Lumbar Vertebral Fracture Through a Pre-Existing Schmorl's Node Mimicking Histopathologically a Low-Grade Chondrosarcoma.

The aim of this paper is to present a unique, to the best of our knowledge, case of a patient with a fracture of the first lumbar vertebra (L1), which occurred through a pre-existing Schmorl's node (SN), with histopathological characteristics mimicking a low-grade chondrosarcoma that initially led to a false diagnosis. A 54-year-old woman tripped and fell to the ground, sustaining a fracture of the L1 vertebral body. She was treated conservatively with gradual mobilization using a thoracolumbar brace for six weeks.

New technique of En bloc vertebral resection in the thoracolumbar region assisted by retroperitoneal laparoscopy in a single prone position: first results.

Purpose: To describe the technique and review the oncological and surgical results of the En Bloc resection assisted by retroperitoneal laparoscopy in a single prone position for tumors in the thoracolumbar region.

Methods: Monocentric retrospective case study. Procedure was performed in a single prone position by a dual team of spine and thoracovascular surgeons.

Understanding a mass in the paraspinal region: an anatomical approach.

The paraspinal region encompasses all tissues around the spine. The regional anatomy is complex and includes the paraspinal muscles, spinal nerves, sympathetic chains, Batson's venous plexus and a rich arterial network. A wide variety of pathologies can occur in the paraspinal region, originating either from paraspinal soft tissues or the vertebral column.

En bloc video-assisted thoracoscopic vertebrectomy for a spinal tumour.

Complex thoracic vertebral tumours remain a surgical challenge in terms of the surgical approach to ensure a complete en bloc vertebrectomy with healthy margins, along with optimal control of the thoracic structures next to the spine. A combined three-port left thoracoscopic posterior approach, with the patient placed in a prone position with selective double-lumen intubation, can be performed in patients with spinal tumours involving soft tissues, for direct access to the thoracic structures, even with T10-T11 vertebral tumours next to the diaphragm. The video thoracoscopic technique with an enhanced view of the posterior mediastinum permits progressive dissection of the descending aorta, oesophagus, azygos vein, thoracic ductus and diaphragmatic pillars from the vertebral body that is involved by the spinal tumour.

Deconstructing forearm casting task by videos with step-by-step simulation teaching improved performance of medical students: is making working student's memory work better similar to a process of artificial intelligence or just an improvement of the prefrontal cortex homunculus?

Purpose: To compare two teaching methods of a forearm cast in medical students through simulation, the traditional method (Trad) based on a continuous demonstration of the procedure and the task deconstruction method (Decon) with the procedure fragmenting into its constituent parts using videos.

Methods: During simulation training of the below elbow casting technique, 64 medical students were randomized in two groups. Trad group demonstrated the entire procedure without pausing.

Intercalary allograft reconstruction following femoral tumour resection: mid- and long-term results and benefits of adding a vascularised fibula autograft.

Purpose: Bone healing in femoral reconstructions using intercalary allografts can be compromised in a tumour context. There is also a high revision rate for non-union, infection, and fractures in this context. The advantages and disadvantages of an associated vascularised fibula graft (VFG) are still a matter of debate.

Procedural simulation training in orthopaedics and traumatology: Nationwide survey among surgeon educators and residents in France.

Background: Simulation is among the tools used in France to train residents specialising in orthopaedic and trauma surgery (OTS). However, implementing simulation-based training (SBT) is complex and poorly reported. The objective of this study was to describe the use of simulation for OTS training in France.

Characteristics, survivals and risk factors of surgical site infections after En Bloc sacrectomy for primary malignant sacral tumors at a single center.

Introduction: For prolonged survival, primary malignant sacral tumors (PMST) are treated by En Bloc sacrectomy. Few studies analyzed specifically the surgical site infections (SSI) for this condition and whether they impact on the patients' survivals.

Objectives: The objectives were to (1) describe their characteristics; (2) compare the survivals of infected and non-infected patients; (3) identify patients- and surgery-related risk factors.

Management of chordoma of the sacrum and mobile spine.

Chordoma is a very rare, poorly known malignancy, with slow progression, mainly located in the sacrum and spine. All age groups may be affected, with a diagnostic peak in the 5th decade of life. Clinical diagnosis is often late.

Long-Term Results of Anterior-Only Lumbar Interbody Fusions in Rheumatoid Arthritis Patients: Comparative Retrospective Cohort Study.

