Healthcare and Medicine Reference
lower anterior track, which is the more primary part of
the DFL in our myofascial meridians approach. This
fascial line penetrates the adductor magnus through the
adductor hiatus with the neurovascular bundle, to
emerge on the anterior side of this muscle, in the inter-
muscular septum between the adductor group and the
quadriceps group (Fig. 9.20).
This septum lines the sulcus that underlies the sarto-
rius muscle. Although we keep to our tradition in
depicting this as a line, it is especially important here to
expand one's vision to see this part of the DFL as a
complex curvature in a three-dimensional fascial plane.
It sweeps up in a sail shape: at the surface, its 'leech'
(outer edge) runs up under the sartorius from just above
the inner part of the knee to the front of the hip and the
femoral triangle (with the sartorius acting as a 'leech
line' - adjustably tightening the edge of this fascia). The
Tuff (inner edge) follows the linea aspera on the 'mast'
of the femur from the medial posterior knee up the back
of the femur to the lesser trochanter (Fig. 9.21).
From here the main track of the DFL continues up on
the psoas muscle and associated fascia, which climb
forward and up from the lesser trochanter. The psoas
passes directly in front of the hip joint and rounds over
the iliopectineal ridge, only to dive backward, behind
the organs and their enfolded peritoneal bag, to join to
the lumbar spine (Fig. 9.22). Its proximal attachments are
to the bodies and transverse processes (TPs) of all the
lumbar vertebrae, frequently including T12 as well.
Each psoas fills in the gully between the bodies and TPs
in the front of the spine, just as the transversospinalii fill
in the laminar grooves between the TPs and spinous
processes behind the spine (Fig. 9.23).
In the groin, the anterior intermuscular septum opens
into the femoral triangle, or the Teg pit', bordered on the
medial side by the adductor longus, on the lateral side
by the sartorius, and superiorly by the inguinal liga-
ment (Fig. 9.24). Within the femoral triangle we find the
femoral neurovascular bundle, a set of lymph nodes,
and the continuation of the DFL myofascia - the ilio-
psoas on the lateral side and the pectineus on the medial
side, both covering the front of the hip joint and head
of the femur.
While the pectineus is confined to the femoral trian-
gle, both the psoas and the iliacus extend above the
Fig. 9.21 The anterior septum of the thigh presents a complex
curve not unlike a sail that sweeps from the linea aspera out to the
Fig. 9.20 The lower posterior track of the DFL follows the anterior
intermuscular septum between the adductors and the hamstrings.