Assessment of the medial head of the gastrocnemius muscle in functional compression of the popliteal artery Jayandiran Pillai, MBBCh, BSc, FCS, CVS,

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Presentation transcript:

Assessment of the medial head of the gastrocnemius muscle in functional compression of the popliteal artery Jayandiran Pillai, MBBCh, BSc, FCS, CVS, Lewis J. Levien, FCS (SA), PhD (Med), Mark Haagensen, MBBch, FC Rad (DSA), Geoffrey Candy, PhD, Michelle D.V. Cluver, (BSc HONs), Martin G. Veller, FCS (SA) Journal of Vascular Surgery Volume 48, Issue 5, Pages 1189-1196 (November 2008) DOI: 10.1016/j.jvs.2008.06.057 Copyright © 2008 Terms and Conditions

Fig 1 Posterior aspect of right femur. A, B, and C represent areas of attachment of the medial head of the gastrocnemius muscle that were examined by magnetic resonance imaging. Journal of Vascular Surgery 2008 48, 1189-1196DOI: (10.1016/j.jvs.2008.06.057) Copyright © 2008 Terms and Conditions

Fig 2 Axial scan of the distal right femur shows the attachment of the medial head of the gastrocnemius muscle (MHGM). Lines show the width of the femur (f) and the extent of lateral to medial (w) attachment of the MHGM. Journal of Vascular Surgery 2008 48, 1189-1196DOI: (10.1016/j.jvs.2008.06.057) Copyright © 2008 Terms and Conditions

Fig 3 Coronal section of the right knee shows attachment of the medial head of the gastrocnemius muscle (MHGM) to the medial condyle. The MHGM is attached to 18% of the circumference of the medial condyle. Journal of Vascular Surgery 2008 48, 1189-1196DOI: (10.1016/j.jvs.2008.06.057) Copyright © 2008 Terms and Conditions

Fig 4 Axial scan of the right knee at the level of the intercondylar notch shows that 20% of the curve of the notch is occupied by medial head of the gastrocnemius muscle (MHGM) fibers. Journal of Vascular Surgery 2008 48, 1189-1196DOI: (10.1016/j.jvs.2008.06.057) Copyright © 2008 Terms and Conditions

Fig 5 Coronal scan of the right medial condyle in an occluder shows that 45% of the inner circumference of the medial condyle has medial head of the gastrocnemius muscle (MHGM) attached to it. The MHGM butts the neurovascular bundle within the intercondylar fossa. Journal of Vascular Surgery 2008 48, 1189-1196DOI: (10.1016/j.jvs.2008.06.057) Copyright © 2008 Terms and Conditions

Fig 6 Coronal scan of the right medial condyle in a nonoccluder shows that 18% of the inner circumference of the medial condyle has medial head of the gastrocnemius muscle (MHGM) fiber attached. In none of the more posterior or anterior images do muscle fibers occupy a greater attachment around the circumference. Journal of Vascular Surgery 2008 48, 1189-1196DOI: (10.1016/j.jvs.2008.06.057) Copyright © 2008 Terms and Conditions

Fig 7 Axial scan of the right intercondylar notch in a nonoccluder shows 20% attachment of medial head of the gastrocnemius muscle (MHGM) fibers within the notch. The MHGM remains outside the fossa. Journal of Vascular Surgery 2008 48, 1189-1196DOI: (10.1016/j.jvs.2008.06.057) Copyright © 2008 Terms and Conditions

Fig 8 Axial scan of the right intercondylar notch in an occluder shows 50% attachment of medial head of the gastrocnemius muscle (MHGM) fibers within the notch. The MHGM is close to the neurovascular bundle and occupies greater space within the fossa. Journal of Vascular Surgery 2008 48, 1189-1196DOI: (10.1016/j.jvs.2008.06.057) Copyright © 2008 Terms and Conditions

Fig 9 Axial scan of the right intercondylar notch in a nonoccluder shows 15% attachment of MHGM fibers within the notch. Journal of Vascular Surgery 2008 48, 1189-1196DOI: (10.1016/j.jvs.2008.06.057) Copyright © 2008 Terms and Conditions

Fig 10 Axial scan of the right intercondylar notch in an occluder shows 70% attachment across the fossa. Journal of Vascular Surgery 2008 48, 1189-1196DOI: (10.1016/j.jvs.2008.06.057) Copyright © 2008 Terms and Conditions