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Noyes FR, Fleckenstein CM, Nolan J. Return to Sports in Patients Aged 50 Years or Younger After Robotic-Assisted Patellofemoral Arthroplasty: A 10-Year Experience Reporting High Clinical Benefits and High Patient Satisfaction With Return to an Active Lifestyle. Am J Sports Med 2024; 52:1514-1526. [PMID: 38656145 DOI: 10.1177/03635465241237460] [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: 04/26/2024]
Abstract
BACKGROUND Limited data are available on return to sports and patient psychometric ratings of success after patellofemoral arthroplasty (PFA) in younger patients with high expectations to return to an active lifestyle. PURPOSE/HYPOTHESIS The purpose of this article was to determine the role of PFA and its success in meeting patient expectations regarding the return to low-impact recreational sports and an active lifestyle in younger, active patients. It was hypothesized that PFA would allow younger patients to return to low-impact sports and an active lifestyle and achieve high patient psychometric ratings. STUDY DESIGN Case series; Level of evidence, 4. METHODS In this 10-year prospective study (2009-2018), robotic-assisted PFA was performed on 44 patients (32 women and 12 men; n = 51 consecutive knees), with a mean age of 37.2 years (range, 21-50 years). The follow-up rate was 98%, with a mean of 5.3 years (range, 2-9.3 years). Primary clinical outcomes were as follows: the validated Cincinnati Knee Rating System sports activity and symptom rating scales, patient psychometric ratings of the substantial clinical benefit (SCB), and the Patient Acceptable Symptom State (PASS). Secondary outcomes were the Cincinnati Knee Rating System occupational rating, visual analog pain scale, and the 12-Item Short Form Health Survey. Survivorship was defined by conversion to total knee replacement (TKR). RESULTS Before PFA, 78% of patients (35/45 knees) were symptomatic and unable to perform recreational sports, with only 20% of patients (9/45 knees) performing some low-impact sports. After PFA, 80% of patients (36/45 knees) were able to perform low-impact sports, and 7% (3/45 knees) performed jumping-pivoting sports (P < .001). The SCB scored by the patient showed 87% of knees as good, very good, or normal. On the PASS analysis, 89% of patients (95% CI, 76%-96%) were "pleased," and 93% (95% CI, 82%-99%) would undergo surgery again. There were clinically relevant improvements in symptoms of pain, swelling, and giving way (P = .0001). Preoperatively, 91% of knees had moderate to severe pain with activities of daily living, and only 11% of knees had pain at the follow-up. Five of the 50 knees (10%) underwent TKR conversion with one patient lost to follow-up. CONCLUSION PFA resulted in a high return of patients to low-impact sports with high SCB and PASS psychometric ratings. The robotic-assisted 3-dimensional preoperative planning allowed precise intraoperative trochlear implant alignment in knees with severe trochlear dysplasia. PFA is recommended as an alternative treatment in younger patients with end-stage symptomatic patellofemoral arthritis. REGISTRATION NCT02738476 (ClinicalTrials.gov identifier).
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Affiliation(s)
- Frank R Noyes
- Mercy Health, Noyes Knee Institute, Cincinnati SportsMedicine Research and Education Foundation, Cincinnati, Ohio, USA
| | - Cassie M Fleckenstein
- Mercy Health, Noyes Knee Institute, Cincinnati SportsMedicine Research and Education Foundation, Cincinnati, Ohio, USA
| | - Joseph Nolan
- Department of Mathematics and Statistics, Burkardt Consulting Center, Northern Kentucky University, Highland Heights, Kentucky, USA
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Williams J, Albuquerque Ii JBD, Nuelle CW, Stannard JP, Cook JL. Impacts of Knee Arthroplasty on Activity Level and Knee Function in Young Patients: A Systematic Review. J Knee Surg 2024; 37:452-459. [PMID: 37714214 DOI: 10.1055/a-2176-4688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/17/2023]
Abstract
The annual demand for knee arthroplasty has been steadily rising, particularly in younger patients. The primary objective of this systematic review was to determine the impact of knee arthroplasties on knee function and activity levels in young (≤55 years) patients. A PubMed search from inception (1977) to March 2022 to identify eligible studies produced 640 peer-reviewed studies for consideration. A total of 18 studies including 4,186 knee arthroplasties in 3,200 patients (mean patient age at the time of surgery: 47.4 years, range: 18-55 years) were ultimately included for analysis. Mean final follow-up (FFU) duration was 5.8 years (range: 2-25.1 years). Mean FFU improvement in Knee Society Clinical Score was 48.0 (1,625 knees, range: 20.9-69.0), Knee Society Function Score was 37.4 (1,284 knees, range: 20-65). Mean FFU for the Tegner and Lysholm activity scale was 2.8 (4 studies, 548 knees, range: 0.7-4.2); University of California Los Angeles Physical Activity Questionnaire score was 2.8 (3 studies, 387 knees, range: 1.2-5); lower extremity activity scale was 1.84 (529 knees). The available evidence suggest that young patients typically realize sustained improvements in knee function compared to preoperative levels; however, these improvements do not typically translate into a return to desired activity levels or quality of life, and this patient population should expect a higher and earlier risk for revision than their older counterparts. Further research, including robust registry data, is needed to establish evidence-based indications, expectations, and prognoses for outcomes after knee arthroplasty in young and active patients.
