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Barahona M, Guzmán MA, Cartes S, Arancibia AE, Mora JE, Barahona MA, Palma D, Hinzpeter JR, Infante CA, Barrientos CN. Development of a Machine-Learning Model for Anterior Knee Pain After Total Knee Arthroplasty With Patellar Preservation Using Radiological Variables. J Arthroplasty 2024; 39:S171-S178. [PMID: 38364878 DOI: 10.1016/j.arth.2024.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 01/31/2024] [Accepted: 02/05/2024] [Indexed: 02/18/2024] Open
Abstract
BACKGROUND Anterior knee pain (AKP) following total knee arthroplasty (TKA) with patellar preservation is a common complication that significantly affects patients' quality of life. This study aimed to develop a machine-learning model to predict the likelihood of developing AKP after TKA using radiological variables. METHODS A cohort of 131 anterior stabilized TKA cases (105 patients) without patellar resurfacing was included. Patients underwent a follow-up evaluation with a minimum 1-year follow-up. The primary outcome was AKP, and radiological measurements were used as predictor variables. There were 2 observers who made the radiological measurement, which included lower limb dysmetria, joint space, and coronal, sagittal, and axial alignment. Machine-learning models were applied to predict AKP. The best-performing model was selected based on accuracy, precision, sensitivity, specificity, and Kappa statistics. Python 3.11 with Pandas and PyCaret libraries were used for analysis. RESULTS A total of 35 TKA had AKP (26.7%). Patient-reported outcomes were significantly better in the patients who did not have AKP. The Gradient Boosting Classifier performed best for both observers, achieving an area under the curve of 0.9261 and 0.9164, respectively. The mechanical tibial slope was the most important variable for predicting AKP. The Shapley test indicated that high/low mechanical tibial slope, a shorter operated leg, a valgus coronal alignment, and excessive patellar tilt increased AKP risk. CONCLUSIONS The results suggest that global alignment, including sagittal, coronal, and axial alignment, is relevant in predicting AKP after TKA. These findings provide valuable insights for optimizing TKA outcomes and reducing the incidence of AKP.
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Affiliation(s)
- Maximiliano Barahona
- Orthopedics Department of Hospital Clinico Universidad de Chile, Santiago, Chile
| | - Mauricio A Guzmán
- Radiological Department of Hospital Clinico Universidad de Chile, Santiago, Chile
| | - Sebastian Cartes
- Clinical Innovation Department at Clinica Las Condes, Santiago, Chile
| | | | - Javier E Mora
- Clinical Innovation Department at Clinica Las Condes, Santiago, Chile
| | - Macarena A Barahona
- Advanced Clinical Research Department at Hospital Clinico Universidad de Chile, Santiago, Chile
| | - Daniel Palma
- Orthopedics Department of Hospital Clinico Universidad de Chile, Santiago, Chile
| | - Jaime R Hinzpeter
- Orthopedics Department of Hospital Clinico Universidad de Chile, Santiago, Chile
| | - Carlos A Infante
- Orthopedics Department of Hospital Clinico Universidad de Chile, Santiago, Chile
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Pasurka M, Falck T, Kubach J, Simon M, Söllner S, Strobel D, Perl M, Betsch M. Comparison of In Vivo Stiffness of Tendons Commonly Used for Anterior Cruciate Ligament Reconstruction - A Shear Wave Elastography Study. Acad Radiol 2024; 31:3297-3305. [PMID: 38378326 DOI: 10.1016/j.acra.2024.01.037] [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: 01/08/2024] [Revised: 01/25/2024] [Accepted: 01/27/2024] [Indexed: 02/22/2024]
Abstract
RATIONALE AND OBJECTIVES There are currently no studies investigating the in vivo stiffness of the most commonly used autografts for anterior cruciate ligament reconstruction (ACLR) using Shear wave elastography (SWE). We hypothesize that there are differences regarding the elastic properties between the three tendons commonly used for ACLR and that they are influenced by patient-related factors. MATERIALS AND METHODS 80 healthy subjects (25 females, 55 males, age: 25.33 ± 4.76 years, BMI: 23.76 ± 3.14 kg/m2, 40 semiprofessional athletes, athlete group [AG], age: 25.51 [19-29]; 40 healthy controls, control group [CG], age: 25.50 [20-29]) were recruited as participants. In addition to patient reported outcome scores, every participant underwent a standardized multimodal ultrasound protocol consisting of B-mode-ultrasound (B-US), Color Doppler-ultrasound (CD-US) and a SWE examination of the bilateral quadriceps tendon (QT), patellar tendon (PT) and semitendinosus tendon (ST). RESULTS The highest shear wave velocity (SWV) were observed in ST (4.88 (4.35-5.52) m/s, ST vs QT, p = 0.005; ST vs PT, p < 0.001) followed by QT (4.61 (4.13-5.26) m/s, QT vs PT, p < 0.001) and PT (3.73 (3.30-4.68) m/s). Median QT, PT and ST stiffness was significantly higher in AG compared to CG. Male subjects tend to have stiffer QT and PT than female subjects. Positive correlation with SWV was obtained for age and activity level. CONCLUSION There are significant differences regarding in vivo tendon stiffness between the most frequently used autograft tendon options for ACLR. The quantitative information obtained by SWE could be of particular interest for graft choice for ACLR.
