satisfaction with knee surgery was over 85% regardless of age. Younger patients perceived more knee-related dysfunction and dissatisfaction after surgery despite higher levels of self-reported activity pre-operatively and post-operatively.
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Affiliation(s)
- Jeffrey K Lange
- Department of Orthopaedic Surgery, Brigham and Women's Hospital, Boston, MA
| | - Yuo-Yu Lee
- Hospital for Special Surgery, New York, NY
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Murakami K, Hamai S, Moro-Oka T, Okazaki K, Higaki H, Shimoto T, Ikebe S, Nakashima Y. Variable tibiofemoral articular contact stress in fixed-bearing total knee arthroplasties. Orthop Traumatol Surg Res 2018; 104:177-183. [PMID: 29274859 DOI: 10.1016/j.otsr.2017.11.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 06/14/2017] [Accepted: 11/17/2017] [Indexed: 02/02/2023]
Abstract
BACKGROUND Rotational allowance at the tibiofemoral joint would be required during deep flexion. However, the amount of flexion and rotation has not been investigated in modern total knee arthroplasty (TKA) designs. The present study aimed to determine the contact stress in five posterior-stabilized fixed-bearing TKA designs. HYPOTHESIS We hypothesized that the contact area and stresses at the tibiofemoral articular surfaces vary according to the type of implant design and tested condition. MATERIALS AND METHODS The contact area and mean and peak contact stresses at the tibiofemoral articular surfaces were determined when a compressive load of 1200N was applied to a NexGen LPS Flex, Scorpio NRG, Genesis II, PFC Sigma, and Foundation implant. Measurements were performed at 0° and 45° flexion with 0°, 5°, 10°, and 15° rotation, and at 90° and 135° flexion with 0, 5°, 10°, 15°, and 20° rotation. RESULTS The LPS Flex showed that the femoral component could not achieve 20° rotation at 135° flexion. The Scorpio NRG showed less than 20MPa of contact stress at all conditions. The Genesis II showed higher contact stress than 20MPa at 135° flexion with 20° rotation. The PFC Sigma showed that the femoral component could not achieve >10° rotation at any flexion angle. The Foundation showed more than 20MPa of contact stress at 90° flexion with 20° rotation and at 135° flexion with 10°, 15°, and 20° rotation. DISCUSSION Surgeons should be more aware of the variable contact conditions of the tibiofemoral articular surfaces in individual TKA designs. LEVEL OF EVIDENCE Level IV, basic science study.
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Affiliation(s)
- K Murakami
- Department of orthopaedic surgery, Graduate school of medical sciences, Kyushu university, 1-3-3, Maidashi, 812-8582 Higashi-ku, Fukuoka, Japan
| | - S Hamai
- Department of orthopaedic surgery, Graduate school of medical sciences, Kyushu university, 1-3-3, Maidashi, 812-8582 Higashi-ku, Fukuoka, Japan.
| | - T Moro-Oka
- Department of orthopaedic surgery, Graduate school of medical sciences, Kyushu university, 1-3-3, Maidashi, 812-8582 Higashi-ku, Fukuoka, Japan; Moro-oka orthopaedic hospital, 101-3, Katawana Nakagawa-machi, 811-1201 Chikushi-gun, Fukuoka, Japan
| | - K Okazaki
- Department of orthopaedic surgery, Graduate school of medical sciences, Kyushu university, 1-3-3, Maidashi, 812-8582 Higashi-ku, Fukuoka, Japan
| | - H Higaki
- Department of biorobotics, faculty of engineering, Kyushu Sangyo university, 2-3-1, Matsugadai, 813-8583 Higashi-ku, Fukuoka, Japan
| | - T Shimoto
- Department of information and systems engineering, faculty of information engineering, Fukuoka institute of technology, 3-30-1, Wajiro-higashi, 811-0295 Higashi-ku, Fukuoka, Japan
| | - S Ikebe
- Department of biorobotics, faculty of engineering, Kyushu Sangyo university, 2-3-1, Matsugadai, 813-8583 Higashi-ku, Fukuoka, Japan
| | - Y Nakashima
- Department of orthopaedic surgery, Graduate school of medical sciences, Kyushu university, 1-3-3, Maidashi, 812-8582 Higashi-ku, Fukuoka, Japan
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Camus T, Long WJ. Total knee arthroplasty in young patients: Factors predictive of aseptic failure in the 2nd-4th decade. J Orthop 2017; 15:28-31. [PMID: 29200709 DOI: 10.1016/j.jor.2017.11.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Accepted: 11/05/2017] [Indexed: 11/29/2022] Open
Abstract
Objective In a recently published article we reviewed our long term outcomes of TKA in young patients (<55) with end stage OA. The purpose of this study was to identify what additional factors may predict aseptic failure in these young patients. Methods A retrospective review of all patients in our young TKA database was performed, and included failure only for mechanical wear and loosening. Results The IB-II prosthesis, a thin polyethylene (<9 mm), and higher Knee Society functional class at midterm follow-up was associated with higher failure rate. Conclusion This study helps better identify the etiology of failed young patient TKA.
