Output Explorer

12.2 Gender
Number of knee operations carried out on patients with admission date between 1st July
2000 and 31st December 2013, according to type of operation and gender of patients
Moles
temples
N.
N.
N.
16.373
28,0
42.145
72,0
58.518
Unicompartmental
2.519
32,7
5.189
67.3
7.708
Revision
1 . 159
26,0
3.295
74,0
4.454
Prosthesis removal
368
37.3
618
62. 7
986
Patella only
141
24,6
132
75,4
573
Total
20.560
28,5
51.679
71,5
72.239
12.3 Side of surgery
There is a prevalence of operations performed on the right side (55,0%) in comparison with
the left side (45,0%). The percentage was calculated on patients affected by primary
arthritis, on first side operated
Percentage
Side
Male
Right
51.5
56.5
Left
48,5
43,5
Difference is statistically significant (Chi - squared p<0.001).
12.4 Bilateral arthroplasty
In the period of registry observation (14 years), 10.069 patients underwent bilateral
operations.
8.597 (85,4%) chose to undergo the second operation at the same hospital from where
the first one was performed.
469 (4,7%) chose to undergo the second operation at a different hospital from where the
first one was performed to follow the surgeon.
1.003 (10,0%) chose to undergo the second operation at a different hospital from where
the first one was performed.
In bilateral operations, it was observed that the first knee to be treated was the right one
in 54,1% of cases.
12.5 Diseases treated with unicompartmental knee prosthesis
Number of primary unicompartmental knee prosthesis operations carried out on patients
with admission date between ist July 2000 and 31st December 2013, according to
diagnosis
Diagnosis in unicomp to
Number
Percentage
Primary arthritis
6.606
85,9
Necrosis of the condyle
398
Deformity
419
5.2
5,4
Post-traumatic arthritis
86
Post-traumatic necrosis
64
0,8
Idiopathic necrosis
33
0,4
72
Source: https://www.industrydocuments.ucsf.edu/docs/hjxn0226

Answer the question using only the OCR text from a single document page. Return only the answer, with no explanation. Preserve the answer wording from the OCR text when possible.