This group will receive Benson relaxation technique for duration up to 20 min twice daily in addition to medical therapy and a routine physical therapy program for 40 minutes, twice daily for 4 weeks.

This group will receive medical therapy and a routine physical therapy program for 40 minutes, twice daily for 4 weeks.

It will be performed every day, twice daily (in the morning and evening), for 4weeks, the Benson relaxation technique instruction included these steps.

1. Sit in a comfortable position.
2. Close their eyes.
3. Relax all their muscles beginning from the soles of the feet, moving forward up, and relax all parts of their body.

(4 ) Breath through their nose, pay attention to the sound of their breathing, and say the word ''one'' quietly to themselves when the breath is out.

(5) Continue for 20 min. the patients were instructed to check the time by opening their eyes. However, using an alarm was prohibited. The training sessions were held during the patients hospitalization period after one week from surgery, the technique continued during the hospitalization and after discharge from the hospital.

Visual analogue scale is a popularly used standardized scale for assessing pain intensity. It is 10 point horizontal line scale ranging from 0 to 10. The participants of both groups will be asked to mark the point representing their pain level before and after the intervention, with 0 meaning no pain and 10 meaning the worst pain.

The WHOQOL-BREF scale will be used to assess quality of life for all participants before and after the treatment program It is a 26-item instrument consisting of four domains: physical health (7 items), psychological health (6 items), social relationships (3 items), and environmental health (8 items); it also contains QOL and general health items. Each individual item of the WHOQOL-BREF is scored from 1 to 5 on a response scale, which is stipulated as a five-point ordinal scale. The scores are then transformed linearly to a 0-100-scale. The highest possible score on the WHOQOL-BREF scale is 100. This score represents the best possible quality of life.