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Affiliation(s)
- Tristan Camus
- Insall Scott Kelly Institute, 260 East 66th Street, New York, NY, 10065, United States.,Vancouver Island Health Authority, 1952 Bay Street, Victoria, British Columbia, V8R 1J8, Canada
| | - William J Long
- Insall Scott Kelly Institute, 260 East 66th Street, New York, NY, 10065, United States
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Lizaur-Utrilla A, Martinez-Mendez D, Miralles-Muñoz FA, Marco-Gómez L, Lopez-Prats FA. Comparable outcomes after total knee arthroplasty in patients under 55 years than in older patients: a matched prospective study with minimum follow-up of 10 years. Knee Surg Sports Traumatol Arthrosc 2017; 25:3396-3402. [PMID: 28028570 DOI: 10.1007/s00167-016-4406-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 12/07/2016] [Indexed: 11/24/2022]
Abstract
PURPOSE To compare outcomes after TKA for osteoarthritis between patients younger than 55 years and older patients. METHODS A cohort of 61 patients aged 55 years or younger was prospectively matched for gender, body mass index and knee function with patients with median age of 66 (range 60-70) years. Clinical evaluation was performed by the Knee Society scores (KSS), reduced Western Ontario and McMasters Universities (WOMAC) and Short-Form 12 (SF12) questionnaires. Radiological evaluation was also performed. RESULTS The median follow-up was 12 (range 10-14) years. Survival at 14 years was 96.7% (95% CI 92-100%) in the younger group and 98.2% (95% CI 95-100%) in the older group (n.s.). There was no deep infection or loosening of femoral or patellar component in either group. In the younger group, 2 patients required revision (aseptic tibial loosening at 8 years, and polyethylene wear at 10 years). In the older group, there was 1 revision (aseptic tibial loosening). Revision rate was not significantly different (n.s.). Multivariate analysis showed no significant relationship between revision and age, gender or BMI. At 5-year follow-up, there were no significant differences between groups in KSS knee or function, WOMAC pain or function, or SF12 physical or mental, but in the last evaluation there were better results in younger patients for KSS-function (p = 0.018), WOMAC-function (p = 0.028), SF12-physical (p = 0.001) and SF12-mental (p = 0.035), although these differences were not clinically relevant. A significant decline was noted for KSS-function in either group from 5-year to at last follow-up. CONCLUSIONS The TKA survival in younger patients was comparable to older active patients, without increased complications or revisions at a minimum follow-up of 10 years. Primary hybrid TKA can provide successful pain relief, function and quality of life in younger patients than 55 years with osteoarthritis. TKA is a suitable option for these young patients with appropriate surgical indications. LEVEL OF EVIDENCE II.
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Affiliation(s)
- Alejandro Lizaur-Utrilla
- Orthopaedic Surgery, Elda University Hospital, Ctra Elda-Sax s/n, 03600, Elda, Alicante, Spain.
- Traumatology and Orthopaedia, Miguel Hernandez University, Elche, Alicante, Spain.