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Affiliation(s)
- Mario Pasurka
- Department of Orthopaedics and Trauma Surgery, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Krankenhausstrasse 12, 91054 Erlangen, Germany.
| | - Theo Falck
- Department of Orthopaedics and Trauma Surgery, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Krankenhausstrasse 12, 91054 Erlangen, Germany
| | - Joshua Kubach
- Department of Orthopaedics and Trauma Surgery, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Krankenhausstrasse 12, 91054 Erlangen, Germany
| | - Michael Simon
- Department of Orthopaedics and Trauma Surgery, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Krankenhausstrasse 12, 91054 Erlangen, Germany
| | - Stefan Söllner
- Department of Orthopaedics and Trauma Surgery, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Krankenhausstrasse 12, 91054 Erlangen, Germany
| | - Deike Strobel
- Department of Medicine 1, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Ulmenweg 18, 91054 Erlangen, Germany
| | - Mario Perl
- Department of Orthopaedics and Trauma Surgery, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Krankenhausstrasse 12, 91054 Erlangen, Germany
| | - Marcel Betsch
- Department of Orthopaedics and Trauma Surgery, University Hospital of Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Krankenhausstrasse 12, 91054 Erlangen, Germany
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Alamino LP, Garabano G, Pesciallo CÁ, Del Sel H. Bilateral simultaneous total knee arthroplasty with and without patellar resurfacing. A prospective single surgeon series with a minimum follow-up of 7 years. Knee Surg Relat Res 2024; 36:21. [PMID: 38812052 PMCID: PMC11138002 DOI: 10.1186/s43019-024-00225-6] [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: 01/03/2024] [Accepted: 05/19/2024] [Indexed: 05/31/2024] Open
Abstract
BACKGROUND Total knee arthroplasty (TKA) is the most effective treatment for end-stage adult knee osteoarthritis, but it has been reported that patient satisfaction may vary. A malfunction of the patellofemoral joint may produce anterior knee pain (AKP) for several reasons. While some surgeons systematically resurface the patella despite the risk of potential complications such as fracture, loosening, or wear of the patella, others prefer to preserve it to reduce AKP and revision rates. This study aimed to evaluate whether patellar resurfacing had better clinical and functional outcomes, complications, and revision rates in patients undergoing simultaneous bilateral total knee arthroplasty. METHODS We conducted a prospective cohort study, including patients who underwent bilateral simultaneous TKA in which the patella was replaced in one knee and preserved in the other, with a minimum follow-up of 7 years. We assessed clinical and functional outcomes with the Knee Society Score (KSS) and Visual Analogue Scale (VAS); complications and revision rates were also registered. RESULTS The final series consisted of 43 patients with 86 knee arthroplasties. After a mean of 7.6 years of follow-up, no significant differences were found regarding KSS (clinical: 82.8 ± 7.4 versus 83.2 ± 3.4, p = 0.92; functional 89.1 ± 8.2: versus 90.4 ± 6.8; p = 0.99), VAS (2.0 ± 0.9 versus 1.8 ± 1.0; p = 0.84), complications (10.5% versus 8.1%; p = 0.57), or revision rates (2.3% versus 2.3%; p = 0.99) when comparing patellar resurfacing versus retention. CONCLUSION In the context of total knee arthroplasty, patellar replacement did not demonstrate statistically significant differences concerning patellar retention in clinical nor functional outcomes, AKP, complications, or revision rates after a minimum of 7 years of follow-up.
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Affiliation(s)
- Leonel Perez Alamino
- Department of Orthopaedics and Traumatology, British Hospital of Buenos Aires, Perdriel 74, C1280 AEB, Buenos Aires, Argentina.
| | - German Garabano
- Department of Orthopaedics and Traumatology, British Hospital of Buenos Aires, Perdriel 74, C1280 AEB, Buenos Aires, Argentina
| | - Cesar Ángel Pesciallo
- Department of Orthopaedics and Traumatology, British Hospital of Buenos Aires, Perdriel 74, C1280 AEB, Buenos Aires, Argentina
| | - Hernán Del Sel
- Department of Orthopaedics and Traumatology, British Hospital of Buenos Aires, Perdriel 74, C1280 AEB, Buenos Aires, Argentina
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Cheppalli NS, Purudappa PP, Price R, Kolwadkar Y, Metikala S. Isolated lateral-sided knee pain in total knee arthroplasty. A review. Orthop Rev (Pavia) 2024; 16:93014. [PMID: 38505137 PMCID: PMC10950199 DOI: 10.52965/001c.93014] [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: 07/10/2023] [Accepted: 01/08/2024] [Indexed: 03/21/2024] Open
Abstract
Isolated lateral-sided knee pain is a unique problem following total knee arthroplasty (TKA). Reported causes include soft tissue impingement against extruded cement, an overhanging tibial tray, remnant osteophytes rubbing against the iliotibial band (ITB), popliteal tendon impingement, fabella syndrome, and synovial tissue impingement in the lateral gutter. In addition, iliotibial band traction syndrome secondary to guided motion Bi-cruciate stabilizing knee arthroplasty has been recognized as a new clinical entity. Initial work up should include ruling out the most common causes of painful TKA including infection, aseptic loosening, and instability. Radiographs and CT scan are utilized to identify potential source of pain. Ultrasound evaluation (with elicited probe tenderness) can increase diagnostic accuracy. Ultrasound guided local anesthetic injections can confirm the source of pain. Anti-inflammatory medications, physical therapy with ITB stretches, and therapeutic local steroid injections are initial treatment modalities. Satisfactory resolution of symptoms may require surgical intervention directed at the specific cause and may avoid the morbidity associated with revision TKA.