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Affiliation(s)
- Jonathan Williams
- Thompson Laboratory for Regenerative Orthopaedics, Missouri Orthopaedic Institute, University of Missouri, Columbia, Missouri
- Department of Orthopaedic Surgery, University of Missouri, Columbia, Missouri
| | - João B de Albuquerque Ii
- Thompson Laboratory for Regenerative Orthopaedics, Missouri Orthopaedic Institute, University of Missouri, Columbia, Missouri
- Department of Orthopaedic Surgery, University of Missouri, Columbia, Missouri
| | - Clayton W Nuelle
- Thompson Laboratory for Regenerative Orthopaedics, Missouri Orthopaedic Institute, University of Missouri, Columbia, Missouri
- Department of Orthopaedic Surgery, Mizzou Joint and Limb Preservation Center, Missouri Orthopaedic Institute, Columbia, Missouri
- Department of Orthopaedic Surgery, University of Missouri, Columbia, Missouri
| | - James P Stannard
- Thompson Laboratory for Regenerative Orthopaedics, Missouri Orthopaedic Institute, University of Missouri, Columbia, Missouri
- Department of Orthopaedic Surgery, Mizzou Joint and Limb Preservation Center, Missouri Orthopaedic Institute, Columbia, Missouri
- Department of Orthopaedic Surgery, University of Missouri, Columbia, Missouri
| | - James L Cook
- Thompson Laboratory for Regenerative Orthopaedics, Missouri Orthopaedic Institute, University of Missouri, Columbia, Missouri
- Department of Orthopaedic Surgery, Mizzou Joint and Limb Preservation Center, Missouri Orthopaedic Institute, Columbia, Missouri
- Department of Orthopaedic Surgery, University of Missouri, Columbia, Missouri
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Andronic O, Suravaram V, Lu V, Wall SJ, Bucher TA, Prosser GH, Yates PJ, Jones CW. What are the Outcomes of Secondary Patella Resurfacing for Dissatisfaction Following Primary Knee Arthroplasty? A Systematic Review and Meta-Analysis of 604 Knees. J Arthroplasty 2024; 39:1093-1107.e1. [PMID: 37871862 DOI: 10.1016/j.arth.2023.10.027] [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: 08/03/2023] [Revised: 10/07/2023] [Accepted: 10/14/2023] [Indexed: 10/25/2023] Open
Abstract
BACKGROUND Secondary patella resurfacing is often performed for dissatisfaction following primary knee arthroplasty where the native patella was retained. The purpose of this meta-analysis was to evaluate outcomes of secondary patella resurfacing. METHODS The systematic review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Studies reporting on patients who underwent secondary patella resurfacing after previous primary knee arthroplasty with retention of the native patella were considered eligible. The risk of bias was assessed using the Methodological Index for Non-Randomized studies tool. A random-effects model and the inverse-variance weighting method was used for meta-analysis. There were sixteen retrospective studies including 604 knees (594 patients) with a mean follow up of 42 months (range, 2 to 197). RESULTS An overall improvement in patient-reported outcomes (PROMs) was achieved in 53% of cases from pooled data available for 293 knees [95% Confidence Interval (CI) (0.44, 0.62), I2=68% - moderate heterogeneity]. The pooled proportion of patients satisfied with the procedure was 59% [95% CI (48, 68), I2 = 70% - moderate heterogeneity] in a sample size of 415. There was a minimal rate (2%) of complication incidence when performing secondary patella resurfacing and a pooled rate of revision surgery of 10%. CONCLUSIONS An improvement in pain, satisfaction, and PROMs was achieved in slightly more than half of the patients following secondary patella resurfacing. However, studies lacked standardized objective selection criteria for the procedure and the available data was predominantly retrospective, with high heterogeneity and variation in outcome reporting.
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Affiliation(s)
- Octavian Andronic
- The Orthopaedic Research Foundation of Western Australia (ORFWA), Perth, Australia; Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Vishwa Suravaram
- Faculty of Medicine, Dentistry and Health Sciences, The University of Western Australia, Perth, Australia
| | - Victor Lu
- School of Clinical Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Simon J Wall
- The Orthopaedic Research Foundation of Western Australia (ORFWA), Perth, Australia
| | - Thomas A Bucher
- The Orthopaedic Research Foundation of Western Australia (ORFWA), Perth, Australia
| | - Gareth H Prosser
- The Orthopaedic Research Foundation of Western Australia (ORFWA), Perth, Australia
| | - Piers J Yates
- The Orthopaedic Research Foundation of Western Australia (ORFWA), Perth, Australia
| | - Christopher W Jones
- The Orthopaedic Research Foundation of Western Australia (ORFWA), Perth, Australia; Curtin University, Perth, Australia
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Cozzarelli NF, Khan IA, Arshi A, Sherman MB, Lonner JH, Fillingham YA. Return to Sport After Unicompartmental Knee Arthroplasty and Patello-Femoral Arthroplasty. J Arthroplasty 2024:S0883-5403(24)00103-7. [PMID: 38367903 DOI: 10.1016/j.arth.2024.02.004] [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: 08/21/2023] [Revised: 01/24/2024] [Accepted: 02/05/2024] [Indexed: 02/19/2024] Open
Abstract
BACKGROUND Data on sports/physical activity participation following unicompartmental knee arthroplasty (UKA) and patello-femoral arthroplasty (PFA) is variable and limited. The purpose of this study was to assess participations, outcomes, and limitations in sports following UKA and PFA. METHODS Patients who underwent UKA and PFA at a single institution from 2015 to 2020 were surveyed on sports participation before and after surgery. Data was correlated with perioperative patient characteristics and outcome scores. Among 776 patients surveyed, 356 (50%) patients responded. Of respondents, 296 (83.1%) underwent UKA, 44 (12.6%) underwent PFA, and 16 (4.5%) underwent both UKA/PFA. RESULTS Activity participation rates were 86.5, 77.3, and 87.5% five years prior, and 70.9, 61.4, and 75% at one year prior to UKA, PFA, and UKA/PFA, respectively. Return to sports rates were 81.6, 64.7, and 62.3% at mean 4.6 years postoperatively, respectively. The most common activities were recreational walking, swimming, cycling, and golf. Patients returned to a similar participation level for low-impact activities, whereas participation decreased for intermediate- and high-impact activities. Patients participating in activities had higher postoperative Knee Injury and Osteoarthritis Outcome Score Joint Replacement (P < .001), 12-Item Short Form Physical Component Score (P = .045) and Mental Component Score (P = .012). Activity restrictions were reported among 25, 36.4, and 25% of UKA, PFA, and UKA/PFA patients, respectively, and were more commonly self-imposed than surgeon-directed. CONCLUSIONS Though UKA patients' postoperative sports participation may improve compared to one year preoperatively, participation for patients surgically treated for isolated osteoarthritis is decreased compared to 5 years preoperatively and varies among patient subsets.
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Affiliation(s)
- Nicholas F Cozzarelli
- Department of Orthopedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Irfan A Khan
- Department of Orthopedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Armin Arshi
- Department of Orthopedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, Pennsylvania; Department of Orthopedic Surgery, NYU Langone Health, New York, New York
| | - Matthew B Sherman
- Department of Orthopedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Jess H Lonner
- Department of Orthopedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Yale A Fillingham
- Department of Orthopedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, Pennsylvania
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Vella-Baldacchino M, Webb J, Selvarajah B, Chatha S, Davies A, Cobb JP, Liddle AD. Should we recommend patellofemoral arthroplasties to patients? Bone Jt Open 2023; 4:948-956. [PMID: 38096897 PMCID: PMC10721344 DOI: 10.1302/2633-1462.412.bjo-2023-0100.r1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2023] Open
Abstract
Aims With up to 40% of patients having patellofemoral joint osteoarthritis (PFJ OA), the two arthroplasty options are to replace solely the patellofemoral joint via patellofemoral arthroplasty (PFA), or the entire knee via total knee arthroplasty (TKA). The aim of this study was to assess postoperative success of second-generation PFAs compared to TKAs for patients treated for PFJ OA using patient-reported outcome measures (PROMs) and domains deemed important by patients following a patient and public involvement meeting. Methods MEDLINE, EMBASE via OVID, CINAHL, and EBSCO were searched from inception to January 2022. Any study addressing surgical treatment of primary patellofemoral joint OA using second generation PFA and TKA in patients aged above 18 years with follow-up data of 30 days were included. Studies relating to OA secondary to trauma were excluded. ROB-2 and ROBINS-I bias tools were used. Results A total of nine studies were included, made up of four randomized controlled trials (domain 1) and five cohort studies (domain 2). PROMs and knee function specific scores developed for reporting TKA were unable to detect any difference between PFA and TKA. There was no significant difference in complications between PFA and TKA. PFAs were found to have a better postoperative range of motion. Conclusion TKA and PFA are both viable options for patients with primary PFJ OA. Over time, we have seen an emphasis on patient satisfaction and better quality of life. Recommending sacrificing healthy medial and lateral compartments to treat patellofemoral joint arthritis should be given further thought.
