scholarly journals Early migration of a medially stabilized total knee arthroplasty

2021 ◽  
Vol 2 (9) ◽  
pp. 737-744
Author(s):  
Frank-David Øhrn ◽  
Øystein Bjerkestrand Lian ◽  
Masako Tsukanaka ◽  
Stephan Maximillian Röhrl
Keyword(s):  
Knee Kinematics ◽  
Patient Reported Outcome ◽  
Measure Data ◽  
Lateral Part ◽  
Early Migration ◽  
Patient Reported ◽  
Medial Pivot ◽  
Total Knee ◽  
Pain Symptoms ◽  
Total Point

Aims Medial pivot (MP) total knee arthroplasties (TKAs) were designed to mimic native knee kinematics with their deep medial congruent fitting of the tibia to the femur almost like a ball-on-socket, and a flat lateral part. GMK Sphere is a novel MP implant. Our primary aim was to study the migration pattern of the tibial tray of this TKA. Methods A total of 31 patients were recruited to this single-group radiostereometric analysis (RSA) study and received a medial pivot GMK Sphere TKA. The distributions of male patients versus female patients and right versus left knees were 21:10 and 17:14, respectively. Mean BMI was 29 kg/m2 (95% confidence interval (CI) 27 to 30) and mean age at surgery was 63 years (95% CI 61 to 66). Maximum total point motions (MTPMs), medial, proximal, and anterior translations and transversal, internal, and varus rotations were calculated at three, 12, and 24 months. Patient-reported outcome measure data were also retrieved. Results MTPMs at three, 12, and 24 months were 1.0 mm (95% CI 0.8 to 1.2), 1.3 mm (95% CI 0.9 to 1.7), and 1.4 mm (0.8 to 2.0), respectively. The Forgotten Joint Score was 79 (95% CI 39 to 95) and Knee Injury and Osteoarthritis Outcome Score obtained at two years was 94 (95% CI 81 to 100), 86 (95% CI 75 to 93), 94 (95% CI 88 to 100), 69 (95% CI 48 to 88), and 81 (95% CI59 to 100) for Pain, Symptoms, Activities of Daily Living, Sport & Recreation, and Quality of Life, respectively. Conclusion In conclusion, we found that the mean increase in MTPM was lower than 0.2 mm between 12 and 24 months and thus apparently stable. Yet the GMK Sphere had higher migration at one and two years than anticipated. Based on current RSA data, we therefore cannot conclude on the long-term performance of the implant, pending further assessment. Cite this article: Bone Jt Open 2021;2(9):737–744.

Midterm results of a new personalized knee implant for total knee arthroplasty: implant survivorship and patient-reported outcome after five years’ follow-up

2021 ◽  
Author(s):  
Cristina Dauder Gallego ◽  
Irene Blanca Moreno Fenoll ◽  
José Luis Patiño Contreras ◽  
Francisco Javier Moreno Coronas ◽  
María del Carmen Torrejón de la Cal ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Patient Reported Outcome ◽  
Midterm Results ◽  
Implant Survivorship ◽  
Patient Reported ◽  
Total Knee

scholarly journals The ENDOPAIN 4D Questionnaire: A New Validated Tool for Assessing Pain in Endometriosis

2021 ◽  
Vol 10 (15) ◽  
pp. 3216
Author(s):  
Anne Puchar ◽  
Pierre Panel ◽  
Anne Oppenheimer ◽  
Joseph Du Cheyron ◽  
Xavier Fritel ◽  
...  
Keyword(s):  
Minimal Clinically Important Difference ◽  
Patient Reported Outcome ◽  
Measurement Properties ◽  
Dimensional Structure ◽  
Clinically Important Difference ◽  
Urinary Tract Symptoms ◽  
New Instrument ◽  
Patient Reported ◽  
Good Internal Consistency ◽  
Pain Symptoms

