A previous clinical study was undertaken to evaluate the safety and efficacy of an anatomically shaped, flexible acetabular cup. Clinical results achieved were satisfactory, although some deficiencies in the model were identified. Design changes to the original model have been implemented to improve both initial stability and long term biological fixation. This was achieved through modifications made to both the anchoring mechanism and by the application of an appropriate backing surface layer promoting bone on-growth. In addition, changes to the articulation couple have also been introduced to improve implant durability and bearing performance, utilising a carbon fibre reinforced polyetheretherketone--alumina couple. Simulated loading, in both models, was performed using Finite Element Analysis. Mechanical and tribological tests were also performed to ensure the robustness of the new optimised design. Bio-compatibility of the articulation couple was demonstrated using an animal model. Implantation of the device has been extensively tested and re-validated in vitro to achieve a favourable polar contact between cup and femoral head and establish a reproducible operative technique. This preliminary work is undertaken prior to commencing a post market surveillance study of the CE marked implant.

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Objective: This study aims to determine level of stress, resilience and moral distress among health care providers during covid-19 pandemic. Methods: This is a cross-sectional study performed using an online questionnaire. Data was collected from Health Care Providers, working in various tertiary care hospitals of Lahore, using an online questionnaire. Perceived stress scale (PSS), Connor-Davidson Resilience Scale (CD-RISC 10) and Moral Distress Thermometer were used to determine level of stress, resilience and moral stress respectively among the HCPs. Scores on the PSS can range from 0 to 40 with scores of 0-13, 14-26 and 27-40 being considered as low, moderate and high stress respectively. The Moral Distress Thermometer has scores ranging from 0-10 with value of ≥4 considered high. Data was analyzed using SPSS version.23.Descriptive variables were reported as means and frequencies. Intergroup analysis was done using Chi square test with p<0.05 taken as significant. Results: A total of 278 (n=278) HCPs participated in study. According to the PSS (Perceived Stress Scale) scores, 5.03% (14) reported low, 86.69% (241) moderate and 8.27% (23) high stress levels. The mean stress score is 21.56+/-4.32. Providing patient care (mean = 2.28+/-1.15 SD) and transmitting infection to others (mean = 3.02+/-1.10 SD) were deemed major causes of stress. The mean CD-RISC score was 23.14+/-7.81 SD. Only 10.8% (30) had a score of ≥ 32. The mean Moral Distress score was 4.2+/-2.98 SD, with 53.2% (149) participants reporting high Moral distress (score ≥4). Conclusion: The high level of stress among HCPs during COVID-19 pandemic highlights the need of urgent measures to overcome this psychological issue which if left un-addressed can affect performance of HCPs. Key Words: Stress, Resilience, HCPs How to cite: Latif A., Yaqub S., Dar A.Q., Awan S.U., Farhat Hina., Khokhar A.M., Stress, Resilience and Moral Distress among Health care Providers during COVID-19 pandemic. Esculapio 2021;17 (01):79-82