Osteologie 2012; 21(03): 168-173
DOI: 10.1055/s-0037-1621680
Osteoplasty of the spine
Schattauer GmbH

Treatment of Denis 1, 2 and 3 insufficiency fracture zones of the os sacrum

Individual approaches adapted to the course of the fracture in CT-assisted balloon sacroplastyVersorgung von Denis-1-, -2- und -3-Insuffizienzfrakturzonen des Os sacrumIndividuelle dem Frakturverlauf angepasste Zugangswege bei der CT-gesteuerten Ballon-Sakroplastie zur
R. Andresen
1   Institute of Diagnostic and Interventional Radiology/Neuroradiology, Westkuestenklinikum Heide, Academic Teaching Hospital of the Universities of Kiel, Luebeck and Hamburg, Heide/Germany
,
S. Radmer
2   Center of Orthopedics, Berlin
,
P. Kamusella
1   Institute of Diagnostic and Interventional Radiology/Neuroradiology, Westkuestenklinikum Heide, Academic Teaching Hospital of the Universities of Kiel, Luebeck and Hamburg, Heide/Germany
,
C. Wissgott
1   Institute of Diagnostic and Interventional Radiology/Neuroradiology, Westkuestenklinikum Heide, Academic Teaching Hospital of the Universities of Kiel, Luebeck and Hamburg, Heide/Germany
,
J. Banzer
3   Radiology, Charité University Berlin, Campus Benjamin Franklin, Berlin/Germany
,
H.-C. Schober
4   Department of Internal Medicine, Municipal Hospital Suedstadt Rostock, Academic Teaching Hospital of the University of Rostock/Germany
› Author Affiliations
Further Information

Publication History

received: 18 August 2012

accepted: 22 August 2012

Publication Date:
04 January 2018 (online)

Zusammenfassung

Beiälteren Patienten mit reduzierter Knochenqualität sind Insuffizienzfrakturen des Os sacrum relativ häufig und typischerweise mit starken, invalidisierenden Schmerzen verbunden. Ziel unserer Studie war die Durchführbarkeit der Zementaugmentation mittels Ballonkatheterüber individuelle, die komplexe Anatomie des Os sacrum und die Ausrichtung des Frakturgeschehens berücksichtigende Zugangswege sowie die postinterventionelle Erfassung von Leckagen und Darstellung des klinischen Outcomes. Bei 40 Patienten mit schwerer Osteoporose (24 Frauen mit einem Durchschnittsalter von 74,4 Jahren, 16 Männer mit einem Durchschnittsalter von 69,7 Jahren) wurde im CT und MRT eine Ossacrum-Fraktur detektiert. Bei 17 Frauen und neun Männern war diese Fraktur unilateral, bei sieben Frauen und sieben Männern bilateral. Die Frakturen wurden nach Denis eingeteilt. Um eine Zementverteilung in Längsrich-tung zur Fraktur zu erreichen, wurde der Ballonkatheterüber eine Hohlnadel in das Os sacrum entweder von dorsal nach ventral, von caudal nach cranial oder von lateral nach medial transiliacal eingebracht. Der Ballonkatheter wurde daraufhin entlang der Fraktur in der entsprechenden Richtung einbis dreimal in-und deflatiert. Der dadurch geschaffene Hohlraum wurde dann mit PMMA-Zement im Niederdruckverfahren aufgefüllt. Anschließend erfolgte eine konventionelle Röntgenaufnahme in zwei Ebenen sowie ein Kontroll-CT. Die Schmerzintensität wurde prä interventionem, am zweiten Tag sowie sechs und zwölf Monate post interventionem mittels visueller Analogskala (VAS) bestimmt. Zusätzlich wurde die Patientenzufriedenheit nach zwölf Monaten abgefragt. Bei allen Patienten ließ sich die Ballon-Sakroplastie technisch gut anwenden. In der Röntgen-und CT-Kontrolle fand sich im Os sacrum entlang der Frakturausdehnung eine ausreichende Zementverteilung, wobei eine Leckage ausgeschlossen werden konnte. Der Mittelwert für Schmerzen lag nach VAS vor Intervention bei 8,9, die Patienten mit einer Denis-2-Fraktur hatten tendenziell die stärksten Schmerzen. Am zweiten postoperativen Tag zeigte sich eine signifikante Schmerzreduktion (p < 0,001) mit einem Durchschnittswert von 2,7; dieser war mit 2,5 nach sechs Monaten und mit 2,3 nach zwölf Monaten stabil. Nach zwölf Monaten fand sich eine hohe Patientenzufriedenheit. Zugangswege, welche die Anatomie des Os sacrum und die Frakturausrichtung im Os sacrum berücksichtigen, erlauben eine mengenoptimierte und sichere Zementaugmentation. Die Ballon-Sakroplastie wird hierdurch zu einer effektiven, komplikationsarmen Behandlungsmethode zur schnellen und signifikanten Schmerzreduktion bei Patienten mit einer Os-sacrum-Fraktur.

Summary

In elderly patients with reduced bone quality, insufficiency fractures of the sacrum are relatively common and are typically associated with severe and debilitating pain. The objective of our study was to determine the practicability of cement augmentation using a balloon catheter via individual approaches taking into consideration the complex anatomy of the sacrum and the course of the fracture, as well as the post-interventional determination of leakages and representation of the clinical outcome. In 40 patients with severe osteoporosis (24 women with an average age of 74.4 years, 16 men with an average age of 69.7 years), a sacral fracture was detected by CT and MRI. This fracture was unilateral in 17 women and 9 men and bilateral in 7 women and 7 men. The fractures were classified according to Denis. In order to achieve a cement distribution longitudinally in relation to the fracture, the balloon catheter was inserted into the sacrum via a hollow needle either from dorsal to ventral, from caudal to cranial, or from lateral to medial using the transiliac approach. The balloon catheter was then inflated and deflated 1–3 times along the fracture in the respective direction, and the hollow space created was then filled with PMMA cement using a low-pressure procedure. A conventional radiograph in two planes and a control CT were then performed. Pain intensity was determined pre-intervention, on the 2nd day post-intervention and 6 and 12 months post-intervention, using a visual analogue scale (VAS). In addition, the patients were asked to state how satisfied they were after 12 months. The balloon sacroplasty was performed successfully from a technical point of view in all patients. The radiographic and CT control showed sufficient cement distribution in the sacrum along the course of the fracture, whereby leakage could be ruled out. According to the VAS, the mean pain score was 8.9 before the intervention, while the patients with a Denis 2 fracture tended to have the strongest pain. There was a significant reduction in pain on the 2nd postoperative day, with an average value of 2.7 (p < 0.001), which was stable at 2.5 after 6 months and 2.3 after 12 months. A high level of patient satisfaction was found after 12 months. Approaches that take into account the anatomy of the sacrum and the course of the sacral fracture enable reliable augmentation with an optimum amount of cement. This makes balloon sacroplasty an effective treatment that has few complications, for rapid and significant pain reduction in patients with a sacral fracture.

 
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