| | - Daniel Martinez-Mendez
- Orthopaedic Surgery, Elda University Hospital, Ctra Elda-Sax s/n, 03600, Elda, Alicante, Spain
| | | | - Luis Marco-Gómez
- Orthopaedic Surgery, Elda University Hospital, Ctra Elda-Sax s/n, 03600, Elda, Alicante, Spain
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Castagnini F, Sudanese A, Bordini B, Tassinari E, Stea S, Toni A. Total Knee Replacement in Young Patients: Survival and Causes of Revision in a Registry Population. J Arthroplasty 2017; 32:3368-3372. [PMID: 28655567 DOI: 10.1016/j.arth.2017.05.052] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 05/28/2017] [Accepted: 05/30/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The incidence of total knee replacements (TKRs) in young patients is increasing. Few reports described encouraging results and acceptable survival rates. However, many concerns still persist, in particular about the high rates of infection and aseptic loosening. Aim of this article was to investigate the survival of TKRs in patients aged 45 years or younger in a registry population. METHODS The Emilia-Romagna registry RIPO was enquired about TKRs in patients ≤45 years; 238 TKRs were evaluated at a mean follow-up of 5.4 years (range 0-15.6 years), examining the features of the patients involved, the survival rate, and the reasons for revision of the knee implants. RESULTS The TKRs were generally performed in men, in private hospitals, and almost in half of the cases for other causes rather than primary osteoarthritis. The mean age was 40 years. Bicompartmental, cemented posterior-stabilized implants with fixed bearing were preferred. The survival rate was higher than 90% in the first 7 years, and then it decremented. The choice of implant did not apparently influence the survivorship. The final outcomes were acceptable, substantially in line with the previous literature about young patients. Twenty-one revisions occurred (8.8%), in particular 8 cases for aseptic loosening and 7 TKRs for infection. The rate of revision was higher than in overall population and even in some young cohorts. CONCLUSION TKRs in patients aged 45 years or younger seem a promising procedure, although the high rates of septic and aseptic loosening should be carefully evaluated. Prospective, well-designed studies are required to confirm and investigate these preliminary findings.
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Affiliation(s)
| | | | - Barbara Bordini
- Medical Technology Laboratory, Rizzoli Orthopedic Institute, Bologna, Italy
| | - Enrico Tassinari
- Hip and Knee Surgery, Rizzoli Orthopedic Institute, Bologna, Italy
| | - Susanna Stea
- Medical Technology Laboratory, Rizzoli Orthopedic Institute, Bologna, Italy
| | - Aldo Toni
- Hip and Knee Surgery, Rizzoli Orthopedic Institute, Bologna, Italy
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Total Knee Arthroplasty for Osteoarthritis in Patients Less Than Fifty-Five Years of Age: A Systematic Review. J Arthroplasty 2017; 32:2598-2603.e1. [PMID: 28456563 DOI: 10.1016/j.arth.2017.02.069] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 02/09/2017] [Accepted: 02/22/2017] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND The proportion of younger patients undergoing total knee arthroplasty (TKA) is increasing and predictions state that the <55 age group will be the fastest growing group by 2030. We aim to collate data across studies to assess functional outcomes following TKA in patients <55 years of age using a systematic review. METHODS The search identified 980 studies for title and abstract review. Forty-three full texts were then assessed. Thirteen studies underwent quality assessment and data extraction. Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines were followed throughout. Outcomes extracted included pre-operative and post-operative functional scores, range of motion, and patient satisfaction. Clinical complications and survival were also recorded. RESULTS Across 13 studies we were able to demonstrate 54-point improvement in clinical Knee Society Score and a 46-point improvement on functional Knee Society Score. A 2.9° improvement in range of motion was found at final follow-up. Satisfaction rate was 85.5%. Cumulative percentage all-cause revision rate was 5.4% across 1283 TKAs at a mean 10.8 years of follow-up. Ten-year survival, for aseptic loosening alone, was 98.2%. CONCLUSION TKA is an excellent treatment option for the young osteoarthritic knee with a >50% improvement in functional knee scores. Satisfaction is high and the revision rate remains 0.5% per year.
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Franceschetti E, Torre G, Palumbo A, Papalia R, Karlsson J, Ayeni OR, Samuelsson K, Franceschi F. No difference between cemented and cementless total knee arthroplasty in young patients: a review of the evidence. Knee Surg Sports Traumatol Arthrosc 2017; 25:1749-1756. [PMID: 28332044 DOI: 10.1007/s00167-017-4519-5] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 03/09/2017] [Indexed: 12/22/2022]
Abstract
PURPOSE The present piece of work provides improved knowledge about the evidence related to TKA in patients 60 years of age or younger, with special focus on fixation methods. Main concern of the review is to analyse the difference of survival rate and complications of cemented and cementless implants. METHODS An electronic search was carried out between October and December 2015, through CINAHL, PubMed and the Cochrane Central Registry of Controlled Trials web databases. Articles in English, Italian, French and Spanish were considered for inclusion. Only peer-reviewed studies with adult patients aged 60 years or less, with diagnosis of osteoarthritis in more than 90% of the subjects, were considered for inclusion. All studies had to report outcomes after TKA with either cemented or cementless fixation technique. RESULTS No significant differences in terms of clinical, functional and radiological outcomes were found between cemented and cementless implants. Good clinical and functional results were obtained in terms of the Knee Society score and Western Ontario and McMaster Universities Osteoarthritis Index for both techniques. Radiographic results showed that radiolucent lines of <2 mm in width were detected at radiographs, without difference between cemented or cementless implants. Well-conducted trials on cemented versus cementless TKA were carried out in few papers. A survival rate of over 90% was reported in the majority of the studies at a mean follow-up of 8.6 years (range 5-18 years). CONCLUSION Similar results were observed in terms of functional outcome and survival rates for both cemented and cementless TKAs. High survival rates were reported for both operative techniques and cemented TKA did not offer additional benefit. Assuming that cementless prosthesis allows a stable fixation and reduces the time of operation, the authors recommend the cementless fixation as a primary choice in the investigated patient population. However, evidence is low, and further research is needed. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Edoardo Franceschetti
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, 00128, Trigoria, Rome, Italy.
