Postoperative rotator cuff integrity: can we consider type 3 Sugaya classification as retear?

Background: Sugaya classification is a widely accepted classification system that is used to analyze postoperative rotator cuff tendon integrity. However, there are inconsistencies in the literature as to whether type 3 Sugaya should be considered as a retear or healed tendon.

Purpose: We aimed to show that type 3 Sugaya is not a retear by comparing the long-term supraspinatus and infraspinatus muscle degeneration and the functional outcomes of type 3 with those of type 4 and 5 Sugaya.

Dual-energy CT in vertebral compression fractures: performance of visual and quantitative analysis for bone marrow edema demonstration with comparison to MRI.

Objective: To prospectively evaluate the performance of virtual non-calcium (VNC) dual-energy CT (DECT) images for the demonstration of trauma-related abnormal marrow attenuation in collapsed and non-collapsed vertebral compression fractures (VCF) with MRI as a reference standard.

Materials And Methods: Twenty patients presenting with non-tumoral VCF were consecutively and prospectively included in this IRB-approved study, and underwent MRI and DECT of the spine. MR examination served as a reference standard.

Rapid osteolysis of the femoral neck: consequence of an insufficiency fracture of the hip?

Purpose: To describe the imaging and clinical features of rapid osteolysis of the femoral neck in an attempt to better understand this uncommon pathology.

Materials And Methods: We retrospectively reviewed the files of 11 patients (six women and five men) aged 53-78 years diagnosed with rapid osteolysis of the femoral neck. Available imaging studies included radiographs, CT, MRI, and bone scintigraphy.

Cone-beam computed tomography arthrography: an innovative modality for the evaluation of wrist ligament and cartilage injuries.

Purpose: Cone-beam computed tomography (CBCT) has become an important modality in dento-facial imaging but remains poorly used in the exploration of the musculoskeletal system. The purpose of this study was to prospectively evaluate the performance and radiation exposure of CBCT arthrography in the evaluation of ligament and cartilage injuries in cadaveric wrists, with gross pathology findings as the standard of reference.

Materials And Methods: Conventional arthrography was performed under fluoroscopic guidance on 10 cadaveric wrists, followed by MDCT acquisition and CBCT acquisition.

Intercostal myositis ossificans misdiagnosed as osteosarcoma in a 10-year-old child.

Myositis ossificans (MO) is a rare benign cause of heterotopic bone formation within soft tissue. It most commonly affects adolescents and young adults, typically in the limbs and following trauma. Very few cases have been reported in children.

MDCT arthrography or MR arthrography for imaging the wrist joint?

Imaging of the wrist joint has been radically modified over the last decade, particularly since multidetector computed tomography (MDCT) arthrography and magnetic resonance (MR) arthrography have become widely available. These two modalities allow a confident assessment of ligament tears and potential diagnosis of associated abnormalities of cartilage, bone, and soft tissues. The interosseous scapholunate and lunotriquetral ligaments and the triangular fibrocartilage complex (TFCC) are the most important structures to consider.

Multidetector CT arthrography of the wrist joint: how to do it.

With its exquisite spatial resolution, multidetector computed tomographic (CT) arthrography of the wrist is a valuable tool for the diagnosis and evaluation of a wide spectrum of articular disorders. Traumatic tears of the interosseous ligaments can be classified as complete or incomplete and as partial- or full-thickness tears at multidetector CT arthrography and can also be differentiated from asymptomatic degenerative lesions. In addition, tears of the triangular fibrocartilage complex can be differentiated according to their location.

Anterior approach for knee arthrography: tolerance evaluation and comparison of two routes.

Purpose: To prospectively evaluate patient tolerance and technical success of the anterior knee puncture approach for arthrography by using two different routes.

Materials And Methods: The study had Strasbourg University Hospital review board approval. Informed consent was obtained from all patients (and from their parents, if patients were minors).

Navigated non-image-based positioning of the acetabulum during total hip replacement.

We tested the hypothesis that the non-image-based navigation system used in our department was able to measure accurately the 3D positioning of the acetabular cup of a total hip replacement (THR) and to increase the accuracy of its implantation during THR. We studied 50 consecutive navigated implantations of a THR and compared the intra-operative measurement of the cup by the navigation system to the post-operative measurement by computed tomography (CT) scan. The mean difference between the navigated and CT scan measurements for cup inclination was 2 degrees .

Wrist ligament tears: evaluation of MRI and combined MDCT and MR arthrography.

Objective: The purpose of this study was to evaluate the performance of MRI and a combination of MDCT arthrography and MR arthrography in the diagnosis of tears and cartilage abnormalities of the wrist ligaments.

Subjects And Methods: The feasibility of combining MDCT arthrography and MR arthrography and performing them with an optimized contrast solution was evaluated in vitro and in vivo. Forty-five consecutively enrolled subjects with suspected wrist ligament tears underwent MRI and a combined MDCT and MR arthrographic procedure.

Should plain X-rays be routinely performed after blunt knee trauma? A prospective analysis.

Background: We tested the hypothesis that it was possible to decrease the number of performed x-rays after a knee trauma without delayed fracture diagnosis by using the Ottawa knee rules.

Methods: Patients had routine x-rays of the injured knee during the first stage of the study and selective x-rays during the second stage. All patients were followed up to 6 months after the trauma.

Percutaneous Laser Photocoagulation of Osteoid Osteomas.

Osteoid osteoma is a painful benign bone tumor. The curative treatment of this tumor consists of complete surgical or percutaneous excision of the nidus with immediate and dramatic relief of symptoms. Interstitial laser photocoagulation (ILP) is a low-invasive percutaneous technique of thermal destruction (coagulation) of deep-seated tumors elsewhere in the body, using low-power laser energy.