Outcomes of CPM Usage Following Arthroscopic Acetabular Labral Repair

Study Overview
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Brief Summary
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The purpose of this study is to measure whether CPM (continuous passive motion) usage improves outcomes following arthroscopic hip surgery that includes labral repair. Investigators tested the hypothesis that CPM usage reduces pain levels and pain medication use and improves function in individuals who undergo hip arthroscopy.

Detailed Description
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Subjects undergoing primary hip arthroscopy for acetabular labral repair were randomized to determine whether they would receive a CPM. Those subjects receiving a CPM were instructed to use it for 4-6 hours daily throughout the first two postoperative weeks. The total number of pain medications and average pain scores over the two weeks, as well as Hip Outcome Score Activity of Daily Living (HOS ADL) scores at standard time points were compared via a two sample t-test and intention-to-treat analysis.

Official Title
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The Effect of Continuous Passive Motion on Pain Control Following Hip Arthroscopy

Conditions
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Femoro Acetabular Impingement, Pain, Postoperative, Hip Labral Tear

Intervention / Treatment
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* Device: Continuous Passive Motion


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: undergoing hip arthroscopy to repair a torn labrum Exclusion Criteria: pregnancy revision surgery bilateral surgery

Ages Eligible for Study
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Minimum Age: 14 Years
Maximum Age: 50 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: CPM<br>These subjects received a continuous passive motion (CPM) device and were instructed to use it for 4-6 hours daily throughout the first two postoperative weeks following their arthroscopic labral repair. They were provided adequate education on how to operate the device. The subjects recorded their average usage of the CPM, as well as their personal perception of the CPM, at the postoperative 2 day, 7 day, and 14 day marks. | Device: Continuous Passive Motion<br>* CPM devices are used in postoperative rehabilitation and are throughout to reduce joint stiffness.<br>|
| No Intervention: No CPM<br>No CPM was administered to these subjects. | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change in Patient Satisfaction and Functional Outcome | Hip Outcome Score Activities of Daily Living (HOS ADL) questionnaire completed at specific time points. Completion of the HOS ADL provides a score from 0 to 100, with a higher score corresponding to greater level of function. The improvement preoperative to 6 month postoperative scores was also computed. | Baseline and 6 weeks, 12 weeks, and 6 months postoperatively | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Analgesic Usage | Analgesic usage measured via the morphine-equivalent dose of consumed analgesic medications | Initial two postoperative weeks | 
| Pain Level | Change in pain level measured on a Likert-type scale from 0 to 10, with higher scores representing higher pain levels. | Initial two postoperative weeks | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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continuous passive motion device, HOS-ADL, hip arthroscopy