| | - Guglielmo Torre
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, 00128, Trigoria, Rome, Italy
| | - Alessio Palumbo
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, 00128, Trigoria, Rome, Italy
| | - Rocco Papalia
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, 00128, Trigoria, Rome, Italy
| | - Jón Karlsson
- Department of Orthopaedics, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Olufemi R Ayeni
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, ON, Canada
| | - Kristian Samuelsson
- Department of Orthopaedics, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Francesco Franceschi
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, 00128, Trigoria, Rome, Italy
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Younger patients have less severe radiographic disease and lower reported outcome scores than older patients undergoing total knee arthroplasty. Knee 2017; 24:663-669. [PMID: 27931954 DOI: 10.1016/j.knee.2016.11.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 08/29/2016] [Accepted: 11/05/2016] [Indexed: 02/02/2023]
Abstract
BACKGROUND Total knee arthroplasty (TKA) has been successful for many younger patients, but some experience residual symptoms or dissatisfaction. We performed this study to assess the relationship between radiographic disease severity and patient demographic features on patient reported TKA outcome scores. METHODS We compared 100 TKAs performed for 82 patients ≤55years old with 100 gender-matched TKAs performed for 85 patients between 65 and 75years old. These study cases represented 25% and 21%, respectively, of TKAs performed between January 2006 and June 2011. Radiographic disease severity was determined from preoperative weight bearing AP and lateral radiographs. Patient reported outcome instruments (SF-12, Knee Society function, and WOMAC) were assessed for all patients within six months before surgery and postoperatively at a mean of 20months after TKA. RESULTS Although younger patients had less mean articular cartilage loss (p<0.01), osteoarthritis severity (p<0.01), and Kellgren-Lawrence grade (p=0.05), they reported lower preoperative scores (p<0.01) exceeding the MCID for SF-12 mental health (8.3 points), WOMAC pain (12.1 points), and WOMAC physical function (6.9 points). While substantial improvement was noted, WOMAC pain scores remained lower than those reported by older TKA patients (11.5 points, p<0.05). CONCLUSION Younger patients with less severe radiographic arthritis experience significant improvement with TKA, but outcome scores do not match those attained by older patients with more severe radiographic disease.
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Webb JE, Yang HY, Collins JE, Losina E, Thornhill TS, Katz JN. The Evolution of Implant Design Decreases the Incidence of Lateral Release in Primary Total Knee Arthroplasty. J Arthroplasty 2017; 32:1505-1509. [PMID: 28089467 DOI: 10.1016/j.arth.2016.11.050] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 11/28/2016] [Accepted: 11/30/2016] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Appropriate balancing of the patellofemoral joint (PFJ) using a lateral release can help to prevent patellar instability in total knee arthroplasty (TKA). Contemporary total knee implant designs are characterized by enhanced trochlear geometry more similar to native knee anatomy to minimize instability and reduce utilization of a lateral release. METHODS We retrospectively reviewed consecutive TKA cases from a single senior surgeon's practice with 3 successive total knee designs: the Press-Fit Condylar (PFC), the Sigma, and the ATTUNE (DePuy, Warsaw, IN). We evaluated the use of lateral release with each implant type to determine if design changes have improved patellar stability, reducing the need for lateral release. We used multivariate analysis to determine the association between implant type and lateral release, adjusting for age, sex, preoperative alignment, and bearing type. RESULTS We evaluated 1991 records of primary TKAs performed from 1980-2015. As compared with the ATTUNE, the adjusted odds of lateral release were greater for patients receiving PFC implants (Odds ratio [OR] 6.35, 95% confidence interval [CI] 3.85,10.49) and Sigma implants (OR 2.02, 95% CI 1.26, 3.23). In addition, fixed bearing implants were associated with greater adjusted odds of lateral release (OR 1.80, 95% CI 1.24, 2.62). CONCLUSION We found that older knee implants were associated with higher use of lateral release, with successive designs the need for lateral release to balance the PFJ decreased. Continued design improvements to match the native knee anatomy may further improve the stability of the PFJ in future designs.