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Affiliation(s)
| | | | | | | | - Andrew Davies
- Department of Bioengineering, Imperial College London, London, UK
| | - Justin P. Cobb
- MSk Lab, Imperial College London, Department of Surgery & Cancer, Sir Michael Uren Hub, London, UK
| | - Alexander D. Liddle
- MSk Lab, Imperial College London, Department of Surgery & Cancer, Sir Michael Uren Hub, London, UK
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Morrison R, Mandalia V. Current outcomes of patellofemoral arthroplasty for isolated patellofemoral arthritis - A narrative review. J Orthop 2023; 46:156-160. [PMID: 37997600 PMCID: PMC10663639 DOI: 10.1016/j.jor.2023.10.036] [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: 10/01/2023] [Revised: 10/27/2023] [Accepted: 10/29/2023] [Indexed: 11/25/2023] Open
Abstract
Patellofemoral (PFJ) arthritis can be primary, or secondary to underlying trochlea dysplasia and patellofemoral malalignment. Although primary PFJ osteoarthritis affects an older patient population, just like tibiofemoral arthritis, it is common for younger patients to present with isolated PFJ arthritis secondary to an abnormal PFJ. PFJ arthroplasty (PFJA) has many benefits including being less invasive, associated with lower blood loss, is more cost-effective, and leaves the kinematics of the tibiofemoral joint undisturbed. As a result, there are arguably better functional outcomes associated with PFJA, however the historical revision rate of this procedure is high. Although registry outcome data associated with the first generation of PFJ implants shows a higher revision rate compared to TKA, the comparison of PFJ outcomes with TKA is not always age-matched and there is limited comparison on functional and patient-reported outcomes, something which is more important and relevant in a younger patient cohort. Improvements in implant design, instrumentation, surgical technique, and better patient selection has now resulted in outcomes which are comparable to that of TKA, and in some cases even better. This narrative review outlines the current outcomes of PFJA including highlighting factors which need to be considered in optimising outcomes, as well as discussing advanced techniques of robotic assisted PFJA.
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Affiliation(s)
- Rory Morrison
- Exeter Knee Reconstruction Unit, Royal Devon and Exeter Hospital, Exeter, Devon, EX2 5DW, UK
| | - Vipul Mandalia
- Exeter Knee Reconstruction Unit, Royal Devon and Exeter Hospital, Exeter, Devon, EX2 5DW, UK
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Rupp MC, Khan ZA, Dasari SP, Berthold DP, Siebenlist S, Imhoff AB, Chahla J, Pogorzelski J. Establishing the Minimal Clinically Important Difference and Patient Acceptable Symptomatic State following Patellofemoral Inlay Arthroplasty for Visual Analog Scale Pain, Western Ontario and McMaster Universities Arthritis Index, and Lysholm Scores. J Arthroplasty 2023; 38:2580-2586. [PMID: 37286052 DOI: 10.1016/j.arth.2023.05.084] [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: 10/03/2022] [Revised: 05/26/2023] [Accepted: 05/29/2023] [Indexed: 06/09/2023] Open
Abstract
BACKGROUND The purposes of the study were to define the minimal clinically important difference (MCID) and patient acceptable symptomatic state (PASS) after patello-femoral inlay arthroplasty (PFA) and to identify factors predictive for the achievement of clinically important outcomes (CIOs). METHODS A total of 99 patients who underwent PFA between 2009 and 2019 and had a minimum of 2-year postoperative follow-up were enrolled in this retrospective monocentric study. Included patients had a mean age of 44 years (range, 21 to 79). The MCID and PASS were calculated using an anchor-based approach for the visual analog scale (VAS) pain, Western Ontario and McMaster Universities Arthritis Index (WOMAC), and Lysholm patient-reported outcome measures. Factors associated with CIO achievement were determined using multivariable logistic regression analyses. RESULTS The established MCID thresholds for clinical improvement were -2.46 for the VAS pain score, -8.5 for the WOMAC score, and + 25.4 for the Lysholm score. Postoperative scores corresponding to the PASS were <2.55 for the VAS pain score, <14.6 for the WOMAC score, and >52.5 points for the Lysholm score. Preoperative patellar instability and concomitant medial patello-femoral ligament reconstruction were independent positive predictors of reaching both MCID and PASS. Additionally, inferior baseline scores and age were predictive of achieving MCID, whereas superior baseline scores and body mass index were predictive of achieving PASS. CONCLUSION This study determined the thresholds of MCID and PASS for the VAS pain, WOMAC, and Lysholm scores following PFA implantation at 2-year follow-up. The study demonstrated a predictive role of patient age, body mass index, preoperative patient-reported outcome measure scores, preoperative patellar instability, and concomitant medial patello-femoral ligament reconstruction in the achievement of CIOs. LEVEL OF EVIDENCE Prognostic Level IV.
