Comparison of Patient Satisfaction Between Medial Pivot Prostheses and Posterior‐Stabilized Prostheses in Total Knee Arthroplasty

Objective To compare medial pivot (MP) prostheses to two types of posterior‐stabilized (PS) prostheses (NexGen and NRG) in terms of patient satisfaction, causes of dissatisfaction, and risk factors for dissatisfaction after total knee arthroplasty (TKA). Methods A total of 453 patients who underwent...

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Main Authors: Yuanyuan Lin, Xueyan Chen, Li Li, Zhenxing Li, Yu Zhang, Pei Fan
Format: Article
Language:English
Published: Wiley 2020-06-01
Series:Orthopaedic Surgery
Subjects:
Online Access:https://doi.org/10.1111/os.12687
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author Yuanyuan Lin
Xueyan Chen
Li Li
Zhenxing Li
Yu Zhang
Pei Fan
author_facet Yuanyuan Lin
Xueyan Chen
Li Li
Zhenxing Li
Yu Zhang
Pei Fan
author_sort Yuanyuan Lin
collection DOAJ
description Objective To compare medial pivot (MP) prostheses to two types of posterior‐stabilized (PS) prostheses (NexGen and NRG) in terms of patient satisfaction, causes of dissatisfaction, and risk factors for dissatisfaction after total knee arthroplasty (TKA). Methods A total of 453 patients who underwent primary TKA by one senior surgeon from August 2016 to August 2018 were investigated in a retrospective study, including 121, 219, and 113 patients in the MP, NexGen, and NRG groups, respectively. The mean age and follow‐up time of patients were 70.82 ± 7.06 years and 20.64 ± 3.88 months. A survey was designed and responses were collected by telephone, WeChat, and outpatient follow up. Patient satisfaction, causes of dissatisfaction, post‐TKA pain on a numeric rating scale (NRS), and range of motion (ROM) were compared among groups, and risk factors were investigated. Patient satisfaction included a five‐level satisfaction rating (very satisfied, satisfied, neutral, dissatisfied, or very dissatisfied), with five options for causes of dissatisfaction (persistent pain, limited ROM, knee instability, asthenia, and/or other factors). Results Overall, 89.84% of patients were satisfied with the results of primary TKA. There were no significant differences among the three groups regarding the side of the operation, the length of hospitalization in days, or the average follow‐up time. Patient satisfaction was similar among the MP (87.38%), NexGen (89.89%), and NRG groups (90.32%). Persistent pain after TKA was the major cause of dissatisfaction (32/40), but no difference in the frequency of this complaint was found among the groups (P = 0.663). The NRS score (P = 0.598) and the ROM (P = 0.959) of the MP group were not significantly different from those of the NexGen and NRG groups. Gender, length of hospitalization, and follow‐up time were all uncorrelated with patient satisfaction, but age showed a very weak correlation with patient satisfaction (r = 0.110, P = 0.033). Moreover, the NRS score (r = 0.459, P < 0.000) and the ROM (r = −0.175, P = 0.001) were significantly correlated with patient dissatisfaction. The odds ratio of dissatisfaction was 6.37 (P < 0.000) in patients with moderate to severe pain (NRS ≥ 3) compared to patients with mild pain (NRS < 3). Conclusion Patient satisfaction and function were not found to be higher in the MP group than in the two PS groups, and persistent pain was the major cause of and an important risk factor for patient dissatisfaction.
