pathology: psoas minor syndrome

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psoas minor syndrome

Definition

The psoas minor is an inconstant muscle and is only pronounced in 30% – 60% of people. The origin is obviously always at the Th12 and the underlying intervertebral disc. Among the occurrences of the psoas minor is a portion in which it does not attach to the pubic bone but extends to the linea pectinea of the femur. The muscle does not always occur bilaterally; it is not uncommon for it to be unilateral, in which case it is slightly more common on the right than on the left. These people are susceptible to irritation of the psoas minor, especially if it is shortened. Contractures with bilateral occurrence lead to a hollow back due to its inclination function, contractures with unilateral occurrence lead to
scoliosis.

Cause

Contracture of the inconstant psoas minor

Diagnosis

  1. Occurrence: MRI
  2. Contracture: Functional tests

Symptoms

  1. Hollow back (bilateral occurrence of the psoas minor)
  2. Scoliosis (unilateral occurrence of the psoas minor)

Therapy

  • Stretching training: trunk side bends (unilateral occurrence) or lumbar spine extensions (bilateral occurrence). For femoral approach: hip extensions
  • Only if resistant to movement therapy: tendotomy

Asana practice

As can be seen from the above, a distinction must be made between a psoas minor with attachment to the pubic bone and one with attachment to the femur. A further distinction must be made between a unilateral and a bilateral occurrence. In the case of bilateral occurrence with attachment to the femur, symmetrical hip extensions are particularly helpful. If there is a unilateral occurrence with attachment to the femur, ipsilateral hip extensions are performed. side discrepancies in the lateral flexion of the spine must be checked and, if necessary, lateral trunk flexions to the contralateral side must be practiced. In the case of bilateral occurrence with attachment to the pubic bone, postures are required to promote flexion of the lumbar spine, such as rolling up the back from the supine position. A unilateral occurrence with attachment to the pubic bone primarily requires trunk side bends to the contralateral side, such as the sitting trunk side bend.

Asanas

Asanas in 666: Stretching the lateral flexors
Asanas in 712: Stretching the hip flexors