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Affiliation(s)
| | | | - Ryan Price
- Orthopedic Surgery University of New Mexico School of Medicine
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Feng H, Feng ML, Cheng JB, Zhang X, Tao HC. Meta-analysis of factors influencing anterior knee pain after total knee arthroplasty. World J Orthop 2024; 15:180-191. [PMID: 38464355 PMCID: PMC10921178 DOI: 10.5312/wjo.v15.i2.180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/20/2023] [Accepted: 01/22/2024] [Indexed: 02/07/2024] Open
Abstract
BACKGROUND Total knee arthroplasty (TKA) is a mature procedure recommended for correcting knee osteoarthritis deformity, relieving pain, and restoring normal biomechanics. Although TKA is a successful and cost-effective procedure, patient dissatisfaction is as high as 50%. Knee pain after TKA is a significant cause of patient dissatisfaction; the most common location for residual pain is the anterior region. Between 4% and 40% of patients have anterior knee pain (AKP). AIM To investigate the effect of various TKA procedures on postoperative AKP. METHODS We searched PubMed, EMBASE, and Cochrane from January 2000 to September 2022. Randomized controlled trials with one intervention in the experimental group and no corresponding intervention (or other interventions) in the control group were collected. Two researchers independently read the title and abstract of the studies, preliminarily screened the articles, and read the full text in detail according to the selection criteria. Conflicts were resolved by consultation with a third researcher. And relevant data from the included studies were extracted and analyzed using Review Manager 5.4 software. RESULTS There were 25 randomized controlled trials; 13 were comparative studies with or without patellar resurfacing. The meta-analysis showed no significant difference between the experimental and control groups (P = 0.61). Six studies were comparative studies of circumpatellar denervation vs non-denervation, divided into three subgroups for meta-analysis. The two-subgroup meta-analysis showed no significant difference between the experimental and the control groups (P = 0.31, P = 0.50). One subgroup meta-analysis showed a significant difference between the experimental and control groups (P = 0.001). Two studies compared fixed-bearing TKA and mobile-bearing TKA; the results meta-analysis showed no significant difference between the experimental and control groups (P = 0.630). Two studies compared lateral retinacular release vs non-release; the meta-analysis showed a significant difference between the experimental and control groups (P = 0.002); two other studies compared other factors. CONCLUSION Patellar resurfacing, mobile-bearing TKA, and fixed-bearing TKA do not reduce the incidence of AKP. Lateral retinacular release can reduce AKP; however, whether circumpatellar denervation can reduce AKP is controversial.
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Affiliation(s)
- Hui Feng
- Department of Orthopaedic Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Ming-Li Feng
- Department of Orthopaedic Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Jing-Bo Cheng
- Department of Orthopaedic Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Xiang Zhang
- Department of Orthopaedic Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Hai-Cheng Tao
- Department of Orthopaedic Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
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Barahona M, Barrientos C, Alegría A, Barahona MA, Navarro T, Hinzpeter J, Palet M, Zamorano Á, Catalán J, Infante C. Anterior knee pain and sit-up tests predicts patients' satisfaction and improvement in quality of life after anterior stabilized total knee replacement without patellar resurfacing. J Exp Orthop 2023; 10:73. [PMID: 37493976 PMCID: PMC10371966 DOI: 10.1186/s40634-023-00641-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 07/18/2023] [Indexed: 07/27/2023] Open
Abstract
PURPOSE The purpose of this study was to assess patient satisfaction and identify risk factors for dissatisfaction after anterior stabilised conventional total knee arthroplasty (TKA) without patellar resurfacing, using the Goodman score. METHODS We conducted a cross-sectional study using data from our institutional database from 1 January 2018 to 1 March 2021. Patients who underwent TKA with the Vanguard® Cruciate Retaining Anterior Stabilized Knee System (Zimmer Biomet, Warsaw, Indiana, USA) without patellar replacement were included. Patients with other bearing surfaces (posterior stabilised or medial congruent) or diagnosed with infection or instability were excluded. Patients' reported outcomes, body mass index (BMI), passive range of motion, the timed up-and-go test, sit-up test, and algometry were assessed. Patients were also asked if they had anterior knee pain. Satisfaction was assessed using the Goodman scale, and logistic multivariate regression was used to identify variables associated with dissatisfaction and perceived improvement in quality of life. RESULTS A total of 131 TKA patients were included in the study. The median satisfaction score was 100 (interquartile range [IQR], 87.5 to 100), with the 75-point threshold at the 90th percentile according to Section A of Goodman. Section B of Goodman showed that 113 TKA patients (86.26%) reported "great improvement" or "more than I ever dreamed." Multivariate logistic regression revealed that anterior knee pain (OR 5.16, 95% CI 1.24 to 21.39), the sit-up test (OR 0.63, 95% CI 0.49 to 0.81), and BMI (OR 0.84, 95% CI 0.70 to 0.99) were significantly associated with patient dissatisfaction and a worse perceived improvement in quality of life. The receiver operating characteristics curve for the models had areas under the curve of 0.83 (95% CI 0.69 to 0.97) and 0.82 (95% CI 0.70 to 0.94), respectively. CONCLUSION Anterior stabilised TKA without patellar resurfacing can achieve 90% satisfaction and 86% improvement in quality of life. To improve these results, it is essential to prevent and treat anterior knee pain and enhance quadriceps strength. LEVEL OF EVIDENCE Level III (retrospective cohort study).
