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Non-adherence to Pain Medication Increases Risk of Postoperative Frozen Shoulder

Non-adherence to Pain Medication Increases Risk of Postoperative Frozen Shoulder: A Case Control Study

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04758585
Acronym
NaFS
Enrollment
40
Registered
2021-02-17
Start date
2018-01-01
Completion date
2020-08-01
Last updated
2021-02-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Depression, Frozen Shoulder

Brief summary

Background: Postoperative Frozen-Shoulder (FS) or adhesive capsulitis is a relatively frequent complication (5-20%), even after simple arthroscopic shoulder surgeries. The pathophysiology is still unclear, but psychological factors may play a pivotal role. From clinical experience, the investigators hypothesized that participants, who are reluctant to take medications, particularly pain-killers, have an increased incidence of postoperative FS. The investigators retrospectively compared participants with and without postoperative FS by their attitude towards medication and by depression scale questionnaires.

Interventions

PROCEDUREArthroscopy

Shoulder Arthroscopy

Sponsors

Kantonsspital Baden
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Healthy volunteers
Yes

Inclusion criteria

* Shoulder arthroscopy

Exclusion criteria

* Active frozen shoulder

Design outcomes

Primary

MeasureTime frameDescription
Self-developed questionnaire1 to 4 years postoperativelyAdhereance to pain medication
PHQ 4 (Patient Health Questionnaire-4)1 to 4 years postoperativelyDepression scale
SMS (Self-Medicating Scale)1 to 4 years postoperativelyPatient's beliefs about self-medication

Countries

Switzerland

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026