Psoas Minor

Original Editor - Oyemi Sillo

Lead Editors - Kim Jackson, Eman Ammar, Lucinda hampton, Maram Salem, WikiSysop and Oyemi Sillo  

Description

-Psoas Minor is a long slender muscle, placed in front of the Psoas major.

-The psoas minor is a thin, paired muscle of the posterior abdominopelvic region. It is located on the anterior aspect of the psoas major muscle, but does not extend with it beyond the inguinal ligament. Despite its close relation to the psoas major muscle, the psoas minor is not considered part of the iliopsoas muscle complex.

Origin

-Lateral aspect of vertebral body of 12th thoracic and 1st lumbar vertebrae

Insertion

-Pectineal line of pubis

Nerve Supply

-Small branch from the initial part of the lumbar ventral ramus(L1)

Blood Supply

-Lumbar arteries, lumbar branch of the iliolumbar artery.

Action

-Assists with flexion of the lumbar vertebral column

Clinical relevance

iliopsoas tendinitis

• a rare cause of pain in the groin that has been associated with inflammatory arthritis, acute trauma, and overuse syndromes
• commonly seen in athletes, often runners, dancers, and high jumpers
• usually results from overuse or trauma. It is frequently known as jumpers hip or dancers hip
• iliopsoas tendonitis following total arthroscopic hip replacement iliopsoas syndrome can be reasonably commonplace
• psoas syndrome is usually a term used interchangeably with iliopsoas tendinitis, internal snapping hip, or iliopsoas impingement

Treatment

-nonoperative treatment;

1. including rest,
2. nonsteroidal anti-inflammatory medications,
3. and a stretching program, has been recommended for the treatment of this condition - exercise programs that the patient can do at home with a focus on hip rotation have demonstrated effectiveness in the reduction of pain and improvement of activity for patients in pain

-surgical interventon

• for refractory cases requiring surgery, arthroscopic lengthening of the tendon can be completed for relief, and correcting intra-articular pathology can be done
• release of the psoas tendon from the insertion is also a possible surgical option