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Case Reports
. 2013 Oct 4:2013:bcr2013201279.
doi: 10.1136/bcr-2013-201279.

'Pucker sign' an indicator of irreducible knee dislocation

Santosh Somayya Jeevannavar  1 , Chidendra Manohar Shettar
Affiliations
Case Reports

'Pucker sign' an indicator of irreducible knee dislocation

Santosh Somayya Jeevannavar et al. BMJ Case Rep. .
No abstract available

PubMed Disclaimer

Figures

Figure 1
Figure 1
(A and B) Clinical photograph showing the medial aspect of right knee joint. The medial femoral condyle has button holed through the medial capsuloligamentous structures and lies subcutaneously. We can also see the skin and medial subcutaneous tissues being entrapped between the medial femoral condyle and the joint cavity producing the ‘pucker sign’.
Figure 2
Figure 2
(A and B) Anteroposterior and lateral X-rays of the right knee showing posterolateral subluxation.
Figure 3
Figure 3
(A and B) MRI pictures of the right knee coronal and axial view demonstrating the buttonholing of the medial femoral condyle and entrapment of the medial capsuloligamentous structures in the medial joint cavity. There is mid-substance tear of the medial collateral ligament.
Figure 4
Figure 4
Intraoperative photograph demonstrating the midsubstance medial collateral ligament tear and the buttonholed medial femoral condyle.
Figure 5
Figure 5
The torn medial structures blocking the reduction of the medial femoral condyle can be observed entrapped in the joint cavity.
Figure 6
Figure 6
Intraoperative photograph after completion of the reduction and repair of the torn medial collateral ligament.
See this image and copyright information in PMC

References

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