Abstract:
OBJECTIVE:Accurate insertion of a guidewire under image intensifier guidance is a fundamental skill required by orthopaedic surgeons. This study investigated how image intensifier distortion, which is composed of pin-cushion and sigmoidal components, changed the apparent trajectory of a guidewire, and the resulting deviation between the intended and actual guidewire tip position. MATERIALS AND METHODS:Intraoperative image intensifier images for 220 consecutive patients with hip fractures were retrospectively corrected for distortion using a global polynomial method. The deviation between the intended and actual guidewire tip positions was calculated. Additional distortion parameters were tested using an image intensifier produced by a different manufacturer, and a flat-panel c-arm. RESULTS:Deviation was approximately 1 cm if the guidewire was aimed from the extremity of the image and almost 0 if the entry point was only 20% from the centre (p < 0.001). The direction of deviation was different for left and right hips, with average deviations measuring 3 mm proximal and 5 mm distal respectively (p < 0.001). The flat-panel c-arm almost completely eliminated distortion. CONCLUSIONS:Image intensifier distortion significantly altered the intended trajectory of a guidewire, with guidewires aimed from the image periphery more affected than guidewires aimed from the centre. Furthermore, for right hips, guidewires should be aimed distal to their intended position, and for left hips they should be aimed proximal to achieve their desired position. The flat-panel c-arm eliminated the effect of distortion; hence, it may be preferable if precision in guidewire positioning is vital.
journal_name
Skeletal Radioljournal_title
Skeletal radiologyauthors
Ward TR,Schwarz B,Le BTN,Smith GCS,Molnar RB,Smith PNdoi
10.1007/s00256-019-03171-7subject
Has Abstractpub_date
2019-09-01 00:00:00pages
1393-1398issue
9eissn
0364-2348issn
1432-2161pii
10.1007/s00256-019-03171-7journal_volume
48pub_type
杂志文章abstract::Four patients with histologically confirmed osteonecrosis of the first metatarsal sesamoid are presented. No patient was an athlete, nor recalled any noticeable trauma or significant stress as having occurred to the feet. No foot deformities or joint malalignments were found. Excellent results were obtained by excisio...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/BF00350208
更新日期:1986-01-01 00:00:00
abstract:UNLABELLED:To evaluate the computed tomography (CT) findings of inflammatory lesions of the sternoclavicular joints (SCJ) in spondylarthropathies. DESIGN AND PATIENTS:CT scans of the SCJs were obtained in 23 patients (group 1) with inflammatory SCJ lesions in spondylarthropathies. These scans were reviewed by four rea...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s002560050258
更新日期:1997-07-01 00:00:00
abstract:OBJECTIVE:Image-guided percutaneous bone biopsy may be requested by clinicians to guide antibiotics management decisions in patients with extremity osteomyelitis. Much of the clinical literature describes a high rate of bone biopsy culture positivity in patients with osteomyelitis, but anecdotally biopsy is felt to be ...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-019-3152-4
更新日期:2019-09-01 00:00:00
abstract::We describe two cases of pigmented villonodular synovitis affecting true bursae. This study was also designed to discuss the term "pigmented villonodular bursitis", not confined to true synovial bursae, sometimes creating misunderstanding. ...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-002-0491-2
更新日期:2002-06-01 00:00:00
abstract::The case of a 55-year-old man with chondrosarcoma to the cervical spine is described. Two years previously the patient had undergone a right hip replacement for synovial chondromatosis. Re-evaluation of the biopsy specimen from the right hip taken at the time of the initial operation showed areas of chondrosarcoma ari...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s002560050249
更新日期:1997-06-01 00:00:00
abstract:OBJECTIVE:To determine normative values for volume and fat content of the gluteus medius (GMed) and minimus (GMin) muscle in healthy volunteers and to evaluate their dependence on age, gender and leg dominance. MATERIALS AND METHODS:The IRB approval was obtained for this study. 80 healthy volunteers (females, 40; male...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-015-2325-z
更新日期:2016-04-01 00:00:00
abstract::The spectrum of radiographic abnormalities accompanying bone and joint infection that results from human bites of the hand is presented in an analysis of 13 patients. Features include mono-articular involvement, predilection for a metacarpophalangeal joint, soft tissue swelling, joint space narrowing, bone erosions an...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/BF00352616
更新日期:1985-01-01 00:00:00
