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Pagan C, Karasavvidis T, Cohen-Rosenblum A, Hannon CP, Lombardi AV, Vigdorchik J. Technology in Total Knee Arthroplasty in 2023. J Arthroplasty 2024:S0883-5403(24)00751-4. [PMID: 39053667 DOI: 10.1016/j.arth.2024.07.028] [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: 12/20/2023] [Revised: 07/15/2024] [Accepted: 07/17/2024] [Indexed: 07/27/2024] Open
Abstract
Over the past few decades, instrumentation and techniques for total knee arthroplasty (TKA) have evolved from conventional manual tools to a wide range of technologies, including calibrated guides for accurate bone cuts and alignment, smart tools, dynamic intraoperative sensors for soft-tissue balancing, patient-specific guides, computer navigation, and robotics. This review is intended to provide an overview of the latest advancements in TKA technology, address potential challenges and solutions related to the application of these technologies, and explore their limitations.
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Affiliation(s)
- Cale Pagan
- Adult Reconstruction and Joint Replacement Service, Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA.
| | - Theofilos Karasavvidis
- Adult Reconstruction and Joint Replacement Service, Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA
| | | | - Charles P Hannon
- Deparment of Orthopaedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Jonathan Vigdorchik
- Adult Reconstruction and Joint Replacement Service, Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA
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Conway J, Delanois RE, Mont MA, Stavrakis A, McPherson E, Stolarski E, Incavo S, Oakes D, Salvagno R, Adams JS, Kisch-Hancock A, Tenorio E, Leighton A, Ryser S, Kauvar LM, Bernthal NM. Phase 1 study of the pharmacokinetics and clinical proof-of-concept activity of a biofilm-disrupting human monoclonal antibody in patients with chronic prosthetic joint infection of the knee or hip. Antimicrob Agents Chemother 2024:e0065524. [PMID: 39012102 DOI: 10.1128/aac.00655-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Accepted: 06/24/2024] [Indexed: 07/17/2024] Open
Abstract
We report the results of a first-in-human phase 1 clinical study to evaluate TRL1068, a native human monoclonal antibody that disrupts bacterial biofilms with broad-spectrum activity against both Gram-positive and Gram-negative species. The study population consisted of patients with chronic periprosthetic joint infections (PJIs) of the knee or hip, including both monomicrobial and polymicrobial infections, that are highly resistant to antibiotics due to biofilm formation. TRL1068 was administered via a single pre-surgical intravenous infusion in three sequentially ascending dose groups (6, 15, and 30 mg/kg). Concomitant perioperative antibiotics were pathogen-targeted as prescribed by the treating physician. In this double-blinded study, 4 patients were randomized to receive placebo and 11 patients to receive TRL1068 on day 1, as well as targeted antibiotics for 7 days prior to the scheduled removal of the infected implant and placement of an antibiotic-eluting spacer as the first stage of the standard of care two-stage exchange arthroplasty. No adverse events attributable to TRL1068 were reported. TRL1068 serum half-life was 15-18 days. At day 8, the concentration in synovial fluid was approximately 60% of the blood level and thus at least 15-fold above the threshold for biofilm-disrupting activity in vitro. Explanted prostheses were sonicated to release adherent bacteria for culture, with elimination of the implant bacteria observed in 3 of the 11 patients who received TRL1068, which compares favorably to prior PJI treatments. None of the patients who received TRL1068 had a relapse of the original infection by the end of the study (day 169). CLINICAL TRIALS This study is registered with ClinicalTrials.gov as NCT04763759.
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Affiliation(s)
- Janet Conway
- Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, LifeBridge Health, Baltimore, Maryland
| | - Ronald E Delanois
- Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, LifeBridge Health, Baltimore, Maryland
| | - Michael A Mont
- Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, LifeBridge Health, Baltimore, Maryland
| | | | - Edward McPherson
- University of California Los Angeles, Los Angeles, California, USA
| | | | | | - Daniel Oakes
- University of Southern California, Los Angeles, California, USA
| | | | - John S Adams
- University of California Los Angeles, Los Angeles, California, USA
| | | | - Edgar Tenorio
- Trellis Bioscience, Inc., Redwood City, California, USA
| | | | - Stefan Ryser
- Trellis Bioscience, Inc., Redwood City, California, USA
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Buijs GS, Kievit AJ, Walinga AB, Schafroth MU, Hirschmann MT, Blankevoort L. Visible fluid motion on manipulation as the new threshold for intraoperatively determined knee arthroplasty component loosening: A Delphi study. Knee Surg Sports Traumatol Arthrosc 2024. [PMID: 39010716 DOI: 10.1002/ksa.12357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 06/24/2024] [Accepted: 06/28/2024] [Indexed: 07/17/2024]
Abstract
PURPOSE There is a lack of a clear, uniform definition for intraoperatively assessed component loosening of a knee arthroplasty component, complicating the interpretation and interchangeability of results of diagnostic studies using an intraoperative observation as the reference test. The purpose of this study was to establish a consensus among specialised knee revision surgeons regarding the definition of intraoperatively determined loosening of total or unicondylar knee arthroplasty components. METHODS Utilising the Delphi consensus method, an international panel of highly specialised knee revision surgeons was invited to participate in a three-round process. The initiation of the first round involved the exploration of possible criteria for intraoperatively determined loosening with open questions. The second round focused on rating these criteria importance on a five-point Likert scale. For the third round, criteria that reached consensus were summarised in consecutive definitions for intraoperatively determined loosening and proposed to the panel. Consensus was established when over 70% of participants agreed with a definition for intraoperatively determined loosening. RESULTS The 34 responding panel members described in total 60 different criteria in the first round of which 34 criteria received consensus in the second round. Summarising these criteria resulted in four different definitions as minimal requirements for intraoperatively determined loosening. Eighty-eight percent of the panel members agreed on defining a component as loose if there is visible fluid motion at the interface observed during specific movements or when gently applying direct force. CONCLUSION This study successfully established a consensus using a Delphi method among knee revision surgeons on the definition of intraoperatively determined component loosening. By agreeing on the visibility of fluid motion as new definition, this study provides a standardised reference for future diagnostic research. This definition will enhance the interpretability and interchangeability of future diagnostic studies evaluating knee arthroplasty component loosening. LEVEL OF EVIDENCE Level V.
