Items tagged “hip”

126 results found
Article

Ficat and Arlet classification of avascular necrosis of femoral head

The Ficat and Arlet classification uses a combination of plain radiographs, MRI, and clinical features to stage avascular necrosis of the femoral head. Classification stage 0 plain radiograph: normal MRI: normal clinical symptoms: nil stage I plain radiograph: normal or minor osteopenia ...
Article

Idiopathic transient osteoporosis of the hip

Idiopathic transient osteoporosis of the hip (ITOH) is a self-limiting clinical entity of unknown cause, although almost certainly a vascular basis and possible overactivity of the sympathetic system exists. There is some controversy as to whether ITOH represents a very early, reversible stage o...
Article

Perthes disease

Perthes disease (also referred to as Legg-Calvé-Perthes disease) refers to idiopathic avascular necrosis (AVN) of the femoral epiphysis seen in children. It should not be confused with Perthes lesion of the shoulder. It is a diagnosis of exclusion and other causes of avascular necrosis (includi...
Article

Pitt pit

Pitt pit refers to an oval or round lucency in the anterosuperior aspect of the femoral neck, just distal to the articular surface. It represents a herniation of synovium or soft tissues into the bone through a cortical defect, hence the alternate name synovial herniation pit. They are usually a...
Article

Shenton line

Shenton line is an imaginary curved line drawn along the inferior border of the superior pubic ramus (superior border of the obturator foramen) and along the inferomedial border of the neck of femur. This line should be continuous and smooth.   Interruption of the Shenton line can indicate (in ...
Article

Slipped upper femoral epiphysis

Slipped upper femoral epiphysis (SUFE), also known as a slipped capital femoral epiphysis (SCFE), is a relatively common condition affecting the physis of the proximal femur in adolescents. It is one of commonest hip abnormalities in adolescence and is bilateral in ~20% of cases. Epidemiology ...
Article

Ultrasound of the hip (adult)

There are several approaches to ultrasound examination of the adult hip.  Anterior approach Patient positioning supine with the hip in mild external rotation Planes sagittal oblique plane parallel to the long axis of the femoral neck to assess femoral head and neck and for any joint effusio...
Article

Graf method for ultrasound classification of developmental dysplasia of the hip

The Graf method for ultrasound classification system for developmental dysplasia of the hip (DDH) in infants, combines both alpha and beta angles. There are a number of additional subdivisions, which are often not used clinically.  As a general rule, the alpha angle determines the type and in s...
Article

Alpha angle (developmental dysplasia of the hip)

The alpha angle is a measurement used in the ultrasonographic assessment of developmental dysplasia of the hip (DDH). The angle is formed by the acetabular roof to the vertical cortex of the ilium and thus reflects the depth of the bony acetabular roof. This is a similar measurement to the acet...
Article

Beta angle (developmental dysplasia of the hip)

The beta angle is a measurement used in the ultrasonographic assessment of developmental dysplasia of the hip (DDH). It is defined as the angle formed between the vertical cortex of the ilium and the triangular labral fibrocartilage (echogenic triangle) and thus reflects the femoral head cartil...
Case

Pincer femoroacetabular impingement

 Diagnosis certain
A.Prof Frank Gaillard
Published 19 May 2008
82% complete
X-ray
Article

Piriformis

The piriformis muscle is a muscle in the gluteal region of the lower limb. Summary origin: sacrum course: exits the pelvis through the greater sciatic foramen insertion: greater trochanter of the femur action: abduction and lateral rotation of the thigh arterial supply superior gluteal ar...
Case

Acute hip arthritis

 Diagnosis probable
Dr G Balachandran
Published 26 Jan 2009
65% complete
MRI
Article

Osteoarthritis of the hip (grading)

Osteoarthritis of the hip can be graded according to severity on imaging. Conventional radiograph grading grade 0: normal grade 1: possible joint space narrowing and subtle osteophytes grade 2: definite joint space narrowing, defined osteophytes and some sclerosis, especially in the acetabul...
Article

Legg-Calvé-Perthes disease (staging)

Staging of Legg-Calve-Perthes syndrome refers to x-ray abnormalities, and represents 4 phases of the disease: stage I: early asymmetric femoral epiphyseal size (smaller on the affected side) apparent increased density of the femoral head epiphysis widening of the medial joint space blurring...
Article

Crescent sign of avascular necrosis

The crescent sign of avascular necrosis is seen on conventional radiographs and refers to a linear area of subchondral lucency seen most frequently in the anterolateral aspect of the proximal femoral head (which is optimally depicted on the frog-leg radiographic view). It indicates imminent arti...
Case

Slipped capital femoral epiphysis

 Diagnosis certain
Dr Gagandeep Singh
Published 19 Sep 2009
72% complete
X-ray
Case

Gluteus medius tear

A.Prof Frank Gaillard
Published 23 Sep 2009
21% complete
MRI
Article

Acetabular labrum

Acetabular labrum acts to deepen the acetabulum and increase contact between the pelvis and the femoral head. Its exact biomechanical role remains to be fully elucidated. Gross anatomy The acetabular labrum is a C-shaped fibrocartilaginous structure with an opening anteroinferiorly at the site...
Article

Perilabral sulcus

The perilabral sulcus is a physiological space between the acetabular labrum and capsule of the hip joint, which inserts next to the base of the labrum and is therefore intra-articular. Superiorly the capsule's attachment is displaced from the labrum by a few millimeters and thus the sulcus is ...

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