Intertrochanteric line

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Intertrochanteric line - Wikipedia

From Wikipedia, the free encyclopedia

Intertrochanteric line
Right hip-joint from the front. (Intertrochanteric line labeled at bottom left.)
Right femur. Anterior surface. (Intertrochanteric line visible near top, as diagonal line below neck.)
Details
Identifiers
Latin	linea intertrochanterica
TA98	A02.5.04.009
TA2	1368
FMA	74587
Anatomical terms of bone [edit on Wikidata]

The intertrochanteric line is a line upon the anterior aspect of the proximal end of the femur,^[1] extending between the lesser trochanter and the greater trochanter. It is a rough, variable ridge.^{[citation needed]}

Structure

The intertrochanteric line marks the boundary between the femoral neck and shaft anteriorly (whereas the intertrochanteric crest marks the same boundary posteriorly).^[2]

Attachments

The iliofemoral ligament — the largest ligament of the human body — attaches above the line.^[3] The lower half, less prominent than the upper half, gives origin to the upper part of the vastus medialis.^{[clarification needed]}^{[citation needed]}

The distal capsular attachment on the femur follows the shape of the irregular rim between the head and the neck. As a consequence, the capsule of the hip joint attaches in the region of the intertrochanteric line on the anterior side, but a finger away from the intertrochanteric crest on the posterior side of the head.^[4]

The fibers of the ischiocapsular ligament attach both into the joint capsule and onto the intertrochanteric line.

Clinical significance

Intertrochantric fractures

This area of the femur being an important pillar for weight bearing through the skeletal system is subject to comparatively high levels of dynamic stress, pathological strain, physiological strain and trauma. This area is prone to fractures due to high velocity trauma in the young and trivial trauma in the elderly. The fractures in this line are called intertrochantric fractures and are classified as per the pattern of the fracture geometry.

After a fracture this area of bone is notorious for uniting in varying, and sometimes problematic angles. Therefore, it typically requires early surgical reduction and fixation with early mobilization and weight bearing in order to facilitate enhanced recovery.

References

This article incorporates text in the public domain from page 245 of the 20th edition of Gray's Anatomy (1918)

^ White, Tim D.; Folkens, Pieter Arend (2005-11-08). The Human Bone Manual. Elsevier. ISBN 978-0-08-048899-8.
^ Platzer (2004), p 192
^ White (2005), p 256
^ Platzer (2004), pp 192, 198

Bibliography

Platzer, Werner (2004). Color Atlas of Human Anatomy, Vol 1: Locomotor system (5th ed.). Thieme. ISBN 3-13-533305-1. (ISBN for the Americas 1-58890-159-9.)
Timothy D., White; Pieter A. Folkens (2005). The Human Bone Manual. Academic Press. ISBN 0-12-088467-4. Retrieved 2008-10-11.

External links

Anatomy figure: 17:01-07 at Human Anatomy Online, SUNY Downstate Medical Center
lljoints at The Anatomy Lesson by Wesley Norman (Georgetown University) (hipjointanterior)

Bones of the human leg

Femur

upper extremity	head fovea neck greater trochanter fossa lesser trochanter intertrochanteric line intertrochanteric crest quadrate tubercle
shaft	linea aspera upper medial: merges with intertrochanteric line upper intermediate: pectineal line upper lateral: gluteal tuberosity / third trochanter
lower extremity	adductor tubercle patellar surface epicondyles lateral medial condyles lateral medial intercondylar fossa

Tibia

upper extremity	Gerdy's tubercle condyles lateral medial intercondylar area
shaft	tuberosity soleal line
lower extremity	medial malleolus Anterior colliculus Posterior colliculus fibular notch

Fibula

lateral malleolus

Other

patella
- apex

Foot

Tarsus	calcaneus sustentaculum tali calcaneal tubercle talus navicular cuboid cuneiform medial intermediate lateral
Metatarsals	1st 2nd 3rd 4th 5th
Other	Phalanges

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