Reduction and ring fixation of instable C1 fractures with monoaxial pedicle screws.

INTRODUCTION: Ring fixation of C1 can be performed using pedicle screws and a rod in case of unstable Jefferson or lateral mass fractures of C1. MATERIALS AND METHODS: In a case series of three patients, we stabilized C1 fractures surgically using a modified technique of C1 ring fixation by using monoaxial instead of polyaxial screws. Functional outcome and pain was recorded postoperatively. RESULTS: In this very small case series, we observed good results concerning pain and functional outcome. All fractures were bony healed within 13 weeks. In one case, a screw penetrated the spinal canal and had to be repositioned. A mild irritation of C2 nerve root occurred in two cases postoperatively. CONCLUSION: C1 Ring fusion with monoaxial screws provides a good ability to reduce the fracture indirectly by the screws and the rod itself.

Balloon kyphoplasty and percutaneous fixation of lumbar fractures in pediatric patients.

PURPOSE: Type A fractures of the spine requiring operative stabilization are rare injuries in the pediatric population. Current reports have demonstrated the safety of the combination of balloon kyphoplasty and minimal invasive management of thoraco-lumbar fractures in adults. There is no information about the efficacy of this approach in managing pediatric vertebral fractures. METHODS: The aim of the present study was to report the outcome of a small series of children with A fractures of the lumbar spine treated with the combination of the abovementioned techniques. RESULTS: Three male patients without neurological deficits aged 11, 12 and 14 years were treated with fractures located at L1, L1/L2 and L2/L3, respectively. In total, six kyphoplasties were performed (monolateral in 4 vertebrae, bilateral in one vertebra). Neither cases of cement leakage nor intra- or postoperative complications were noted. Minimally invasive kyphoplasty and stabilization led to a significant improvement of the sagittal index of all five treated vertebrae which could be maintained at follow-up (14, 19 and 20 months postoperatively). CONCLUSION: This study is the first one to present an excellent outcome of children with type A fractures treated with a combination of balloon kyphoplasty and percutaneous stabilization.

Clinical Performance and Safety of 108 SpineJack Implantations: 1-Year Results of a Prospective Multicentre Single-Arm Registry Study.

This prospective, consecutive, multicentre observational registry aimed to confirm the safety and clinical performance of the SpineJack system for the treatment of vertebral compression fractures (VCF) of traumatic origin. We enrolled 103 patients (median age: 61.6 years) with 108 VCF due to trauma, or traumatic VCF with associated osteoporosis. Primary outcome was back pain intensity (VAS). Secondary outcomes were Oswestry Disability Index (ODI), EuroQol-VAS, and analgesic consumption. 48 hours after surgery, a median relative decrease in pain intensity of 81.5% was observed associated with a significant reduction in analgesic intake. Improvements in disability (91.3% decrease in ODI score) and in quality of life (increase 21.1% of EQ-VAS score) were obtained 3 months after surgery. All results were maintained at 12 months. A reduction in the kyphotic angulation was observed postoperatively (-5.4 ± 6.3°; p < 0.001), remained at 12 months (-4.4 ± 6.0°, p = 0.002). No adverse events were implant-related and none required device removal. Three patients (2.9%) experienced procedure-related complications. The overall adjacent fracture rate up to 1 year after surgery was 2.9%. The SpineJack procedure is an effective, low-risk procedure for patients with traumatic VCF allowing a fast and sustained improvement in quality of life over 1 year after surgery.

Demineralization after balloon kyphoplasty with calcium phosphate cement: a histological evaluation in ten patients.

PURPOSE: Balloon kyphoplasty (BKP) with calcium phosphate cement (CPC) is increasingly being used for spinal surgery in younger patients. In routinely performed follow-up CT scans we observed considerable areas of demineralization in CPC processed vertebrae in several patients. To rule out infections or inflammations histological examinations were planned for these patients. METHODS: Ten patients (23-54 years; six men) with significant demineralization areas in CT scans after CPC balloon kyphoplasty were selected. Punch biopsies from these areas were taken in local anesthesia using a biopsy needle. One half of the specimen was decalcified and embedded in paraffin, and sections were examined histologically using hematoxylin and eosin, Van Gieson, and trichrome staining. The second half of the specimen was cast directly in methyl methacrylate and sections were examined by Paragon and von Kossa/Safranin staining. Stained slides were viewed under light microscopy. RESULTS: Bone-punch specimens were taken at 17.5 months (mean) after BKP with CPC. In most cases, the cement was well surrounded by newly formed lamellar bone with very tight connections between the cement and new bone. Unmineralized areas were observed sporadically at the cement surface and adjacent to the implant. There were no pronounced signs of inflammation or osteolysis of adjacent bone. No complications were observed during or following patients' biopsy procedures. CONCLUSIONS: CPC demonstrated good biocompatibility and osseointegration in clinical use, with no evidence of inflammation or osteonecrosis. Demineralized areas in CT scans could be a result of remodeling of the cancellous bone in vertebral bodies.