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Affiliation(s)
- Marco-Christopher Rupp
- Department of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Zeeshan A Khan
- Midwest Orthopaedics at Rush, Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois
| | - Suhas P Dasari
- Midwest Orthopaedics at Rush, Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois
| | - Daniel P Berthold
- Department of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany; Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Munich, Germany
| | - Sebastian Siebenlist
- Department of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Andreas B Imhoff
- Department of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Jorge Chahla
- Midwest Orthopaedics at Rush, Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois
| | - Jonas Pogorzelski
- Department of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
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Cardenas C, Wascher DC. Outcomes of isolated patellofemoral arthroplasty. J ISAKOS 2023:S2059-7754(23)00595-3. [PMID: 37984692 DOI: 10.1016/j.jisako.2023.11.005] [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: 06/26/2023] [Revised: 11/01/2023] [Accepted: 11/13/2023] [Indexed: 11/22/2023]
Abstract
Osteoarthritis of the patellofemoral compartment can cause significant functional impairment. Isolated patellofemoral osteoarthritis affects greater than 10% of males and females over the age of 60. Patellofemoral arthroplasty (PFA) was developed as a joint-preserving procedure that maintains natural knee kinematics in those with isolated patellofemoral disease. First-generation implants were fraught with complications, a high rate of revision, and early conversion to total knee arthroplasty (TKA). Second-generation implants have demonstrated significant improvements in patient-reported outcome measures, complication rates and implant survivorship. Factors that can affect outcomes include surgical indications, patient selection, and PFA prosthesis design. Modern PFA for isolated patellofemoral osteoarthritis has comparable outcomes to TKA for isolated patellofemoral osteoarthritis. In this article, we discuss the use of PFA, implant design, the indications and factors affecting outcomes, and comparison to TKA.
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Affiliation(s)
- Cesar Cardenas
- Department of Orthopaedic Surgery, University of New Mexico, MSC 10 5600, 1 University of New Mexico, Albuquerque, NM 87131-0001, USA
| | - Daniel C Wascher
- Department of Orthopaedic Surgery, University of New Mexico, MSC 10 5600, 1 University of New Mexico, Albuquerque, NM 87131-0001, USA.
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Bond EC, Stauffer TP, Hendren S, Amendola A. Modern Patellofemoral Arthroplasty. JBJS Rev 2023; 11:01874474-202309000-00002. [PMID: 37656827 DOI: 10.2106/jbjs.rvw.23.00071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/03/2023]
Abstract
INTRODUCTION The ideal procedure for isolated patellofemoral arthritis is a controversial topic. Patellofemoral arthroplasty (PFA) is an option that aims to restore normal kinematics to the knee while preserving bone. PFA has been shown to have benefits compared with total knee arthroplasty (TKA) in this patient population but has historically had a high failure rate. Revision rates are improving with modern implants and tight indications but still remain higher than TKA. This review summarizes current thinking around PFA using modern implants and techniques in 2023, provides an implant-specific analysis, and assesses how we can improve outcomes after PFA based on the current literature. The aim was to provide an outline of the evidence around PFA on which surgeons can make decisions to optimize patient outcome in this young and active population. METHODS Four databases (MEDLINE, Embase, Scopus, and SPORTDiscus) were searched for concepts of patellofemoral joint arthroplasty. After abstract and text review, a screening software was used to assess articles based on inclusion criteria for studies describing indications, outcomes, and techniques for isolated PFA using modern implants, with or without concomitant procedures. RESULTS A total of 191 articles were included for further examination, with 62 articles being instructional course lectures, systematic reviews, technique articles, narrative reviews, expert opinions, or meta-analyses. The remaining articles were case reports, trials, or cohort studies. Articles were used to create a thorough outline of multiple recurrent topics in the literature. CONCLUSIONS PFA is an appealing option that has the potential to provide a more natural feeling and functioning knee for those with isolated PF arthritis. The high rate of revision is a cause for concern and there are several technical details that should be stressed to optimize results. The uncertain outcome after revision to TKA also requires more investigation. In addition, the importance of strict selection criteria and firm indications cannot be stressed enough to optimize longevity and attempt to predict those who are likely to have progression of tibiofemoral osteoarthritis. The development of new third-generation implants is promising with excellent functional outcomes and a much lower rate of maltracking and implant complications compared with earlier generations. The impact of these implants and improvement in surgical techniques on the revision rate of PFA will be determined from longer-term outcomes.
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Affiliation(s)
- Elizabeth C Bond
- Division of Orthopedic Surgery, Duke University, Durham, North Carolina
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Treu EA, Frandsen JJ, Al Saidi NN, Blackburn BE, Pelt CE, Anderson LA, Gililland JM. Outcomes are Compromised When Revising Patellofemoral Arthroplasties for Patellar Component Failures. J Arthroplasty 2023; 38:S369-S375. [PMID: 36889525 DOI: 10.1016/j.arth.2023.02.083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 02/27/2023] [Accepted: 02/28/2023] [Indexed: 03/10/2023] Open
Abstract
BACKGROUND Outcomes of patellofemoral arthroplasty (PFA) to total knee arthroplasty (TKA) conversion are reported to be similar to primary cases. The purpose of this study was to determine whether the cause for conversion from PFA to TKA correlated to outcomes when compared to a matched cohort. METHODS A retrospective chart review was performed to identify aseptic PFA to TKA conversions between 2000 and 2021. A cohort of primary TKAs was matched by patient sex, body mass index, and American Society of Anesthesiology score. Clinical outcomes, including range of motion, complication rates, and patient reported outcomes measurement information systems scores, were compared. Chi-squared, Fisher's Exact, and t-tests were performed. There were 20 PFA to TKA conversions that met inclusion criteria and were matched to 60 primary cases. RESULTS There were 7 cases revised for arthritis progression, 5 for femoral component failure, 5 for patellar component failure, and 3 for patellar maltracking. PFA to TKA conversions for patellar failure (fracture, component loosening) had worse postoperative flexion (115 versus 127°, P = .023) and more complications of stiffness (40 versus 0%, P = .046) than primary TKAs. Conversions for failed patellar components had worse patient reported outcomes measurement information systems physical function (32 versus 45, P = .0046), physical health (42 versus 49, P = .0258), and pain scores (45 versus 24, P = .0465). No differences were found in rates of infection, manipulations under anesthesia, or reoperations. CONCLUSION PFA to TKA conversion outcomes were similar to primary TKA, except in patients who had failed patellar components and demonstrated worse postoperative range of motion and patient-reported outcomes. Surgeons should avoid thin patellar resections and extensive lateral releases to minimize patellar failures.