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Affiliation(s)
- Jonathan E Webb
- Department of Orthopedic Surgery, Orthopaedic and Arthritis Center for Outcomes Research, Brigham and Women's Hospital, Boston, Massachusetts
| | - Heidi Y Yang
- Department of Orthopedic Surgery, Orthopaedic and Arthritis Center for Outcomes Research, Brigham and Women's Hospital, Boston, Massachusetts
| | - Jamie E Collins
- Department of Orthopedic Surgery, Orthopaedic and Arthritis Center for Outcomes Research, Brigham and Women's Hospital, Boston, Massachusetts
| | - Elena Losina
- Department of Orthopedic Surgery, Orthopaedic and Arthritis Center for Outcomes Research, Brigham and Women's Hospital, Boston, Massachusetts; Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital Harvard Medical School, Boston, Massachusetts; Department of Biostatistics, Boston University School of Public Health, Boston, Massachusetts
| | - Thomas S Thornhill
- Department of Orthopedic Surgery, Orthopaedic and Arthritis Center for Outcomes Research, Brigham and Women's Hospital, Boston, Massachusetts
| | - Jeffrey N Katz
- Department of Orthopedic Surgery, Orthopaedic and Arthritis Center for Outcomes Research, Brigham and Women's Hospital, Boston, Massachusetts; Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital Harvard Medical School, Boston, Massachusetts
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Scott CEH, Oliver WM, MacDonald D, Wade FA, Moran M, Breusch SJ. Predicting dissatisfaction following total knee arthroplasty in patients under 55 years of age. Bone Joint J 2017; 98-B:1625-1634. [PMID: 27909124 DOI: 10.1302/0301-620x.98b12.bjj-2016-0375.r1] [Citation(s) in RCA: 105] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Accepted: 08/22/2016] [Indexed: 11/05/2022]
Abstract
AIMS Risk of revision following total knee arthroplasty (TKA) is higher in patients under 55 years, but little data are reported regarding non-revision outcomes. This study aims to identify predictors of dissatisfaction in these patients. PATIENTS AND METHODS We prospectively assessed 177 TKAs (157 consecutive patients, 99 women, mean age 50 years; 17 to 54) from 2008 to 2013. Age, gender, implant, indication, body mass index (BMI), social deprivation, range of movement, Kellgren-Lawrence (KL) grade of osteoarthritis (OA) and prior knee surgery were recorded. Pre- and post-operative Oxford Knee Score (OKS) as well as Short Form-12 physical (PCS) and mental component scores were obtained. Post-operative range of movement, complications and satisfaction were measured at one year. RESULTS Overall, 44 patients with 44 TKAs (24.9%) under 55 years of age were unsure or dissatisfied with their knee. Significant predictors of dissatisfaction on univariate analysis included: KL grade 1/2 OA (59% dissatisfied), poor pre-operative OKS, complications, poor improvements in PCS and OKS and indication (primary OA 19% dissatisfied, previous meniscectomy 41%, multiply operated 42%, other surgery 29%, BMI > 40 kg/m2 31%, post-traumatic OA 45%, and inflammatory arthropathy 5%). Poor pre-operative OKS, poor improvement in OKS and post-operative stiffness independently predicted dissatisfaction on multivariate analysis. CONCLUSION Patients receiving TKA younger than 55 years old should be informed about the increased risks of dissatisfaction. Offering TKA in KL 1/2 is questionable, with a dissatisfaction rate of 59%. Cite this article: Bone Joint J 2016;98-B:1625-34.