Outcome of type C (AO) distal humeral fractures: follow-up of 22 patients with bicolumnar plating osteosynthesis.

BACKGROUND: In the last 40 years, 220 patients with type C distal humeral fractures (AO13-C1-3) were treated at our hospital operatively. Aim of this study is to present results of patients treated by dual plating osteosynthesis in the last decade and to compare them with our previous series (A-C). MATERIALS AND METHODS: From 1999 to 2008, 48 distal humeral fractures were treated operatively by perpendicular dual plating osteosynthesis. Twenty-two patients (mean age 43.5 years) were available for follow-up. These patients were allocated on the basis of retrospective evaluation, exploration of their medical history, x-rays based on the AO-classification, and functional outcome using CASSEBAUM, JUPITER, and Quick-DASH (Disabilities of the Arm, Shoulder and Hand) scores. RESULTS: The dominant side was affecting in 42.9%. Transolecranon approach was chosen in 86.4%. Good/excellent results were found in 86.4% (CASSEBAUM) and 81.8% (JUPITER). Mean Quick-DASH was 36.1 ± 28.4. Mean range of motion (ROM) was 0/10.9°/128.2°. Mean hospitalization time was 12.9 days, 22.7% were polytrauma patients. Early mobilization was possible in 81.8%. CONCLUSION: Early mobilization was possible in the majority of cases, which may be a prerequisite for satisfying functional results. Using new locking plates, early mobilization could be maintained even in an aging population.

Penetrating neck trauma causing tracheal rupture, spinal cord injury, and massive pneumocephalus.

We describe a case in which tracheal, esophageal, and spinal cord injuries associated with massive pneumocephalus were caused by a flying chainsaw segment. To our knowledge, this is the first such case reported in the medical literature. The management challenges inherent in this exceedingly rare combination of injuries are discussed, and a novel theory explaining the possible pathophysiological mechanism that led to pneumocephalus in our patient is put forth.

Transdiaphragmatic repositioning of the heart in the setting of emergency laparotomy after blunt trauma.

Cardiac luxation after blunt trauma is a rare condition that carries a high mortality rate. We report a case of a left pericardial rupture with partial dislocation of the heart into the left pleural cavity and cardiac strangulation in a polytraumatized patient after a severe motor vehicle accident. This case is of special interest because the patient not only had cardiovascular compromise but was also actually in cardiac arrest and being resuscitated when an emergency repositioning of the heart through the diaphragm in the setting of damage control laparotomy restored circulation. This report stresses the need for a high index of suspicion for accurate early diagnosis of pericardial rupture.

Cricothyroidotomy on the scene in a patient with severe facial trauma and difficult neck anatomy.

We present a case of a patient with severe facial trauma who was treated at the scene by a physician-staffed trauma life support team. Because of massive oropharyngeal bleeding in addition to a difficult neck anatomy in a very obese patient, a cannot-intubate, cannot-ventilate situation occurred. Control of the airway could finally be achieved by surgical cricothyroidotomy. The current literature concerning emergency cricothyroidotomy is discussed.

Successful prolonged resuscitation involving the use of tenecteplase without neurological sequelae.

Prehospital cardiac arrest is associated with a very poor prognosis. We report a case of complete neurological recovery after prolonged resuscitation involving the use of tenecteplase in a patient with undifferentiated cardiac arrest with a return of spontaneous circulation after 1 hour of resuscitation, where basic life support was commenced immediately by a bystanding family member. Factors associated with an increased chance of survival from out-of-hospital cardiac arrest are discussed as well as the role of thrombolytics in cardiopulmonary resuscitation.