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Affiliation(s)
- Emily A Treu
- Department of Orthopaedic Surgery, University of Utah, Salt Lake City, Utah
| | - Jeffrey J Frandsen
- Department of Orthopaedic Surgery, University of Utah, Salt Lake City, Utah
| | - Neil N Al Saidi
- College of Medicine, Central Michigan University, Mount Pleasant, Michigan
| | - Brenna E Blackburn
- Department of Orthopaedic Surgery, University of Utah, Salt Lake City, Utah
| | - Christopher E Pelt
- Department of Orthopaedic Surgery, University of Utah, Salt Lake City, Utah
| | - Lucas A Anderson
- Department of Orthopaedic Surgery, University of Utah, Salt Lake City, Utah
| | - Jeremy M Gililland
- Department of Orthopaedic Surgery, University of Utah, Salt Lake City, Utah
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Batailler C, Putzeys P, Lacaze F, Vincelot-Chainard C, Fontalis A, Servien E, Lustig S. Patellofemoral Arthroplasty Is an Efficient Strategy for Isolated Patellofemoral Osteoarthritis with or without Robotic-Assisted System. J Pers Med 2023; 13:jpm13040625. [PMID: 37109011 PMCID: PMC10142406 DOI: 10.3390/jpm13040625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 03/26/2023] [Accepted: 03/28/2023] [Indexed: 04/05/2023] Open
Abstract
There is relative paucity in the literature concerning outcomes after robotic-assisted Patellofemoral Arthroplasty (PFA). The aims were (1) to evaluate outcomes in patients undergoing PFA with inlay or onlay components, with or without robotic arm assistance and (2) to identify risk factors of poor outcomes after PFA. This retrospective study included 77 PFA for isolated patellofemoral joint osteoarthritis, assigned to three groups (18 conventional technique, 17 image-free robotic-assisted system and 42 image-based robotic-assisted system). The demographic data were comparable between the three groups. The clinical outcomes assessed were: Visual Analogue Scale, Knee Society Score, Kujala score and satisfaction rate. The radiological measures were: Caton Deschamps index, patellar tilt and frontal alignment of the trochlea. Functional outcomes, satisfaction rate and residual pain were comparable between the three groups. Patellar tilt improvement was superior when a robotic device was used (either image-based or image-free) compared to the conventional technique. There were three revisions (3.9%) at the last follow-up related to femorotibial osteoarthritis progression. Multivariate analysis found no significant risk factors for poor outcomes, with respect to the surgical technique or implant design. Functional outcomes and revisions rate after PFA were comparable between the surgical techniques and implants. Robotic-assisted systems were associated with a superior improvement of the patellar tilt compared to the conventional technique.
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Affiliation(s)
- Cécile Batailler
- Department of Orthopaedics, Croix Rousse Hospital, Claude Bernard Lyon 1 University, 69004 Lyon, France
- IFSTTAR, LBMC UMR_T9406, Claude Bernard Lyon 1 University, 69100 Lyon, France
| | - Pit Putzeys
- Department of Orthopaedics, Hôpitaux Robert Schuman, L-2540 Luxembourg, Luxembourg
| | - Franck Lacaze
- Department of Orthopaedics, ORTHOSUD, Clinique St Jean Sud de France, 34430 Saint Jean de Vedas, France
| | | | - Andreas Fontalis
- Department of Trauma and Orthopaedic Surgery, University College London Hospitals, London NW1 2BU, UK
| | - Elvire Servien
- Department of Orthopaedics, Croix Rousse Hospital, Claude Bernard Lyon 1 University, 69004 Lyon, France
- Interuniversity Laboratory of Biology of Mobility (LIBM-EA 7424), Claude Bernard Lyon 1 University, 69003 Lyon, France
| | - Sébastien Lustig
- Department of Orthopaedics, Croix Rousse Hospital, Claude Bernard Lyon 1 University, 69004 Lyon, France
- IFSTTAR, LBMC UMR_T9406, Claude Bernard Lyon 1 University, 69100 Lyon, France
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Kunze KN, Palhares G, Uppstrom TJ, Hinkley P, Rizy M, Gomoll AH, Stein BES, Strickland SM. Establishing minimal detectable change thresholds for the international knee documentation committee and Kujala scores at one and two years after patellofemoral joint arthroplasty. Knee Surg Sports Traumatol Arthrosc 2023:10.1007/s00167-023-07341-y. [PMID: 36951980 DOI: 10.1007/s00167-023-07341-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 02/05/2023] [Indexed: 03/24/2023]
Abstract
PURPOSE To define the minimal detectable change (MDC) for the international knee documentation committee (IKDC) and Kujala scores one and two years after patellofemoral joint arthroplasty (PFA). METHODS A distribution-based method (one-half the standard deviation of the mean difference between postoperative and preoperative outcome scores) was applied to establish MDC thresholds among 225 patients undergoing primary PFA at a single high-volume musculoskeletal-care center. Stability of change in MDC achievement was explored by quantifying the proportion of achievement at one- and two-year postoperative timepoints. Multivariable logistic regression analysis was performed to explore the association between sociodemographic and operative features on MDC achievement. RESULTS MDC thresholds for the Kujala score were 10.3 (71.1% achievement) and 10.6 (70.4% achievement) at one- and two years, respectively. The MDC thresholds for the IKDC score were 11.2 (78.1% achievement) and 12.3 (69.0% achievement) at one- and two years, respectively. Predictors of achieving the MDC for the Kujala and IKDC scores at both time points were lower preoperative Kujala and IKDC scores, respectively. Preoperative thresholds of ≤ 24.1 and 7.6 for the Kujala and IKDC scores, respectively, were associated with a 90% MDC achievement probability. When preoperative thresholds approached 64.3 and 48.3 for the Kujala and IKDC, respectively, MDC achievement probability reduced to 50%. CONCLUSION The MDC thresholds for the Kujala and IKDC scores two years after PFA were 10.6 and 12.3, respectively. Clinically significant health status changes were maintained overall, with a slight decrease in achievement rates between one and two years. MDC achievement was associated with disability at presentation, and several probability-based preoperative thresholds were defined. These findings may assist knee surgeons with patient selection and the decision to proceed with PFA by better understanding the patient-specific propensity for MDC achievement. LEVEL OF EVIDENCE IV, retrospective case series.
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Affiliation(s)
- Kyle N Kunze
- Department of Orthopaedic Surgery, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA.
| | - Guilherme Palhares
- Department of Orthopaedic Surgery, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
| | - Tyler J Uppstrom
- Department of Orthopaedic Surgery, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
| | - Paige Hinkley
- Department of Orthopaedic Surgery, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
| | - Morgan Rizy
- Department of Orthopaedic Surgery, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
| | - Andreas H Gomoll
- Department of Orthopaedic Surgery, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
| | - Beth E Shubin Stein
- Department of Orthopaedic Surgery, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
| | - Sabrina M Strickland
- Department of Orthopaedic Surgery, Hospital for Special Surgery, 535 East 70th Street, New York, NY, 10021, USA
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Abstract
Isolated patellofemoral osteoarthritis (PFOA) is a common cause of anterior knee pain in patients over the age of 40 years. Patellofemoral arthroplasty (PFA) is an option to address PFAO when the non-operative or joint preserving management has failed.The goals of PFA are to reduce pain and increase function of the knee in a bone and ligament preserving fashion while maintaining or optimizing its kinematics. Over the last decades advances have been made in optimizing implants designs, addressing complications and improving functional and patient reported outcomes. Appropriate patient selection has proven to be imperative. Proper surgical technique and knowledge of pearls and pitfalls is essential.The indications and surgical technique for patellofemoral arthroplasty will be reviewed here.Level of evidence: Therapeutic Level V.
