陰廉 : Yinlian : Yin Corner

Location Guides:

Classifications:

Trigger point (Travell & Simons, 1998, Trigger Point Manual); Melzack, Stillwell & Fox, 1977)

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Location:

2 cun inferior to Qichong (2 cun from the midline, level with the symphysis pubis, Qugu Ren-2) on the anterior border of m. adductor longus.

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Needling:

Perpendicular or oblique insertion 0.5 - 1.5 cun

Classical Needling:

"The Jueyin usually has much Blood and little Qi" (Su Wen 素問 ch. 24) implying this channel should normally be bled.
"The foot Jueyin is to be pierced 1 fen deep and remain inserted for two exhalations" (Ling Shu 靈樞 ch. 12).
"It is needled to a depth of three fen, and it is moxaed with three cones" (Huangfu Mi 皇甫謐, 3rd Century, Zhenjiu Jiayi Jing 針灸甲乙經).

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TCM Actions:

Benefits the uterus

TCM Indications:

• Infertility, irregular menstruation, pain in the inner thigh and knee.

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Neuroanatomy:

Superficial Innervation: Obdurator nerve (L2 - L3)

Dermatome Segment: L3

Trigger Point Associations:

Muscle:
Adductor longus and psoas

Myotome Innervation:
Anterior branch of obdurator nerve (L2 - L4); Psoas: L1-L4 and small branches of the femoral nerve.

Location Notes:
Psoas trigger point is located lateral to the femoral artery.

Pain Referral Pattern:
Radiating from the point to the anterior of the hip and medial aspect of the thigh. Also radiating down the medial aspect of the leg with concentration around the upper medial border of the patella.
Psoas: Lower back, front of leg and groin.

Indications:
Strain of adductor muscles ; Degenerative diseases of the hip

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Martial Applications & Effects of Injury:

One of the 36 vital points of Feng Yiyuan 馮一元 listed in the Wu Bei Zhi 武備志 (Treatise on Armament Technology) by Mao Yuanyi 茅元儀 (1621) (McCarthy, 2016, Bubishi: The Classic Manual of Combat).

See Montaigue, Dim Mak Locations, Taijiworld.com for explanation of effects.

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Notes:

Many classical text indicate moxibustion at this point for infertility.

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In Mayan medicine:
Used to treat pain in the lower limbs (Garcia, Sierra, Balam, 1999: Wind in the Blood)

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Reference Notes:

Basic information on location, needle depth, TCM actions, indications and combinations is taken from Deadman et al (2001): A Manual of Acupuncture with additional anatomical information researched by reference to Gray's Anatomy (38th Ed., 1995) unless otherwise referenced. Images were found on acupunctureschoolonline.com and can be traced back to Claudia Focks (2008) Atlas of Acupuncture originally. I cannot claim any credit or rights over them. Other sources should be quoted in the text.

For some of the more unusual terms I have created a glossary here

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