CASNCT02022410
CAS and Length of Hospital Stay After TKA
An observational study of CAS, run by University of Lausanne Hospitals at 1 site in Switzerland.
Trial summary
The purpose of the study is to prospectively evaluate patients who underwent total knee arthroplasty (TKA) using the Cumulated Ambulation Score (CAS) Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- CAS
- What is being tested?
- CAS after primary and revision TKA
- How many people
- 73 participants
- Where
- 1 siteSwitzerland
- Study dates
- Sep 2013to Jun 2015
- How long will I take part?
- 1 Year
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: TKA patients just after surgery
Who may be able to join
- Exclusion Criteria: No consent form signed, neurological impairment
- -
Who cannot join
None listed.
Trial locations and contacts
1 site in 1 country.
Switzerland1 site
CHUV - Hopital Orthopedique
Lausanne, Canton of Vaud, 1011
About this study
Official title: Cumulated Ambulation Score and Length of Hospital Stay After TKA
The purpose of the study is to prospectively evaluate patients who underwent total knee arthroplasty (TKA) using the Cumulated Ambulation Score (CAS)
Read the detailed description
The number of patients who receive a total knee arthroplasty (TKA) is steadily increasing and although the reliability and the results of this procedure are excellent, intensive functional rehabilitation is needed postoperatively to obtain satisfactory range of motion. Currently, the standard length of stay at our hospital is between 8 and 10 days for patients who undergo TKA.
The length of stay depends not only on factors such as early mobilization, pain management, major or minor complications and logistical or organizational problems (1) (2). It also depends on the availability of adequate services when the patient needs to be transferred to an appropriate facility. Each of these steps can be further developed in order to improve the quality of care for patients, reduce hospital costs and increase the availability of beds (3). As a result, the reduction in average length of stay would not only result in a reduction in cost but also a greater turnover in the number of patients. Several studies show that the application of a post-operative fast-track strategy may reduce the length of stay in a very significant manner with benefit for patients and hospitals (3).Thus, if their condition allows, patients would have rapid post-operative rehabilitation, with early joint mobilization at D0 (operative day) and walking from D1 (the first post-operative day).
The Cumulated Ambulation Score (CAS) (4) is a tool developed and tested for initial predicting the in-patient length of stay following a hip surgery. The CAS consists of documenting the patient's ability and independence while performing 3 basic daily activities (sit to stand, transfer out of bed and mobilization). It is calculated using a score of 0-2 for each parameter, giving a total daily score of 0 to 6 and a score of 0 to 18 during the first 3 post-operative days. The CAS is then the sum of scores of the first 3 post-operative days. This score proves to be an effective tool for predicting the length of stay, and other parameters investigated such as survival rate and return home after a proximal femoral surgery.
- Conditions
- CAS
- Being tested
- CAS after primary and revision TKA
- Keywords
- CAS, Length of stay, Rehabilitation localisation, TKA
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
CAS after primary and revision TKAOther
CAS and RAPT
| Study group | Role | What they receive |
|---|---|---|
| CAS after primary and revision TKA | CAS and RAPT Receives: Other: CAS after primary and revision TKA |
What is being measured
The primary outcome is the main question the study is designed to answer.
CAS value
Record the CAS values for the first three operative days as mentioned in the protocol
Measured: The 3rd day after TKA
Secondary outcomes (1)
Length of stay
Record number of in-hospital days
Measured: between 4 days and 2 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Dec 2013 (estimated)
- Study startSep 2013
- Primary completionSep 2014
- Study completionJun 2015
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for CASStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 73 participants (actual)
- Target duration
- 1 Year
Sponsor and investigators
- Lead sponsor
- University of Lausanne Hospitals
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Brigitte Jolles, MD, University of Lausanne Hospitals
- Investigators
- B Jolles, Prof., Study director, CHUVLuis C Pereira, MSc, Principal investigator, CHUVGeorgios Gkagkalis, Dr, Principal investigator, CHUV
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02022410
- Sponsor's protocol ID
- CHUV 144/13
- Other IDs
- CAS
- Status last verified
- Jun 2015
- First submitted
- 17 Sep 2013
- Last updated
- 2 Jun 2015
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 2 Jun 2015. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Cumulated Ambulation Score and Length of Hospital Stay After TKA
- ClinicalTrials.gov ID
- NCT02022410
- Acronym / sponsor ID
- CHUV 144/13
- Conditions
- CAS
- Keywords
- CAS, Length of stay, Rehabilitation localisation, TKA
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 73 participants (actual)
- Lead sponsor
- University of Lausanne HospitalsUniversity, hospital or other
- Study start
- Sep 2013
- Primary completion
- Sep 2014 (actual)
- Study completion
- Jun 2015 (actual)
- First posted
- 27 Dec 2013 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of the study is to prospectively evaluate patients who underwent total knee arthroplasty (TKA) using the Cumulated Ambulation Score (CAS)
Detailed description
The number of patients who receive a total knee arthroplasty (TKA) is steadily increasing and although the reliability and the results of this procedure are excellent, intensive functional rehabilitation is needed postoperatively to obtain satisfactory range of motion. Currently, the standard length of stay at our hospital is between 8 and 10 days for patients who undergo TKA.
The length of stay depends not only on factors such as early mobilization, pain management, major or minor complications and logistical or organizational problems (1) (2). It also depends on the availability of adequate services when the patient needs to be transferred to an appropriate facility. Each of these steps can be further developed in order to improve the quality of care for patients, reduce hospital costs and increase the availability of beds (3). As a result, the reduction in average length of stay would not only result in a reduction in cost but also a greater turnover in the number of patients. Several studies show that the application of a post-operative fast-track strategy may reduce the length of stay in a very significant manner with benefit for patients and hospitals (3).Thus, if their condition allows, patients would have rapid post-operative rehabilitation, with early joint mobilization at D0 (operative day) and walking from D1 (the first post-operative day).
The Cumulated Ambulation Score (CAS) (4) is a tool developed and tested for initial predicting the in-patient length of stay following a hip surgery. The CAS consists of documenting the patient's ability and independence while performing 3 basic daily activities (sit to stand, transfer out of bed and mobilization). It is calculated using a score of 0-2 for each parameter, giving a total daily score of 0 to 6 and a score of 0 to 18 during the first 3 post-operative days. The CAS is then the sum of scores of the first 3 post-operative days. This score proves to be an effective tool for predicting the length of stay, and other parameters investigated such as survival rate and return home after a proximal femoral surgery.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Target follow-up
- 1 Year
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| CAS after primary and revision TKA | – | Other: CAS after primary and revision TKACAS and RAPT |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- TKA patients just after surgery
Key inclusion criteria (2 listed)
- Exclusion Criteria: No consent form signed, neurological impairment
- -
Key exclusion criteria (0 listed)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| CAS after primary and revision TKACAS and RAPT | Other | CAS after primary and revision TKA |
Primary outcome
CAS value
Time frame: The 3rd day after TKA
Record the CAS values for the first three operative days as mentioned in the protocol
1 secondary outcome
Length of stay
Time frame: between 4 days and 2 weeks
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 2 Jun 2015.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
B Jolles, Prof. study director
CHUV
Luis C Pereira, MSc principal investigator
CHUV
Georgios Gkagkalis, Dr principal investigator
CHUV
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of CAS, run by University of Lausanne Hospitals at 1 site in Switzerland.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 0 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 2 Jun 2015. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Switzerland. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
CAS value (time frame: The 3rd day after TKA). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Jun 2015.