abstract:OBJECTIVE:To describe the frequency of inflammatory-like findings on MR imaging in asymptomatic volunteers and compare them with patients with known rheumatoid arthritis and psoriatic arthritis. MATERIALS AND METHODS:MR images of fingers in 42 asymptomatic volunteers and 33 patients with rheumatoid/psoriatic arthritis...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-017-2808-1
更新日期:2018-02-01 00:00:00
abstract::POEMS syndrome is a rare disorder in which patients present with the hallmark signs of polyneuropathy, organomegaly, endocrinopathy, M protein and skin changes. Many other clinical findings are also often present, most notably osseous lesions. The MRI appearance of the bony lesions in POEMS syndrome has been described...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-005-0941-8
更新日期:2006-09-01 00:00:00
abstract::A 2-year-old child presenting with bone pain and bone lesions was found to have sinus histiocytosis with massive lymphadenopathy (SHML). SHML presenting with skeletal symptoms is unusual. Management has been conservative and the child has been symptom free for 30 months, although the bone lesions have not completely r...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s002560050349
更新日期:1998-02-01 00:00:00
abstract::Aneurysms of the distal radial artery at the level of the wrist are rare. Most reported cases are posttraumatic, either from iatrogenic arterial puncture for radial arterial access or from a penetrating injury. Other causes include infection and connective tissue disorders. Early diagnosis is important to avoid the po...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-018-3061-y
更新日期:2019-06-01 00:00:00
abstract::MRI of a 62-year-old female presenting with ankle pain demonstrated an accessory muscle within the anterior compartment of the lower leg. The muscle originated from the fibula and anterior crural septum. The tendon passed anterior to the lateral malleolus and inserted at the critical angle of Gissane on the calcaneus....
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-014-2021-4
更新日期:2015-05-01 00:00:00
abstract::Digital and manual subtraction images obtained during the arthrographic evaluation of 78 painful hip prostheses were reviewed retrospectively. Revision arthroplasty was performed in 53 of these cases, and the arthrographic and surgical findings were correlated. The digital and manual subtraction images were evaluated ...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/BF00191080
更新日期:1991-01-01 00:00:00
abstract:AIM:The aim of the study is to assess the feasibility of whole-body low-dose computed tomography (WBLDCT) in the diagnosis and staging of multiple myeloma and compare to skeletal survey (SS), using bone marrow biopsy and whole-body magnetic resonance imaging (WBMRI; where available) as gold standard. MATERIALS AND MET...
journal_title:Skeletal radiology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00256-008-0607-4
更新日期:2009-03-01 00:00:00
abstract::The radiomorphological appearance of fibrous metaphyseal defects (FMDs) is demonstrated by long-term follow-up studies. A characteristic radiomorphological course rather than a typical single appearance can be established. These findings correlate well with the duration of these tumor-like lesions; therefore, the radi...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/BF00361448
更新日期:1988-01-01 00:00:00
abstract:OBJECTIVE:To evaluate and compare two groups of patients with sciatica due to intervertebral disc herniation with no neurologic deficit. The groups consisted of patients with intervertebral disc herniation in a medial location (group 1) and those in a lateral location (group 2). MATERIALS AND METHODS:A total of 200 pa...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-012-1422-5
更新日期:2013-01-01 00:00:00
abstract::Fourteen telangiectatic osteosarcomas are reported. They are rare, clinically and radiologically aggressive lesions, involving mainly the femurs of young patients, often misdiagnosed as aneurysmal bone cysts. An explanation for a characteristic early radiological appearance consisting of regular parallel striations of...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/BF00356952
更新日期:1987-01-01 00:00:00
abstract::The appearance on magnetic resonance imaging (MRI) of 16 cases of pathologically proven eosinophilic granuloma were reviewed retrospectively and correlated with the radiographic appearance of the lesion. The most common MR appearance (ten cases) was a focal lesion, surrounded by an extensive, ill-defined bone marrow a...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/BF00206144
更新日期:1993-01-01 00:00:00
abstract:OBJECTIVE:To determine the ultrasonographic changes after steroid injection in carpal tunnel syndrome (CTS) and to evaluate the diagnostic value of ultrasound in post-treatment examination with clinical correlation. MATERIALS AND METHODS:Twenty-seven wrists with idiopathic CTS after a single injection of 40 mg of pred...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-017-2738-y