Objectives: To study the measurement properties, the responsiveness and the minimal clinically important difference of the ENDOPAIN-4D: a new questionnaire for assessing pain in endometriosis. Methods: A prospective, observational, multicentre study was conducted including all women ≥18 years consulting for symptomatic proven endometriosis between 1 January 2017 and 30 June 2018 and volunteering to participate. Each patient had to answer a new self-administered patient-reported outcome (PRO) questionnaires (the ENDOPAIN-4D) at inclusion (T0) and 12 months after medical or surgical treatment (T1). Criteria defined by COSMIN were used to validate the questionnaire's measurement properties. The minimal clinically important difference was estimated by the anchor-based method. Results: The study included 199 women. The ENDOPAIN-4D score had a four dimensional structure with good internal consistency (measured by Cronbach α): I) pain-related disability (α = 0.79), II) painful bowel symptoms (α = 0.80), III) dyspareunia (α = 0.83), and IV) painful urinary tract symptoms (α = 0.77). They produced four subscores that can be summed to obtain a single score (α = 0.61). The ENDOPAIN-4D total score ranged from 0 to 94.00 (mean ± SD: 46.7 ± 22). The total score was significantly correlated with the PROs used in endometriosis. Sensitivity to change was good with large effect sizes (ES) (mean of the differences: 36.3 p = 1.8 10−7, ES 0.76). The minimal clinically important difference of the global score was determined to be 10.9. Conclusions: The ENDOPAIN-4D questionnaire is easy to use, valid, and effective in assessing patient reported pain symptoms in women treated for endometriosis. This new instrument can be used as the primary outcome for future clinical trials and as a tool for routine patient follow-up.

Postoperative Range of Motion Does Not Correlate with Patient Reported Outcome Scores in Asians after Total Knee Arthroplasty

2014 ◽  
Vol 29 (12) ◽  
pp. 2285-2288 ◽  
Author(s):  
En Loong Soon ◽  
Hamid Rahmatullah bin Abd Razak ◽  
Chuen Seng Tan ◽  
Hwee Chye Andrew Tan
Keyword(s):  
Total Knee Arthroplasty ◽  
Range Of Motion ◽  
Knee Arthroplasty ◽  
Patient Reported Outcome ◽  
Patient Reported ◽  
Outcome Scores ◽  
Total Knee

No differences in patient-reported outcomes between medial pivot insert and symmetrical insert in total knee arthroplasty: A randomized analysis

The Knee ◽  
2018 ◽  
Vol 25 (6) ◽  
pp. 1254-1261 ◽  
Author(s):  
Kohei Nishitani ◽  
Moritoshi Furu ◽  
Shinichiro Nakamura ◽  
Shinichi Kuriyama ◽  
Masahiro Ishikawa ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Patient Reported Outcomes ◽  
Patient Reported ◽  
Medial Pivot ◽  
Total Knee

Trust compliance with best practice tariff criteria for total hip and knee replacement

2019 ◽  
Vol 80 (9) ◽  
pp. 537-540
Author(s):  
Ivor Vanhegan ◽  
Andrew Sankey ◽  
Warwick Radford ◽  
Simon Ball ◽  
Charles Gibbons
Keyword(s):  
Knee Replacement ◽  
Best Practice ◽  
Outcome Measure ◽  
Participation Rate ◽  
Patient Reported Outcome ◽  
Measure Data ◽  
National Joint Registry ◽  
Joint Registry ◽  
Patient Reported Outcome Measure ◽  
Patient Reported

Background: Satisfaction of the best practice tariff criteria for primary hip and knee replacement enables on average an additional £560 of reimbursement per case. The Getting it Right First Time report highlighted poor awareness of these criteria among orthopaedic departments. Methods: The authors investigated the reasons for non-compliance with the best practice tariff criteria at their trust and implemented a quality improvement approach to ensure successful adherence to the standards (a minimum National Joint Registry compliance rate of 85%, a National Joint Registry unknown consent rate below 15%, a patient-reported outcome measure participation rate of ≥50%, and an average health gain not significantly below the national average). This was investigated using quarterly online reports from the National Joint Registry and NHS Digital. Results: Initially, the trust had a 31% patient-reported outcome measures participation rate arising from a systematic error in the submission of preoperative patient-reported outcome measure scores. Re-audit following the resubmission of patient-reported outcome measure data under the trust's correct organization data service code confirmed an improvement in patient-reported outcome measure compliance to 90% and satisfaction of all criteria resulting in over £450 000 of additional reimbursement to the trust. Conclusions: The authors would urge others to review their compliance with these four best practice tariff criteria to ensure that they too are not missing out on this significant reimbursement sum.

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