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Affiliation(s)
- Maximiliano Barahona
- Orthopaedic Department at Hospital Clinico Universidad de Chile, 999 Carlos Lorca Tobar Street, 3Rd Floor, Office 351. Independencia, Santiago, Chile.
| | - Cristian Barrientos
- Orthopaedic Department at Hospital Clinico Universidad de Chile, 999 Carlos Lorca Tobar Street, 3Rd Floor, Office 351. Independencia, Santiago, Chile
| | - Anselmo Alegría
- Orthopaedic Department at Hospital Clinico Universidad de Chile, 999 Carlos Lorca Tobar Street, 3Rd Floor, Office 351. Independencia, Santiago, Chile
| | - Macarena A Barahona
- Orthopaedic Department at Hospital Clinico Universidad de Chile, 999 Carlos Lorca Tobar Street, 3Rd Floor, Office 351. Independencia, Santiago, Chile
| | - Tomas Navarro
- Orthopaedic Department at Hospital Clinico Universidad de Chile, 999 Carlos Lorca Tobar Street, 3Rd Floor, Office 351. Independencia, Santiago, Chile
| | - Jaime Hinzpeter
- Orthopaedic Department at Hospital Clinico Universidad de Chile, 999 Carlos Lorca Tobar Street, 3Rd Floor, Office 351. Independencia, Santiago, Chile
| | - Miguel Palet
- Orthopaedic Department at Hospital Clinico Universidad de Chile, 999 Carlos Lorca Tobar Street, 3Rd Floor, Office 351. Independencia, Santiago, Chile
| | - Álvaro Zamorano
- Orthopaedic Department at Hospital Clinico Universidad de Chile, 999 Carlos Lorca Tobar Street, 3Rd Floor, Office 351. Independencia, Santiago, Chile
| | - Jaime Catalán
- Orthopaedic Department at Hospital Clinico Universidad de Chile, 999 Carlos Lorca Tobar Street, 3Rd Floor, Office 351. Independencia, Santiago, Chile
| | - Carlos Infante
- Orthopaedic Department at Hospital Clinico Universidad de Chile, 999 Carlos Lorca Tobar Street, 3Rd Floor, Office 351. Independencia, Santiago, Chile
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Spencer SJ, Jamal B, Abram SGF, Kane N, Mohammed A. Patella Denervation With Circumferential Electrocautery in Primary Knee Arthroplasty: A Randomized Controlled Trial. J Arthroplasty 2023; 38:1057-1062. [PMID: 36858129 DOI: 10.1016/j.arth.2023.02.062] [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: 10/29/2022] [Revised: 02/19/2023] [Accepted: 02/21/2023] [Indexed: 03/03/2023] Open
Abstract
BACKGROUND The aim of this study was to investigate the clinical effectiveness of patella rim electrocautery "denervation" versus no denervation in patients undergoing total knee arthroplasty (TKA). METHODS We conducted a single-center, double-blind randomized controlled trial. Patients aged 40 years or older, due to undergo a TKA who did not have patella resurfacing (usual care) were randomized with or without circumferential patella electrocautery. This was undertaken according to a randomly generated sequence of treatment allocation that was placed into numbered, sealed opaque envelopes. Participants were blinded to treatment allocation. There was no crossover. The primary outcome was Oxford Knee Score at 1 year postoperatively. Secondary outcomes were Bartlett Patella Score, Western Ontario and McMaster Universities Arthritis Index (WOMAC), and 12-Item Short Form Survey. Linear regression analyses were performed with adjustments by age, sex, and baseline (preoperative) scores. There were 142 participants recruited, of which 49 (35%) were allocated to the denervation intervention. Recruitment was stopped early when interim statistical analyses confirmed adequate numbers in both groups despite an imbalance in early treatment allocation rates due to the randomization method. The mean patient age was 71 years (range, 50 to 85) and 51% (n = 74) were women. RESULTS No difference in Oxford Knee Score was detected at 1 year (mean difference [MD] 1.87; 95% confidence interval [CI] -1.28 to 5.03). No difference was detected in Bartlett Patella Score (MD 0.490; 95% CI -1.61 to 2.59) or 12-Item Short Form Survey (MD 0.196; 95% CI -2.54 to 2.93). A statistically significant difference in WOMAC was detected, but at a level less than the minimal clinically important difference for WOMAC (MD 4.79; 95% CI 1.05 to 8.52). CONCLUSION No clinically relevant benefit was detected from patella rim electrocautery in patients undergoing TKA who did not have patella resurfacing (including no benefit in terms of anterior knee pain). This treatment is therefore not recommended for clinical practice. LEVEL OF EVIDENCE Level 1.
