Developing a personalized outcome prediction tool for knee arthroplasty

2020 ◽  
Vol 102-B (9) ◽  
pp. 1183-1193
Author(s):  
Hiba K. Anis ◽  
Gregory J. Strnad ◽  
Alison K. Klika ◽  
Alexander Zajichek ◽  
Kurt P. Spindler ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Knee Arthroplasty ◽  
Outcome Prediction ◽  
Cross Validation ◽  
High Accuracy ◽  
Prediction Tool ◽  
Patient Reported ◽  
One Year ◽  
Mean Square Errors

Aims The purpose of this study was to develop a personalized outcome prediction tool, to be used with knee arthroplasty patients, that predicts outcomes (lengths of stay (LOS), 90 day readmission, and one-year patient-reported outcome measures (PROMs) on an individual basis and allows for dynamic modifiable risk factors. Methods Data were prospectively collected on all patients who underwent total or unicompartmental knee arthroplasty at a between July 2015 and June 2018. Cohort 1 (n = 5,958) was utilized to develop models for LOS and 90 day readmission. Cohort 2 (n = 2,391, surgery date 2015 to 2017) was utilized to develop models for one-year improvements in Knee Injury and Osteoarthritis Outcome Score (KOOS) pain score, KOOS function score, and KOOS quality of life (QOL) score. Model accuracies within the imputed data set were assessed through cross-validation with root mean square errors (RMSEs) and mean absolute errors (MAEs) for the LOS and PROMs models, and the index of prediction accuracy (IPA), and area under the curve (AUC) for the readmission models. Model accuracies in new patient data sets were assessed with AUC. Results Within the imputed datasets, the LOS (RMSE 1.161) and PROMs models (RMSE 15.775, 11.056, 21.680 for KOOS pain, function, and QOL, respectively) demonstrated good accuracy. For all models, the accuracy of predicting outcomes in a new set of patients were consistent with the cross-validation accuracy overall. Upon validation with a new patient dataset, the LOS and readmission models demonstrated high accuracy (71.5% and 65.0%, respectively). Similarly, the one-year PROMs improvement models demonstrated high accuracy in predicting ten-point improvements in KOOS pain (72.1%), function (72.9%), and QOL (70.8%) scores. Conclusion The data-driven models developed in this study offer scalable predictive tools that can accurately estimate the likelihood of improved pain, function, and quality of life one year after knee arthroplasty as well as LOS and 90 day readmission. Cite this article: Bone Joint J 2020;102-B(9):1183–1193.

scholarly journals Outcomes of the rotating hinge knee in revision total knee arthroplasty with a median follow-up of 6.2 years

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Jake von Hintze ◽  
Mika Niemeläinen ◽  
Harri Sintonen ◽  
Jyrki Nieminen ◽  
Antti Eskelinen
Keyword(s):  
Quality Of Life ◽  
Total Knee Arthroplasty ◽  
Survival Rate ◽  
Knee Arthroplasty ◽  
Revision Total Knee Arthroplasty ◽  
Patient Reported ◽  
Total Knee ◽  
Revision Tka

Abstract Background The purpose of this study was to determine the mid-term clinical, radiographic and health-related quality of life (HRQoL) outcomes and define the survival rate in patients who had undergone revision total knee arthroplasty (TKA) using the single rotating hinged knee (RHK) design. Methods Between January 2004 and December 2013, 125 revision TKAs were performed at our institution using the single RHK implant. We conducted both a retrospective analysis of prospectively collected outcome data of these patients and a prospective follow-up study of all 39 living patients (41 knees). The follow-up phase included an optional extra follow-up visit, PROM questionnaires, and plain radiographs. Results The ten-year Kaplan-Meier survival rate of the revision RHK knees was 81.7% (95% CI 71.9–91.6%) with re-revision for any reason as the endpoint. Overall, 15 knees (12% of the total) underwent re-revision surgery during the follow-up. The median follow-up was 6.2 years (range, 0–12.7 years) post-operatively for the baseline group. One mechanical hinge mechanism-related failure occurred without any history of trauma or infection. At the time of the final follow-up, the majority of patients evinced a fairly good clinical outcome measured with patient-reported outcome measures and none of the components were radiographically loose. Conclusion We found that in patients undergoing complex revision TKA, fairly good functional outcome and quality of life can be achieved using an RHK implant. Further, it seems that in this type of patient cohort, revision TKA using an RHK implant relieves pain more than it improves ability to function. The NexGen® RHK design can be regarded as a suitable option in complex revision TKA.

