Results of partial resurfacing of humeral head in patients with avascular necrosis

Publication date: January–February 2019Source: Revista Española de Cirugía Ortopédica y Traumatología (English Edition), Volume 63, Issue 1Author(s): M. Ranalletta, A. Bertona, I. Tanoira, L.A. Rossi, S. Bongiovanni, G.D. MaignónAbstractObjectiveThe aim of this study was to report the short-term results and complications of partial humeral head resurfacing (HemiCup®) in patients treated by avascular necrosis.Material and methodsBetween 2010 and 2014, 9 patients who underwent partial resurfacing of humeral head were evaluated. All the patients were treated by avascular necrosis. The mean follow-up was 44 months (minimum 24 months). The average age was 47 years (range 32–57 years). The patients were evaluated clinically and radiologically. Complications were reported.ResultsThe patients had a significant improvement in functional scores and mobility between the pre-operative and last follow-up control. The Constant score improved from 35 to 79 points (p 
Source: Revista Espanola de Cirugia Ortopedica y Traumatologia - Category: Orthopaedics Source Type: research

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Publication date: Available online 22 January 2019Source: NeuroImage: ClinicalAuthor(s): Joey A. Contreras, Andrea Avena-Koenigsberger, Shannon L. Risacher, John D. West, Eileen Tallman, Brenna C. McDonald, Martin R. Farlow, Liana G. Apostolova, Joaquin Goñi, Mario Dzemidzic, Yu-Chien Wu, Daniel Kessler, Lucas Jeub, Santo Fortunato, Andrew J. Saykin, Olaf SpornsAbstractAlzheimer's disease is considered a disconnection syndrome, motivating the use of brain network measures to detect changes in whole-brain resting state functional connectivity (FC). We investigated changes in FC within and among resting state networks...
Source: NeuroImage: Clinical - Category: Radiology Source Type: research
Source: Skeletal Radiology - Category: Radiology Source Type: research
Source: Skeletal Radiology - Category: Radiology Source Type: research
Source: Skeletal Radiology - Category: Radiology Source Type: research
AbstractObjectiveTo analyze the impact of pelvic computed tomography (CT) technique optimization on estimated dose and subjective and objective image quality.Materials and methodsAn institutional review board (IRB)-approved retrospective records review was performed with waived informed consent. Five CT scanners (various manufacturers/models) were standardized to match the lowest dose profile on campus via subjective assessment of clinical images by experienced musculoskeletal radiologists. The lowest dose profile had previously been established through image assessment by experienced musculoskeletal radiologists after a d...
Source: Skeletal Radiology - Category: Radiology Source Type: research
ConclusionsThis study demonstrates high inter-observer correlation of PTI on MRI and high test –retest reliability indicating unconscious quadriceps contraction does not change the index sufficiently. Knee flexion significantly alters PTI, increased patellotrochlear engagement with flexion increases the index. We propose use of the formula cPTI = PTI -1.3a to correct the index to 0 degr ee knee flexion in clinical practice.
Source: Skeletal Radiology - Category: Radiology Source Type: research
Source: Skeletal Radiology - Category: Radiology Source Type: research
This study retrospectively evaluated the added value of MRI over X-ray in guiding the extent of amputation in a cohort of patients with surgically treated, pathologically proven osteomyelitis.Materials and methodsA database search revealed 32 cases of pathology-proven diabetic forefoot osteomyelitis between 2006 and 2016, in which X-ray, MRI, and surgery occurred within 30  days. Data collection included extent of osteomyelitis reported on imaging and extent of subsequent amputation using a point system. Added value of MRI over X-ray in guiding surgical resection was stated if the X-ray was negative, MRI was positive,...
Source: Skeletal Radiology - Category: Radiology Source Type: research
Conclusion3D-MR imaging can be used to accurately diagnose and quantify the typical osseous pathological condition in femoroacetabular impingement and has the potential to eliminate the need for 3D-CT imaging and its associated radiation exposure, and the cost for this predominantly young group of patients.
Source: Skeletal Radiology - Category: Radiology Source Type: research
ConclusionsPlexiform fibrohistiocytic tumor often manifests as a plaque-like or infiltrative process, sometimes without a round or oval mass, most commonly in the subcutaneous tissues of the upper extremity or head and neck region. Residual tumor is often present after initial surgery, and  may be indistinguishable from postoperative changes.
Source: Skeletal Radiology - Category: Radiology Source Type: research
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