Trial document





This trial has been registered retrospectively.
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  DRKS00009035

Trial Description

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Title

The fate of Baker's cyst after total knee arthroplasty

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Trial Acronym

Baker's cyst

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URL of the Trial

[---]*

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Brief Summary in Lay Language

Swelling, pain, tightness and a feeling of pressure are common in patients with chronic knee pain especially in patients with cartilage lesions or even osteoarthritis of the knee. These complaints are often associated with the occurrence of the Baker's cyst (= a pouch filled with joint fluid in the hollow of the knee). The generally accepted doctrine suggests that the cause of these cysts are pathologies in the knee, and that these cysts diminish without specific treatment after these pathologies in the knee are eliminated. However, as far as we know there is no scientific evidence. Therefore in the present study, we evaluate patients with knee osteoarthritis and a known Baker's cyst before and after one year after total knee arthroplasty regarding the occurrence and the change in size of the Baker's cyst. Additionally, we evaluate patient complaints that known to be associated with Baker's cyst.

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Brief Summary in Scientific Language

Swelling, pain, tightness and a feeling of pressure are common in patients with chronic knee pain especially in patients with cartilage lesions or even osteoarthritis of the knee. These complaints are often associated with the occurrence of the Baker's cyst. The generally accepted doctrine suggests that the cause of these cysts are intraarticular pathologies, and that these cysts diminish without specific treatment after these intraarticular pathologies are eliminated. However, as far as we know there is no scientific evidence. Therefore in the present study, we evaluate patients with knee osteoarthritis and a known Baker's cyst before (in patients with MRI) and after one year after total knee arthroplasty regarding the occurrence and the change in size of the Baker's cyst utilizing ultrasound. Additionally, we evaluate patient complaints that are known to be associated with Baker's cyst.

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Do you plan to share individual participant data with other researchers?

No

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Description IPD sharing plan:

there has been no interest in it so far

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Organizational Data

  •   DRKS00009035
  •   2015/09/07
  •   [---]*
  •   no
  •   Approved
  •   S12(a)/2015, Ethik-Kommission der Landesärztekammer Brandenburg
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Secondary IDs

  • [---]*
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Health Condition or Problem studied

  •   M17.1 -  Other primary gonarthrosis
  •   M71.2 -  Synovial cyst of popliteal space [Baker]
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Interventions/Observational Groups

  •   Patients with primary osteoarthritis of the knee and a known (MRI based) baker's cyst that are scheduled for knee arthroplasty are sonographically evaluated before and one year after knee arthroplasty regarding the verification of bakers cyst with ultrasound, its size and clinically associated complains.
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Characteristics

  •   Non-interventional
  •   Epidemiological study
  •   Single arm study
  •   Open (masking not used)
  •   [---]*
  •   Uncontrolled/Single arm
  •   Prognosis
  •   Single (group)
  •   N/A
  •   N/A
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Primary Outcome

1 year after TKA implantation patients are evaluated regarding the existence of Baker's cyst: yes or no

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Secondary Outcome

10 years after TKA implantation patients are evaluated regarding the existence of Baker's cyst: yes or no

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Countries of Recruitment

  •   Germany
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Locations of Recruitment

  • Medical Center 
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Recruitment

  •   Actual
  •   2012/02/10
  •   105
  •   Monocenter trial
  •   National
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Inclusion Criteria

  •   Both, male and female
  •   18   Years
  •   no maximum age
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Additional Inclusion Criteria

knee osteoarthritis, Baker's cyst in MRI, scheduled for TKA implantation

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Exclusion Criteria

rheumatoid arthritis, no TKA scheduled in our hospital

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Addresses

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    • Krankenhaus MOL, Standort Wriezen
    • Mr.  Dr. med.  Hagen  Hommel 
    • Sonnenburger Weg 3
    • 16269  Wriezen
    • Germany
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    • Centrum für Muskuloskeletale Chirurgie, Charité - Universitätsmedizin Berlin
    • Mr.  Dr. med.  Sebastian  Kopf 
    • Charitéplatz 1
    • 10117  Berlin
    • Germany
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    • Krankenhaus Märkisch-Oderland, Standort Wriezen
    • Mr.  Dr. med.  Hagen  Hommel 
    • Sonnenburger Weg 3
    • 16269  Wriezen
    • Germany
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    • Krankenhaus Märkisch-Oderland, Standort Wriezen
    • Mr.  Dr. med.  Hagen  Hommel 
    • Sonnenburger Weg 3
    • 16269  Wriezen
    • Germany
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Sources of Monetary or Material Support

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    • Krankenhaus Märkisch-Oderland, Standort Wriezen
    • Sonnenburger Weg 3
    • 16269  Wriezen
    • Germany
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    •   [---]*
    •   [---]*
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Status

  •   Recruiting complete, follow-up continuing
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Trial Publications, Results and other Documents

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