A Case of Acute Plastic Deformation of the Forearm in a Medieval Hispano-Mudejar Skeleton (13-14th Centuries AD).

INTRODUCTION: Acute plastic deformation refers to a traumatic bending or bowing without a detectable cortical defect. CASE PRESENTATION AND DISCUSSION: We describe a rare case from an individual that was exhumed from the Hispano-Mudejar necropolis in Uceda (Guadalajara, Spain) dated between the 13th and 14th centuries AD. The case corresponds to an adult woman, with a bowing involvement of the left ulna and radius. After making the differential diagnosis with various pathologies likely to present with this alteration, we reached the diagnosis of acute plastic deformation of the forearm through external and radiological examination and comparison with the healthy contralateral forearm. CONCLUSIONS: Acute plastic deformation is a rare traumatic injury, not described until the last century and only rarely described in palaeopathological contexts. We contribute a new case, the first being sufficiently documented, contributing to the knowledge and diagnosis of this type of trauma in the ancient bone, while deepening the knowledge of the living conditions of the medieval Mudejar population of Uceda.

Spinal health in 40 patients in the initial stage of laboural life. Morfogeometric, biological and environmental study.

INTRODUCTION: Assuming that spinal shape is a genetic expression, its analysis and acquired factors could assess their respective contribution to early spine deterioration. MATERIAL AND METHODS: A geometric morphometric analysis was retrospectively performed on sagittal lumbar MRI of young patients with back pain to identify lumbar spine shape changes. Using Geometric Morphometrics, findings were analyzed with anthropometric, radiological, and clinical variables. RESULTS: 80 cases under 26 years of age were collected, 55 men (mean age 22.81) and 25 women (mean age 23.24). MRI abnormalities were reported in 57.5%: single altered disc (N=17), root compromises (N=8), and transition anomalies (35%).In the non-normal MRI subgroup, shape variation included: increased lordosis, enlarged vertebral body, canal stenosis, and lumbarization of S1. In non-Spanish origin patients, lumbar straightening and segmental deformities were prevalent. Morphometrics findings showed that lumbosacral transition anomalies are frequently underreported. CONCLUSIONS: Genetic factors could be the main determinants of abnormality in MRIs under 26 years. The primary markers are transitional abnormalities, segmental deformities, and canal stenosis. In foreign populations, shape changes could suggest spine overload at an early age.

Litigability and defensibility in neurology and neurosurgery. A "therapeutic" model for handling claims for malpractice care.

Despite its indisputable importance, there are not many official data on claims for malpractice at the national level in Spain, mainly due to transfers from Health to the Autonomous Communities. This lack of unified information, together with other variables related to modern Healthcare Medicine (type of healthcare system, ethical aspects, consent, patients' rights, new technologies, etc.), complicates the healthcare professional's response to claims, and could not guarantee adequate protection of this against possible liability. This article analyzes the current situation in Spain and emphasizes aspects such as defensibility and liability in malpractice claims, taking as a model the Neurosurgery Specialty, one of the most prone to this type of situation. Prevention and action guidelines are offered, through a model aimed at reinforcing defensibility and reducing liability. This approach, which we call a "therapeutic model", considers the problem analogously to a disease, providing the basis for its prevention and management. We believe that this approach can be useful both to the Neurosurgeon and to any healthcare provider at a time, such as today, when there is some confusion on these issues and some reluctance of insurance companies to provide coverage in some cases.

Delay in diagnosis of thoracolumbar fractures.

The time interval between the date of trauma and the diagnosis of vertebral column fractures hinders management and increases liability. We have examined the features and implications of this delay. 585 consecutive thoracolumbar fractures (2005-2016), were considered; 382 (65.30%) were males and 203 (34.70%) females. Mean age was 51 yr. Fall from a height (187; 31.97%), simple fall (147; 25.13%) and road accidents (111; 18.97%) were the most frequent causes of trauma. Physical exertion caused 8.38% (N=49). 142 patients (24.27%) were not diagnosed on the injury day (mean = 3.2 days). Delay was longer in females (mean = 5.5 vs. 2.7 days) and shorter in falls from a height (mean = 2.3) or road accidents (2.8). Mean age of diagnosed on the injury day differed from those diagnosed in the first month (49.2 vs 60.1). Plain X-ray signs were found in 7 misdiagnosed cases (46.6%). Delay was more frequent in low mineralization cases. Diagnostic delay of spine fractures is frequent. Some risk profiles can help to reduce it. Careful emergency X-ray examination is encouraged, as well as early magnetic resonance imaging in risk profiles.

Are Modic Changes Able to Help Us in Our Clinical Practice? A Study of the Modic Changes in Young Adults During Working Age.

STUDY DESIGN: Modic changes [vertebral endplate spinal changes (VESC)] have been related to degenerative disk disease, and in past decades it was thought that their presence justified the surgical treatment, in particular spinal fusion. OBJECTIVE: The aim of the present study is to investigate its prevalence and features in a population of young workers suffering from low back pain, and explore the eventual relationship with the treatment applied in each case. BACKGROUND DATA: We conducted a retrospectively review of 450 magnetic resonance images from our hospital, in patients with low back pain or sciatica and age below 40. MATERIALS AND METHODS: Age, sex, symptoms predominance, concurrence with other spine disease, VESC type, evolution, level/s of involvement and placement, affected disk location and extent of the disease, disk height, and status of the endplate were recorded. The applied treatment was divided in groups according to the degree of invasiveness of the procedure. RESULTS: Prevalence of VESC was 13.05% predominant in patients over 30 years, and 100% associated to disk degenerative changes. Most frequent features were: type I (54%), lower lumbar region (98%), along with a decreased disk height (68%), and distortion of the disk endplates (98%, P<0.01). The patients with VESC presented a favorable outcome with conservative treatment, but were more frequently associated with invasive treatment, compared with non-VESC patients (P<0.024). CONCLUSIONS: VESC prevalence increases with age, underlying the degenerative causative etiology. Surgical indication should not be stated on the basis of the VESC findings alone, the main factor for indicating surgery depends more on other associated degenerative spinal changes.

