The Singh index have been used widly for measuring degree of osteoporosis which was the important cause of the femoral neck fracture because of the adventage as noninvasive, simple, good reproducible and index of general osteoporosis.
The purpose of this article is to study the clinical significance of the Singh index.
For the this purpose, the fractured groups, of 71 patinets older than 45 years of age with femoral neck fracture who were admitted in department of orthopedic surgery, Chungnam National University Hospital from March, 1980 to Feb., 1985 in contrast to control group without fracture were measured Singh index, analysed the relationship between Singh index and patient´s age, type of femoral neck fracture and degree of trauma.
Following results were obtained.
1. The average age is 66 years old in fractured group and is 60.16 years old in control group.
The average Singh index of fractured group is 3.23 and is 4.27 in control group.
There is a statistically significant difference between fractured and control group by 1.04 (P<0.05).
2. The average Singh index below 54 years old is 4.933, the prevalence of definite osteoporosis(Grade Ⅰ, Ⅱ) is 6.7%, but the average Singh index above 75 years old is 2.32, the prevalence of definite osteoposis was 52%.
3. The average Singh index of the intracapsular and extracapsular fracture of femoral neck fracture is 3.47 and 3.05.
There is no statistically significant difference (p<0.1).
4. The average Singh index of the Mild trauma group and Severe trauma group is each 2.5 and 4.28.
There is statistically significant difference (p<0.01).
5. Statistically the prevalence of Severe trauma in men(60%) is higher than in women(22%).
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