更新日期:2017-11-01 00:00:00
abstract::Self-regressing subperiosteal defects appearing during consolidation of fractures were observed in two children aged 6 and 10 years, in the tibia and the radius respectively. These transient defects appeared several weeks after fracture, at a distance from the fracture site. They involved the newly formed subperiostea...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/BF00348864
更新日期:1986-01-01 00:00:00
abstract:OBJECTIVE:To analyse to what extent MR imaging based decisions were correct in determining the surgical procedure in patients with osteosarcoma of the distal femur. DESIGN:We compared the findings on MR imaging that determined the surgical strategy with the actual surgical findings or histopathological specimen. We as...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s002560050302
更新日期:1997-11-01 00:00:00
abstract::Observation of a case of progressive bilateral parietal thinning within a period of 14 years induced us to study skull films of 3,636 consecutive patients. Parietal thinning was found in 86 patients (2.37%). It was more common in women, with a sex ratio of 1:1.9. The mean age of the females was 72 years, and that of t...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/BF00361365
更新日期:1982-01-01 00:00:00
abstract::We report a case of intracortical OS of the mid-femur in a 43-year-old man. The patient is the oldest reported to date. Histologically, the tumor was a sclerosing variant of OS with extensive "normalization" of nuclei. This is the most common histological subtype of intracortical OS. The patient was treated by en bloc...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/BF01106096
更新日期:1991-01-01 00:00:00
abstract::Although limb swelling is a well-known complication of vaccination, its rarity and wide band of differential diagnosis of limb swelling make it a diagnostic challenge. In this case report, we describe three cases of vaccine-induced myositis with intramuscular sterile abscess formation in patients with limb swelling an...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-015-2242-1
更新日期:2015-12-01 00:00:00
abstract:OBJECTIVE:A bone infarct may occasionally dedifferentiate to osteogenic sarcoma, fibrosarcoma or malignant fibrous histiocytoma. However, the association of an angiosarcoma with a bone infarct is extremely rare. Such an association is presented in three patients. Their clinical course is compared with that of patients ...
journal_title:Skeletal radiology
pub_type: 杂志文章,评审
doi:10.1007/s002560050435
更新日期:1998-10-01 00:00:00
abstract:OBJECTIVE:We used magnetic resonance imaging (MRI) to evaluate where articular degeneration begins and which ligaments are most often involved in the early clinical stage first carpometacarpal joint (CMCJ-1) osteoarthritis. MATERIALS AND METHODS:We retrospectively analyzed the MRI findings of 26 patients with early cl...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-020-03383-2
更新日期:2020-07-01 00:00:00
abstract::The clinical results of total joint arthroplasty are usually excellent, but surgeons, radiologists, and pathologists are often called upon to evaluate, in one way or another, the stability of the implants. These evaluations are aided by an understanding of the basic pathophysiology of total joint arthroplasty. The fir...
journal_title:Skeletal radiology
pub_type: 杂志文章,评审
doi:10.1007/s002560050541
更新日期:1999-08-01 00:00:00
abstract::Fibroma of the tendon sheath, a rare benign soft tissue tumor that most often occurs in the distal upper extremities (hands and wrist), is exceedingly rare to present as an intraarticular mass. Presented here is the first case in the English literature, to our knowledge, of a fibroma of the tendon sheath arising in th...
journal_title:Skeletal radiology
pub_type: 杂志文章,评审
doi:10.1007/s00256-013-1749-6
更新日期:2014-05-01 00:00:00
abstract::Three cases of calcific tendinitis occurring at an unusual site (vastus lateralis tendon) are described. Findings on conventional radiography and computed tomography together with the clinical history are characteristic for this disorder and reflect its natural evolution. The actual role of magnetic resonance imaging ...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/BF00243716
更新日期:1991-01-01 00:00:00
abstract:OBJECTIVE:To compare performances in diagnosing intertrochanteric hip fractures from proximal femoral radiographs between a convolutional neural network and orthopedic surgeons. MATERIALS AND METHODS:In total, 1773 patients were enrolled in this study. Hip plain radiographs from these patients were cropped to display ...
journal_title:Skeletal radiology
pub_type: 杂志文章
doi:10.1007/s00256-018-3016-3
更新日期:2019-02-01 00:00:00