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Affiliation(s)
- C E H Scott
- Royal Infirmary of Edinburgh, 51 Little France Crescent, Old Dalkeith Road, Edinburgh EH16 4SA, UK
| | - W M Oliver
- Royal Infirmary of Edinburgh, 51 Little France Crescent, Old Dalkeith Road, Edinburgh EH16 4SA, UK
| | - D MacDonald
- Royal Infirmary of Edinburgh, 51 Little France Crescent, Old Dalkeith Road, Edinburgh EH16 4SA, UK
| | - F A Wade
- Royal Infirmary of Edinburgh, 51 Little France Crescent, Old Dalkeith Road, Edinburgh EH16 4SA, UK
| | - M Moran
- Royal Infirmary of Edinburgh, 51 Little France Crescent, Old Dalkeith Road, Edinburgh EH16 4SA, UK
| | - S J Breusch
- Royal Infirmary of Edinburgh, 51 Little France Crescent, Old Dalkeith Road, Edinburgh EH16 4SA, UK
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Strategies to Improve Total Knee Arthroplasty: A Multidisciplinary Research Conference. J Am Acad Orthop Surg 2017; 25 Suppl 1:S1-S3. [PMID: 27941416 DOI: 10.5435/jaaos-d-16-00633] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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Salkeld SL, Patron LP, Lien JC, Cook SD, Jones DG. Biological and functional evaluation of a novel pyrolytic carbon implant for the treatment of focal osteochondral defects in the medial femoral condyle: assessment in a canine model. J Orthop Surg Res 2016; 11:155. [PMID: 27906096 PMCID: PMC5133767 DOI: 10.1186/s13018-016-0488-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 10/25/2016] [Indexed: 12/03/2022] Open
Abstract
Background Osteochondral defects continue to be a clinical treatment challenge, and when left untreated, may cause pain and functional impairment. Pyrolytic carbon is a unique isotropic biomaterial used in heart valve and small joint replacements due to its excellent wear properties and biocompatibility with bone and articular cartilage. Therefore, a proposed solution is to utilize a focal pyrolytic carbon hemiarthroplasty implant as an alternative resurfacing treatment strategy for isolated cartilage lesions. Methods A canine model (n = 9) was used to evaluate the in vivo histologic response and function of a pyrolytic carbon implant replacing a full-thickness osteochondral defect in the medial femoral condyle (MFC) of the knee. The gross appearance and histologic results were compared to an identical cobalt-chromium (Co-Cr) alloy implant placed in a defect in the contralateral MFC and evaluated up to 52 weeks. Results Extensive bone incorporation to the stem portion was observed for both implant types. The total mean histologic score for the cartilage of the MFC surrounding the pyrolytic carbon implants was significantly improved compared to that of the Co-Cr alloy implants at all evaluation periods (p < 0.05). Histologic grading and gross observations at 52 weeks for pyrolytic carbon implants were similar to those of Co-Cr alloy implants at 24 weeks. At 24 weeks, the mean total histologic score for Co-Cr alloy implants was 11.6 ± 0.7 (0–16 range point; 16 = normal appearance), while at 52 weeks, the mean total score for the pyrolytic carbon implants was 11.7 ± 1.3. Mean total histologic score of opposing medial tibia cartilage for the pyrolytic carbon implants was superior to that of the Co-Cr alloy group at all evaluation periods and significantly improved over the Co-Cr alloy implant group at 24 weeks (p = 0.001) and 52 weeks (p < 0.001). Conclusions Use of a pyrolytic carbon implant for reconstruction of a focal cartilage defect demonstrated effective implant fixation and superior in vivo response compared to an identical Co-Cr alloy implant.
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Affiliation(s)
- Samantha L Salkeld
- Fellowship of Orthopaedic Researchers, 320 Metairie Hammond Highway, Suite 406, Metairie, LA, 70005, USA.
| | - Laura P Patron
- Fellowship of Orthopaedic Researchers, 320 Metairie Hammond Highway, Suite 406, Metairie, LA, 70005, USA
| | - Joan C Lien
- Fellowship of Orthopaedic Researchers, 320 Metairie Hammond Highway, Suite 406, Metairie, LA, 70005, USA
| | - Stephen D Cook
- Fellowship of Orthopaedic Researchers, 320 Metairie Hammond Highway, Suite 406, Metairie, LA, 70005, USA
| | - Deryk G Jones
- Department of Sports Medicine and Cartilage Restoration, Ochsner Sports Medicine Institute, Jefferson, LA, USA
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Johal H, Devji T, Schemitsch EH, Bhandari M. Viscosupplementation in Knee Osteoarthritis: Evidence Revisited. JBJS Rev 2016; 4:e11-e111. [DOI: 10.2106/jbjs.rvw.15.00098] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Bali K, Naudie DD, Howard JL, McCalden RW, MacDonald SJ, Teeter MG. Comparison of Tibial Insert Polyethylene Damage in Rotating Hinge and Highly Constrained Total Knee Arthroplasty: A Retrieval Analysis. J Arthroplasty 2016; 31:290-4. [PMID: 26253478 DOI: 10.1016/j.arth.2015.07.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Revised: 06/30/2015] [Accepted: 07/08/2015] [Indexed: 02/01/2023] Open
Abstract
This study compared the damage scores and damage patterns in 19 tibial inserts from rotating hinge (RH) implants with 19 inserts from highly constrained (HC) implants. Each insert was divided into 16 damage zones and each zone was subjectively graded from a scale of 0-3 for seven different damage modes. The overall damage scores were comparable for the two groups (RH: 64.1 ± 15.4; HC: 66.1 ± 29.0; P = 0.59). The HC group, however, had greater post damage (compared to the post-hole of RH) while the RH group had greater backside damage. The pattern of damage was also different, with burnishing and cold flow being more common in HC group while pitting, scratching and embedded debris were more common in the RH group.