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Affiliation(s)
- George S Buijs
- Department of Orthopedic Surgery and Sport Medicine, Amsterdam UMC, Location AMC, Amsterdam, The Netherlands
- Amsterdam Movement Sciences, Musculoskeletal Health, Amsterdam, The Netherlands
| | - Arthur J Kievit
- Department of Orthopedic Surgery and Sport Medicine, Amsterdam UMC, Location AMC, Amsterdam, The Netherlands
- Amsterdam Movement Sciences, Musculoskeletal Health, Amsterdam, The Netherlands
| | - Alex B Walinga
- Department of Orthopedic Surgery and Sport Medicine, Amsterdam UMC, Location AMC, Amsterdam, The Netherlands
- Amsterdam Movement Sciences, Musculoskeletal Health, Amsterdam, The Netherlands
| | - Matthias U Schafroth
- Department of Orthopedic Surgery and Sport Medicine, Amsterdam UMC, Location AMC, Amsterdam, The Netherlands
- Amsterdam Movement Sciences, Musculoskeletal Health, Amsterdam, The Netherlands
| | - Michael T Hirschmann
- Department of Orthopedic Surgery and Traumatology, Kantonsspital Baselland, Bruderholz, Switzerland
- Department of Clinical Research, Research Group Michael T. Hirschmann, Regenerative Medicine & Biomechanics, University of Basel, Basel, Switzerland
| | - Leendert Blankevoort
- Department of Orthopedic Surgery and Sport Medicine, Amsterdam UMC, Location AMC, Amsterdam, The Netherlands
- Amsterdam Movement Sciences, Musculoskeletal Health, Amsterdam, The Netherlands
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Buijs GS, Kievit AJ, Ter Wee MA, Magg C, Dobbe JGG, Streekstra GJ, Schafroth MU, Blankevoort L. Non-invasive quantitative assessment of induced component displacement can safely and accurately diagnose tibial component loosening in patients: A prospective diagnostic study. Knee Surg Sports Traumatol Arthrosc 2024. [PMID: 38819937 DOI: 10.1002/ksa.12299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/17/2024] [Accepted: 05/17/2024] [Indexed: 06/02/2024]
Abstract
PURPOSE Aseptic loosening often requires major, expensive and invasive revision surgery. Current diagnostic modalities merely show indirect signs of loosening. A recent proof of concept study proposed a non-invasive technique for the quantitative and visual assessment of implant movement as a diagnostic aid for tibial component loosening. The primary research question addressed is whether this novel diagnostic modality can safely and effectively aid the diagnosis of aseptic loosening. METHODS This clinical study included patients suspected of aseptic total knee arthroplasty (TKA) loosening listed for revision surgery and asymptomatic patients. Safety was evaluated using a numerical rating scale (NRS) for discomfort and by registration of adverse events. Feasibility was assessed by recording the duration and ease of the procedure. Intra- and interrater reliability were evaluated. In symptomatic patients, diagnostic accuracy metrics were evaluated with intra-operative assessment as a reference test. RESULTS In total, 34 symptomatic and 38 asymptomatic knees with a TKA were analysed. The median NRS for discomfort during loading was 6 (interquartile range [IQR]: 3.75-7.00) in symptomatic patients and 2 (IQR: 1.00-3.00) in asymptomatic patients. No adverse events were reported. The majority of users found the use of the loading device easy. The median time spent in the computed tomography room was 9 min (IQR: 8.00-11.00). Excellent to good intra- and interrater reliabilities were achieved. Diagnostic accuracy analysis resulted in a sensitivity of 0.91 (95% confidence interval [CI]: 0.72-0.97) and a specificity of 0.72 (95% CI: 0.43-0.90). CONCLUSIONS The proposed diagnostic method is safe, feasible, reliable and accurate in aiding the diagnosis of aseptic tibial component loosening. LEVEL OF EVIDENCE Level II.
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Affiliation(s)
- George S Buijs
- Department of Orthopedic Surgery and Sport Medicine, Amsterdam UMC, location AMC, Amsterdam, The Netherlands
- Amsterdam Movement Sciences, Musculoskeletal Health, Meibergdreef 9, Amsterdam, The Netherlands
| | - Arthur J Kievit
- Department of Orthopedic Surgery and Sport Medicine, Amsterdam UMC, location AMC, Amsterdam, The Netherlands
- Amsterdam Movement Sciences, Musculoskeletal Health, Meibergdreef 9, Amsterdam, The Netherlands
| | - Maaike A Ter Wee
- Department of Orthopedic Surgery and Sport Medicine, Amsterdam UMC, location AMC, Amsterdam, The Netherlands
- Amsterdam Movement Sciences, Musculoskeletal Health, Meibergdreef 9, Amsterdam, The Netherlands
- Department of Biomedical Engineering and Physics, Amsterdam UMC location University of Amsterdam, Amsterdam, The Netherlands
| | - Caroline Magg
- Department of Biomedical Engineering and Physics, Amsterdam UMC location University of Amsterdam, Amsterdam, The Netherlands
- Quantitative Healthcare Analysis (QurAI) Group, Informatics Institute, University of Amsterdam, Amsterdam, The Netherlands
| | - Johannes G G Dobbe
- Amsterdam Movement Sciences, Musculoskeletal Health, Meibergdreef 9, Amsterdam, The Netherlands
- Department of Biomedical Engineering and Physics, Amsterdam UMC location University of Amsterdam, Amsterdam, The Netherlands
| | - Geert J Streekstra
- Amsterdam Movement Sciences, Musculoskeletal Health, Meibergdreef 9, Amsterdam, The Netherlands
- Department of Biomedical Engineering and Physics, Amsterdam UMC location University of Amsterdam, Amsterdam, The Netherlands
| | - Matthias U Schafroth
- Department of Orthopedic Surgery and Sport Medicine, Amsterdam UMC, location AMC, Amsterdam, The Netherlands
- Amsterdam Movement Sciences, Musculoskeletal Health, Meibergdreef 9, Amsterdam, The Netherlands
| | - Leendert Blankevoort
- Department of Orthopedic Surgery and Sport Medicine, Amsterdam UMC, location AMC, Amsterdam, The Netherlands
- Amsterdam Movement Sciences, Musculoskeletal Health, Meibergdreef 9, Amsterdam, The Netherlands
