Knee (Beclere method intercondylar view)
Disclosures
- updated 4 Sep 2022:
Nothing to disclose
Updates to Article Attributes
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was changed:
The Béclere method intercondylar view is an additional projection of the knee, used to better examine the tibial plateau and femoral intercondylar spaces 1. It is anecdotally known as a 'notch view'.
Indication
The commonest indications for this additional knee view is for the assessment of a loose body (locked knee) and better delineation of the intercondylar eminence.
Patient position
- the patient is supine on the table with the knee flexed 40 degrees 1
- the image receptor is placed under the flexed knee slightly more superior than that of the AP projection
Technical factors
- axial projection
-
centring point
- central ray is angled to align perpendicular to the tibia central to 1.5 cm distal of the apex of the patella
-
collimation
- superior to include the distal femur
- inferior to include the proximal tibia/fibula
- lateral to include the skin margin
- medial to include medial skin margin
-
orientation
- portrait
-
detector size
- 24 cm x 30 cm
-
exposure
- 60-70 kVp
- 7-10 mAs
-
SID
- 100 cm
-
grid
- no
Image technical evaluation
- tibial plateau should be free from any superimposition
- femoral condyles should be free from superimposition with the intercondylar fossa in profile, giving the appearance of a 'notch'
Practical points
- ensure before carrying out x-ray the image receptor is superior enough to contain the image
-<p>The <strong>Béclere method intercondylar view</strong> is an additional projection of the knee, used to better examine the tibial plateau and femoral intercondylar spaces <sup>1</sup>. It is anecdotally known as a 'notch view'.</p><h4>Indication</h4><p>The commonest indications for this additional knee view is for the assessment of a loose body (locked knee) and better delineation of the intercondylar eminence.</p><h4>Patient position</h4><ul>-<li>the patient is supine on the table with the knee flexed 40 degrees <sup>1</sup>-</li>-<li>the image receptor is placed under the flexed knee slightly more superior than that of the AP projection </li>-</ul><h4>Technical factors</h4><ul>-<li><strong>axial projection</strong></li>-<li>-<strong>centring point</strong><ul><li>central ray is angled to align perpendicular to the tibia central to 1.5 cm distal of the apex of the patella</li></ul>-</li>-<li>-<strong>collimation</strong><ul>-<li>superior to include the distal femur</li>-<li>inferior to include the proximal tibia/fibula</li>-<li>lateral to include the skin margin </li>-<li>medial to include medial skin margin</li>-</ul>-</li>-<li>-<strong>orientation </strong><em> </em><ul><li>portrait</li></ul>-</li>-<li>-<strong>detector size</strong><ul><li>24 cm x 30 cm</li></ul>-</li>-<li>-<strong>exposure</strong><ul>-<li>60-70 kVp</li>-<li>7-10 mAs</li>-</ul>-</li>-<li>-<strong>SID</strong><ul><li>100 cm</li></ul>-</li>-<li>-<strong>grid</strong><ul><li>no</li></ul>-</li>-</ul><h4>Image technical evaluation</h4><ul>-<li>tibial plateau should be free from any superimposition</li>-<li>femoral condyles should be free from superimposition with the intercondylar fossa in profile, giving the appearance of a 'notch'</li>- +<p>The <strong>Béclere method intercondylar view</strong> is an additional projection of the knee, used to better examine the tibial plateau and femoral intercondylar spaces <sup>1</sup>. It is anecdotally known as a 'notch view'.</p><h4>Indication</h4><p>The commonest indications for this additional knee view is for the assessment of a loose body (locked knee) and better delineation of the intercondylar eminence.</p><h4>Patient position</h4><ul>
- +<li>the patient is supine on the table with the knee flexed 40 degrees <sup>1</sup>
- +</li>
- +<li>the image receptor is placed under the flexed knee slightly more superior than that of the AP projection </li>
- +</ul><h4>Technical factors</h4><ul>
- +<li><strong>axial projection</strong></li>
- +<li>
- +<strong>centring point</strong><ul><li>central ray is angled to align perpendicular to the tibia central to 1.5 cm distal of the apex of the patella</li></ul>
- +</li>
- +<li>
- +<strong>collimation</strong><ul>
- +<li>superior to include the distal femur</li>
- +<li>inferior to include the proximal tibia/fibula</li>
- +<li>lateral to include the skin margin </li>
- +<li>medial to include medial skin margin</li>
- +</ul>
- +</li>
- +<li>
- +<strong>orientation </strong><em> </em><ul><li>portrait</li></ul>
- +</li>
- +<li>
- +<strong>detector size</strong><ul><li>24 cm x 30 cm</li></ul>
- +</li>
- +<li>
- +<strong>exposure</strong><ul>
- +<li>60-70 kVp</li>
- +<li>7-10 mAs</li>
- +</ul>
- +</li>
- +<li>
- +<strong>SID</strong><ul><li>100 cm</li></ul>
- +</li>
- +<li>
- +<strong>grid</strong><ul><li>no</li></ul>
- +</li>
- +</ul><h4>Image technical evaluation</h4><ul>
- +<li>tibial plateau should be free from any superimposition</li>
- +<li>femoral condyles should be free from superimposition with the intercondylar fossa in profile, giving the appearance of a 'notch'</li>
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