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spelling doaj.art-bb0d395dbd474f0baea818d6e9ddbcd22022-12-21T23:04:40ZengWileyOrthopaedic Surgery1757-78531757-78612020-06-0112383684210.1111/os.12687Comparison of Patient Satisfaction Between Medial Pivot Prostheses and Posterior‐Stabilized Prostheses in Total Knee ArthroplastyYuanyuan Lin0Xueyan Chen1Li Li2Zhenxing Li3Yu Zhang4Pei Fan5Department of Orthopedics The Second Affiliated Hospital of Wenzhou Medical University, Yuying Children's Hospital Wenzhou ChinaDepartment of Orthopedics The Second Affiliated Hospital of Wenzhou Medical University, Yuying Children's Hospital Wenzhou ChinaDepartment of Anesthesiology The Second Affiliated Hospital of Wenzhou Medical University, Yuying Children's Hospital Wenzhou ChinaDepartment of Orthopedics The Second Affiliated Hospital of Wenzhou Medical University, Yuying Children's Hospital Wenzhou ChinaDepartment of Orthopedics The Second Affiliated Hospital of Wenzhou Medical University, Yuying Children's Hospital Wenzhou ChinaDepartment of Orthopedics The Second Affiliated Hospital of Wenzhou Medical University, Yuying Children's Hospital Wenzhou ChinaObjective To compare medial pivot (MP) prostheses to two types of posterior‐stabilized (PS) prostheses (NexGen and NRG) in terms of patient satisfaction, causes of dissatisfaction, and risk factors for dissatisfaction after total knee arthroplasty (TKA). Methods A total of 453 patients who underwent primary TKA by one senior surgeon from August 2016 to August 2018 were investigated in a retrospective study, including 121, 219, and 113 patients in the MP, NexGen, and NRG groups, respectively. The mean age and follow‐up time of patients were 70.82 ± 7.06 years and 20.64 ± 3.88 months. A survey was designed and responses were collected by telephone, WeChat, and outpatient follow up. Patient satisfaction, causes of dissatisfaction, post‐TKA pain on a numeric rating scale (NRS), and range of motion (ROM) were compared among groups, and risk factors were investigated. Patient satisfaction included a five‐level satisfaction rating (very satisfied, satisfied, neutral, dissatisfied, or very dissatisfied), with five options for causes of dissatisfaction (persistent pain, limited ROM, knee instability, asthenia, and/or other factors). Results Overall, 89.84% of patients were satisfied with the results of primary TKA. There were no significant differences among the three groups regarding the side of the operation, the length of hospitalization in days, or the average follow‐up time. Patient satisfaction was similar among the MP (87.38%), NexGen (89.89%), and NRG groups (90.32%). Persistent pain after TKA was the major cause of dissatisfaction (32/40), but no difference in the frequency of this complaint was found among the groups (P = 0.663). The NRS score (P = 0.598) and the ROM (P = 0.959) of the MP group were not significantly different from those of the NexGen and NRG groups. Gender, length of hospitalization, and follow‐up time were all uncorrelated with patient satisfaction, but age showed a very weak correlation with patient satisfaction (r = 0.110, P = 0.033). Moreover, the NRS score (r = 0.459, P < 0.000) and the ROM (r = −0.175, P = 0.001) were significantly correlated with patient dissatisfaction. The odds ratio of dissatisfaction was 6.37 (P < 0.000) in patients with moderate to severe pain (NRS ≥ 3) compared to patients with mild pain (NRS < 3). Conclusion Patient satisfaction and function were not found to be higher in the MP group than in the two PS groups, and persistent pain was the major cause of and an important risk factor for patient dissatisfaction.https://doi.org/10.1111/os.12687ArthroplastyKneePatient satisfactionProstheses and implantsReplacement
spellingShingle Yuanyuan Lin
Xueyan Chen
Li Li
Zhenxing Li
Yu Zhang
Pei Fan
Comparison of Patient Satisfaction Between Medial Pivot Prostheses and Posterior‐Stabilized Prostheses in Total Knee Arthroplasty
Orthopaedic Surgery
Arthroplasty
Knee
Patient satisfaction
Prostheses and implants
Replacement
title Comparison of Patient Satisfaction Between Medial Pivot Prostheses and Posterior‐Stabilized Prostheses in Total Knee Arthroplasty
title_full Comparison of Patient Satisfaction Between Medial Pivot Prostheses and Posterior‐Stabilized Prostheses in Total Knee Arthroplasty
title_fullStr Comparison of Patient Satisfaction Between Medial Pivot Prostheses and Posterior‐Stabilized Prostheses in Total Knee Arthroplasty
title_full_unstemmed Comparison of Patient Satisfaction Between Medial Pivot Prostheses and Posterior‐Stabilized Prostheses in Total Knee Arthroplasty
title_short Comparison of Patient Satisfaction Between Medial Pivot Prostheses and Posterior‐Stabilized Prostheses in Total Knee Arthroplasty
title_sort comparison of patient satisfaction between medial pivot prostheses and posterior stabilized prostheses in total knee arthroplasty
topic Arthroplasty
Knee
Patient satisfaction
Prostheses and implants
Replacement
url https://doi.org/10.1111/os.12687
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