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Koster LA, Kaptein BL, van der Linden-van der Zwaag EHMJ, Nelissen RGHH. Knee kinematics are not different between asymmetrical and symmetrical tibial baseplates in total knee arthroplasty: A fluoroscopic analysis of step-up and lunge motions. Knee Surg Sports Traumatol Arthrosc 2024; 32:1253-1263. [PMID: 38488225 DOI: 10.1002/ksa.12125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 02/14/2024] [Accepted: 02/16/2024] [Indexed: 04/23/2024]
Abstract
PURPOSE This clinical fluoroscopy study investigated knee kinematics of two different cemented fixed-bearing, posterior-stabilised (PS) total knee arthroplasty (TKA) designs: an asymmetric tibial component including an asymmetric insert designed to optimise personalised balance and fit and its precursor symmetrical design with symmetric insert. METHODS A consecutive series of patients (16 TKAs from each treatment group) participating in a randomised controlled trial comparing TKA migration was included. The exclusion criterion was the use of walking aids. Flat-panel fluoroscopic recordings of step-up and lunge motions were acquired 1-year postoperatively. Medial and lateral contact points (CPs) were determined to calculate CP displacement, femoral axial rotation and pivot position. Using linear mixed-effects modelling techniques, kinematics between TKA designs were compared. RESULTS During knee extension between 20° flexion and full extension, the CPs moved anteriorly combined with a small internal femoral rotation (a screw-home mechanism). Whereas CP movement was reversed: femoral rollback, external femoral rotation while flexing the knee between full extension and 20° knee flexion, At larger flexion angles, femoral axial rotation (FAR) occurred around a lateral pivot point both during step-up and lunge. The symmetric design had a 2.3° larger range of FAR compared to the asymmetric design during lunge (p = 0.02). All other kinematics were comparable. CONCLUSION Despite the differences in design, this study showed that the asymmetric and symmetric PS TKA designs had mostly comparable knee kinematics during step-up and lunge motions. It is therefore expected that the functionality of the successor TKA design is similar to that of its precursor design. LEVEL OF EVIDENCE Level II, prospective comparative study.
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Affiliation(s)
- Lennard A Koster
- Department of Orthopaedics, Biomechanics and Imaging Group, Leiden University Medical Center, Leiden, The Netherlands
| | - Bart L Kaptein
- Department of Orthopaedics, Biomechanics and Imaging Group, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Rob G H H Nelissen
- Department of Orthopaedics, Biomechanics and Imaging Group, Leiden University Medical Center, Leiden, The Netherlands
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Urbain A, Putman S, Migaud H, Pasquier G, Girard J, Dartus J. Long-term results (after a mean 11.3years, and up to 22years, of follow-up) of the Legacy Constrained Condylar Knee (LCCK™) in primary total knee arthroplasty. Orthop Traumatol Surg Res 2024; 110:103795. [PMID: 38081358 DOI: 10.1016/j.otsr.2023.103795] [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: 03/20/2023] [Revised: 07/24/2023] [Accepted: 08/30/2023] [Indexed: 12/31/2023]
Abstract
INTRODUCTION The use of a sliding prosthesis in total knee arthroplasty (TKA) with increased stress is an intermediate solution in primary surgery, between posteriorly stabilized prostheses and hinged prostheses, in cases of ligamentous laxity and/or loss of bone substance. Favorable results have been reported in the medium term but to our knowledge, this type of prosthesis has not been evaluated in Europe beyond 10 years of follow-up. We therefore conducted a retrospective study in order to carry out: 1) the study of the survival of the Legacy Constrained Condylar Knee (LCCK™) prosthesis in primary surgery, 2) the analysis of complications, functional scores and radiographic data, 3) the analysis of the link between the diaphyseal filling rate and prosthetic loosening. HYPOTHESIS The LCCK™ sliding prosthesis with increased constraint has equivalent long-term survival and clinical results to standard posteriorly stabilized TKA and superior to hinged TKA. MATERIAL AND METHOD A retrospective series of 141 LCCK™ implanted in 134 patients between 1997 and 2010 was analyzed. Survival was assessed with censoring through an evaluation of partial or total revision of the implants. The functional results were evaluated using the IKS and Oxford 12 scores. Data regarding the Canal Fill Ratio (CFR) and the presence of pathological periprosthetic lines were also collected. RESULTS The average follow-up was 11.3±5.3years with a maximum follow-up of 22.7years. Survival at 20years was 90.8% [95% CI: 83.7-95.7]. The rate of early complications was 13.5% (19/141), predominantly comprised of venous thrombosis (6/141), hematomas (3/141 including two requiring surgical drainage), stiffness (3/141) and early infections (3/141). The rate of late complications was 17% (24/141), led by stiffness (4.4%; 6/141), infections (2.9%; 4/141) and hardware failure (2. 2%; 3/141). Ten of the 141 patients (7.1%) had LCCK failure, including 3 (2.1%) for stiffness, 3 (2.1%) for hardware failure, 2 (1.4%) for infection, 1 (0.7%) for laxity and 1 (0.7%) for a periprosthetic fracture. No aseptic loosening was found. The total IKS score went from 65 [0-116] to 143 [79-200] at follow-up, the IKS knee score went from 30 [0-66] to 85 [44-100], and the IKS function score went from 35 [0-70] to 57 [0-100]. The Oxford score went from 14 [2-25] to 34 [15-48] at follow-up. Only two patients (1.4%) presented with a partial periprosthetic line. The tibial CFR was 0.81 and the femoral CFR was 0.76. The influence of the CFR could not be analyzed due to the absence of loosening. DISCUSSION The LCCK™ prosthesis in primary surgery has good medium-term survival, a significant improvement in functional scores and a complication rate comparable to posteriorly stabilized prostheses. The complication rate is lower than that of hinged prostheses. LEVEL OF EVIDENCE IV; single-center retrospective study.
