biologia - Studia

R. TOROK OANCE, V. NICULESCU, M.N. FILIMON
noticed four different situations. The most frequent was the situation of vertebral
osteoporosis associated with hip osteopenia. In all cases
there was affected the vertebral column.
There are multiple causes for the discordance in diagnosis. They can be of
a physiological nature, connected to the natural adaptive reaction of the skeleton to
internal and external factors, of a physiopathological nature, as a consequence of an
anatomical affection and connected to the presence and composition of the surrounding
tissues, of technical nature, concerning the equipment used for determination or the
faulty determination. Moayyeri et al., (2005) have researched this discordance in
diagnosis in osteoporosis. Most of the patients included in their research (58.3%)
had the same T-score categories both at the vertebral column and at the hip bone, a
minor discordance in diagnosis was encountered in 38.9% of the cases, while a
major discordance was found in only 2.7% of the cases.
Our results are slightly different. The cases with a major discordance in
diagnosis are the rarest situation as well (9.72%). This is followed by the situation
in which osteoporosis is diagnosed for both regions, the most frequent being the minor
discordance in diagnosis (61.38%). According to Masud and Francis (2000), the
discordance is more frequent in the first years of postmenopause than in women
over 60 years old.
Conclusions
In the set of patients we analyzed, the decrease of the bone mineral density
starts after the age of 40, both at the vertebral column, and at the hip bone. This
decrease of the bone mineral density becomes more significant after the age of 70,
in both determination regions.
There is an inverted connection, tight and very significant (p=0.0038), between
the bone mineral density determined at the vertebral column and age. Likewise, there is
an inverted connection, tight and very significant, between the bone mineral density
determined at the hip bone and age (p=0.0017), the connection being even tighter than
in the previous case (p=0.0017).
We also noticed the existence of a direct and not very tight connection
between the bone mineral density determined at the vertebral column and, respectively,
at the hip bone; the R correlation quotient’s value is 0.4539 (R 2 = 0.2044, p=0.6786).
There is also an obvious decrease tendency, with increasing age, of the T-
score values, both at the vertebral column, and at the hip bone. On the other hand,
the Z-score, which also takes into account the patient’s age, shows an increase
tendency both at the vertebral column, and at the hip bone.
In the set of patients we analyzed, we noticed, according to the T-score, that
the axial skeleton is preponderantly affected. The most frequent situations are those of
minor discordance of diagnosis between the two regions under investigation, followed
by the cases of the unitary diagnosis. The least frequent was the major discordance of
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