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

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.

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Key information

Conditions

Frozen Shoulder Behavior Behavioral Symptoms Bursitis Depression Joint Diseases Musculoskeletal Diseases

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Kantonsspital Baden

Baden, Canton of Aargau, 5404, Switzerland

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Shoulder arthroscopy

Exclusion criteria

Active frozen shoulder

Treatment and study plan

Arthroscopy

Procedure

Shoulder Arthroscopy

Primary outcomes

Self-developed questionnaire

Time frame: 1 to 4 years postoperatively

Adhereance to pain medication
PHQ 4 (Patient Health Questionnaire-4)

Time frame: 1 to 4 years postoperatively

Depression scale
SMS (Self-Medicating Scale)

Time frame: 1 to 4 years postoperatively

Patient's beliefs about self-medication

Sponsors and collaborators

Lead sponsor

Kantonsspital Baden

Other

Registry information

Official study title

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

Acronym: NaFS

Important dates

Study start: 2018
Primary completion: 2019
Study completion: 2020
First posted: Feb 17, 2021
Registry last updated: Feb 17, 2021

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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Completed