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Affiliation(s)
- Antoine Urbain
- Université de Lille, Hauts-de-France, 59000 Lille, France; Service d'orthopédie II, hôpital Roger-Salengro, CHU de Lille, place de Verdun, 59000 Lille, France.
| | - Sophie Putman
- Université de Lille, Hauts-de-France, 59000 Lille, France; Service d'orthopédie II, hôpital Roger-Salengro, CHU de Lille, place de Verdun, 59000 Lille, France
| | - Henri Migaud
- Université de Lille, Hauts-de-France, 59000 Lille, France; Service d'orthopédie II, hôpital Roger-Salengro, CHU de Lille, place de Verdun, 59000 Lille, France
| | - Gilles Pasquier
- Université de Lille, Hauts-de-France, 59000 Lille, France; Service d'orthopédie II, hôpital Roger-Salengro, CHU de Lille, place de Verdun, 59000 Lille, France
| | - Julien Girard
- Université de Lille, Hauts-de-France, 59000 Lille, France; Service d'orthopédie II, hôpital Roger-Salengro, CHU de Lille, place de Verdun, 59000 Lille, France; Université de Artois, Université Littoral Côte d'Opale, EA 7369 - Unité de Recherche Pluridisciplinaire Sport Santé Société (URePSS), 59000 Lille, France
| | - Julien Dartus
- Université de Lille, Hauts-de-France, 59000 Lille, France; Service d'orthopédie II, hôpital Roger-Salengro, CHU de Lille, place de Verdun, 59000 Lille, France
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Schreiner MM, Straub J, Apprich S, Staats K, Windhager R, Aletaha D, Böhler C. The influence of biological DMARDs on aseptic arthroplasty loosening: a retrospective cohort study. Rheumatology (Oxford) 2024; 63:970-976. [PMID: 37402609 PMCID: PMC10986799 DOI: 10.1093/rheumatology/kead304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 05/21/2023] [Accepted: 06/08/2023] [Indexed: 07/06/2023] Open
Abstract
OBJECTIVE To investigate whether biological DMARDs affect the risk of aseptic loosening after total hip/knee arthroplasty (THA/TKA) in patients with RA. METHODS We retrospectively identified all patients suffering from RA who underwent THA/TKA at our academic centre between 2002 and 2015 and linked them with an existing prospective observational RA database at our institution. The risk of aseptic loosening was estimated using radiological signs of component loosening (RCL). A time-dependent Cox regression analysis was used to compare the risk of implant loosening between patients treated with traditional DMARDS and biological DMARDs, or alternately both over time. RESULTS A total of 155 consecutive total joint arthroplasties (TJAs) (103 TKA vs 52 THA) was retrospectively included in the study. Mean age at implantation was 59 ± 13 years. Mean follow-up time was 69 ± 43 months. Overall, 48 (31%) TJAs showed signs of RCL, with 28 (27.2%) RCLs occurring after TKA compared with 20 after THA (38.5%). A significant difference regarding the incidence of RCL between the traditional DMARDs group (39 cases of RCL, 35%) and the biological DMARDs group (nine cases of RCL, 21%) (P = 0.026) was observed using the log-rank test. This was also true when using a time-dependent Cox regression with therapy as well as arthroplasty location (hip vs knee) as variables (P = 0.0447). CONCLUSION Biological DMARDs may reduce the incidence of aseptic loosening after TJA in patients with RA compared with traditional DMARDs. This effect seems to be more pronounced after TKA than THA.
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Affiliation(s)
- Markus M Schreiner
- Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Vienna, Austria
| | - Jennifer Straub
- Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Vienna, Austria
| | - Sebastian Apprich
- Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Vienna, Austria
| | - Kevin Staats
- Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Vienna, Austria
| | - Reinhard Windhager
- Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Vienna, Austria
| | - Daniel Aletaha
- Department of Rheumatology, Medical University of Vienna, Vienna, Austria
| | - Christoph Böhler
- Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Vienna, Austria
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Soltanihafshejani N, Bitter T, Verdonschot N, Janssen D. The effect of periprosthetic bone loss on the failure risk of tibial total knee arthroplasty. J Orthop Res 2024; 42:90-99. [PMID: 37292040 DOI: 10.1002/jor.25642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 05/02/2023] [Accepted: 06/07/2023] [Indexed: 06/10/2023]
Abstract
The effect of long-term periprosthetic bone loss on the process of aseptic loosening of tibial total knee arthroplasty (TKA) is subject to debate. Contradicting studies can be found in literature, reporting either bone resorption or bone formation before failure of the tibial tray. The aim of the current study was to investigate the effects of bone resorption on failure of tibial TKA, by simulating clinical postoperative bone density changes in finite element analysis (FEA) models and FEA models were created of two tibiae representing cases with good and poor initial bone quality which were subjected to a walking configuration and subsequently to a traumatic stumbling load. Bone failure was simulated using a crushable foam model incorporating progressive yielding. Repetitive loading under a level walking load did not result in failure of the periprosthetic bone in neither the good nor poor bone quality tibia at the baseline bone densities. When applying a stumble load, a collapse of the tibial reconstruction was noticed in the poor bone quality model. Incorporating postoperative bone loss led to a significant increase of the failure risk, particularly for the poor bone quality model in which subsidence of the tibial component was substantial. Our results suggest bone loss can lead to an increased risk of a collapse of the tibial component, particularly in case of poor bone quality at the time of surgery. The study also examined the probability of medial or lateral subsidence of the implant and aimed to improve clinical implications. The FEA model simulated plastic deformation of the bone and implant subsidence, with further validation required via mechanical experiments.