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Affiliation(s)
- Simon J Spencer
- Queen Elizabeth University Hospital, Glasgow, United Kingdom
| | - Bilal Jamal
- Queen Elizabeth University Hospital, Glasgow, United Kingdom
| | - Simon G F Abram
- Queen Elizabeth University Hospital, Glasgow, United Kingdom; Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom
| | - Nicholas Kane
- Queen Elizabeth University Hospital, Glasgow, United Kingdom
| | - Aslam Mohammed
- Queen Elizabeth University Hospital, Glasgow, United Kingdom
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Kebbach M, Geier A, Darowski M, Krueger S, Schilling C, Grupp TM, Bader R. Computer-based analysis of different component positions and insert thicknesses on tibio-femoral and patello-femoral joint dynamics after cruciate-retaining total knee replacement. Knee 2023; 40:152-165. [PMID: 36436384 DOI: 10.1016/j.knee.2022.11.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 08/29/2022] [Accepted: 11/03/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND Positioning of the implant components and tibial insert thickness constitute critical aspects of total knee replacement (TKR) that influence the postoperative knee joint dynamics. This study aimed to investigate the impact of implant component positioning (anterior-posterior and medio-lateral shift) and varying tibial insert thickness on the tibio-femoral (TF) and patello-femoral (PF) joint kinematics and contact forces after cruciate-retaining (CR)-TKR. METHOD A validated musculoskeletal multibody simulation (MMBS) model with a fixed-bearing CR-TKR during a squat motion up to 90° knee flexion was deployed to calculate PF and TF joint dynamics for varied implant component positions and tibial insert thicknesses. Evaluation was performed consecutively by comparing the respective knee joint parameters (e.g. contact force, quadriceps muscle force, joint kinematics) to a reference implant position. RESULTS The PF contact forces were mostly affected by the anterior-posterior as well as medio-lateral positioning of the femoral component (by 3 mm anterior up to 31 % and by 6 mm lateral up to 14 %). TF contact forces were considerably altered by tibial insert thickness (24 % in case of + 4 mm increase) and by the anterior-posterior position of the femoral component (by 3 mm posterior up to 16 %). Concerning PF kinematics, a medialised femoral component by 6 mm increased the lateral patellar tilt by more than 5°. CONCLUSIONS Our results indicate that regarding PF kinematics and contact forces the positioning of the femoral component was more critical than the tibial component. The positioning of the femoral component in anterior-posterior direction on and PF contact force was evident. Orthopaedic surgeons should strictly monitor the anterior-posterior as well as the medio-lateral position of the femoral component and the insert thickness.
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Affiliation(s)
- Maeruan Kebbach
- Department of Orthopaedics, Rostock University Medical Center, Germany.
| | - Andreas Geier
- Department of Orthopaedics, Rostock University Medical Center, Germany; Department of Modern Mechanical Engineering, Waseda University, Tokyo, Japan
| | - Martin Darowski
- Department of Orthopaedics, Rostock University Medical Center, Germany
| | - Sven Krueger
- Aesculap AG, Research and Development, Tuttlingen, Germany
| | | | - Thomas M Grupp
- Aesculap AG, Research and Development, Tuttlingen, Germany; Ludwig Maximilians University Munich, Department of Orthopaedic Surgery, Physical Medicine and Rehabilitation, Campus Grosshadern, Munich, Germany
| | - Rainer Bader
- Department of Orthopaedics, Rostock University Medical Center, Germany
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Ji X, Huang X, Zhang Y, Zhao M, Liu Y, Cheng Y. Peripheral patellar denervation has a better effect in reducing postoperative anterior knee pain than patellar resurfacing in TKA. Medicine (Baltimore) 2022; 101:e31584. [PMID: 36397397 PMCID: PMC9666178 DOI: 10.1097/md.0000000000031584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Patellar resurfacing (PR) and peripheral patellar denervation (PD) are common surgical treatments for knee osteoarthritis (KOA) in total knee arthroplasty (TKA). The aim of study was to compare preventive effect on postoperative anterior knee pain (AKP) between PR and peripheral PD in TKA. A total of 202 patients who underwent unilateral TKA were randomized into 3 groups: T, TPD, and TPR. Patients in T group received simple TKA, patients in TPD group received TKA combined PD while patients in TPR group received TKA combined PR. Incidence, intensity, and presentation time of AKP and clinical outcomes were evaluated at 3, 6, 9, 12, 18, and 24 months postoperatively. The incidence of AKP was significantly lower and the intensity of AKP and patients' satisfaction score were significantly better at 3 months after surgery in group TPD and TPR compared with group T. Compared with group TPR, the intensity of AKP was significantly better at 3 months after surgery in group TPD. There were no significant difference in Oxford knee score, range of motion (ROM), patellar score, knee society score (KSS) and activities of daily living (ADL) score among 3 groups in the follow-up period. Both PD and PR can effectively reduce the intensity and incidence of AKP after TKA and improve patients' satisfaction at 3 months after TKA. Additionally, PD is more effective on alleviating AKP than PR.
