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Femur
From WikiSM
(Redirected from Lesser Trochanter)
Contents
Description
Greater Trochanter
Bursa
- Subgluteus maximus bursa
- Lateral to the greater trochanter, between the tendons of gluteus maximus and medius
- Sometimes divided into up to 4 seperate bursa
- Deep subgluteus maximus bursa: largest, most consistent of these subdivisions, often referred to as the “trochanteric bursa”, implicated in Greater Trochanteric Pain Syndrome
- Other components include secondary deep, superficial, gluteofemoral
- Subgluteus medius bursa
- Up to 3 bursa, largest on anterior surface of greater trochanter
- Gluteus minimus bursa
- Minor bursa, deep to the minimus insertion on the anterior aspect of the greater trochanter.
Trochlear Groove
- Partially responsible for stabilizing patella during knee flexion and extension
Other Structures
- Peritrochanteric Compartment
- Contents: "trochanteric bursa"
- Anterior border: proximal Sartorious, Tensor Fascia Latae
- Medial border: Gluteus Medius, Gluteus Minimus
- Lateral border: fibers of Iliotibial Band
- Inferior border: terminates at the level of the gluteal sling insertion
- Clinical significance: Portal for hip arthroscopy
- Lateral Compartment
- Peripheral compartment
Muscle Insertion
- Greater Trochanter attachments
- Lesser Trochanter attachments
- Adductor Tubercle attachments
- Linea Aspera attachments
Actions
- Femoral neck-shaft axis forms an angle of 120-135°
Vascular Supply
- General
- Primarily from Femoral Artery
- Femoral Neck is tenuous
- Medial femoral circumflex artery
- Lateral femoral circumflex artery
- Artery of the ligamentum teres (minor)
Innervation
Clinical Significance
- Proximal
- Shaft
- Distal