TY - JOUR A1 - Domokos, Bruno A1 - Beer, Lisa A1 - Reuther, Stefanie A1 - Raschka, Christoph A1 - Spang, Christoph T1 - Immediate effects of isolated lumbar extension resistance exercise (ILEX) on spine posture and mobility measured with the IDIAG Spinal Mouse System JF - Journal of Functional Morphology and Kinesiology N2 - Posture and mobility are important aspects for spinal health. In the context of low back pain, strategies to alter postural anomalies (e.g., hyper/hypolordosis, hyper/hypokyphosis) and mobility deficits (e.g., bending restrictions) have been of interest to researchers and clinicians. Machine-based isolated lumbar extension resistance exercise (ILEX) has been used successfully for rehabilitation of patients suffering from low back pain. The aim of this study was to analyse the immediate effects of ILEX on spinal posture and mobility. In this interventional cohort study, the posture and mobility measures of 33 healthy individuals (m = 17, f = 16; mean age 30.0 years) were taken using the surface-based Spinal Mouse system (IDIAG M360©, Fehraltdorf, Switzerland). Individuals performed one exercise set to full exhaustion with an ILEX-device (Powerspine, Wuerzburg, Germany) in a standardized setup, including uniform range of motion and time under tension. Scans were made immediately before and after the exercise. There was an immediate significant decrease in standing lumbar lordosis and thoracic kyphosis. No change could be observed in standing pelvic tilt. Mobility measures showed a significant decrease in the lumbar spine and an increase in the sacrum. The results show that ILEX alters spine posture and mobility in the short-term, which may benefit certain patient groups. KW - low back pain KW - spine KW - posture KW - mobility KW - exercise KW - ILEX KW - surface scanner Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-319334 SN - 2411-5142 VL - 8 IS - 2 ER - TY - JOUR A1 - Conrads, Nora A1 - Grunz, Jan-Peter A1 - Huflage, Henner A1 - Luetkens, Karsten Sebastian A1 - Feldle, Philipp A1 - Grunz, Katharina A1 - Köhler, Stefan A1 - Westermaier, Thomas T1 - Accuracy of pedicle screw placement using neuronavigation based on intraoperative 3D rotational fluoroscopy in the thoracic and lumbar spine JF - Archives of Orthopaedic and Trauma Surgery N2 - Introduction In spinal surgery, precise instrumentation is essential. This study aims to evaluate the accuracy of navigated, O-arm-controlled screw positioning in thoracic and lumbar spine instabilities. Materials and methods Posterior instrumentation procedures between 2010 and 2015 were retrospectively analyzed. Pedicle screws were placed using 3D rotational fluoroscopy and neuronavigation. Accuracy of screw placement was assessed using a 6-grade scoring system. In addition, screw length was analyzed in relation to the vertebral body diameter. Intra- and postoperative revision rates were recorded. Results Thoracic and lumbar spine surgery was performed in 285 patients. Of 1704 pedicle screws, 1621 (95.1%) showed excellent positioning in 3D rotational fluoroscopy imaging. The lateral rim of either pedicle or vertebral body was protruded in 25 (1.5%) and 28 screws (1.6%), while the midline of the vertebral body was crossed in 8 screws (0.5%). Furthermore, 11 screws each (0.6%) fulfilled the criteria of full lateral and medial displacement. The median relative screw length was 92.6%. Intraoperative revision resulted in excellent positioning in 58 of 71 screws. Follow-up surgery due to missed primary malposition had to be performed for two screws in the same patient. Postsurgical symptom relief was reported in 82.1% of patients, whereas neurological deterioration occurred in 8.9% of cases with neurological follow-up. Conclusions Combination of neuronavigation and 3D rotational fluoroscopy control ensures excellent accuracy in pedicle screw positioning. As misplaced screws can be detected reliably and revised intraoperatively, repeated surgery for screw malposition is rarely required. KW - pedicle screws KW - vertebral pedicles KW - fluoroscopy KW - neuronavigation KW - spine Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-324966 VL - 143 IS - 6 ER - TY - THES A1 - Fricke, Patrick T1 - Hyperextensionsverletzungen der thorakolumbalen Wirbelsäule T1 - Thoracolumbar hyperextension injuries N2 - Eine der seltensten Formen thorakolumbaler Wirbelsäulenverletzungen stellen Hyperextensionsläsionen dar. In dieser retrospektiven Studie wurden 27 Fälle thorakolumbaler Hyperextensionsverletzungen, die zwischen 1997 und 2010 in der Universitätsklinik Würzburg behandelt wurden, analysiert und die Besonderheiten dieser Verletzungen verdeutlicht. Ergebnisse: In dem untersuchten Patientenkollektiv waren zu 74 % Männer von den Hyperextensionsverletzungen betroffen. Das Durchschnittsalter aller Patienten lag bei 70,6 Jahren (25 – 92 Jahre, SD 15,8). 