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Affiliation(s)
- Xiaohui Ji
- Department of Orthopedics, Cangzhou Hospital of Integrated TCM-WM, Cangzhou, Hebei, P.R. China
| | - Xiaodan Huang
- Department of Orthopedics, the Third Hospital of Hebei Medical University, Hebei, P.R. China
| | - Yingying Zhang
- Department of pain, the Third Hospital of Hebei Medical University, Hebei, P.R. China
| | - Ming Zhao
- Department of Orthopedics, the Third Hospital of Hebei Medical University, Hebei, P.R. China
| | - Yaming Liu
- Department of pain, the Third Hospital of Hebei Medical University, Hebei, P.R. China
| | - Yanxin Cheng
- Department of pain, the Third Hospital of Hebei Medical University, Hebei, P.R. China
- *Correspondence: Yanxin Cheng, Department of pain, the Third Hospital of Hebei Medical University, NO.139 Ziqiang Road, Shijiazhuang 050051, P.R. China (e-mail: )
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Xu J, Li L, Fu J, Xu C, Ni M, Chai W, Hao L, Zhang G, Chen J. Early Clinical and Radiographic Outcomes of Robot-Assisted Versus Conventional Manual Total Knee Arthroplasty: A Randomized Controlled Study. Orthop Surg 2022; 14:1972-1980. [PMID: 35848154 PMCID: PMC9483055 DOI: 10.1111/os.13323] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 05/09/2022] [Accepted: 05/13/2022] [Indexed: 12/28/2022] Open
Abstract
Objective Robot‐assisted surgery has been promoted worldwide in recent years. The development of a domestic orthopaedic robot and its clinical application are therefore of great significance. This study aimed to compare the early clinical and radiographic outcomes of domestic robot‐assisted total knee arthroplasty (RA‐TKA) with conventional manual total knee arthroplasty (CM‐TKA). Methods A total of 77 patients who underwent primary single‐sided TKA from June to December 2020 were prospectively enrolled; resulting in the inclusion of 72 patients. The patients were randomly divided into the RA‐TKA group (37 cases, with TKA being assisted by the Yuanhua Orthopaedic Robotic System) and the CM‐TKA group (35 cases, with TKA being performed using conventional tools). Knee function was evaluated by the knee range of motion (ROM), the American Knee Society Score (KSS), and the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). Postoperative radiographic results were evaluated by full‐length weight‐bearing X‐rays of the lower limb and anteroposterior and lateral X‐rays of the knee were obtained preoperatively and at 90 days postoperative. The operative duration, blood loss, postoperative knee function, radiographic outcomes, and incidence of complications were compared by Student's t‐test, Mann–Whitney U test, or chi‐square test. Serum levels of inflammatory markers before the operation and 1, 3, and 30 days after the operation were recorded and compared between the two groups. Results The operation was significantly longer in the RA‐TKA group than in the CM‐TKA group (154.3 vs 115.2 min, p < 0.001). There was no significant difference in blood loss (933 vs 863 ml, p = 0.519) between the two groups. The knee ROM, KSS, and WOMAC were significantly improved in both groups 90 days after the operation compared with before the operation (p < 0.05), but there were no significant differences between the two groups (p > 0.05). The incidence of postoperative deep vein thrombosis was not statistically different between the two groups. In the radiographic findings at 90 days postoperatively we found the frequency of lateral tibial component (LTC) angle outliers was significantly lower in the RA‐TKA group (3.0% vs 29.4%, p = 0.003). The neutrophil‐to‐lymphocyte ratio (NLR) was significantly lower in the RA‐TKA group than in the CM‐TKA group on day 1 after surgery (9.9 vs 12.7, p = 0.024). Conclusions RA‐TKA requires more time than CM‐TKA, which may be related to the learning curve and intraoperative registration. The short‐term postoperative knee functional outcomes had no differences between the two groups, and RA‐TKA improved the accuracy of tibial component alignment. Further follow‐up studies are required to investigate the long‐term outcomes.
