Table XVIII indicates that there
was no statistically significant relationship between the subtypes and the
lifting effort. However, the risk was multiplied by 1.202 for median DH, 1.035
for posterolateral DH, and 1.300 for foraminal DH, respectively.
RELATIONSHIP BETWEEN THE SUBTYPES OF LDH AND
TRAUMATISM AS A TRIGGERING FACTOR.
The concept of trauma as a triggering factor was found in
11.9% of patients in our study. The table below summarizes its distribution.
Table XIX. Relationship between subtypes of hernia and
triggers (trauma)
|
Hernia subtype
|
Trauma
|
P
|
OR (IC à 95%)
|
|
Yes
|
No
|
|
Median hernia
|
|
|
|
|
|
Yes
No
|
4 (21, 1%)
15 (78, 9%)
|
76 (53, 9%)
65 (46, 1%)
|
0,255
|
1,901 (0,648 - 5,007)
|
|
Posterolateral hernia
|
|
|
|
|
|
Yes
No
|
10 (52, 6%)
9 (47, 4%)
|
75 (53, 2%)
66 (46, 8%)
|
0,963
|
0,978 (0,375 - 2,552)
|
|
Foraminal hernia
|
|
|
|
|
|
Yes
No
|
1 (96, 2%)
4 (3, 8%)
|
18 (97, 0%)
137 (3, 0%)
|
0,568
|
1,903 (0,201 - 17,976)
|
|
Extraforaminal hernia
|
|
|
|
|
|
yes
No
|
1 (96, 2%)
4 (3, 8%)
|
18 (97, 0%)
137 (3, 0%)
|
0,568
|
1,903 (0,201 - 17,976)
|
There is no statistically significant link between subtypes of
hernia and trauma. However, it should be noted that the risk was multiplied by
1.901 for the medial hernia, 1.903 for the foraminal hernia and 1.903 for the
extra foraminal hernia (Table XIX).
RELATIONSHIP BETWEEN THE SUBTYPES OF LDH AND SPORT AS
A TRIGGER FACTOR.
The concept of sport as a triggering factor was only found in
5.6% of the cases on our entire workforce. The table below summarizes its
distribution.
Table XX. Relationship between subtypes of hernia and sport
|
Hernia subtype
|
Sport
|
|
|
|
Yes
|
No
|
p
|
OR (IC à 95%)
|
|
Median hernia
|
|
|
|
|
|
Yes
No
|
0 (0, 0%)
9 (100, 0%)
|
80 (53, 0%)
71 (47, 0%)
|
0,002
|
0,470 (0,397 - 0,557)
|
|
Posterolateral hernia
|
|
|
|
|
|
Yes
No
|
8 (88, 9%)
1 (11, 1%)
|
77 (41, 0%)
74 (51, 0%)
|
0,027
|
7,688 (0,938 - 62,935)
|
|
Foraminal hernia
|
|
|
|
|
|
Yes
No
|
0 (0, 0%)
9 (100, 0%)
|
5 (3, 3%)
146 (96, 7%)
|
0,579
|
0,967 (0,939 - 0,996)
|
|
Extraforaminal hernia
|
|
|
|
|
|
yes
No
|
0 (0, 0%)
9 (100, 0%)
|
5 (3, 3%)
146 (96, 7%)
|
0,579
|
0,967 (0,939 - 0,996)
|
The median and posterolateral DH had a statistically
significant relationship with the sport with p = 0.002 and p = 0.027,
respectively. The risk was multiplied by 7.688 in the posterolateral hernia
(Table XX).
RELATIONSHIP BETWEEN THE SUBTYPES
OF LDH AND HYPERTROPHY OF YELLOW LIGAMENT AS AN ASSOCIATED PATHOLOGY.
Hypertrophy of the yellow ligament was the most
predominant associated pathology at 62.5%. Table XXI summarizes its
relationship with the various subtypes.
Table XXI. Relationship between subtypes of hernia and
hypertrophy of ligament.
|
Hernia subtypes
|
Hypertrophy of the yellow ligament
|
P
|
|
No
|
Yes
|
|
Number of patients
|
%
|
Number of patients
|
%
|
|
Median
Yes
No
|
7
|
61,7
|
43
|
43,0
|
0,022
|
|
23
|
38,3
|
57
|
57,0
|
|
Posterolateral hernia
|
|
|
|
|
|
|
Yes
No
|
15
|
25,0
|
60
|
60,0
|
?0,001
|
|
45
|
75,0
|
40
|
40,0
|
|
Foraminal hernia
|
|
|
|
|
|
|
Yes
No
|
60
|
100,0
|
95
|
95,0
|
0,078
|
|
0
|
0,0
|
5
|
5,0
|
|
Extraforaminal hernia
|
|
|
|
|
|
|
yes
No
|
55
|
91,7
|
100
|
100,0
|
0,003
|
|
5
|
8,3
|
0
|
0,0
|
Table XXI shows that three subtypes of posterior LDH had a
statistically significant relationship with hypertrophy of the yellow ligament:
p = 0.022 (median DH), p = 0.001 (posterolateral DH), p = 0.003 (extraforaminal
DH).RELATIONSHIP BETWEEN THE SUB-TYPES AND LOMBARTHROSIS
AS ASSOCIATED PATHOLOGY
The study sought to establish the link between subtypes of LDH
and lumbar spondylosis, which was present in 34.4% of the cases. This is well
illustrated in the table below.
Table XXII. Relationship between subtypes of hernia and
associated pathologies (lumbar spondylosis)
|
Hernia subtypes
|
LOMBARTHROSIS
|
P
|
|
No
|
Yes
|
|
Number of patients
|
%
|
Number of patients
|
%
|
|
|
Median hernia
Yes
No
|
62
|
59,0%
|
18
|
32,7%
|
0,002
|
|
43
|
41,0%
|
37
|
67,3%
|
|
Posterolateral hernia
|
|
|
|
|
|
|
Yes
No
|
45
|
42,9%
|
30
|
54,5%
|
0,159
|
|
60
|
57,1%
|
25
|
45,5%
|
|
Foraminal hernia
|
|
|
|
|
|
|
Yes
No
|
100
|
95,2%
|
55
|
100,0%
|
0,100
|
|
5
|
4,8%
|
0
|
0,0%
|
|
Extraforaminal hernia
|
|
|
|
|
|
|
yes
No
|
100
|
95,2%
|
55
|
100,0%
|
0,100
|
|
5
|
4,8%
|
0
|
0,0%
|
Table XXII shows that there is a statistically significant
relationship between the posteromedial subtype and lumbar spondylitis with a
value of P equals to 0.002.
|
|
