1,721,066 research outputs found
Two-stage, combined, three-level en bloc spondylectomy for a recurrent post-radiation sarcoma of the lumbar spine
No full textEn bloc or extralesional resection means resection of the tumor in one piece together with a layer of healthy tissue: the margin is either marginal or wide. The prerequisite for an en bloc or extralesional spondylectomy is a tumor involvement of no more than one side of the posterior structures, so that a corridor can be created through which the spinal cord is released. This article presents a two-stage, combined anterior and posterolateral, three-level en bloc spondylectomy, and local flap wound coverage for a patient with a recurrent post-radiation sarcoma of the lumbar spine and infected wound after intralesional treatment. The patient had radiation therapy for an L4 Hodgkin's lymphoma 5 years before the development of the post-radiation sarcoma. Two-stage, three-level en bloc spondylectomy was done through a combined anterior and posterolateral approach. The resection margins were microscopically negative. Dural tear occurred intraoperatively because of tightly adherent dense scar tissue. Two years after spondylectomy, there was no evidence of tumor or infection recurrence; however, the patient died from her lymphoma. In surgically difficult spinal resections, we recommend the two-stage, combined anterior and posterolateral approach for en bloc spondylectomy. The staged procedure may provide for reduced perioperative complications and mortality, and meticulous dissection in the irradiated area, especially if infected. The combined approach provides for easier and safer dissection of the tumor and the spine from the anterior elements under direct visual control, and wide tumor resection
Desmoplastic Fibroma of Bone: Curettage is Treatment of Choice
No full textDesmoplastic Fibroma of Bone: Curettage is Treatment of Choic
Porous tantalum implants in primary and revision tumour surgery of the pelvis and lower extremity
No full textPorous tantalum implants in primary and revision tumour surgery of the pelvis and lower extremit
Wireless resonant energy link for pulse generators implanted in the chest
Full text linkThis study investigates the feasibility of using the MedRadio band for wirelessly transmitting power to a rechargeable medical device implanted in the chest. In particular, a wireless energy link operating at 403 MHz and based on an inductive coupling between two planar resonators is considered, and its performance is assessed through simulations and experimental tests. Results show that a maximum value of the measured power transfer efficiency of ~23% is achieved. Furthermore, the possibility of using the link for recharging a lithium-ion battery of a pulse generator implanted in the chest at a depth of 5 mm is discussed, and the compliance with safety regulations is verified. Reported results demonstrate that the proposed link can be used to charge a lithium-ion battery with a capacity up to 7.2 mAh, while inducing a peak of the specific absorption rate averaged over 1 g of tissue < 1.6 W/kg
The Need for Multidisciplinarity in Modern Medicine: An Insight into Orthopaedic Infections
Full text linkAs knowledge broadens, clinical practice becomes more elaborate, resulting in a variety of subspecialties and advanced health services [...]
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Cementless acetabular fixation using modular porous tantalum implants aftre pelvic radioation therapy
No full textCementless acetabular fixation using modular porous tantalum implants aftre pelvic radioation therap
The role of the musculoskeletal tissue bank in limb salvage surgery of children: analysis of recent Rizzoli Institute experience
No full textThe role of the musculoskeletal tissue bank in limb salvage surgery of children: analysis of recent Rizzoli Institute
experienc
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