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Affiliation(s)
- Paul Hoogervorst
- Department of Orthopedic Surgery, University of Minnesota, 2450 Riverside Ave Suite R200, Minneapolis, MN, 55454, USA
| | - Elizabeth A Arendt
- Department of Orthopedic Surgery, University of Minnesota, 2450 Riverside Ave Suite R200, Minneapolis, MN, 55454, USA.
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14
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Imhoff AB, Bartsch E, Becher C, Behrens P, Bode G, Cotic M, Diermeier T, Falk H, Feucht MJ, Haupt U, Hinterwimmer S, Holz J, Hutter R, Kaiser R, Knoblauch T, Nebelung W, Niemeyer P, O’Donnel T, Pagenstert G, Patzer T, Rose T, Rupp MC, Tischer T, Venjakob AJ, Vogt S, Pogorzelski J. The lack of retropatellar resurfacing at index surgery is significantly associated with failure in patients following patellofemoral inlay arthroplasty: a multi-center study of more than 260 patients. Knee Surg Sports Traumatol Arthrosc 2022; 30:1212-1219. [PMID: 33811265 PMCID: PMC9007771 DOI: 10.1007/s00167-021-06544-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 03/18/2021] [Indexed: 11/24/2022]
Abstract
PURPOSE To evaluate the clinical outcomes of patients with a minimum 2-year follow-up following contemporary patellofemoral inlay arthroplasty (PFIA) and to identify potential risk factors for failure in a multi-center study. METHODS All patients who underwent implantation of PFIA between 09/2009 and 11/2016 at 11 specialized orthopedic referral centers were enrolled in the study and were evaluated retrospectively at a minimum 2-year follow-up. Clinical outcomes included the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score, the Knee Injury and Osteoarthritis Outcome Score (KOOS), the Tegner Scale, the visual analogue scale (VAS) for pain, and subjective patient satisfaction. Pre- and perioperative risk factors were compared among failures and non-failures to determine potential risk factors. RESULTS A total of 263 patients (85% follow-up rate) could be enrolled. The mean age at the time of index surgery was 49 ± 12 years with a mean postoperative follow-up of 45 ± 18 months. The overall failure rate was 11% (28 patients), of which 18% (5 patients) were patients with patella resurfacing at index surgery and 82% (23 patients) were patients without initial patella resurfacing. At final follow-up, 93% of the patients who did not fail were satisfied with the procedure with a mean transformed WOMAC Score of 84.5 ± 14.5 points, a mean KOOS Score of 73.3 ± 17.1 points, a mean Tegner Score of 3.4 ± 1.4 points and a mean VAS pain of 2.4 ± 2.0 points. An increased BMI was significantly correlated with a worse postoperative outcome. Concomitant procedures addressing patellofemoral instability or malalignment, the lack of patellofemoral resurfacing at the index surgery and a high BMI were significantly correlated with failure in our patient cohort. CONCLUSION Patellofemoral inlay arthroplasty shows high patient satisfaction with good functional outcomes at short-term follow-up and thus can be considered a viable treatment option in young patients suffering from isolated patellofemoral arthritis. Patellar resurfacing at index surgery is recommended to decrease the risk of failure. LEVEL OF EVIDENCE Retrospective case series, Level IV.
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Affiliation(s)
- Andreas B. Imhoff
- Department of Orthopedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Eva Bartsch
- Department of Orthopedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Christoph Becher
- ATOS Clinic Heidelberg, Bismarckstr. 9-15, 69115 Heidelberg, Germany
| | - Peter Behrens
- Orthodok, Tonndorfer Hauptstraße 71, 22045 Hamburg, Germany
| | - Gerrit Bode
- Department of Orthopedics, University Hospital of Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany
| | - Matthias Cotic
- Department of Orthopedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Theresa Diermeier
- Department of Orthopedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Holger Falk
- Gelenkzentrum Rhein-Main, Frankfurter Straße 94, 65239 Hochheim am Main, Germany
| | - Matthias J. Feucht
- Department of Orthopedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Ulrich Haupt
- Orthomotion, City Clinic Thun, Marktgasse 17, 3600 Thun, Switzerland
| | | | | | - René Hutter
- Department of Orthopedics, Kantonspital Graubünden, Loëstrasse 99, 7000 Chur, Switzerland
| | - René Kaiser
- Orthocentrum, Hansastr. 1-3, 20149 Hamburg, Germany
| | - Tobias Knoblauch
- Gelenkzentrum Leipzig, Richard-Lehmann-Str. 21, 04275 Leipzig, Germany
| | - Wolfgang Nebelung
- Department of Sport Orthopedics, St. Vinzenz Hospital, Schloßstr. 85, 40477 Düsseldorf, Germany
| | - Philipp Niemeyer
- Department of Orthopedics, University Hospital of Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany
| | - Turlough O’Donnel
- Center for Orthopaedics, Beacon Hospital, Sandyford, Dublin 18, Dublin, Ireland
| | - Geert Pagenstert
- Knee Institute Basel, CLARAHOF Clinic of Orthopaedic Surgery, MERIAN-ISELIN-Hospital, Swiss Olympic Medical Center, Föhrenstr. 2, 4054 Basel, Switzerland
| | - Thilo Patzer
- Orthopädie-Zentrum, Schön Klinik, Am Heerdter Krankenhaus 2, 40549 Düsseldorf, Germany
| | - Tim Rose
- Gelenkzentrum Leipzig, Richard-Lehmann-Str. 21, 04275 Leipzig, Germany
| | - Marco C. Rupp
- Department of Orthopedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
| | - Thomas Tischer
- Department of Orthopedics, University Hospital of Rostock, Doberanerstr. 142, 18057 Rostock, Germany
| | - Arne J. Venjakob
- Department of Sport Orthopedics, St. Vinzenz Hospital, Schloßstr. 85, 40477 Düsseldorf, Germany
| | - Stephan Vogt
- Department of Sports Orthopedics, Hessing Stiftung, Hessingstr. 17, 86199 Augsburg, Germany
| | - Jonas Pogorzelski
- Department of Orthopedic Sports Medicine, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675 Munich, Germany
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15
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Li C, Li Z, Shi L, Gao F, Sun W. The short-term effectiveness and safety of second-generation patellofemoral arthroplasty and total knee arthroplasty on isolated patellofemoral osteoarthritis: a systematic review and meta-analysis. J Orthop Surg Res 2021; 16:358. [PMID: 34078392 PMCID: PMC8171053 DOI: 10.1186/s13018-021-02509-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 05/25/2021] [Indexed: 12/01/2022] Open
Abstract
Background We aimed to compare second-generation patellofemoral arthroplasty (2G PFA) with total knee arthroplasty (TKA) in treating isolated patellofemoral osteoarthritis (PFOA) by assessing the percentages of revisions, complications, and patient-reported outcome measures (PROMs). Methods Studies that compared the outcomes of 2G PFA and TKA in the treatment of isolated PFOA were searched in electronic databases, including MEDLINE, Embase, and Web of Science. Two researchers independently identified eligible studies, extracted the data, and evaluated the quality of the literature. Pooled risk ratios (RRs) or weighted mean differences with 95% confidence intervals were calculated using either fixed or random effects models. Descriptive analysis was used when data could not be pooled. Results A total of six studies were included in the review. For the revision percentage and complications, there were no significant differences between 2G PFA and TKA (RR = 2.29, 95% CI 0.69–7.58, P = 0.17; RR = 0.56, 95% CI 0.23–1.40, P = 0.22, respectively). Second, the results demonstrated that the differences in the Oxford Knee Score (OKS) and the University of California, Los Angeles (UCLA) activity score between 2G PFA and TKA were not significant (WMD −4.68, 95% CI −16.32 to 6.97, p = 0.43; WMD 0.16, 95% CI −1.21 to 1.53, P = 0.82). The Knee Injury and Osteoarthritis Outcome Score (KOOS), the American Knee Society Score (AKSS), and the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) were presented in a narrative form due to methodological heterogeneity. Conclusion For isolated PFOA, 2G PFA demonstrated similar results to TKA with respect to the percentages of revisions, complications, and PROMs.
