Comparison of minimally invasive percutaneous vs. open dorsal fixation and additional thoracoscopic ventral spondylodesis in AO/OTA type A3 thoracolumbar fractures

Organizational Data

DRKS-ID:
DRKS00015693
Recruitment Status:
Recruiting complete, study complete
Date of registration in DRKS:
2018-11-07
Last update in DRKS:
2020-12-07
Registration type:
Retrospective

Acronym/abbreviation of the study

A3

URL of the study

No Entry

Brief summary in lay language

Fractures of the throracolumbar transition are the most frequent fractures of the spine. The surgical treatment of these fractures is controversially discussed. The aim of this study was to compare the treatment strategies of two large German trauma centers for fractures of thoracic vertebrae 11 and 12 as well as lumbar vertebrae 1 and 2. Center A operates on the patients in minimally invasive technique, center B in open technique. It includes all patients who were treated from 01.07.2012 to 31.05.2014 due to a fracture of the thoracolumbar transition by dorsal stabilization in open or less invasive technique in the trauma surgery of the University Hospital Leipzig as well as the BG trauma clinic in Murnau. The aim is to examine the radiological and functional outcome after at least 2 years. Hypotheses: The technique of minimally invasive vestibular stabilization shows an equally good reduction rate compared to the open technique with a lower complication rate. 2. 2. due to a stringent time-delayed indication for ventral care, an additive ventral care can be dispensed with in a relevant proportion of patients.

Brief summary in scientific language

Fractures of the thoracolumbar transition are the most frequent fractures of the spinal column and can lead to considerable functional limitations. The surgical treatment of these injuries by minimally invasive percutaneous dorsal stabilization has become increasingly important in recent years. However, the superiority of this surgical technique over the open technique is controversially discussed. The aim of this study was therefore to compare the treatment strategies of two trauma centers exclusively for AO type A3 fractures of the thoracolumbar transition with regard to clinical and radiological outcome. The main difference between the treatment of both centers is the minimally invasive and the open surgical technique. Methodology Included in this retrospective study were patients between 18 and 65 years of age with AO type A3 fractures of the vertebral bodies BWK 11 - LWK 2 without neurological deficits who were dorsally stabilized by minimally invasive or open technique between 2013 - 2015. Among others, osteoporotic vertebral body fractures and fractures of other AO classifications as well as polytraumatized patients were excluded. Patients were evaluated clinically using validated scores (VAS score, Owestry Disability score, SF-36) and radiologically by measuring bisegmental kyphosis angle and pelvic alignment at least 24 months postoperatively. Hypotheses: 1 The technique of minimally invasive dorsal stabilization shows an equally good reduction rate compared to the open technique with a lower complication rate. 2 Due to a stringent time-delayed indication for ventral restoration, an additive ventral restoration can be dispensed with in a relevant proportion of patients.

Health condition or problem studied

ICD10:
S32.01
ICD10:
S32.02
Healthy volunteers:
No Entry

Interventions, Observational Groups

Arm 1:
Minimally invasive surgical technique, early additive ventral stabilization The examination takes place at least 2 years after the operation. Evaluation of X-ray images VAS Spine Score Oswestry Disability Score SF-36 Quality of life
Arm 2:
Open operative technique, late additiv ventral Stabilisation The examination takes place at least 2 years after the operation. Evaluation of X-ray images VAS Spine Score Oswestry Disability Score SF-36 Quality of life

Endpoints

Primary outcome:
Bisegmental kyphotic angle, radiological measurement Functional outcome is ODI-Score by questionnaire
Secondary outcome:
Sagital Alignment radiological SF-36, VAS-Score by questionnaire

Study Design

Purpose:
Basic research/physiological study
Retrospective/prospective:
No Entry
Study type:
Non-interventional
Longitudinal/cross-sectional:
No Entry
Study type non-interventional:
No Entry

Recruitment

Recruitment Status:
Recruiting complete, study complete
Reason if recruiting stopped or withdrawn:
No Entry

Recruitment Locations

Recruitment countries:
  • Germany
Number of study centers:
Multicenter study
Recruitment location(s):
  • University medical center Orthopädie und Unfallchirurgie Leipzig
  • University medical center Orthopädie und Unfallchirurgie Leipzig
  • Medical center BG Klinik Unfallchirurgie Murnau

