DOS 2017

144

· DOS Abstracts

Completeness of the Danish Hip Arthroscopy Registry

Erik Poulsen, Bent Lund, Eleanor Boyle, Ewa M. Roos

Department of Sports Science and Clinical Biomechanics, University of South-

ern Denmark

Background:

The Danish Hip Arthroscopy Registry (DHAR) started in 2012

to assist in quality assurance of hip arthroscopy in public and private hospitals.

Purpose / Aim of Study:

To report completeness of patient characteristics

and patient reported outcome measures (PROMs).

Materials and Methods:

We analyzed completeness of DHAR by comparing it

against the Danish National Patient Register (DNPR) and reported the propor-

tion of registrants in DHAR to DNPR. We further determined if a differential

follow-up rate occurred by comparing baseline demographics (age and sex),

activity level measured by the Hip Sports Activity Scale (HSAS) and PROMs of

those who responded to the 1-year follow-up against those who did not. The

PROMs were the Copenhagen Hip and Groin Outcome Score (HAGOS) and the

International Hip Outcome Tool – short version (iHOT12).

Findings / Results:

From February 2012 to February 2016, 3,016 arthroscop-

ic hip surgeries were registered in DHAR and 5,501 in DNPR. The proportion of

completed increased from 35% for the first six months to 43, 57, 59, 61 and

68% for the last period. As of June 2017, 1,594/2,059 (77%) had completed

1-year follow-up questionnaires and 158 patients (<1%) had returned 1-year

follow-up questionnaires but were not registered in the surgical database. At

1-year follow-up, more males (45 vs. 39%, p = 0.021) and more participating

in sports at competitive level (15 vs. 9%, p< 0.001) did not respond. Age, all

subscales of HAGOS and the iHOT12 score did not differ between responders

and non- responders.

Conclusions:

During its first four years, the reporting of arthroscopic surgeries

in DHAR had increased from 35 to 68%. One-year follow-up data is available for

77%. More commonly, men participating in competitive sports did not return

1-year follow-up questionnaires.

No conflicts of interest reported

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