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Affiliation(s)
- Navid Soltanihafshejani
- Orthopaedic Research Laboratory, Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Thom Bitter
- Orthopaedic Research Laboratory, Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Nico Verdonschot
- Orthopaedic Research Laboratory, Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
- Laboratory for Biomechanical Engineering, Faculty of Engineering Technology, University of Twente, Enschede, The Netherlands
| | - Dennis Janssen
- Orthopaedic Research Laboratory, Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
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Karasavvidis T, Pagan Moldenhauer CA, Lustig S, Vigdorchik JM, Hirschmann MT. Definitions and consequences of current alignment techniques and phenotypes in total knee arthroplasty (TKA) - there is no winner yet. J Exp Orthop 2023; 10:120. [PMID: 37991599 PMCID: PMC10665290 DOI: 10.1186/s40634-023-00697-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 11/16/2023] [Indexed: 11/23/2023] Open
Abstract
Dissatisfaction following total knee arthroplasty (TKA) has been extensively documented and it was attributed to numerous factors. In recent years, significant focus has been directed towards implant alignment and stability as potential causes and solutions to this issue. Surgeons are now exploring a more personalized approach to TKA, recognizing the importance of thoroughly understanding each individual patient's anatomy and functional morphology. A more comprehensive preoperative analysis of alignment and knee morphology is essential to address the unresolved questions in knee arthroplasty effectively. The crucial task of determining the most appropriate alignment strategy for each patient arises, given the substantial variability in bone resection resulting from the interplay of phenotype and the alignment strategy chosen. This review aims to comprehensively present the definitions of different alignment techniques in all planes and discuss the consequences dependent on knee phenotypes.Level of evidence V.
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Affiliation(s)
- Theofilos Karasavvidis
- Adult Reconstruction and Joint Replacement Service, Department of Orthopaedic Surgery, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA.
| | - Cale A Pagan Moldenhauer
- Adult Reconstruction and Joint Replacement Service, Department of Orthopaedic Surgery, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
| | - Sébastien Lustig
- Department of Orthopaedic Surgery and Sports Medicine, Croix-Rousse Hospital, Lyon, 69004, France
| | - Jonathan M Vigdorchik
- Adult Reconstruction and Joint Replacement Service, Department of Orthopaedic Surgery, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
| | - Michael T Hirschmann
- Department of Orthopaedic Surgery and Traumatology, Kantonsspital Baselland, Bruderholz, CH-4101, Switzerland
- Department of Clinical Research, Research Group Michael T. Hirschmann, Regenerative Medicine & Biomechanics, University of Basel, Basel, CH-4001, Switzerland
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10
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Martinez R, Chen AF. Outcomes in revision knee arthroplasty: Preventing reoperation for infection Keynote lecture - BASK annual congress 2023. Knee 2023; 43:A5-A10. [PMID: 37524637 DOI: 10.1016/j.knee.2023.07.010] [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] [Indexed: 08/02/2023]
Abstract
Revision total knee arthroplasty (TKA) patients have a lower survival rate and lower post-surgical outcomes compared to primary TKA patients. Infection and aseptic loosening are the most common reasons for revision and re-revision TKAs, with infection accounting for nearly half of re-revision cases. To prevent infection, patient optimization addressing obesity, diabetes, malnutrition, and smoking cessation is crucial. Advancements in irrigation solutions, antibiotic-impregnated bone fillers, bacteriophage therapy, and electrochemical therapy hold promise for preventing infection. Technical strategies such as obtaining sufficient component fixation, joint line restoration, and using robot assistance may improve revision TKA outcomes. As the burden of revision TKA continues to rise, substantial efforts remain for mitigating future revision TKAs and their associated complications.
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Affiliation(s)
- Roxana Martinez
- Department of Orthopaedic Surgery & Rehabilitation, Howard University Hospital, Howard University College of Medicine, Washington, DC, USA
| | - Antonia F Chen
- Department of Orthopaedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
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Najafi F, Shahsavari H, Mortazavi SMJ, Khodayari S, Jaafarpour M, Zare Z. Factors affecting decision-making for knee arthroplasty in patients with osteoarthritis. Int J Orthop Trauma Nurs 2023; 49:101016. [PMID: 37003037 DOI: 10.1016/j.ijotn.2023.101016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 03/01/2023] [Accepted: 03/03/2023] [Indexed: 03/28/2023]
Abstract
OBJECTIVE Identifying factors affecting decision-making for knee arthroplasty in patients with knee osteoarthritis is critically important for pain relief, improving in knee function and reaching an optimal outcome. When decision-making is hurried or delayed, surgery may not occur in time, which complicates the surgery and increases its complications. This study was conducted to investigate the factors influencing decision-making for knee arthroplasty. METHODS This study is a qualitative study and inductive content analysis method. This study enrolled 22 patients undergoing knee arthroplasty selected through purposive sampling. Data were collected through semi-structured in-depth interviews and analyzed using inductive content analysis. RESULTS Data analysis yielded three categories: hope to return to normal life, encouragement and recommendations, and trust and assurance. CONCLUSION To make better treatment-related decisions and achieve better outcomes based on the patient's values and wishes, it is necessary for the treatment team to increase its interactions and establish stronger communication with patients to make their expectations more realistic and help them understand the risks. They should also make efforts to increase patients' knowledge about the advantages and disadvantages of surgery and clarify what is important to them in decision-making.
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Affiliation(s)
- Fatemeh Najafi
- Department of Medical Surgical Nursing, School of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, Iran; Department of Nursing, Faculty of Nursing and Midwifery, Ilam University of Medical Sciences, Ilam, Iran
| | - Hooman Shahsavari
- Department of Medical Surgical Nursing, School of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Mohammad Javad Mortazavi
- Joint Reconstruction Research Center (JRRC), Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
| | - Sajjad Khodayari
- Department of Critical Care Nursing, School of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, Iran
| | - Molouk Jaafarpour
- Department of Midwifery, Faculty of Nursing and Midwifery, Ilam University of Medical Sciences, Ilam, Iran
| | - Zahra Zare
- Department of Operating Room, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran.
