Number of surgeries undergone
A total of 682 surgeries have been performed by 168 patients, ranging from 2~42 surgeries per patient, of which 56 (34.1%) patients have undergone more than 4 surgeries and 13 (7.9%) patients have undergone more than 10 surgeries. These patients underwent an average of 0.2~12 surgeries per year, of which 18 (11%) patients had an average of more than 4 surgeries per year.
JO-RRP patients underwent an average of 3.4 surgeries per year.36 (61%) underwent more than 2 surgeries per year, and 14 (23.7%) underwent an average of more than 4 surgeries per year. The number of surgeries of these patients decreased with age, and patients aged 0~6, 6~12 and 12~18 years experienced an average of 4.3, 3.1 and 1.6 surgeries per year, respectively.
AO-RRP patients underwent an average of 1.8 surgeries per person per year, of which 36 (33%) underwent an average of no more than 1 surgery per year, 98 (90%) underwent an average of no more than 3 surgeries per year, and only 4 (3.7%) underwent an average of more than 4 surgeries per year. There was no significant difference in the number of surgeries experienced per year for patients of three different age groups.
The average number of surgeries per year for different age groups in the JO-RRP and AO-RRP groups is shown in Fig.1.