Knee injuries in statistics. A retrospective analysis of patients from 1980-81 to 2000-01 in Pas de la Casa-Grau Roig (Andorra) Guirro Castellnou.P, Escoda Alegret.B, Escoda Sales.JM, Escoda Alegret.A Centre Mèdic Pas de la Casa – Grau Roig, Andorra
Knee injuries in statistics. A retrospective analysis of patients from 1980-81 to 2000-01 in Pas de
la Casa-Grau Roig (Andorra)
Guirro Castellnou.P, Escoda Alegret.B, Escoda Sales.JM, Escoda Alegret.A
Centre Mèdic Pas de la Casa – Grau Roig, Andorra
INTRODUCTION
• Pas de la Casa - Grau Roig– Is a part of GrandValira since 2003– This research took into account only
skiers injured in Pas de la Casa and Grau Roig
INTRODUCTION• Increasing number of skiers
– This sport became increasingly popular during the 20-year period studied
• Knee injuries– We felt that these injuries have become
the most prevalent among skiers
• Two decades of evolution– We researched between the 1980-81
season and the 2000-01 season
GOALS• To observe the evolution of the
number of injuries in this period
• To analyse the prevalence of knee injuries
• To analyse the prevalence of knee injuries by gender
• To analyse women’s knee injuries by age group
RESULTS
EVOLUTION OF SKI INJURIES FROM 80-81 TO 00-01
1012
1815 1961
2470
4242
0
500
1000
1500
2000
2500
3000
3500
4000
4500
80-81 85-86 90-91 95-96 00-01
SEASON
NU
MB
ER
OF
SK
I IN
JU
RIE
S
SKI INJURIES IN 95-96 SEASON
EVOLUTION OF KNEE INJURIES FROM 80-81 TO 00-01
262
600 629
868
1332
0
200
400
600
800
1000
1200
1400
80-81 85-86 90-91 95-96 00-01
SEASON
NU
MB
ER
OF
KN
EE
INJ
UR
IES
EVOLUTION OF KNEE INJURIES (%)
26
33 3235
31
0
5
10
15
20
25
30
35
40
80-81 85-86 90-91 95-96 00-01
SEASON
%
Mean: 31,4 %
% REPRESENTING KNEE OF THE TOTAL OF INJURIES THAT NEEDED SNOW-BOAT
40
46 4649
46 48 46 46 46 47 48
0
15
30
45
60
90-91 91-92 92-93 93-94 94-95 95-96 96-97 97-98 98-99 99-00 00-01
SEASON
DIFFERENCES BETWEEN MEN AND WOMEN
4338 40
37 39
5762 60
63 61
0
10
20
30
40
50
60
70
80
80-81 85-86 90-91 95-96 00-01
SEASON
%
MEN
WOMEN
WOMEN'S KNEE INJURIES BY AGE GROUP
31
3739
3336
30
2628 29 28
15 15
15
10 10
1916
13
1715
5 6 5
11 11
0
5
10
15
20
25
30
35
40
45
80-81 85-86 90-91 95-96 00-01
SEASON
%
<15
16-25
26-35
36-45
>45
2647
74
135
78
145
101
185 177
296
0
50
100
150
200
250
300
350
NU
MB
ER
OF
KN
EE
INJU
RIE
S
80-81 85-86 90-91 95-96 00-01
SEASON
COMPARISON BETWEEN MEN AND WOMEN AGED 16-25
MEN
WOMEN
Comparison: Ratio Women/Men by age
1.81 1.82 1.86 1.83
1.67
1.33
1.63
1.50
1.70
1.56
1.00
1.20
1.40
1.60
1.80
2.00
2.20
2.40
80-81 85-86 90-91 95-96 00-01
Season
Rat
io
16-25
generalMEAN: - aged 16-25= 1.80
- in general= 1.54
RESULTS SUMMARY• In these two decades the number of
skiing injuries rose significantly
• The proportion of knee injuries increased more during the 80s and seemed to stabilize as 1/3 of the total injuries
• Women are more likely to injure their knees
• Ratio is 1,5:1, but it is higher in the 16-25 age group; almost 2:1
CONCLUSIONS
• The knee is the part of the body which suffers most injuries in our ski resort – Reasons:
• Evolution of ski bindings• Not having the ski bindings checked by a
professional once a year• Evolution of ski boots (injuries have moved
up to the knee)
• Women are more vulnerable to knee injuries– Reasons:
• Women (generally speaking) are more sedentary, less fit and less sporty in recreational sports than men
• Women have a smaller quadriceps muscular mass
• Women have a higher prevalence of genu valgum
• Prevention is the best way to reduce knee injuries– Skiers have to be in good shape
(specially leg muscles)
– Have your ski bindings checked by a professional every season
– Preventive measures should be shown on mass media
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THANKS!!
(MOLTES GRÀCIES!!)