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Affiliation(s)
- Jiazheng Xu
- Medical School of Chinese PLA, Beijing, China.,Department of Orthopeadics, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Liangliang Li
- Medical School of Chinese PLA, Beijing, China.,Department of Orthopeadics, The First Medical Centre, Chinese PLA General Hospital, Beijing, China.,Department of Orthopeadics, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Jun Fu
- Department of Orthopeadics, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Chi Xu
- Department of Orthopeadics, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Ming Ni
- Department of Orthopeadics, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Wei Chai
- Department of Orthopeadics, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Libo Hao
- Department of Orthopeadics, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Guoqiang Zhang
- Department of Orthopeadics, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Jiying Chen
- Department of Orthopeadics, The First Medical Centre, Chinese PLA General Hospital, Beijing, China
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11
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Deroche E, Batailler C, Swan J, Sappey-Marinier E, Neyret P, Servien E, Lustig S. No difference between resurfaced and non-resurfaced patellae with a modern prosthesis design: a prospective randomized study of 250 total knee arthroplasties. Knee Surg Sports Traumatol Arthrosc 2022; 30:1025-1038. [PMID: 33661323 DOI: 10.1007/s00167-021-06521-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 02/22/2021] [Indexed: 12/21/2022]
Abstract
PURPOSE Despite numerous well-conducted studies and meta-analyses, the management of the patella during total knee arthroplasty (TKA) remains controversial. The aim of our study was to compare the clinical and radiological outcomes between patients with and without patellar resurfacing and to determine the influence of resurfacing on patellar tracking with a "patella-friendly" prosthesis. METHODS A single-centered prospective randomized controlled study was performed between April 2017 and November 2018. Two hundred and forty-five consecutive patients (250 knees) scheduled for TKA were randomized for patellar resurfacing or patella non-resurfacing. All patients received the same total knee prosthesis and were evaluated clinically and radiologically, including the International Knee Society Score (KSS knee and function), Forgotten Joint Score (FJS), anterior knee pain (AKP), pain when climbing stairs, patellar tilt, and patellar translation. RESULTS Two hundred and twenty-nine knees were available for clinical evaluation and 221 knees for radiographic analysis. The revision rate for patellofemoral cause was 3.1% (7 cases) with no difference between the groups (p = 0.217). There was no difference in survival rate between patellar resurfacing (88.3%) and non-resurfacing (85.3%) after 24 months (p = 0.599). There were no differences in KSS functional component (p = 0.599), KSS knee component (p = 0.396), FJS (p = 0.798), and AKP (p = 0.688) at a mean follow-up of 18 months. There was twice as much stair pain for the non-resurfacing group (17.1% versus 8.5%) (p = 0.043). There was patellar tilt in 43% of resurfaced knees (n = 50/116) versus 29% in non-resurfaced knees (n = 30/105) (p = 0.025); however, there was more patellar translation in the non-resurfaced group (21.0% versus 7.8%) (p < 0.001). There were no specific complications attributed to the patellar resurfacing procedure. There were four secondary patellar resurfacing procedures (3.6%) in the non-resurfaced group after a mean of 10 ± 7 months (1-17) postoperatively. CONCLUSION There is no superiority of patellar resurfacing or non-resurfacing in terms of clinical or radiological outcomes at mid-term. Secondary patellar resurfacing is rare. There is not enough evidence to recommend systematic patellar resurfacing with a "patella-friendly" prosthesis.
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Affiliation(s)
- Etienne Deroche
- Orthopaedic Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France.
| | - Cécile Batailler
- Orthopaedic Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France
| | - John Swan
- Orthopaedic Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France
| | - Elliot Sappey-Marinier
- Orthopaedic Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France
| | | | - Elvire Servien
- Orthopaedic Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France.,LIBM-EA 7424, Interuniversity Laboratory of Biology of Mobility, Claude Bernard Lyon 1 University, Lyon, France
| | - Sébastien Lustig
- Orthopaedic Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France.,Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406, 69622, Lyon, France
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12
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Qin Y, Pu C, Zhou Y, Yu J, Tang J. Influence of patellar denervation on anterior knee pain and knee function following total knee replacement: A systematic review and meta-analysis. ANZ J Surg 2021; 91:E690-E695. [PMID: 34291537 DOI: 10.1111/ans.17078] [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: 06/03/2021] [Revised: 07/03/2021] [Accepted: 07/06/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Previous studies have reached mixed results regarding the effects of patellar denervation with electrocautery (PD) on total knee replacement (TKR). This systematic review and meta-analysis aimed to summarize all available literatures to investigate the influence of PD on postoperative anterior knee pain (AKP) and knee function after TKR. METHODS Electronic databases, including PubMed, Cochrane Library and Embase, were searched from their inception to March 2021. Randomized controlled trials (RCT) and quasi-randomized controlled trials (quasi-RCT) comparing PD and non-patellar denervation (NPD) in TKR were selected, and the Cochrane risk of bias tool was used to assess the quality of included trials. AKP prevalence was defined as the primary outcome. RESULTS A total of 12 RCTs and one quasi-RCT enrolled 1895 knees proved eligible. PD knees had significantly lower AKP prevalence than NPD knees (odds ratio [OR] = 0.54; 95% confidence intervals [95% CI], 0.36-0.81; p = 0.003). There was no difference between PD and NPD in terms of visual analogue scale for knee pain and range of motion, American knee society knee score, American knee society function score, patellar feller score, Oxford knee score for knee function. The results of subgroup analysis based on follow-up duration and patella resurfacing were in accordance with the results. PD knees were not associated with a higher risk of complication or revision. CONCLUSION PD can significantly reduce the AKP prevalence following TKR without increasing the risk of complication and revision. Although the pain relief effect of PD may not be associated with improved knee function after TKR, this procedure is preferred in both patella resurfacing and patella non-resurfacing TKR.