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Affiliation(s)
- Chengxin Li
- Department of Orthopedics, Peking University China-Japan Friendship School of Clinical Medicine, 2 Yinghuadong Road, Chaoyang District, Beijing, 100029, China
| | - Zhizhuo Li
- Department of Orthopedics, Peking University China-Japan Friendship School of Clinical Medicine, 2 Yinghuadong Road, Chaoyang District, Beijing, 100029, China
| | - Lijun Shi
- Department of Orthopedics, Graduate School of Peking Union Medical College, China-Japan Friendship Institute of Clinical Medicine, 2 Yinghuadong Road, Chaoyang District, Beijing, 100029, China
| | - Fuqiang Gao
- Beijing Key Laboratory of Immune Inflammatory Disease, China-Japan Friendship Hospital, Peking Union Medical College, 2 Yinghuadong Road, Chaoyang District, Beijing, 100029, China
| | - Wei Sun
- Beijing Key Laboratory of Immune Inflammatory Disease, China-Japan Friendship Hospital, Peking Union Medical College, 2 Yinghuadong Road, Chaoyang District, Beijing, 100029, China.
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16
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Peng G, Liu M, Guan Z, Hou Y, Liu Q, Sun X, Zhu X, Feng W, Zeng J, Zhong Z, Zeng Y. Patellofemoral arthroplasty versus total knee arthroplasty for isolated patellofemoral osteoarthritis: a systematic review and meta-analysis. J Orthop Surg Res 2021; 16:264. [PMID: 33858458 PMCID: PMC8048312 DOI: 10.1186/s13018-021-02414-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 04/07/2021] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Isolated patellofemoral osteoarthritis (PF-OA) is a common subtype of knee osteoarthritis, leading to a huge economic burden on health care systems. Although previous studies have shown that patellofemoral arthroplasty (PFA) and total knee arthroplasty (TKA) have good clinical effects, it remains largely unclear which treatment is more effective for patients with isolated PF-OA. We aimed to compare postoperative function, complications, revision rates, level of physical activity, and satisfaction rate between the two surgical techniques. METHODS Our study followed the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines. Search of literature was conducted in MEDLINE, EMBASE, Cochrane Library, and Web of Science until November 2020. The included studies were those that provided direct comparison of postoperative outcomes between PFA and TKA. Data were extracted from eligible studies and combined to calculate the pooled odds ratio (OR) and 95% confidence interval (CI). Sensitivity analysis and subgroup analysis were conducted to evaluate heterogeneity between the two groups. RESULTS A total of 7 eligible studies (3 recent randomized controlled trials and 4 nonrandomized controlled trials) were included in this meta-analysis. The pooled results showed that both the PFA group and the TKA group had improved postoperative indicators, suggesting that the two operation modes could improve the knee function and quality of life of patients. Throughout the first 2 years postoperatively, higher activity level, and better functional recovery were observed for PFA compared with TKA in this study; moreover, the differences between the two operation modes were statistically significant (p < 0.05). We found no significant difference in complications, revision rates, and satisfaction rate between the two procedures. CONCLUSION Although there was no observed difference in the complications, revision rates, and satisfaction rate between PFA and TKA, PFA was superior to TKA in terms of knee function and physical activity in the first 2 years postoperatively. Therefore, PFA is a safe, effective, and less invasive treatment for patients with isolated PF-OA. Our findings are consistent with the systematic review of current evidence that PFA may be more suitable for younger patients with high activity needs. Patient selection is, therefore, thought to be of paramount importance. Individualized surgical plan should be designed according to the patient's age, BMI, KOA site, and activity level and combined with the doctor's personal experience.
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Affiliation(s)
- Guanrong Peng
- The First Clinical Medical School, Guangzhou University of Chinese Medicine, Jichang Road 12#, District Baiyun, Guangzhou, Guangdong, China.,Yudu People's Hospital, Huancheng North Road 2#, District Yudu, Ganzhou, Jiangxi, China
| | - Min Liu
- The First Clinical Medical School, Guangzhou University of Chinese Medicine, Jichang Road 12#, District Baiyun, Guangzhou, Guangdong, China
| | - Zhenhua Guan
- Yudu People's Hospital, Huancheng North Road 2#, District Yudu, Ganzhou, Jiangxi, China
| | - Yunfei Hou
- Peking University People's Hospital, Arthritis Clinic and Research Center Beijing, Beijing, China
| | - Qiang Liu
- Peking University People's Hospital, Arthritis Clinic and Research Center Beijing, Beijing, China
| | - Xiaobo Sun
- The First Clinical Medical School, Guangzhou University of Chinese Medicine, Jichang Road 12#, District Baiyun, Guangzhou, Guangdong, China
| | - Xingyang Zhu
- The First Clinical Medical School, Guangzhou University of Chinese Medicine, Jichang Road 12#, District Baiyun, Guangzhou, Guangdong, China
| | - Wenjun Feng
- Department of Orthopaedics, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Jichang Road 16#, District Baiyun, Guangzhou, Guangdong, China
| | - Jianchun Zeng
- Department of Orthopaedics, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Jichang Road 16#, District Baiyun, Guangzhou, Guangdong, China
| | - Zhangrong Zhong
- Yudu People's Hospital, Huancheng North Road 2#, District Yudu, Ganzhou, Jiangxi, China.
| | - Yirong Zeng
- Department of Orthopaedics, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Jichang Road 16#, District Baiyun, Guangzhou, Guangdong, China.