scholarly journals Improved knee biomechanics among patients reporting a good outcome in knee-related quality of life one year after total knee arthroplasty

2017 ◽  
Vol 18 (1) ◽  
Author(s):  
Josefine E. Naili ◽  
Per Wretenberg ◽  
Viktor Lindgren ◽  
Maura D. Iversen ◽  
Margareta Hedström ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Knee Biomechanics ◽  
Good Outcome ◽  
Related Quality ◽  
Total Knee ◽  
One Year

scholarly journals Comparison of patient reported outcomes after Triathlon® and Kinemax Plus prostheses

2014 ◽  
Vol 96 (1) ◽  
pp. 61-66 ◽  
Author(s):  
S Dixon ◽  
AW Blom ◽  
MR Whitehouse ◽  
V Wylde
Keyword(s):  
Quality Of Life ◽  
Patient Reported Outcomes ◽  
Postal Questionnaire ◽  
Satisfaction Scale ◽  
Quality Of Life Scale ◽  
Patient Reported ◽  
Related Quality ◽  
One Year ◽  
And Function

INTRODUCTION The Triathlon® (Stryker, Kalamazoo, MI, US) total knee replacement was designed to improve patient function and survivorship. The aim of this study was to determine whether the Triathlon® prosthesis produces better patient reported outcomes than a previous design by the same manufacturer, the Kinemax Plus. METHODS The outcome of 233 knees of patients with a mean age of 68 years (range: 40–80 years) who received the Kinemax Plus prosthesis were compared with the outcomes of 220 knees of patients with a mean age of 70 years (range: 42–90 years) who received the Triathlon® prosthesis. Data were collected via postal questionnaire prior to surgery as well as at 8–12 weeks and at 1 year following surgery. Validated questionnaires were used including the WOMAC® (Western Ontario and McMaster Universities) pain and function scales, the Knee injury and Osteoarthritis Outcome Score quality of life scale and the self-administered patient satisfaction scale. RESULTS This study found that patients who had the Triathlon® prosthesis had significantly better pain relief (p<0.0001), function (p=0.028), knee related quality of life (p<0.0001) and satisfaction (p=0.0003) at three months after surgery than those who received the Kinemax Plus prosthesis. In addition, knee related quality of life (p=0.002) and satisfaction (p=0.021) were significantly higher at one year after surgery in Triathlon® patients. CONCLUSIONS The findings suggest that return to function and reduction in pain may occur more quickly in patients with a Triathlon® prosthesis than in those with the Kinemax Plus.

Patient-Reported Outcomes, Quality of Life, and Satisfaction Rates in Young Patients Aged 50 Years or Younger After Total Knee Arthroplasty

2017 ◽  
Vol 32 (2) ◽  
pp. 419-425 ◽  
Author(s):  
Graham Seow-Hng Goh ◽  
Ming Han Lincoln Liow ◽  
Hamid Rahmatullah Bin Abd Razak ◽  
Darren Keng-Jin Tay ◽  
Ngai-Nung Lo ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Patient Reported Outcomes ◽  
Young Patients ◽  
Patient Reported ◽  
Total Knee ◽  
Satisfaction Rates

scholarly journals Patient-reported Quality of Life Before and After Total Knee Arthroplasty: A Prospective Multicentre Cohort Study