Recruitment period and number of participants

Planned study start date:
No Entry
Actual study start date:
2016-12-01
Planned study completion date:
No Entry
Actual Study Completion Date:
2017-12-01
Target Sample Size:
87
Final Sample Size:
87

Inclusion Criteria

Sex:
All
Minimum Age:
18 Years
Maximum Age:
65 Years
Additional Inclusion Criteria:
Inclusion criteria: Detailed information and education Signature of informed consent after sufficient time for reflection Operative care according to the above techniques in the period 01.07.2012 to 31.05.2014. Age 18-65 years

Exclusion Criteria

Exclusion criteria: Vertebral body fractures of other AO classifications Patients with neurological deficits fractures of other genesis (e.g. tumor / metastasis) incapacity to consent Osteoporotic fractures Polytrauma with ISS>16 Kypho or vertebroplasty additives Long-distance dorsal stabilizations (over more than 2 motion segments) pregnancy

Addresses

Primary Sponsor

Address:
Klinik und Poliklinik für Orthopädie, Unfallchirurgie und Plastische Chirurgie der Universitätsklinik Leipzig
Liebigstr 20
04103 Leipzig
Germany
Telephone:
No Entry
Fax:
No Entry
Contact per E-Mail:
Contact per E-Mail
URL:
No Entry
Investigator Sponsored/Initiated Trial (IST/IIT):
Yes

Contact for Scientific Queries

Address:
BG Unfallklinik Murnau
Christoph Erichsen
Prof. Küntscher Str. 8
82418 Murnau
Germany
Telephone:
08841 48480
Fax:
08841 48 4573
Contact per E-Mail:
Contact per E-Mail
URL:
No Entry

Contact for Public Queries

Address:
BG Unfallklinik Murnau
Christoph Erichsen
Prof. Küntscher Str. 8
82418 Murnau
Germany
Telephone:
08841 48480
Fax:
08841 48 4573
Contact per E-Mail:
Contact per E-Mail
URL:
No Entry

Principal Investigator

Address:
BG Unfallklinik Murnau
Christoph Erichsen
Prof. Küntscher Str. 8
82418 Murnau
Germany
Telephone:
08841 48480
Fax:
08841 48 4573
Contact per E-Mail:
Contact per E-Mail
URL:
No Entry

Sources of Monetary or Material Support

Institutional budget, no external funding (budget of sponsor/PI)

Address:
Klinik und Poliklinik für Orthopädie, Unfallchirurgie und Plastische Chirurgie der Universitätsklinik Leipzig
Liebigstr 20
04103 Leipzig
Germany
Telephone:
No Entry
Fax:
No Entry
Contact per E-Mail:
Contact per E-Mail
URL:
No Entry

Ethics Committee

Address Ethics Committee

Address:
Geschäftsstelle der Ethik-Kommission an der Medizinischen Fakultät der Universität Leipzig c/o Zentrale Poststelle
Liebigstraße 18
04103 Leipzig
Germany
Telephone:
+49-341-9715490
Fax:
+49-341-9715499
Contact per E-Mail:
Contact per E-Mail
URL:
http://home.uni-leipzig.de/ethik

Vote of leading Ethics Committee

Vote of leading Ethics Committee
Date of ethics committee application:
2016-10-12
Ethics committee number:
276/16-ek
Vote of the Ethics Committee:
Approved
Date of the vote:
2016-11-29

Further identification numbers

Other primary registry ID:
No Entry
EudraCT Number:
No Entry
UTN (Universal Trial Number):
No Entry
EUDAMED Number:
No Entry

IPD - Individual Participant Data

Do you plan to make participant-related data (IPD) available to other researchers in an anonymized form?:
No
IPD Sharing Plan:
No Entry

Study protocol and other study documents

Study protocols:
No Entry
Study abstract:
No Entry
Other study documents:
No Entry
Background literature:
No Entry
Related DRKS studies:
No Entry

Publication of study results

Planned publication:
No Entry
Publikationen/Studienergebnisse:
No Entry
Date of first publication of study results:
No Entry
DRKS entry published for the first time with results:
No Entry

Basic reporting

Basic Reporting / Results tables:
No Entry
Brief summary of results:
No Entry