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17
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Lin W, Dai Y, Dong C, Piao K, Hao K, Wang F. Joint Awareness after Patellofemoral Arthroplasty Evaluated with the Forgotten Joint Score: A Comparison Study. Orthop Surg 2021; 13:833-839. [PMID: 33749150 PMCID: PMC8126918 DOI: 10.1111/os.12921] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 11/16/2020] [Accepted: 12/10/2020] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE The aim of the present study was to compare the forgotten joint score (FJS) in patients with isolated patellofemoral osteoarthritis who underwent patellofemoral arthroplasty (PFA) versus those who underwent total knee arthroplasty (TKA) and to analyze the predictors of the FJS after PFA. METHODS From January 2014 to December 2017, a retrospective cohort study of 56 consecutive patients with isolated patellofemoral osteoarthritis underwent PFA and were included in the PFA group. The patients in the PFA group were matched in a 1:1 ratio based on age, sex, body mass index (BMI), and follow-up duration; 56 patients with isolated patellofemoral osteoarthritis underwent cruciate-retaining TKA (TKA group). The FJS, range of motion of the knee, and Knee Society Score were assessed at 1 and 3 years postoperatively. In addition, the associations between the potential influencing factors (age, sex, BMI, and preoperative Iwano score of the patellofemoral joint) and the FJS were analyzed using multiple linear regression in the PFA group. RESULTS There were no significant differences between the PFA and TKA groups regarding age (P = 0.316), sex (P = 0.832), BMI (P = 0.447), and follow-up duration (P = 0.625). Postoperatively, the range of motion of the knee and Knee Society Score was significantly higher in the PFA group than the TKA group at both follow-up points (P < 0.05). The PFA group had a significantly higher mean FJS than the TKA group at 1 year postoperatively (62.9 ± 12.3 vs 54.1 ± 14.2, P = 0.034) and 3 years postoperatively (63.3 ± 14.1 vs 55.6 ± 16.4, P = 0.042). In the PFA group, multiple linear regression analysis showed that older age was positively correlated with the FJS, while a higher BMI was negatively correlated with the FJS. CONCLUSION The patients with isolated patellofemoral osteoarthritis who underwent PFA were more likely to forget the artificial joint and, consequently, may experience a higher degree of satisfaction. In addition, we identified two preoperative patient-related factors (age and BMI) that may predict the FJS after PFA, which might help in chosing the most appropriate operation.
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Affiliation(s)
- Wei Lin
- Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yike Dai
- Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Conglei Dong
- Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Kang Piao
- Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Kuo Hao
- Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Fei Wang
- Third Hospital of Hebei Medical University, Shijiazhuang, China
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18
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[Patellofemoral inlay implants-an innovation in patellofemoral joint arthroplasty?]. DER ORTHOPADE 2021; 50:136-142. [PMID: 33355685 DOI: 10.1007/s00132-020-04059-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Isolated arthrosis of the patellofemoral joint is a rare and complex disease. After conservative therapy has been exhausted, the orthopedist has various soft-tissue and bone reconstructive procedures as well as cartilage regenerative procedures at his hands. In cases of failed or unsatisfactory therapy, patellofemoral arthroplasty continues to be controversially discussed as an alternative therapy. A closer look at these studies reveals promising results with the correct indication and patient selection. The different prosthesis designs provide good postoperative results while considering general and specific risks. The current generation of patellofemoral inlay prostheses shows high patient satisfaction with significant improvements in knee function and pain relief in mid-term outcomes. However, a relatively high revision rate must be considered.
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Schneider BL, Ling DI, Kleebad LJ, Strickland S, Pearle A. Comparing Return to Sports After Patellofemoral and Knee Arthroplasty in an Age- and Sex-Matched Cohort. Orthop J Sports Med 2020; 8:2325967120957425. [PMID: 33088840 PMCID: PMC7543186 DOI: 10.1177/2325967120957425] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 04/27/2020] [Indexed: 11/17/2022] Open
Abstract
Background Return to sports is an important outcome in ensuring patient satisfaction after knee-replacement surgery. However, few studies have directly compared unicompartmental knee arthroplasty (UKA), total knee arthroplasty (TKA), and patellofemoral arthroplasty (PFA). Hypothesis TKA will result in lower rates of return to sports than either UKA and PFA due to increased complexity and invasiveness. Study Design Cohort study; Level of evidence, 3. Methods Patients who underwent UKA, TKA, or PFA with 1 to 2 years of follow-up were sent a questionnaire regarding return to sports, satisfaction with return to sports, pain, the University of California, Los Angeles activity scale, and the High Activity Arthroplasty Score (HAAS). The patients who underwent either TKA or UKA were matched 2:1 with regard to age and sex to patients who underwent PFA. Differences were compared using analysis of variance, t tests, and chi-square tests. Results A total of 202 patients were eligible. After matching, the final cohort consisted of 23 PFA patients, 46 UKA patients, and 46 TKA patients. The majority of patients were female (87%), and the mean ± SD age was 56 ± 9.1 years. The UKA group had higher HAAS values than the TKA group pre- and postoperatively (9.9 vs 7.1 [P = .001] and 12.4 vs 9.5 [P < .001], respectively). Patients with UKA had higher rates of return to sports after surgery than those with TKA or PFA (UKA, 80.5%; TKA, 71.7%; PFA, 69.5%; P = 0.08). In addition, the UKA group had the highest satisfaction with this outcome. Improvement between pre- and postoperative scores was similar in all 3 groups. Conclusion Patients who underwent UKA reported better activity scores and return-to-sports rates than patients who had TKA and PFA. No differences were found in improvement after surgery, suggesting that preoperative differences were reflected postoperatively. These findings inform shared decision making and can help to manage patient expectations after surgery.
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Affiliation(s)
- Brandon L Schneider
- Sports Medicine Institute, Hospital for Special Surgery, New York, New York, USA
| | - Daphne I Ling
- Sports Medicine Institute, Hospital for Special Surgery, New York, New York, USA.,Department of Healthcare Policy and Research, Weill Cornell Medical College, New York, New York, USA
| | - Laura J Kleebad
- Sports Medicine Institute, Hospital for Special Surgery, New York, New York, USA
| | - Sabrina Strickland
- Sports Medicine Institute, Hospital for Special Surgery, New York, New York, USA
| | - Andrew Pearle
- Sports Medicine Institute, Hospital for Special Surgery, New York, New York, USA
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