Objective: Rheumatoid arthritis (RA) is a risk factor of lumbar spine surgical failure. The interest of anterior lumbar fusion in this context remains unknown. This retrospective study aimed to compare the outcome of anterior-only fusions between RA patients and non-RA (NRA) patients to treat lumbar spine degenerative disorders.

Video-Assisted Thoracoscopic En Bloc Vertebrectomy for Spine Tumors: Technique and Outcomes in a Series of 33 Patients.

Background: In en bloc vertebrectomy, the posterior approach is associated with limited access to anterior structures (vertebral body, esophagus, aorta, azygos vein). Video-assisted thoracoscopic surgery (VATS) might prove to be advantageous during thoracic en bloc vertebrectomy by allowing a combined anterior-posterior access in the prone position. We describe the technique and review the outcomes of 33 cases of video-assisted thoracoscopic en bloc vertebrectomy.

Bilateral femoral shaft fracture in polytrauma patients: Can intramedullary nailing be done on an emergency basis?

Introduction: Whether damage control orthopedics (DCO) or early total care (ETC) is the best way to treat polytrauma patients who have suffered a bilateral femoral shaft fracture remains unanswered. The aim of this study was to evaluate the morbidity of bilateral femur fractures treated by simultaneous intramedullary (IM) nailing according to ETC principles.

Materials And Methods: This retrospective single-centre study included all polytrauma patients who had suffered a femoral shaft fracture and were treated at our level I trauma centre.

Long-term outcomes of non-invasive expandable endoprostheses for primary malignant tumors around the knee in skeletally-immature patients.

Introduction: Expandable endoprostheses are used to restore limb function and compensate for the sacrifice physis involved in carcinologic resection. Long-term outcomes of the last generation of knee "non-invasive" expandable endoprostheses are required. Objectives were to report on oncologic results of bone sarcoma resection around the knee with expandable endoprosthesis reconstruction and to compare the surgical outcomes of the "non-invasive" expandable endoprostheses used in our department.

Surgical management of proximal femoral metastasis: Fixation or hip replacement? A 309 case series.

Introduction: The proximal femur is the most frequent operative site for metastasis, but there is no consensus between internal fixation and hip replacement. The present multicenter retrospective observational study sought: (1) to compare early clinical results between internal fixation and hip replacement for proximal femoral metastasis (PFM), and (2) to assess events affecting survival.

Hypothesis: The study hypothesis was that internal fixation and hip replacement give comparable clinical results, operative site complications rates and survival.

Retrospective, multicenter, observational study of 112 surgically treated cases of humerus metastasis.

Introduction: The humerus is the second most common site for metastasis in the peripheral skeleton. These humeral metastases (HM) occur in the midshaft in 42% to 61% of cases and theproximal humerus in 32% to 45% of cases. They are often secondary to primary breast (17-31%), kidney (13-15%) or lung (11-24%) cancer.

Surgical treatment of peri-acetabular metastatic disease: Retrospective, multicentre study of 91 THA cases.

Introduction: The occurrence of peri-acetabular metastasis (PAM) is a turning point in the progression of cancer because the disabling pain prevents the patient from walking or makes it difficult. Recent progress in controlling cancers that spread to the bone and controlling local bone destruction justify this national study. Since the data in France is incomplete or based on small studies, we analysed a multicentre retrospective cohort of patients with PAM who underwent total hip arthroplasty (THA) to evaluate 1) the clinical and radiological outcomes and 2) the factors impacting patient survival.

Subchondral bone or intra-articular injection of bone marrow concentrate mesenchymal stem cells in bilateral knee osteoarthritis: what better postpone knee arthroplasty at fifteen years? A randomized study.

Purpose: There is an increasing number of reports on the treatment of knee osteoarthritis (OA) using mesenchymal stem cells (MSCs). However, it is not known what would better drive osteoarthritis stabilization to postpone total knee arthroplasty (TKA): targeting the synovial fluid by injection or targeting on the subchondral bone with MSCs implantation.

Methods: A prospective randomized controlled clinical trial was carried out between 2000 and 2005 in 120 knees of 60 patients with painful bilateral knee osteoarthritis with a similar osteoarthritis grade.

Outcomes of growing rods in a series of early-onset scoliosis patients with neurofibromatosis type 1.

Objective: Early-onset scoliosis (EOS) is not uncommon in patients with neurofibromatosis type 1 (NF1). Despite conservative treatment, spinal deformities progress and require early surgical intervention. To avoid potential interference with chest and trunk growth, growing rods (GRs) have been used effectively in EOS of various etiologies.