MR Imaging of the Hip: Infectious and Inflammatory Conditions.

MR imaging is a useful tool in establishing the diagnosis of inflammation and/or infection in the hip joint and adjacent tissues, and in determining the extent of disease. In conjunction with clinical factors, MR imaging findings can help to narrow the differential diagnosis in individual cases and can guide decisions regarding biopsies, aspirations, or additional imaging.

Does a dedicated "Scoliosis Team" and surgical standardization improve outcomes in adolescent idiopathic scoliosis surgery and is it reproducible?

Purpose: The objective of this study was to determine if standardization improves adolescent idiopathic scoliosis (AIS) surgery outcomes and whether it is transferrable between institutions.

Methods: A retrospective review was conducted of AIS patients operated between 2009 and 2021 at two institutions (IA and IB). Each institution consisted of a non-standardized (NST) and standardized group (ST).

Utility of the coned-down lateral view of the lumbosacral spine.

Objective: At certain institutions and radiology practices, a routine lumbar radiographic exam may include 3 views: AP, lateral, and coned-down lateral of the lumbosacral junction. The purpose of this study is to determine whether the third coned-down-lateral view adds significant diagnostic information regarding pathology at the L4-L5 and L5-S1 levels.

Materials And Methods: This retrospective study includes patients (n = 74) who had a 3-view radiographic exam of the lumbar spine, as well as a CT or MRI within six months.

A Newer Way of Determining LIV in AIS Patients: Rotation of the Touched Vertebrae.

Study Design: A retrospective review.

Objective: The objective of this study was to determine whether fusing to touched vertebra (TV) on prone x-rays (XRs) with minimal rotation (Gd 0/1) allow for shorter fusion with optimal correction.

Summary Of Background: Previous studies have shown risk of "adding on" when TV is not selected as lowest instrumented vertebra (LIV).

Percutaneous Screw Stabilization of Non-Periacetabular Pelvic Lesions Caused by Metastatic Cancer and Multiple Myeloma.

Background: The pelvis is one of the most common locations for metastatic bone disease. While many of the publications that describe surgical treatments focus on periacetabular lesions (Enneking zone II), there is a lack of investigation into lesions in the non-periacetabular areas (zones I, III, and IV). We recently described a minimally invasive percutaneous screw application for metastatic zone-II lesions with excellent results.

Ambulatory Neuromuscular Scoliosis Patients Have Superior Perioperative Results Than Nonambulatory Neuromuscular Scoliosis Patients and Can Approach Adolescent Idiopathic Scoliosis Outcomes After Posterior Spinal Fusion.

Study Design: Retrospective cohort study.

Objective: This study aims to identify differences in perioperative outcomes between ambulatory patients with neuromuscular scoliosis (ANMS) and adolescent idiopathic scoliosis (AIS) following spinal fusion.

Summary Of Background Data: NMS patients have severe curves with more comorbidities and procedural complexity.

A dual-team approach benefits standard-volume surgeons, but has minimal impact on outcomes for a high-volume surgeon in AIS patients.

Study Design: Retrospective chart review of prospectively collected data.

Objective: This study seeks to evaluate the effect of number of surgeons, surgeon experience, and surgeon volume on AIS surgery. Recent literature suggests that utilizing two surgeons for spine deformity correction surgery can improve perioperative outcomes.

Extending international toxicity testing guidance to middle eastern test species.

The Arabian Gulf is a dynamic environment with unique habitats located in the Middle East. The inhabitants of this ecosystem have historically been understudied and a lack of reliable toxicity data exists to benchmark their sensitivities. Current international testing guidelines (i.

End Vertebra Versus Apical Vertebra: Where Are We More Likely to Misplace in Spine Deformity?

Background Data: Pedicle screws placement remains technically demanding. The thoracic curve apex is considerably difficult due to its unique morphology and severe rotation. In comparison the upper end vertebrae have smaller pedicles and limited soft tissue exposure.

The Screw-Aorta Dilemma: Changing Patient Position in Computed Tomography Scan Is Critical in Documenting Aortic Mobility.

Study Design: Retrospective chart review.

Objective: To determine if obtaining a prone computed tomography (CT)-scan can better delineate a questionable screw-aorta relationship.

Summary Of Background Data: Pedicle screw misplacement rate is reported between 6% and 15%.

A Unique Case Of Tenofovir-Induced DRESS Syndrome Associated With Raynaud's Of The Tongue.

Drug reaction with eosinophilia and systemic symptoms (DRESS) is a potentially fatal severe adverse reaction to medications. Numerous drugs have been implicated, with carbamazepine and allopurinol being the most common. Tenofovir-induced DRESS is extremely rare.

A Study of Critical Events That Lead to Spinal Cord Injury and the Importance of Rapid Reversal of Surgical Steps in Improving Neurological Outcomes: A Porcine Model.

Study Design: Porcine model.

Objective: To quantify critical vascular and mechanical events that occur before and during an evolving spinal cord injury.

Summary Of Background Data: Spinal cord injuries are one of the most devastating complications in spine surgery.