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12
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Accelerometer-based portable navigation, a faster guide compared to computer-assisted navigation in bilateral total knee arthroplasty-a randomized controlled study. Knee Surg Sports Traumatol Arthrosc 2023; 31:786-792. [PMID: 34997248 DOI: 10.1007/s00167-021-06842-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 12/03/2021] [Indexed: 10/19/2022]
Abstract
PURPOSE There are limited studies in the literature comparing the alignment accuracy of the large console, imageless, computer-assisted navigation (CAN) and portable, hand-held, accelerometer-based navigation (ABN) in total knee arthroplasty (TKA). This study was aimed to compare the operative time, blood loss, radiological, clinical and functional outcomes between CAN- and ABN-guided bilateral TKA. METHODS From Jan 2016 to Dec 2017, 50 patients who underwent bilateral TKA were randomized to undergo either CAN-guided or ABN-guided TKA. Tourniquet time and blood loss were recorded, and intra-op complications were noted. Post-op radiological outcomes at 2 weeks were compared between the groups. The clinical and functional outcomes using the American Knee Society Scores (KSS) and Oxford Knee Score (OKS) were recorded pre-operatively and post-operatively at 3, 6, 12 months and at the end of the study with a minimum follow-up of 48 months. RESULTS Both groups were well-matched in terms of patient demographic parameters. The mean surgical time per knee was significantly lower in the ABN group (54.5 ± 5.6 min) compared to the CAN group (61.7 ± 13.7 min; p < 0.01). Mean blood loss per knee in the ABN group was 592.1 ± 245.3 mL compared to 682.8 ± 322.0 in the CAN group (p = 0.11). In the ABN group, the mean post-op mechanical axis was 1.2 ± 3.2° (vs 1.5 ± 2.2° in the CAN group, p 0.6), the frontal femoral angle was 88.8 ± 2.3° (vs 88.8 ± 1.8° in the CAN group, p 1.0) and frontal tibial angle was 90.1 ± 1.6° (vs 89.7 ± 1.1° in the CAN group, p 0.14). At 48 month follow-up, the mean functional KSS in the ABN group was 89.0 ± 5.7 (vs 88.1 ± 4.5 in the CAN group, p 0.37) and the mean OKS was 40.5 ± 2.8 (vs 39.6 ± 3.2 in the CAN group, p 0.12). CONCLUSION Portable, hand-held ABN offers alignment accuracy and functional outcomes in TKA similar to that with CAN, with a reduced duration of surgery. There was no advantage of either of the techniques in terms of clinical or functional outcomes at 48 month follow-up. LEVEL OF EVIDENCE 1.
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13
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The impact of different alignment strategies on bone cuts in total knee arthroplasty for varus knee phenotypes. Knee Surg Sports Traumatol Arthrosc 2023; 31:1840-1850. [PMID: 36811657 PMCID: PMC10089997 DOI: 10.1007/s00167-023-07351-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 02/10/2023] [Indexed: 02/24/2023]
Abstract
PURPOSE The purpose of this study was to visualise the influence of alignment strategy on bone resection in varus knee phenotypes. The hypothesis was that different amounts of bone resection would be required depending on the alignment strategy chosen. Through visualisation of the corresponding bone sections, it was hypothesised, it would be possible to assess which of the different alignment strategies would require the least amount of change to the soft tissues for the chosen phenotype, whilst still ensuring acceptable alignment of the components, and thus could be considered the most ideal alignment strategy. METHODS Simulations of the different alignment strategies (mechanical, anatomical, constrained kinematic and unconstrained kinematic) in relation to their bone resections were performed on five common exemplary varus knee phenotypes. VARHKA174° VARFMA87° VARTMA84°, VARHKA174° VARFMA90° NEUTMA87°, VARHKA174° NEUFMA93° VARTMA84°, VARHKA177° NEUFMA93° NEUTMA87° and VARHKA177° VALFMA96° VARTMA81°. The phenotype system used categorises knees based on overall limb alignment (i.e. hip knee angle) but also takes into account joint line obliquity (i.e. TKA and FMA) and has been applied in the global orthopaedic community since its introduction in 2019. The simulations are based on long-leg radiographs under load. It is assumed that a change of 1° in the alignment of the joint line corresponds to a displacement of the distal condyle by 1 mm. RESULTS In the most common phenotype VARHKA174° NEUFMA93° VARTMA84°, a mechanical alignment would result in an asymmetric elevation of the tibial medial joint line by 6 mm and a lateral distalisation of the femoral condyle by 3 mm, an anatomical alignment only by 0 and 3 mm, a restricted by 3 and 3 mm, respectively, whilst a kinematic alignment would result in no change in joint line obliquity. In the similarly common phenotype 2 VARHKA174° VARFMA90° NEUTMA87° with the same HKA, the changes are considerably less with only 3 mm asymmetric height change on one joint side, respectively, and no change in restricted or kinematic alignment. CONCLUSION This study shows that significantly different amounts of bone resection are required depending on the varus phenotype and the alignment strategy chosen. Based on the simulations performed, it can, therefore, be assumed that an individual decision for the respective phenotype is more important than the dogmatically correct alignment strategy. By including such simulations, the modern orthopaedic surgeon can now avoid biomechanically inferior alignments and still obtain the most natural possible knee alignment for the patient.
