Orthopedics Book

Approach

Ankle Disorders

Cervicobrachial Disorders

Elbow Disorders

Foot Disorders

Hand Disorders

Hip Disorders

Infectious Disease

Knee Disorders

Lumbar Spine Disorders

Pelvis

Shoulder Disorders

Thoracic Spine Disorders

Wrist Disorders

Cervical Spine Disorders

//fpnotebook.com/

Ballottable Patella Sign

Aka: Ballottable Patella Sign, Ballottement Test, Patellar Tap
  1. Indication
    1. Evaluation for large Knee Joint effusion
  2. Technique
    1. Patient lies supine on table
    2. Examiner forces fluid from suprapatellar pouch
      1. Firmly grasp just above Patella with one hand
      2. Forces Joint Fluid between Patella and femur
    3. Examiner pushes Patella downward into femur with 2-3 fingers
      1. Use a quick sharp motion in pushing the Patella down
      2. Assess for palpable click on Patella striking femur
  3. Interpretation: Positive test suggests large effusion
    1. Large Knee Joint effusion: Palpable click present as Patella strikes the trochlea
    2. No joint effusion (normal): no click palpated
  4. References
    1. Bates (1991) Physical Exam, Lippincott
    2. Kastelein (2009) Arch Phys Med Rehabil 90(1): 82-86 [PubMed]

Patellar tap (C0231756)

Concepts Sign or Symptom (T184)
SnomedCT 56020001
Dutch zwevende patella
French Rotule flottante
German tanzende Patella
Italian Rotula fluttuante
Portuguese Rótula flutuante
Spanish Rótula flotante, percusión rotuliana, percusión rotuliana (hallazgo), rótula flotante, clic rotuliano, peloteo rotuliano (hallazgo), peloteo rotuliano, chasquido rotuliano
Japanese 膝蓋跳動, ｼﾂｶﾞｲﾁｮｳﾄﾞｳ
English knee patella ballottement, patellar ballottement (physical finding), patellar ballottement, floating patella, patellar tapping, patellar tap, Floating patella, Patellar ballottement, Patellar tap, Patellar click, Patellar tap (finding)
Czech Plovoucí čéška
Hungarian Mobilis patella
Sources
Derived from the NIH UMLS (Unified Medical Language System)


You are currently viewing the original 'fpnotebook.com\legacy' version of this website. Internet Explorer 8.0 and older will automatically be redirected to this legacy version.

If you are using a modern web browser, you may instead navigate to the newer desktop version of fpnotebook. Another, mobile version is also available which should function on both newer and older web browsers.

Please Contact Me as you run across problems with any of these versions on the website.

Navigation Tree