22 Patienten litten zum Unfallzeitpunkt an Vorerkrankungen der Wirbelsäule: in 17 Fällen (63 %) lag eine diffuse idiopathic skeletal hyperostosis (DISH) vor, bei 4 Patienten (14,8 %) ein M. Bechterew und bei einer Patientin (3,7 %) ausschließlich degenerative Veränderungen im Sinne einer Osteoporose. In 29,6 % der Fälle war ein leichtes Trauma ursächlich, bei 70,4 % führte ein hochenergetischer Unfall zu der Hyperextensionsverletzung. Bei 14 Patienten verliefen die Verletzungen der vorderen Säule transdiskal (52 %) und bei 13 transossär (48 %). Bei allen Patienten ohne Vorschäden der Wirbelsäule kam es dabei zu einer transdiskalen Läsion. 6 Patienten (22,2 %) erlitten initial durch die Hyperextensionsverletzung ein neurologisches Defizit. Alle Patienten wurden operativ mittels Implantation eines Fixateur interne von dorsal stabilisiert. Schlussfolgerung: Im Vergleich mit der Literatur zeigte sich anhand der Daten dieser Studie, dass Hyperextensionsverletzungen der thorakolumbalen Wirbelsäule mit einem höheren Risiko für neurologische Defizite einhergingen als andere thorakolumbale Verletzungen der Gruppe B. Dabei traten neurologische Defizite nur bei hochenergetischen Unfällen auf. Ein durch M. Bechterew oder DISH versteiftes Achsenskelett erhöhte das Risiko für eine Hyperextensionsverletzung. Im Vergleich zu anderen Verletzungsformen der thorakolumbalen Wirbelsäule traten Hyperextensionsverletzungen verhältnismäßig häufiger bei vorgeschädigten Wirbelsäulen und somit bei älteren Menschen auf. Nur im Falle einer Vorerkrankung der Wirbelsäule konnte bereits ein niederenergetisches Trauma zu einer Hyperextensionsverletzung führen. Dabei war dann vor allem der thorakolumbale Übergang und weniger die thorakale Wirbelsäule betroffen, bei der es hauptsächlich durch hochenergetische Unfälle zu Verletzungen kam. Transossäre Hyperextensionsverletzungen der vorderen und der hinteren Säule traten nur bei alterierten Wirbelsäulen auf. Bei wirbelsäulengesunden Patienten verlief die Verletzung jeweils transdiskal und durch die hintere Säule ligamentär. N2 - Rare forms of thoracolumbar spine injuries are hyperextension dislocations. We analyzed in this retrospective study 27 cases of hyperextension injuries, which occurred between 1997 and 2010 and were treated in the university hospital of Wuerzburg, Germany. Results: 74 % of the patients were men. The average age of all patients was 70,6 years (25 – 92 years, SD: 15,8). 22 patients had a pre-existing illness of the thoracolumbar spine: in 17 cases (63 %) a diffuse idiopathic skeletal hyperostosis (DISH), 4 patients (3,7 %) with an ankylosing spondylitis and 1 case with an osteoporosis. In 29,6 % of cases the causal trauma was light and in 70,6 % there was an high-energy accident. In 14 patients (52 %) the anterior column of the spine was injured through the disc and in 13 cases (48 %) the lesion was osseous. All patients without a pre-existing illness of the spine had an injury through the disc. 6 patients (22,2 %) got a neurological deficit because of the hyperextension injury. All patients were treated operatively by implantation of a fixateur interne. Conclusion: Compared with literature the results of our study showed that hyperextension injuries of the thoracolumbar spine had a higher risk for neurological deficits than other group-B-lesions. Neurological deficits only occurred after high-energy traumas. Ankylosing spondylitis and DISH increased the incidence for thoracolumbar hyperextension injuries. Hyperextension lesions more frequently occurred to spines with a pre-existing illness and thus to older people. Only in presence of a pre-existing spine-illness a light trauma could cause a hyperextension injury. In these cases the thoracolumbar junction was mainly affected, thoracic spine injuries mostly occurred after a high-energy trauma. Osseous hyperextension lesions of the anterior and posterior column only appeared in spines with a pre-existing illness, in an intact spine the lesion always occurred through the disc and was ligamentous. KW - Wirbelsäulenverletzung KW - Extension KW - Lendenwirbelsäule KW - Brustwirbelsäule KW - extension KW - spine KW - thoracolumbar Y1 - 2013 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-83062 ER -