2021 ◽  
Author(s):  
Jinghui Chang ◽  
Manru Fu ◽  
Peihua Cao ◽  
Changhai Ding ◽  
Dong Wang
Keyword(s):  
Quality Of Life ◽  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Family Income ◽  
Knee Function ◽  
Targeted Interventions ◽  
Patient Reported ◽  
Before And After ◽  
Total Knee

Abstract Background: To identify patients’ self-reported health-related quality of life (HRQoL) before and after total knee arthroplasty (TKA) and determine factors contributing to any heterogeneity in HRQoL. Methods: This prospective multicentre study included 404 patients with knee osteoarthritis who underwent TKA between 1 April and 30 December 2019 and in whom HRQoL was assessed preoperatively and at 7 days and 1, 3, and 6 months postoperatively. Sociodemographic characteristics were assessed using a general information questionnaire; disability, using the Knee Injury and Osteoarthritis Outcome Score; pain, using the visual analogue scale (VAS) score; and HRQoL, using the European Quality of Life Five Dimension Five Level (EQ-5D-5L) score. Potential heterogeneity and factors influencing longitudinal changes in HRQoL were analysed using a growth mixture model.Results: The mean EQ-5D-5L score improved from 0.69 preoperatively to 0.90 at 6 months postoperatively. Two types of longitudinal heterogeneity were identified: (1) a group of patients with a small and slow improvement in HRQoL and (2) a group of patients who showed marked and rapid improvement in HRQoL. The main characteristics of the latter group were a monthly family income >2000 yuan, exercising for approximately 30 min daily, and better knee function at baseline. Baseline knee function and change in knee function were significantly associated with the percentage change in HRQoL.Conclusions: HRQoL improved considerably after TKA. However, there was some heterogeneity in the changes in HRQoL depending on certain patient characteristics. Targeted interventions should focus on these differences to optimise the outcomes of TKA.

scholarly journals Orthopaedic registries with patient-reported outcome measures

2019 ◽  
Vol 4 (6) ◽  
pp. 357-367 ◽  
Author(s):  
Ian Wilson ◽  
Eric Bohm ◽  
Anne Lübbeke ◽  
Stephen Lyman ◽  
Søren Overgaard ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Patient Reported Outcome Measures ◽  
Patient Reported Outcome ◽  
Medical Professional ◽  
Patient Reported ◽  
Measuring Outcomes ◽  
Total Knee ◽  
One Year ◽  
Value Based Care

Total joint arthroplasty is performed to decreased pain, restore function and productivity and improve quality of life. One-year implant survivorship following surgery is nearly 100%; however, self-reported satisfaction is 80% after total knee arthroplasty and 90% after total hip arthroplasty. Patient-reported outcomes (PROs) are produced by patients reporting on their own health status directly without interpretation from a surgeon or other medical professional; a PRO measure (PROM) is a tool, often a questionnaire, that measures different aspects of patient-related outcomes. Generic PROs are related to a patient’s general health and quality of life, whereas a specific PRO is focused on a particular disease, symptom or anatomical region. While revision surgery is the traditional endpoint of registries, it is blunt and likely insufficient as a measure of success; PROMs address this shortcoming by expanding beyond survival and measuring outcomes that are relevant to patients – relief of pain, restoration of function and improvement in quality of life. PROMs are increasing in use in many national and regional orthopaedic arthroplasty registries. PROMs data can provide important information on value-based care, support quality assurance and improvement initiatives, help refine surgical indications and may improve shared decision-making and surgical timing. There are several practical considerations that need to be considered when implementing PROMs collection, as the undertaking itself may be expensive, a burden to the patient, as well as being time and labour intensive. Cite this article: EFORT Open Rev 2019;4 DOI: 10.1302/2058-5241.4.180080

Functional and Quality of Life Outcomes of Surgery for Degenerative Cervical Myelopathy: a Quality Improvement Study

