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· DOS Abstracts
The prevalence and impact of Diabetes Mellitus on the
Frozen Shoulder
Per Hviid Gundtoft, Anne Krog Kristensen, Mikkel Attrup, Jette Wessel Vobbe,
Torben Luxhøi, Flemming Gothard Rix, Per Hölmich, Lilli Sørensen
Orthopedic, Kolding Hospital; Orthopedic, Vejle Hospital; Orthopedic, Copenha-
gen University Hospital Amager-Hvidovre; Orthopedic, Vejle Hospital; Ortho-
pedic, Kolding Hospital; Orthopedic, Kolding Hospital; Orthopedic, Copenhagen
University Hospital Amager-Hvidovre; Orthopedic, Vejle Hospital
Background:
Numerous studies have shown that Diabetes Mellitus (DM) is a
risk factor for Frozen Shoulder (FS), and patients with DM are regarded as being
more severely affected by their FS than patients without DM. Furthermore, a
high proportion of patients with DM are undiagnosed.
Purpose / Aim of Study:
The objective of this study was to estimate the
prevalence of undiagnosed DM in patients with newly diagnosed FS and study
whether DM increases the severity of the FS disease.
Materials and Methods:
Patients with newly diagnosed FS were consecutively
included in this case-control study. Patients that were not already diagnosed
with DM were invited to be tested with the HbA1c blood sample test. The study
population was compared with a control group, consisting of 5 individuals from
the general population matched on age and sex. The passive range of motion
(ROM), Oxford Shoulder Score, and Visual Analog Scale (VAS) for average and
maximum daily pain was recorded for all patients in the study group.
Findings / Results:
A total of 235 patients were included of which 34 (14%)
were diagnosed with DM prior to examination. Of the reaming 201 patients,
122 (61%) agreed to be tested for DM. None of the tested patients had un-
diagnosed DM. This was not significantly different from the prevalence in the
matched control population (p= 0.09). There was no difference between pa-
tients with and without DM in average daily VAS (p= 0.46) nor maximum daily
VAS (p= 0.44). The Oxford Shoulder Score was similar in the two groups (p=
0.23) and so was the ROM.
Conclusions:
The prevalence of undiagnosed DM is low in patients with FS and
does not differ from the general population. DM does not seem to affect the
perceived severity of a FS.
No conflicts of interest reported
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