120 results found
Case
Femoral head blood supply
Published
15 Apr 2022
47% complete
Diagram
Article
Hip protocol (MRI)
The MRI hip protocol encompasses a set of different MRI sequences for the routine assessment of the single hip joint.
Note: This article aims to frame a general concept of an MRI protocol for the assessment of a single hip joint. Protocol specifics will vary depending on MRI scanner type, speci...
Article
Pelvis (AP view)
The AP pelvis view is part of a pelvic series examining the iliac crest, sacrum, proximal femur, pubis, ischium and the great pelvic ring.
Indications
This view is of considerable importance in the management of severely injured patients presenting to emergency departments 1. It helps to asse...
Article
Pathological fracture
Pathological fractures are fractures that occur in abnormal bone and occur spontaneously or following minor trauma that would not otherwise fracture biomechanically normal bone.
Terminology
The term pathological fracture is usually reserved for tumors, either benign or malignant, although it h...
Article
Pediatric femur (lateral view)
The lateral femur view for pediatrics is part of a standard series examining the femur in its entirety, including the hip and knee joint.
Indications
This view demonstrates the femur in an orthogonal position to the AP view. This allows assessment of suspected dislocations, fractures, localizi...
Article
Joint effusion
A joint effusion is defined as an increased amount of fluid within the synovial compartment of a joint.
There is normally only a small amount of physiological intra-articular fluid. Abnormal fluid accumulation can result from inflammation, infection (i.e. pus) or trauma and might be exudate, tr...
Article
Trabecular pattern of proximal femur
Trabecular pattern of proximal femur refers to the five groups of trabeculae that are demonstrable within the femoral head and neck.
Basic concept
Trabecula is a supportive and connective tissue element which form in cancellous bone. Trabeculae develop in a normal bone and also in a healing bo...
Article
Femur (lateral view)
The lateral femur view is part of a standard series examining the femur in its entirety, including the hip and knee joint. Due to the limitations of the image detector, these projections are often performed in two images per view to ensure inclusion of both knee and hip joints.
Indications
Thi...
Article
Generalized lymphatic anomaly
Generalized lymphatic anomaly, previously known as lymphangiomatosis or cystic angiomatosis, is a systemic condition characterized by multifocal lymphatic malformations with systemic distribution. The distribution of lesions is variable; there can be cutaneous, thoracic and abdominal viscera and...
Article
Hip joint injection (technique)
Hip joint injections can be performed with a variety of image guidance, including fluoroscopy and ultrasound, which are used to administer MRI arthrogram injectate, or a steroid containing anesthetic arthrogram injectate.
Indications
MRI: labral injury
anesthetic
pain/arthropath...
Article
Femoral neck-shaft angle
The femoral neck-shaft angle (NSA) or caput-collum-diaphyseal (CCD) angle is one of the most frequently applied measurements to assess hip morphology, in particular, the relation of the femoral shaft to the femoral head-neck axis.
Usage
The femoral head-neck-shaft angle is used in the diagnosi...
Article
Hip resurfacing arthroplasty
Hip resurfacing arthroplasties are a type of joint replacement which may be used in the treatment of active patients with end-stage pathology of the hip joint.
The major difference as compared to conventional hip arthroplasty is that resurfacing arthroplasties have femoral components with large...
Article
Chondrosarcoma
Chondrosarcomas are a heterogeneous group of malignant cartilaginous tumors most commonly found in older patients. They can arise de novo or secondary from an existing benign cartilaginous neoplasm. On imaging, these tumors have ring-and-arc chondroid matrix mineralization with aggressive featur...
Article
Hip (Clements-Nakayama view)
The Clements-Nakayama view of the hip is a highly specialized lateral projection utilized on patients with bilateral femoral fractures, or patients unable to mobilize due to postoperative requirements. When performed correctly the projection can yield images of a high diagnostic quality comparab...
Case
Femoroacetabular impingement - pincer-type
Published
27 Mar 2016
79% complete
Annotated image
X-ray
Article
Synovial folds of the hip
Synovial folds or plicae of the hip are vestigial structures within the hip joint and include labral and ligamental plicae as well as the femoral retinacula.
Gross anatomy
The following synovial folds, plicae or retinacula have been described in the hip joint 1-5:
femoral neck plicae or retin...
Article
Fibrous dysplasia
Fibrous dysplasia (FD) is a developmental benign medullary fibro-osseous process characterized by the failure to form mature lamellar bone and arrest as woven bone that can be multifocal. It can affect any bone and occur in a monostotic form involving only one bone or a polyostotic form involvin...
Article
Osteoporosis
Osteoporosis is a metabolic bone disease characterized by decreased bone mass and skeletal fragility.
The World Health Organization (WHO) operationally defines osteoporosis as a bone mineral density T-score less than -2.5 SD (more than 2.5 standard deviations under the young-adult mean), which ...
Article
Slipped upper femoral epiphysis
Slipped upper femoral epiphysis (SUFE), also known as a slipped capital femoral epiphysis (SCFE), (plural: epiphyses) is a relatively common condition affecting the physis of the proximal femur in adolescents. It is one of the commonest hip abnormalities in adolescence and is bilateral in 20-40%...
Article
Osteoid osteoma
Osteoid osteomas are benign bone-forming tumors that typically occur in children (particularly adolescents). They have a characteristic lucent nidus <1.5 or 2 cm and surrounding osteosclerotic reaction, which classically causes night pain that is relieved by the use of NSAIDs.
Epidemiology
Ost...
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