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Value of information analysis - Expected value of perfect information and expected value of parameter perfect information per notional patient. EVPI was based on 100,000 Monte Carlo iterations. EVPPI was based on 100 and 200 Monte Carlo iterations for the inner and outer loop, respectively. Abbreviations. Expected value of perfect information; EVPPI, expected value of parameter perfect information; NFR, no further repair; KR, knee replacement.
Source publication
Aims
For patients with cartilage defects of the knee, a new biocompatible and in situ cross-linkable albumin-hyaluronan-based hydrogel has been developed for matrix-associated autologous chondrocyte implantation (M-ACI) – NOVOCART Inject plus (Ninject; TETEC AG, Reutlingen, Germany). We aimed to estimate the potential cost-effectiveness of NInject,...
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Background
Stereotactic body radiotherapy (SBRT) is a novel radio-therapeutic technique that has recently emerged as standard-of-care treatment for medically inoperable, early-stage non-small cell lung cancer (NSCLC). In this study, we compared the cost-effectiveness of SBRT with that of conventional fractionated radiotherapy (CFRT) in patients wit...
Citations
Purpose
To compare short‐term patient‐reported outcomes (PRO) of two contemporary matrix‐associated autologous chondrocyte implantation (M‐ACI) products for the treatment of large articular cartilage defects of the knee.
Methods
A retrospective, registry‐based, matched‐pair analysis was performed, comparing PRO of patients undergoing isolated M‐ACI with either Spherox™, a spheroid‐based ACI (Sb‐ACI), or NOVOCART™ Inject, a hydrogel‐based ACI product (Hb‐ACI), for a focal full‐thickness cartilage defect of the knee ≥4 cm ² . Matching parameters included age, sex, body mass index, defect size, defect localization, symptom duration and previous surgeries. The Knee Injury and Osteoarthritis Outcome Score (KOOS) and the International Knee Documentation Committee (IKDC) score were obtained up to the 24‐month follow‐up. The total KOOS response rate and percentage of patients attaining a substantial clinical benefit (SCB) in KOOS subscores were calculated.
Results
A total of 45 patients per group were matched. The response rate after 24 months was not significantly different between the groups (Sb‐ACI 64.4% vs. Hb‐ACI 82.2%, p = 0.057). The number of patients with a SCB at 24 months was not significantly different in any KOOS subscore, despite significantly higher improvement of the total KOOS (14.8 ± 16.2 vs. 21.5 ± 15.4, p = 0.047) and KOOS pain in the Hb‐ACI group (12.2 ± 18.6 vs. 20.6 ± 19.1, p = 0.037). The IKDC score in the Hb‐ACI group was significantly higher at the 12‐ and 24‐month follow‐up (60.7 ± 20.2 vs. 70.9 ± 18.0, p = 0.013).
Conclusion
The response rate and number of patients achieving an SCB were not significantly different between patients treated with Sb‐ACI or Hb‐ACI. Both procedures can achieve favourable 2‐year PRO. Hb‐ACI was associated with better PRO between 1 and 2 years postoperatively; however, the clinical relevance of this benefit is yet to be proven.
Level of Evidence
III, Retrospective comparative study.
