Knee Swelling Under Use of Compression Stockings After Outpatient Surgery

Study Overview
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Brief Summary
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Outpatients who undergo knee surgery are designated two different clinical study groups. Group A receives common wrapping after surgery to the first postsurgical day and will be provided with compression stockings for the following 10 days, while group B only receives common wrapping and will not be provided with compression stockings. The investigators are going to investigate the effect of compression stockings on postsurgical swelling and formation of edema on outpatients.

Detailed Description
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The investigators are planing on investigate the effect of compression stockings on postsurgical swelling and formation of edema. For this purpose the investigators devide outpatients who have undergone knee surgery to two different clinical study groups. Group A receives a common compression bandage after surgery to the first postsurgical day and receives compression stockings afterwards for the following 10 days, while Group B only receives a common compression bandage to the first postsurgical day. Group A will be instructed to wear compression stockings for 24 hours on the first two postsurgical day, afterwards at least for 8 hours a day. Preoperatively the investigators are going to determine the volume and circumference of both legs using the Bodytronic 600 by Bauerfeind. Subsequently the measurement will be repeated on the first, forth and tenth postsurgical day. The investigators are going to measure the range of motion, also the patients of both groups will be asked to mark pain and tension on a visual analog scale and write down the amount of time they have been lying, sitting and standing each day. Group A will document the amount of time for how long they were wearing compression stockings each day.

Official Title
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Prospective Randomized Assessment of Postsurgical Swelling Applying Compression Stockings vs. Conventional Wrapping After Outpatient Surgery

Conditions
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Knee Pain Swelling

Intervention / Treatment
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* Other: Patients use compression stockings for 10 days after surgery
* Other: normal therapy - no compression stockings


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: age > 18 years signed release form Exclusion Criteria: deep vein thrombosis swelling caused by cardiac, venous or endocrine genesis dysfunction of the lymphatic system dysfunction of kidney or liver Use of water withholding medication massive adiposity cachexia epilepsy

Ages Eligible for Study
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Minimum Age: 18 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 |
| --- | --- |
| Placebo Comparator: B - No compression stockings<br>normal therapy - no compression stockings | Other: normal therapy - no compression stockings<br>* the patients receive the common therapy according to S2 guidelines<br>|
| Active Comparator: A - Use of compression stockings<br>Patients use compression stockings for 10 days after surgery | Other: Patients use compression stockings for 10 days after surgery<br>* patients wear compression stocking for 24 hours in the first 2 days after surgery and for at least 8 hours at day 3-10 after surgery<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Amount of Swelling of lower Extremity (circumference in mm and volume in ml) |  | 10 days | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Pain (visual analoge scale) and Range of Movement (degree of flexion) |  | 10 days | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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knee welling outpatient compression stockings