One very interesting and quite useful observation when working with the musculoskeletal system is that the qi of the organs can be observed and palpated in the channels system. Of course, being part of the channels system, this includes the sinew channels. A very clear example of this is seen when working to balance the patella.
Fig. 2: Patella resected to see the femoral groove. |
The vastus lateralis is part of the Stomach jingjin and the vastus medialis is part of the Spleen jingjin. These muscles blend in with the lateral retinaculum and medial retinaculum of the patella respectively, and through this pull have a strong influence on the tracking of the patella. It is frequently the case that the vastus lateralis is overactive and pulls excessively upward on the lateral portion of the patella while the vastus medialis is inhibited and fails to lift the medial edge. The patella becomes pulled lateral and frequently has a medial tilt (the top points medial). This can be assessed by observing that the lateral edge frequently does not lift adequately and that the patella does not rotate away from the medial tilt (Fig. 3).
With your next patient who has chondromalacia patella or patellofemoral syndrome, do a mobility test on the patella and palpate the vastus medialis and vastus lateralis. These muscles can be a window into not only the function of the patella, but the function of the zangfu. Recall that in TCM the Stomach qi descends while the Spleen qi ascends. One of the functions of the Spleen is to lift. When you are palpating the vastus lateralis (ST jingjin), feel whether it is excessively tight and pulling on the patella through the lateral retinaculum. For the vastus medialis (SP jingjin), feel whether it lacks tone and is failing to lift the medial edge of the patella through the medial retinaculum. This can help understand how these muscles are involved with patellar tracking issues, but can also guide questioning to see if there are signs of internal disharmony such as rebellious Stomach qi and/or Spleen qi deficiency. If the vastus lateralis is excessively pulling upwards, you might find rebellious Stomach qi signs. If the vastus medialis lacks tone, you might find Spleen qi deficiency signs. The observation found with palpation can help guide questioning and/or can put information from you TCM assessment into context.
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