2013, Number 4
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Rev Esp Med Quir 2013; 18 (4)
Comparative Results between the Intraarticular Application of Collagen PVP vs Hylan G-F 20 in Patients with Gonarthrosis
Leal OA, Mejía RLC, Benítez RA, Castillo RM
Language: Spanish
References: 19
Page: 306-311
PDF size: 387.99 Kb.
ABSTRACT
Background: Gonarthrosis is a multifactorial disease with a
multidisciplinary treatment. Viscosupplementation is a line of
treatment that seeks to restore the viscoelastic properties of the
synovial fluid in order to balance synthesis and degradation of
cartilage. Collagen PVP and Hylan G-F 20 have both different
action mechanisms and have been used to complement the
treatment of gonarthrosis.
Objective: To compare intraarticular application of collagen PVP
and Hylan G-F 20 in patients with gonarthrosis.
Patients and method: A prospective, randomized, longitudinal
and observational study was done, in which we recruited 80 patients
with gonarthrosis grades ll or lll. The age range was between
35 and 55 years old and we randomized them into two groups
containing 40 patients. Each group was treated with either collagen
PVP or Hylan G-F 20. We registered their Lequesne index
and visual analogue scale (VAS) score previous to start therapy,
at one month and six months after finished treatment. In order
to compare the results on both groups we used the X
2 method.
Results: 65% of patients were women. For the group treated with
collagen PVP the median of age was 48 years. The average of
improvement was 3 points for the Lequesne index and 62.5%
in the VAS score at six months. Whereas the group treated with
Hylan G-F 20 had a median of age of 50 years, the average
amelioration in the Lequesne index was 2.5 points and 55% at
the VAS score at six months. According to the x
2 test, the difference
between these groups was statistically significant favoring
collagen PVP (
p › 0.05).
Conclusions: Both drugs show good results in the treatment
of pain related to gonarthrosis, as well as improvement of the
articular function. Application of collagen PVP showed a significant
improvement regard to Hylan G-F 20 in the reduction of the
Lequesne score; however, it has the disadvantage of requiring
more intrarticular applications and, thus, it implies a higher cost
treatment.
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