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Affiliation(s)
- Kamal Bali
- Division of Orthopaedic Surgery, Department of Surgery, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada
| | - Douglas D Naudie
- Division of Orthopaedic Surgery, Department of Surgery, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada
| | - James L Howard
- Division of Orthopaedic Surgery, Department of Surgery, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada
| | - Richard W McCalden
- Division of Orthopaedic Surgery, Department of Surgery, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada
| | - Steven J MacDonald
- Division of Orthopaedic Surgery, Department of Surgery, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada
| | - Matthew G Teeter
- Division of Orthopaedic Surgery, Department of Surgery, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada; Department of Medical Biophysics, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada; Surgical Innovation Program, Lawson Health Research Institute, London, ON, Canada
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Anthropometric difference of the knee on MRI according to gender and age groups. Surg Radiol Anat 2015; 38:203-11. [PMID: 26253858 DOI: 10.1007/s00276-015-1536-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 08/01/2015] [Indexed: 12/20/2022]
Abstract
The purpose of this study was to analyze the anthropometric data from MRI images that were obtained from the non-arthritic knees in Asian adults, and to identify the existence of morphologic differences between age groups. This cross-sectional study included knee MR images of 535 patients (273 males, 262 females) taken for the evaluation of soft-tissue injuries, excluding cases with cartilage defect and malalignment. The age, gender, height, and BMI were also assessed. The patients were grouped into three different 20-year age groups (20-39, 40-59, and 60-79). The MRI analysis was performed on the anthropometric parameters of distal femur and posterior tibial slope. Age-related differences were found in femoral width, distance from the distal and posterior cartilage surface to the medial/lateral epicondyle, medial posterior condylar offset (PCO), and posterior condylar angle (PCA) (all P < 0.001), but not in lateral PCO, and medial/lateral tibial slopes. In the analysis of covariance analyses, significant interaction between gender and age groups was found in most parameters, but not in PCA, distance from the posterior cartilage surface to the medial epicondyle, or medial tibial slope. We found anthropometric differences among age groups exist in most of distal femoral parameters, but not in posterior tibial slope. The results of this study can be used by manufacturers to modify prostheses to be suitable for the future Asian elderly population.
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Konopka JF, Gomoll AH, Thornhill TS, Katz JN, Losina E. The cost-effectiveness of surgical treatment of medial unicompartmental knee osteoarthritis in younger patients: a computer model-based evaluation. J Bone Joint Surg Am 2015; 97:807-17. [PMID: 25995491 PMCID: PMC4430101 DOI: 10.2106/jbjs.n.00925] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Surgical options for the management of medial compartment osteoarthritis of the varus knee include high tibial osteotomy, unicompartmental knee arthroplasty, and total knee arthroplasty. We sought to determine the cost-effectiveness of high tibial osteotomy and unicompartmental knee arthroplasty as alternatives to total knee arthroplasty for patients fifty to sixty years of age. METHODS We built a probabilistic state-transition computer model with health states defined by pain, postoperative complications, and subsequent surgical procedures. We estimated transition probabilities from published literature. Costs were determined from Medicare reimbursement schedules. Health outcomes were measured in quality-adjusted life-years (QALYs). We conducted analyses over patients' lifetimes from the societal perspective, with health and cost outcomes discounted by 3% annually. We used probabilistic sensitivity analyses to account for uncertainty in data inputs. RESULTS The estimated discounted QALYs were 14.62, 14.63, and 14.64 for high tibial osteotomy, unicompartmental knee arthroplasty, and total knee arthroplasty, respectively. Discounted total direct medical costs were $20,436 for high tibial osteotomy, $24,637 for unicompartmental knee arthroplasty, and $24,761 for total knee arthroplasty (in 2012 U.S. dollars). The incremental cost-effectiveness ratio (ICER) was $231,900 per QALY for total knee arthroplasty and $420,100 per QALY for unicompartmental knee arthroplasty. Probabilistic sensitivity analyses showed that, at a willingness-to-pay (WTP) threshold of $50,000 per QALY, high tibial osteotomy was cost-effective 57% of the time; total knee arthroplasty, 24%; and unicompartmental knee arthroplasty, 19%. At a WTP threshold of $100,000 per QALY, high tibial osteotomy was cost-effective 43% of time; total knee arthroplasty, 31%; and unicompartmental knee arthroplasty, 26%. CONCLUSIONS In fifty to sixty-year-old patients with medial unicompartmental knee osteoarthritis, high tibial osteotomy is an attractive option compared with unicompartmental knee arthroplasty and total knee arthroplasty. This finding supports greater utilization of high tibial osteotomy for these patients. The cost-effectiveness of high tibial osteotomy and of unicompartmental knee arthroplasty depend on rates of conversion to total knee arthroplasty and the clinical outcomes of the conversions.