Design and Validation of a Peer-Teacher-Based Musculoskeletal Ultrasound Curriculum.

Rationale And Objectives: To design and validate a peer-teacher based musculoskeletal ultrasound curriculum for radiology residents.

Materials And Methods: A musculoskeletal ultrasound curriculum with hands-on scanning workshops was designed for radiology residents. Prior to the workshops, several residents received 3 hours of hands-on training in ultrasound scanning technique which was overseen by an attending musculoskeletal radiologist; these "peer teachers" then led small-group hands-on scanning during the workshops.

Characterization and Surgical Management of Metastatic Disease of the Tibia.

Osseous metastases are common in advanced cancer stages. The tibia is the appendicular skeleton bone affected third most often. However, tibial metastases are not well described.

Low-Dose Radiation 3D Intraoperative Imaging: How Low Can We Go? An O-Arm, CT Scan, Cadaveric Study.

Unlabelled: MINI: The objective of this study was to evaluate the accuracy and reliability of pedicle screw placement using O-Arm at dosages below the manufactured recommended dose. O-Arm at reduced dose showed a 90% accuracy when compared with computed tomography; however, about 30% medial breaches were misclassified.

Study Design: Cadaveric study.

Pedicle Screw Safety: How Much Anterior Breach Is Safe?: A Cadaveric and CT-Based Study.

Unlabelled: MINI: The objective of this study was to determine the safety limits of anterior/anterolateral pedicle screw breaches. Through clinical and cadaveric study, it appears that less than 4 mm of breach has a significantly lower likelihood of impingement on vital structures (P < 0.001).

Can Postoperative Radiographs Accurately Identify Screw Misplacements?

Study Design: Retrospective case series.

Objective: The objective of this study was to determine the safety of postoperative radiographs to assess screw placement.

Summary Of Background Data: Previously defined criteria are frequently employed to determine pedicle screw placement on intraoperative supine radiographs.

Systems biology combining human- and animal-data miRNA and mRNA data identifies new targets in ureteropelvic junction obstruction.

Background: Although renal fibrosis and inflammation have shown to be involved in the pathophysiology of obstructive nephropathies, molecular mechanisms underlying evolution of these processes remain undetermined. In an attempt towards improved understanding of obstructive nephropathy and improved translatability of the results to clinical practice we have developed a systems biology approach combining omics data of both human and mouse obstructive nephropathy.

Results: We have studied in parallel the urinary miRNome of infants with ureteropelvic junction obstruction and the kidney tissue miRNome and transcriptome of the corresponding neonatal partial unilateral ureteral obstruction (UUO) mouse model.

MRIs Are Less Accurate Tools for the Most Critically Worrisome Pedicles Compared to CT Scans.

Study Design: Retrospective review of magnetic resonance imaging (MRI) and computed tomographic (CT) scan imaging modalities.

Objective: To determine MRI's capability of identifying pedicle morphology.

Summary Of Background Data: Understanding pedicle morphology is important for accurate placement of pedicle screws.

Fluoroscopically guided retrocalcaneal bursa steroid injection: description of the technique and pilot study of short-term patient outcomes.

Objective: To describe a lateral fluoroscopically guided retrocalcaneal bursa injection technique, report patient outcomes at 1-4 weeks after steroid/anesthetic retrocalcaneal bursal therapeutic injection, and correlate pre-injection diagnostic heel ultrasound variables with improvement in patient pain scores.

Materials And Methods: After IRB approval, fluoroscopically guided therapeutic retrocalcaneal bursa injections performed using a lateral approach were retrospectively reviewed. Pre-injection heel ultrasound results and pre- and post-injection patient VAS pain scores (scale 0-10) were recorded.

Survey of current trends in postgraduate musculoskeletal ultrasound education in the United States.

Objective: To determine current trends in postgraduate musculoskeletal ultrasound education across various medical specialties in the United States.

Materials And Methods: A survey regarding musculoskeletal ultrasound education was sent to all program directors for diagnostic radiology and physical medicine rehabilitation residency programs, as well as adult rheumatology and sports medicine fellowship programs in the United States. The survey, sent in July 2015, queried the presence of formal musculoskeletal ultrasound training, the components of such training and case volume for trainees.

Triggered EMG Potentials in Determining Neuroanatomical Safe Zone for Transpsoas Lumbar Approach: Are They Reliable?

Study Design: In vivo analysis in swine model.

Objective: The purpose of this study was to determine the accuracy of triggered EMG (t-EMG) and its reliability in lateral lumbar interbody fusions surgery. We also aim to document changes in psoas muscle produced during the approach.

Are We Underestimating the Significance of Pedicle Screw Misplacement?

Study Design: A retrospective review of charts, x-rays (XRs) and computed tomography (CT) scans was performed.

Objective: To evaluate the accuracy of pedicle screw placement using a novel classification system to determine potentially significant screw misplacement.

Summary Of Background Data: The accuracy rate of pedicle screw (PS) placement varies from 85% to 95% in the literature.