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| Name | Class |
|---|---|
| Lundbeck Foundation | OTHER |
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Approximately 40 % of all patients undergoing fast-track total hip or knee arthroplasty needs intermittent bladder catheterization after surgery, as they are transient incapable of voluntary bladder emptying (postoperative urinary retention - POUR). The currently used interventional threshold for urinary bladder catheterization are a bladder volume of approximately 500 ml., but no evidence exists for this threshold. At the same time, the current knowledge suggest, that a bladder volume up to 1000 ml. for 2-4 hours are safe in humans, and as the use of urinary bladder catheterization are increasing the risk of complications, the investigators are hypothesizing that increasing the interventional threshold for urinary bladder catheterization after fast-track total hip or knee arthroplasty, will reduce the number of patients needing urinary bladder catheterization, without increasing the incidence of urological complications - including urinary tract infections.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| 500 ml. | Active Comparator | A bladder volume of 500 ml. or more, and incapability of voluntary micturition, is used as interventional threshold for urinary bladder catheterization. |
|
| 800 ml | Experimental | A bladder volume of 800 ml. or more, and incapability of voluntary micturition, is used as interventional threshold for urinary bladder catheterization. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| increased interventional threshold for urinary bladder catheterization (800 ml) | Procedure |
| ||
| Current used interventional threshold for urinary bladder catheterization (500 ml) |
| Measure | Description | Time Frame |
|---|---|---|
| Number of patients receiving postoperative urinary bladder catheterization | Patients will be followed from end of surgery to their first voluntary micturition, expectably within a mean period of twelve hours |
| Measure | Description | Time Frame |
|---|---|---|
| Incidence of urinary tract infections | within the first 30 days after surgery | |
| Number of voiding difficulties acquired postoperatively | within the first 30 days postoperatively | |
| Measure | Description | Time Frame |
|---|---|---|
| Time from last preoperative micturition to end of surgery. | Patients will be follwed from their last preoperative micturition to end of surgery. Expectably within a mean period of two hours. | |
| Time from last preoperative micturitions to first postoperative bladder catheterization (if relevant). |
Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Lars Bjerregaard, MD | Rigshospitalet, Copenhagen university, Denmark | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Aalborg University Hospital, Farsoe | Farsø | 9640 | Denmark | |||
| Department of Orthopaedics, Gentofte University Hospital |
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| Procedure |
|
| Intermittent bladder catheter | Device |
|
| Number of readmissions due to urological issues (including urosepsis) |
| Within the first 30 days postoperatively |
| Patients will be follwed from their last preoperative micturition to their first postoperative bladder catheterization (if relevant). Expectably within a mean period of six to eight hours. |
| Time from last preoperative micturition to first postoperative, voluntary micturition. | Patients will be follwed from their last preoperative micturition to their first postoperative, voluntary micturition. Expectably within a mean period of fourteen hours. |
| Time from end of surgery to first postoperative bladder catheterization (if relevant). | Patients will be follwed from end of surgery to their first postoperative bladder catheterization (if relevant). Expectably within a mean period of four to six hours. |
| Time from end of surgery to first postoperative, voluntary micturition. | Patient will be followed from end of surgery to their first postoperative, voluntary micturition. Expectably within a mean period of twelve hours. |
| Hellerup |
| 2900 |
| Denmark |
| Department of Orthopaedics, Vejle Hospital | Vejle | 7100 | Denmark |