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Affiliation(s)
- Joseph F. Konopka
- Orthopedic and Arthritis Center for Outcomes Research (J.F.K., J.N.K., and E.L.), Department of Orthopedic Surgery (J.F.K., T.S.T., J.N.K., and E.L.), Brigham and Women’s Hospital, 75 Francis Street, BC-4016, Boston, MA 02115. E-mail address for E. Losina:
| | - Andreas H. Gomoll
- Department of Orthopedic Surgery, Brigham and Women’s Hospital, Harvard Medical School, 850 Boylston Street, Chestnut Hill, MA 02467
| | - Thomas S. Thornhill
- Orthopedic and Arthritis Center for Outcomes Research (J.F.K., J.N.K., and E.L.), Department of Orthopedic Surgery (J.F.K., T.S.T., J.N.K., and E.L.), Brigham and Women’s Hospital, 75 Francis Street, BC-4016, Boston, MA 02115. E-mail address for E. Losina:
| | - Jeffrey N. Katz
- Orthopedic and Arthritis Center for Outcomes Research (J.F.K., J.N.K., and E.L.), Department of Orthopedic Surgery (J.F.K., T.S.T., J.N.K., and E.L.), Brigham and Women’s Hospital, 75 Francis Street, BC-4016, Boston, MA 02115. E-mail address for E. Losina:
| | - Elena Losina
- Orthopedic and Arthritis Center for Outcomes Research (J.F.K., J.N.K., and E.L.), Department of Orthopedic Surgery (J.F.K., T.S.T., J.N.K., and E.L.), Brigham and Women’s Hospital, 75 Francis Street, BC-4016, Boston, MA 02115. E-mail address for E. Losina:
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50
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Stambough JB, Clohisy JC, Barrack RL, Nunley RM, Keeney JA. Increased risk of failure following revision total knee replacement in patients aged 55 years and younger. Bone Joint J 2014; 96-B:1657-62. [DOI: 10.1302/0301-620x.96b12.34486] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The aims of this retrospective study were to compare the mid-term outcomes following revision total knee replacement (TKR) in 76 patients (81 knees) < 55 years of age with those of a matched group of primary TKRs based on age, BMI, gender and comorbid conditions. We report the activity levels, functional scores, rates of revision and complications. Compared with patients undergoing primary TKR, those undergoing revision TKR had less improvement in the mean Knee Society function scores (8.14 (–55 to +60) vs 23.3 points (–40 to +80), p < 0.001), a similar improvement in UCLA activity level (p = 0.52), and similar minor complication rates (16% vs 13%, p = 0.83) at a mean follow-up of 4.6 years (2 to 13.4). Further revision surgery was more common among revised TKRs (17% vs 5%, p = 0.02), with deep infection and instability being the most common reasons for failure. As many as one-third of patients aged < 55 years in the revision group had a complication or failure requiring further surgery. Young patients undergoing revision TKR should be counselled that they can expect somewhat less improvement and a higher risk of complications than occur after primary TKR. Cite this article: Bone Joint J 2014; 96-B:1657–62
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Affiliation(s)
- J. B. Stambough
- Washington University in St. Louis, 660
South Euclid Ave, Campus Box 8233, Saint Louis, Missouri
63110, USA
| | - J. C. Clohisy
- Washington University in St. Louis, 660
South Euclid Ave, Campus Box 8233, Saint Louis, Missouri
63110, USA
| | - R. L. Barrack
- Washington University in St. Louis, 660
South Euclid Ave, Campus Box 8233, Saint Louis, Missouri
63110, USA
| | - R. M. Nunley
- Washington University in St. Louis, 660
South Euclid Ave, Campus Box 8233, Saint Louis, Missouri
63110, USA
| | - J. A. Keeney
- Washington University in St. Louis, 660
South Euclid Ave, Campus Box 8233, Saint Louis, Missouri
63110, USA
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