DOS 2016

DOS Kongressen 2016 ·

109

Treatment efficacy of degenerative shoulder lesions

did not improve in Denmark from 1996 to 2013. A

registry study of 244.519 patients.

Nina Monrad, Ann Ganestam, Thomas Kallemose, KW Barfod

Department of Orthopedics, Copenhagen University Hospital Hvidovre

Background:

Degenerative shoulder lesions are common and difficult to treat.

Purpose / Aim of Study:

The purpose of the study was to investigate treat-

ment of degenerative shoulder lesions in Denmark from 1996 to 2013 with

focus on incidence of surgical procedures, treatment efficacy and the risk of

developing frozen shoulder.

Materials and Methods:

The National Patient Registry was retrospectively

searched to find the number of degenerative shoulder lesions in Denmark dur-

ing the period 1996– 2013. Regional population data were retrieved from the

services of Statistics Denmark. Risk estimates were analyzed by logistic regres-

sion models .

Findings / Results:

During the 18-year period, 244.519 individual contacts

with a DM 75 diagnosis were registered. Of those 28% received surgical treat-

ment due to their shoulder condition. The probability of being operated given

you had degenerative shoulder disease was 25% in 1996, rose to 32% in 2008

and dropped to 16% in 2013. Odds ratio for being operated in 2013 com-

pared to 2008 was 0.41, p < 0.001. Patients aged 31-70 had twofold odds

of surgery compared to patients aged 18-30 or above 70, p<0,001. The risk

of continued shoulder problems 2 years from time of diagnosis did not change

significantly over the 18-year study period; the highest risk was 14% for people

aged 31-50 and the lowest risk was 7% for people >70. The risk of developing

frozen shoulder after a shoulder operation was 3.8% in 1996 and 1.7% in 2013.

Conclusions:

The prognosis of having ongoing shoulder pain 2 years after di-

agnosis did not change over the study period indicating that treatment hasn’t

improved over the past 18 years. The probability of being operated given you

had degenerative shoulder disease peaked in 2008 after which the probability

was halved. This coincides with high quality trials questioning the effect of sub-

acromial decompression.

No conflicts of interest reported

60.