[Interspinous spacers and disc herniation. Geomorphometric and clinical study of 71 cases treated by L4-L5 microdiscectomy associated to spacer placement]. / Dispositivos interespinosos y hernia discal. Estudio morfogeométrico y clínico de 71 casos tratados con microdiscectomía L4-L5 asociada a colocación de espaciador.

OBJECTIVE: A controversial indication of interspinous spacers is their use as a complement to discectomy. At the present time, there is no solid clinical evidence of effectiveness of that association, which might result from variability in spacer positioning, restricting its correct biomechanical actions. In this study our goal was to identify and analyse the variability in the placement of an interspinous spacer, and to investigate its relationship with the clinical results. MATERIALS AND METHODS: We performed a retrospective study on X-ray films from 71 patients suffering from disc herniation in L4-L5 who underwent surgery in our hospital, consisting of: microdiscectomy and biomed interspinous spacer implantation. The geomorphometric techniques used to analyse the data were procrustes superimposition and principal components analysis. We compared the clinical results (using the Herron and Turner scale), segmental lordosis and surgical distraction with the geomorphometric parameters. RESULTS: Significant morphological variability was found in the implant position showing cephalo-caudal translation and clockwise-counterclockwise rotations. This variability did not correlate with clinical results. A relationship with anatomical features (lordosis) and additional surgical distraction was identified. A different morphology of implant-segment configuration was identified in cases with recurrence of disc herniation. CONCLUSIONS: Geometric morphometrics allowed identifying high variability in the final placement of interspinous spacers. Nevertheless, it seems not to be related to the clinical outcome, depending rather on the degree of lordosis and distraction. Some differences in segment-implant morphology were identified in cases with recurrences. To assess the effectiveness of spacers, larger studies including morphological and clinical variables are required.

Simulation in spinal diseases.

Simulation is frequent in spinal disease, resulting in problems for specialists like Orthopedic Surgeons, Neurosurgeons, Reumathologists, etc. Simulation requires demonstration of the intentional production of false or exaggerated symptoms following an external incentive. The clinician has difficulties in demonstrating these criteria, resulting in misdiagnosis of simulation or misinterpretation of the normal patient as a simulator, with the possibility of iatrogenic distress and litigation. We review simulation-related problems in spine, proposing a terminological, as well as a diagnostic strategy including clinical and complementary diagnosis, as a way to avoid misinterpretation and minimize the iatrogenic distress and liability Based on the clinical-Forensic author's expertise, the literature is analyzed and the terminology readdressed to develop new terms (inconsistences, incongruences, discrepancies and contradictions). Clinical semiology and complementary test are adapted to the new scenario. Diagnostic strategy relies on anamnesis, clinical and complementary tests, adapting them to a uniform terminology with clear meaning of signs and symptoms.

Estudio preliminar de casos y controles de la morfología axial L4-L5 en la hernia de disco / Preliminary case-control study of axial L4- L5 morphology in disc herniation

Una de las cuestiones discutidas es el papel de los factores genéticos y adquiridos en la etiologia de la hernia de disco. Como expresión genómica, el estudio de la morfología podría clarificar dicho papel. Las recientes técnicas de morfometría geométrica (análisis Procrustes generalizado y estudio de componentes principales, entre otras) permiten analizar la forma desde un enfoque no euclidiano, brindando una nueva via de investigación que puede ser aplicada en el raquis. En el presente trabajo empleamos técnicas de morfometría geométrica para analizar la forma axial L4-L5 en pacientes con hernia de disco (n = 69) y controles sanos (n = 87). Se observó una variabilidad de forma a modo de expansión-contracción coronal, a partir del centro del canal medular. Se hallaron diferencias morfológicas entre los controles y las hernias: potenciales factores de riesgo que afectaron principalmente a las láminas y la orientación interapofisaria, condicionando cambios en la morfología del canal. Los resultados apoyan un origen genético de la variabilidad morfológica, con un importante dimorfismo sexual. No obstante, el cambio más relevante para la discriminación la presencia y la ausencia de hernia fue el tamaño del disco, que varió significativamente con el peso. Nuestros hallazgos contribuyen a mejorar el conocimiento morfológico espinal, y a entender el papel de la forma en la hernia de disco, como expresión de la genética, frente a otros factores etiológicos adquiridos. Las técnicas de morfometría geométrica ofrecen una prometedora vía para la investigación de la columna, recomendándose un mayor uso dada la escasez de publicaciones al respecto...

[Image analysis and processing. Fundaments and applications in neurology and neurosurgery]. / Análisis y proceso de imagen. Fundamentos y aplicaciones en neurología y neurocirugía.

In recent years, image techniques have transformed the diagnosis in Medicine. Nevertheless, they are, by now, far from a widespread clinic and surgical use. Beyond the simple picture inspection, DICOM digital files can be explored by using image analysis/processing techniques in a better way. In practice, clinicians and surgeons usually are limited to 'see' pictures delivered by Radiology. However, image analysis/processing techniques allow the 'client' (neurologist or neuro-surgeon) to accomplish interactive image visualizations, multiplanar or 3D rendering, measurements, pathway visualizations, etc. All these tasks, offer a great advantage in diagnosis, surgical planning, teaching and investigation. This paper revise the fundaments of image analysis techniques in order to emphasize their utility, and to widespread its utilization not in the server (Radiological Department) but, principally, in the client side. Some examples of cranio-spinal pathologies are presented aiming to these objectives.