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Adamska O, Modzelewski K, Szymczak J, Świderek J, Maciąg B, Czuchaj P, Poniatowska M, Wnuk A. Robotic-Assisted Total Knee Arthroplasty Utilizing NAVIO, CORI Imageless Systems and Manual TKA Accurately Restore Femoral Rotational Alignment and Yield Satisfactory Clinical Outcomes: A Randomized Controlled Trial. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:medicina59020236. [PMID: 36837438 PMCID: PMC9963242 DOI: 10.3390/medicina59020236] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/17/2023] [Accepted: 01/25/2023] [Indexed: 01/28/2023]
Abstract
Background and objectives: The introduction of novel techniques in total knee arthroplasty (TKA) aiming to enhance outcomes and satisfaction of the procedure is constantly ongoing. In order to evidence a priority of one, we have conducted a randomized controlled trial with the aim of comparing patient-reported functional outcomes, radiographic outcomes and intraoperative measures between imageless (NAVIO and CORI), robotic-assisted (ra)- TKA (ra-TKA) and manual TKA (mTKA) for primary knee osteoarthritis (KOA). Materials and Methods: A total of 215 patients with the diagnosis of KOA of the knee were randomly assigned to one of the three groups: NAVIO (76 patients) or CORI (71 patients) robotic-assisted TKA, or manual technique (68 patients) TKA. The primary outcome (Knee Injury and Osteoarthritis Outcome Study [KOOS]), Visual Analogue Scale (VAS), Range of motion (ROM), femoral component rotational alignment and the secondary outcomes (surgery time, blood loss, complications, and revision at 12 months after surgery) were compared between three groups. KOOS and VAS were collected at particular follow up visits from each patient individually and ROM in flexion and extension was assessed during the physical examination. Femoral component rotational alignment was measured on the CT scan performed postoperatively utilizing the Berger's method. Statistical significance was set at p < 0.05. Results: Both the ra-TKA groups and mTKA group displayed significant improvements in the majority of the functional outcome scores at 12 months. Despite having more prominent surgery time (NAVIO: mean +44.5 min in comparison to mTKA and CORI: mean +38.5 min in comparison to mTKA), both NAVIO and CORI tend to achieve highly accurate femoral component rotational alignment with mean radiographic scores in NAVIO vs. CORI vs. mTKA of 1.48° vs. 1.33° vs. 3.15° and lower blood loss (NAVIO: 1.74; CORI: 1.51; mTKA: 2.32. Furthermore, the investigation revealed the significant difference in femoral component rotational alignment between mTKA-NAVIO and mTKA-CORI and significantly different KOOS scores in NAVIO vs. CORI vs. mTKA of 87.05 vs. 85.59 vs. 81.76. Furthermore, the KOOS analysis showed between group significant statistical differences, but did not reach minimal clinically significant difference. There were no differences in postoperative ROM and VAS. There were no differences in complications between groups. Conclusions: To achieve a successful TKA, the precise tool and individualised objective is of great importance. The results suggest satisfactory results after both ra-TKA methods and mTKA. Ra-TKA and mTKA stand for a safe and reliable treatment method for OA. Patients reported excellent alleviation in functional outcomes and the radiological results revealed that the better precision does not necessarily lead to a better outcome. Therefore, ra-TKA does not imply strong enough advantages in comparison to the manual method, especially in terms of cost-efficiency and surgical time.
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Affiliation(s)
- Olga Adamska
- Orthopedic and Rehabilitation Department, Medical University of Warsaw, 61 Żwirki i Wigury St., 02-091 Warsaw, Poland
- Correspondence:
| | - Krzysztof Modzelewski
- Orthopedic and Rehabilitation Department, Medical University of Warsaw, 61 Żwirki i Wigury St., 02-091 Warsaw, Poland
| | - Jakub Szymczak
- Orthopedic and Rehabilitation Department, Medical University of Warsaw, 61 Żwirki i Wigury St., 02-091 Warsaw, Poland
| | - Jakub Świderek
- Faculty of Medicine, Medical University of Bialystok, 1 Jana Kilińskiego St., 15-089 Bialystok, Poland
| | - Bartosz Maciąg
- Orthopedic and Rehabilitation Department, Medical University of Warsaw, 61 Żwirki i Wigury St., 02-091 Warsaw, Poland
| | - Paweł Czuchaj
- Orthopedic and Rehabilitation Department, Medical University of Warsaw, 61 Żwirki i Wigury St., 02-091 Warsaw, Poland
| | | | - Artur Wnuk
- Hospital in Ostrow Mazowiecka, 68 Dubois St., 07-300 Ostrów Mazowiecka, Poland
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Baek JH, Lee SC, Choi K, Nam CH. High rate of tibial post-fracture in highly cross-linked polyethylene compared to conventional polyethylene in posterior-stabilized total knee arthroplasty at a minimum 12-year follow-up. Knee Surg Sports Traumatol Arthrosc 2022; 30:4072-4077. [PMID: 35129642 DOI: 10.1007/s00167-022-06901-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 01/16/2022] [Indexed: 10/19/2022]
Abstract
PURPOSE The purpose of this study was to assess tibial post-fracture between highly cross-linked polyethylene (HXPE) and conventional polyethylene inserts in consecutive posterior-stabilized (PS) total knee arthroplasty (TKA) over a minimum 12-year follow-up period. METHODS Between January 2007 and June 2008, a consecutive series of 2446 primary TKAs was performed in 1478 patients at a single institution. The final cohort was classified into two groups (1559 in the HXPE group and 887 in the conventional group) based on the insert material used during the procedure. RESULTS The mean follow-up period was 13.1 years in the HXPE group and 13.4 years in the conventional group. All 16 cases of tibial post-fracture occurred in the HXPE group. This complication rate was 1.03%. The mean elapsed time from primary TKA to the diagnosis of post-fracture was 3.9 years (range 0.5-10.0 years). Ten cases required replacement with a thicker polyethylene insert, and six cases underwent tibial revision surgery. There were no cases of tibial post-fracture in the conventional group. CONCLUSION Tibial post-fracture is not a rare complication in PS TKA with HXPE. Therefore, the possibility of a tibial post-fracture should be considered if newly developed pain, acute subluxation, effusion, patellar clunking, or instability occurs in patients treated with PS Scorpio knee system TKA using an HXPE insert. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Ji-Hoon Baek
- Joint and Arthritis Research, Department of Orthopaedic Surgery, Himchan Hospital, 120 Sinmok-ro, Yangcheon-gu, Seoul, Republic of Korea
| | - Su Chan Lee
- Joint and Arthritis Research, Department of Orthopaedic Surgery, Himchan Hospital, 120 Sinmok-ro, Yangcheon-gu, Seoul, Republic of Korea
| | - Kyungwon Choi
- Joint and Arthritis Research, Department of Orthopaedic Surgery, Himchan Hospital, 120 Sinmok-ro, Yangcheon-gu, Seoul, Republic of Korea
| | - Chang Hyun Nam
- Joint and Arthritis Research, Department of Orthopaedic Surgery, Himchan Hospital, 120 Sinmok-ro, Yangcheon-gu, Seoul, Republic of Korea.