2020 ◽  
Author(s):  
Babak Mirzashahi ◽  
Pejman Mansouri ◽  
Arvin Najafi ◽  
Saeed Besharati ◽  
Mohammad Taha Kouchakinejad ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Cervical Myelopathy ◽  
Short Form ◽  
Sf 36 ◽  
Patient Reported ◽  
Vas Scores ◽  
One Year ◽  
Degenerative Cervical Myelopathy

Background: This study aimed to determine the outcome of surgical treatments in patients with degenerative cervical myelopathy (DCM). During one-year follow-up period, we evaluated patient-reported functional and quality of life (QOL) measures.   Methods: In a retrospective single-center study, we collected data of patients with DCM who underwent cervical fusion surgeries in Imam Khomeini Hospital, Tehran, Iran, from 2011 to 2015. Patients underwent single or multi-level anterior cervical discectomy and fusion (ACDF), anterior cervical corpectomy and fusion (ACCF), or posterior laminectomy and fusion. We utilized patient-reported assessments including Short Form 36 (SF-36), Visual Analogue Scale (VAS), Neck Disability Index (NDI), and Nurick grade. Follow-up was performed at 6 weeks, 3 months, 6 months, and 12 months post-operatively to assess the outcome of surgery.   Results: Ninety patients (56 men, 34 women) with a mean age of 54.1 (27-87) years were included. Comparison of pre- and post-operative scores showed significant improvement in SF-36 parameters, VAS, NDI, and Nurick grade (P < 0.001). Also, women’s VAS scores improved more than men's VAS scores during the follow-up period (P < 0.050). Age and type of surgery did not significantly affect the SF-36 parameters, VAS, NDI, and Nurick grade (P > 0.05).   Conclusions: Cervical surgeries in patients with different severity of DCM can improve different aspects of QOL during one-year after surgery

Patient-reported outcomes are independent predictors of one-year mortality and cardiac events across cardiac diagnoses: Findings from the national DenHeart survey

2018 ◽  
Vol 26 (6) ◽  
pp. 624-637 ◽  
Author(s):  
Selina K Berg ◽  
Charlotte B Thorup ◽  
Britt Borregaard ◽  
Anne V Christensen ◽  
Lars Thrysoee ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Hospital Discharge ◽  
Patient Reported Outcomes ◽  
Severe Symptom ◽  
Poor Quality ◽  
Anxiety And Depression ◽  
Cardiac Events ◽  
Patient Reported ◽  
One Year

Aims Patient-reported quality of life and anxiety/depression scores provide important prognostic information independently of traditional clinical data. The aims of this study were to describe: (a) mortality and cardiac events one year after hospital discharge across cardiac diagnoses; (b) patient-reported outcomes at hospital discharge as a predictor of mortality and cardiac events. Design A cross-sectional survey with register follow-up. Methods Participants: All patients discharged from April 2013 to April 2014 from five national heart centres in Denmark. Main outcomes Patient-reported outcomes: anxiety and depression (Hospital Anxiety and Depression Scale); perceived health (Short Form-12); quality of life (HeartQoL and EQ-5D); symptom burden (Edmonton Symptom Assessment Scale). Register data: mortality and cardiac events within one year following discharge. Results There were 471 deaths among the 16,689 respondents in the first year after discharge. Across diagnostic groups, patients reporting symptoms of anxiety had a two-fold greater mortality risk when adjusted for age, sex, marital status, educational level, comorbidity, smoking, body mass index and alcohol intake (hazard ratio (HR) 1.92, 95% confidence interval (CI) 1.52–2.42). Similar increased mortality risks were found for patients reporting symptoms of depression (HR 2.29, 95% CI 1.81–2.90), poor quality of life (HR 0.46, 95% CI 0.39–0.54) and severe symptom distress (HR 2.47, 95% CI 1.92–3.19). Cardiac events were predicted by poor quality of life (HR 0.71, 95% CI 0.65–0.77) and severe symptom distress (HR 1.58, 95% CI 1.35–1.85). Conclusions Patient-reported mental and physical health outcomes are independent predictors of one-year mortality and cardiac events across cardiac diagnoses.

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