Intervention protocol for patients' post knee joint replacement is considered a strategy for
promoting their knowledge and self-efficacy at home and in the community. Aim: The study
aimed to determine the effect of intervention protocol implementation on self-efficacy of
patients' post knee joint replacement through: 1) Assessing knowledge and self-efficacy of
patients' post -knee joint replacement. 2) Designing and implementing intervention protocol post
knee joint replacement. 3) Evaluating the effect of implementing intervention protocol on self-
efficacy of patients' post knee joint replacement. Study design: A quasi-experimental (pre/post
tset) design was utilized to conduct this study. Setting: This study was conducted in joint
orthopedic outpatient clinics at El-Demerdash Surgical Hospital which is affiliated to Ain Shams
University Hospitals. Subject: A purposive sample of 193 adult patients from both genders was
recruited for conducting this study. Data collection: 1) Patients' interviewing questionnaire. 2)
Patients' self-efficacy scale. Results: The present study revealed a significant difference
between the studied patients regarding their knowledge and self-efficacy before and after
intervention protocol implementation. Conclusion: The implementing intervention protocol had
a positive effect on improving knowledge and self-efficacy of patients' post knee joint
replacement. Recommendations: Setup a training program for patients post knee joint
replacement that aims to improve patients' self-care. Replication of the current study on a larger
sample and different hospitals and community settings in order to generalize the results