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Affiliation(s)
- Yongzhi Qin
- Department of Orthopaedics, The People's Hospital, Guang'an, China
| | - Chuancheng Pu
- Department of Orthopaedics, The People's Hospital, Guang'an, China
| | - Yong Zhou
- Department of Orthopaedics, The People's Hospital, Guang'an, China
| | - Jiang Yu
- Department of Orthopaedics, The People's Hospital, Guang'an, China
| | - Jing Tang
- Department of Orthopaedics, The People's Hospital, Guang'an, China.,Intensive Care Unit, Tthe People's Hospital, Guang'an, China
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13
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Biomechanical Consequences of Tibial Insert Thickness after Total Knee Arthroplasty: A Musculoskeletal Simulation Study. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11052423] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The thickness of the tibial polyethylene (PE) insert is a critical parameter to ensure optimal soft-tissue balancing in the intraoperative decision-making procedure of total knee arthroplasty (TKA). However, there is a paucity of information about the kinetic response to PE insert thickness variations in the tibiofemoral (TF) joint, and subsequently, the secondary effects on the patellofemoral (PF) biomechanics. Therefore, the purpose of this study was to investigate the influence of varying PE insert thickness on the ligament and TF compressive forces, as well as on the PF forces and kinematics, after a cruciate-retaining TKA. A previous patient-specific musculoskeletal model of TKA was adapted to simulate a chair-rising motion in which PE insert thickness was varied with 2 mm increments or decrements compared to the reference case (9 mm), from 5 mm up to 13 mm. Greater PE insert thickness resulted in higher ligament forces and concurrently increased the TF compressive force by 21% (13 mm), but slightly unloaded the PF joint with 7% (13 mm) while shifting the patella distally in the trochlear groove, compared to the reference case. Thinner PE inserts showed an opposite trend. Our findings suggest that the optimal PE insert thickness selection is a trade-off between the kinetic outcomes of the TF and PF joints.
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14
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Li CY, Ng Cheong Chung KJ, Ali OME, Chung NDH, Li CH. Literature review of the causes of pain following total knee replacement surgery: prosthesis, inflammation and arthrofibrosis. EFORT Open Rev 2020; 5:534-543. [PMID: 33072405 PMCID: PMC7528670 DOI: 10.1302/2058-5241.5.200031] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Adverse knee pain occurs in 10–34% of all total knee replacements (TKR), and 20% of TKR patients experience more pain post-operatively than pre-operatively. Knee pain is amongst the top five reasons for knee replacement revision in the United Kingdom. The number of TKRs is predicted to continue increasing due to the ageing population. A narrative literature review was performed on the different causes of pain following TKR. A database search on Scopus, PubMed, and Google Scholar was conducted to look for articles related to TKR, pain, and cause. Articles were selected based on relevance, publication date, quality of research and validation. Relevant sections were added to the review. One hundred and fourteen articles were identified and potential causes of TKR pain included: arthrofibrosis, aseptic loosening, avascular necrosis, central sensitization, component malpositioning, infection, instability, nerve damage, overstuffing, patellar maltracking, polyethylene wear, psychological factors and unresurfaced patella. It is important to tailor our approach to address the individual causes of pain. Certain controllable risk factors can be managed pre-operatively to minimize post-operative pain. Risk factors help to predict adverse pain outcomes and identify specific causes. There are multiple causes of pain following TKR. Some factors will require further extensive studies, and as pain is a commonly attributed reason for TKR revision, its underlying aetiologies should be explored. Understanding these factors helps to develop effective methods for diagnosis, prevention and management of TKR pain, which help to improve patient outcomes.
Cite this article: EFORT Open Rev 2020;5:534-543. DOI: 10.1302/2058-5241.5.200031
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Affiliation(s)
- Cheuk Yin Li
- School of Medical Education, Newcastle University, Framlington Place, Newcastle upon Tyne, UK
| | | | - Omar M E Ali
- School of Medical Education, Newcastle University, Framlington Place, Newcastle upon Tyne, UK
| | - Nicholas D H Chung
- School of Medical Education, Newcastle University, Framlington Place, Newcastle upon Tyne, UK
| | - Cheuk Heng Li
- School of Medical Education, Newcastle University, Framlington Place, Newcastle upon Tyne, UK
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