Table 2. Contents of Intervention.

Time	Group
	Contents	Telephone Counseling Group	SMS Group
1, 3 weeks	Daily living management	How are you? I am nurse B at A hospital.	How are you?
		Do you have any discomfort or pain in daily living?	Do you have any discomfort or pain in daily living?
		Avoid hot tub bath or sauna and just have a light shower at home.	Avoid hot tub bath or sauna and just have a light shower at home.
	Inflammation management	What are most important after surgery are knee exercise and the observation of inflammatory symptoms at the surgical site. Check if the surgical site suddenly turns reddish or has severe flush.	What are most important after surgery are knee exercise and the observation of inflammatory symptoms at the surgical site. Check if the surgical site suddenly turns reddish or has severe flush.
	Exercise	For maintaining joint function after surgery, keep doing quadriceps femoris muscle strengthening exercise and knee exercise continuously.	For maintaining joint function after surgery, keep doing quadriceps femoris muscle strengthening exercise and knee exercise continuously.
	Reminding	The next outpatient visit is on MM/DD at HH o'clock.	The next outpatient visit is on MM/DD at HH o'clock.
		The next counseling will be on MM/DD at HH o'clock.	-Joint Center of A hospital
5, 7, 9 weeks	Daily living management	How are you? I am nurse B at A hospital.	How are you?
		How is your knee pain?	How is your knee pain?
		Avoid hot tub bath or sauna and just have a light shower at home.	Avoid hot tub bath or sauna and just have a light shower at home.
	Inflammation management	What are most important after surgery are knee exercise and the observation of inflammatory symptoms at the surgical site. Check if the surgical site suddenly turns reddish or has severe flush.	What are most important after surgery are knee exercise and the observation of inflammatory symptoms at the surgical site. Check if the surgical site suddenly turns reddish or has severe flush.
	Exercise	Keep doing knee bending, stretching exercise, and light walking exercise continuously.	Keep doing knee bending, stretching exercise, and light walking exercise continuously.
	Reminding	The next counseling will be on MM/DD at HH o'clock.	The next outpatient visit is on MM/DD at HH o'clock.
			-Joint Center of A hospital
11 weeks	Daily living management	How are you? I am nurse B at A hospital.	How are you?
		Do you have any discomfort or pain in daily living?	Do you have any discomfort or pain in daily living?
	Inflammation management	What are important for maintaining knee function are knee exercise and the observation of inflammatory symptoms at the surgical site.	What are important for maintaining knee function are knee exercise and the observation of inflammatory symptoms at the surgical site.
	Exercise	Indoor cycling or swimming is good for the knee joints. Keep doing exercise continuously.	Indoor cycling or swimming is good for the knee joints. Keep doing exercise continuously.
	Reminding	You must observe the dates of postoperative outpatient visit, and visit the hospital at least once for x-ray studies to check the stability of the knees and the condition of the artificial joint.	You must observe the dates of postoperative outpatient visit, and visit the hospital at least once for x-ray studies to check the stability of the knees and the condition of the artificial joint.
		The next outpatient visit is on MM/DD at HH o'clock.	The next outpatient visit is on MM/DD at HH o'clock.
			-Joint Center of A hospital