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Held MB, Gazgalis A, Neuwirth AL, Shah RP, Cooper HJ, Geller JA. Imageless robotic-assisted total knee arthroplasty leads to similar 24-month WOMAC scores as compared to conventional total knee arthroplasty: a retrospective cohort study. Knee Surg Sports Traumatol Arthrosc 2022; 30:2631-2638. [PMID: 33961067 DOI: 10.1007/s00167-021-06599-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 04/27/2021] [Indexed: 12/22/2022]
Abstract
PURPOSE Robotic-assisted total knee arthroplasty (RA-TKA) was introduced to improve limb alignment, component positioning, soft-tissue balance and to minimize surgical outliers. This study investigates perioperative outcomes, complications, and early patient-reported outcome measures (PROMs) of one imageless RA-TKA system compared to conventional method TKA (CM-TKA) at 24-month follow-up. METHODS This multi-surgeon retrospective cohort analysis compared 111 imageless RA-TKA patients to 110 CM-TKA patients (n = 221). Basic demographic information, intraoperative and postoperative data, and PROMs, including the functional score of the Knee Society Score (KSS-FS), The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), and the Short Form 12 Mental and Physical scores (SF-12M and P), were collected and recorded preoperatively, at 3-, 12- and 24-months postoperatively. Range of motion (ROM), estimated blood loss (EBL), surgical duration, and complications were also collected. RESULTS There were no baseline patient demographic differences between groups. EBL (240 vs. 190 mL, p < 0.001) and surgical duration (123 vs. 107 min, p < 0.001) were significantly greater in RA-TKA. There were no significant differences in postoperative complications, ROM, length of stay (LOS), and PROMs between cohorts at 3-, 12-, 24-months postoperatively. CONCLUSIONS Imageless RA-TKA is associated with greater EBL and surgical duration compared to CM-TKA. However, at 24-month follow-up, there were no significant differences in ROM, LOS, complications and PROMs between cohorts. Imageless robotic surgery leads to similar 24-month clinical outcomes as compared to CM-TKA. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Michael B Held
- Department of Orthopedic Surgery, Columbia University Medical Center, 630 West 168th Street, PH-11, New York, NY, 10032, USA.
| | - Anastasia Gazgalis
- Department of Orthopedic Surgery, Columbia University Medical Center, 630 West 168th Street, PH-11, New York, NY, 10032, USA
| | - Alexander L Neuwirth
- Department of Orthopedic Surgery, Columbia University Medical Center, 630 West 168th Street, PH-11, New York, NY, 10032, USA
| | - Roshan P Shah
- Department of Orthopedic Surgery, Columbia University Medical Center, 630 West 168th Street, PH-11, New York, NY, 10032, USA
| | - H John Cooper
- Department of Orthopedic Surgery, Columbia University Medical Center, 630 West 168th Street, PH-11, New York, NY, 10032, USA
| | - Jeffrey A Geller
- Department of Orthopedic Surgery, Columbia University Medical Center, 630 West 168th Street, PH-11, New York, NY, 10032, USA
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17
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Beckers L, Müller JH, Daxhelet J, Ratano S, Saffarini M, Aït-Si-Selmi T, Bonnin MP. Considerable inter-individual variability of tibial geometric ratios renders bone-implant mismatch unavoidable using off-the-shelf total knee arthroplasty: a systematic review and meta-analysis. Knee Surg Sports Traumatol Arthrosc 2021; 31:1284-1298. [PMID: 34075491 DOI: 10.1007/s00167-021-06623-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 05/21/2021] [Indexed: 01/25/2023]
Abstract
PURPOSE The purpose of this systematic review and meta-analysis was to investigate the variability in tibial geometric ratios among knees of different sexes and races to determine whether commercially-available tibial baseplates accommodate the morphologic diversity. The hypothesis was that anthropometric studies report considerable variability of tibial geometric ratios among sexes and races. METHODS This systematic review and meta-analysis was performed according to the preferred reporting items for systematic reviews and meta-analyses (PRISMA) criteria. Two authors independently conducted an electronic search using MEDLINE® and Embase® on 28 January 2021 for clinical studies reporting on tibial geometric ratios. Tibial geometric ratios, as reported by the clinical studies, were represented by plotting their means and two standard deviations for comparison to two symmetric and two asymmetric commercially-available tibial baseplates. RESULTS A total of 27 articles that reported on a combined total of 20,944 knees were eligible for data extraction. Variation in tibial aspect ratios was equal among sexes. The greatest variation in aspect ratio was observed among East Asians, followed by Caucasians, African-Americans, Indian and Middle Easterns. The variation in tibial asymmetry ratio was larger among men compared to women. The greatest variation in asymmetry ratio was observed among African-Americans, followed by Caucasians, East Asians, Indian and Middle Easterns. Bone-implant mismatch of > 3 mm overhang or > 4 mm under-coverage with four commercially-available tibial baseplates occurred in large proportions of knees due to variations in aspect ratio (in 17-100% of knees) and asymmetry ratio (in 7-100% of knees). CONCLUSION Anthropometric studies reported considerable inter-individual variability of tibial geometric ratios, which exceeded effects of sexual dimorphism and racial diversity. Bone-implant mismatch may be unavoidable in a large proportion of knees, when considering that a surgeon generally only uses one or a few TKA brands. These findings support the drive towards patient-specific implants to potentially achieve accurate bone-implant fit by implant customisation. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Lucas Beckers
- Centre Orthopédique Santy, Ramsay Santé, Hôpital Privé Jean Mermoz, Lyon, France
| | | | - Jeremy Daxhelet
- Centre Orthopédique Santy, Ramsay Santé, Hôpital Privé Jean Mermoz, Lyon, France
| | - Salvatore Ratano
- Centre Orthopédique Santy, Ramsay Santé, Hôpital Privé Jean Mermoz, Lyon, France
| | - Mo Saffarini
- ReSurg SA, Rue Saint-Jean 22, 1260, Nyon, Switzerland.
| | - Tarik Aït-Si-Selmi
- Centre Orthopédique Santy, Ramsay Santé, Hôpital Privé Jean Mermoz, Lyon, France
| | - Michel P Bonnin
- Centre Orthopédique Santy, Ramsay Santé, Hôpital Privé Jean Mermoz, Lyon, France
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