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Type II odontoid fracture in elderly patients treated conservatively: is fracture healing the goal?

  • Giorgio LofreseEmail author
  • Antonio Musio
  • Federico De Iure
  • Francesco Cultrera
  • Antonio Martucci
  • Corrado Iaccarino
  • Walid Ibn Essayed
  • Reza Ghadirpour
  • Franco Servadei
  • Michele Alessandro Cavallo
  • Pasquale De Bonis
Original Article

Abstract

Purpose

Analysis of functional outcome of elderly patients with type II odontoid fractures treated conservatively in relation to their radiological outcome.

Methods

A total of 50 geriatric patients with type II odontoid fractures were treated with Aspen/Vista collars. On admission, each patient was assessed assigning ASA score, modified Rankin Scale (mRS-pre) and Charlson Comorbidity Index (CCI). From 12–15 months after treatment, functional evaluations were performed employing a second modified Rankin Scale (mRS-post) together with Neck Disability Index (NDI) and Smiley-Webster pain scale (SWPS). Radiological outcome was evaluated through dynamic cervical spine X-rays at 3 months and cervical spine CT scans 6 months after treatment. Three different conditions were identified: stable union, stable non-union and unstable non-union. Surgery was preferred whenever a fracture gap > 2 mm, an antero-posterior displacement > 5 mm, an odontoid angulation > 11° or neurological deficits occurred.

Results

Among the 50 patients, 24 reached a stable union, while 26 a stable non-union. Comparing the two groups, no differences in ASA (p = 0.60), CCI (p = 0.85) and mRS-pre (p = 0.14) were noted. Similarly, no differences in mRS-post (p = 0.96), SWPS (p = 0.85) and NDI (p = 0.51) were observed between patients who reached an osseous fusion and those with a stable fibrous non-union. No effects of age, sex, ASA, mRS-pre, fracture dislocation and radiological outcome were discovered on functional outcome. At logistic regression analysis, female sex and high values of CCI emerged associated with worse NDI.

Conclusions

In geriatric type II odontoid fractures, pre-injury clinical status and comorbidities overcome imaging in determining post-treatment level of function. Hard collar immobilization led to a favourable functional outcome with mRS-post, NDI and SWPS values diffusely encouraging whatever a bony union or a fibrous non-union was obtained.

Graphical Abstract

These slides can be retrieved under Electronic Supplementary Material.

Keywords

Elderly Odontoid Fracture Collar Outcome Healing 

Notes

Compliance with ethical standards

Conflict of interest

The authors report no conflict of interest concerning the materials or methods used in this study or the findings specified in this paper.

Supplementary material

586_2019_5898_MOESM1_ESM.pptx (1.3 mb)
Supplementary material 1 (PPTX 1346 kb)

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Giorgio Lofrese
    • 1
    Email author
  • Antonio Musio
    • 2
  • Federico De Iure
    • 3
  • Francesco Cultrera
    • 1
  • Antonio Martucci
    • 3
  • Corrado Iaccarino
    • 4
  • Walid Ibn Essayed
    • 5
  • Reza Ghadirpour
    • 6
  • Franco Servadei
    • 4
  • Michele Alessandro Cavallo
    • 2
  • Pasquale De Bonis
    • 2
  1. 1.Neurosurgery Division“M. Bufalini” HospitalCesenaItaly
  2. 2.Neurosurgery DivisionUniversity Hospital S.AnnaCona di FerraraItaly
  3. 3.Department of Spine SurgeryMaggiore “C.A. Pizzardi” HospitalBolognaItaly
  4. 4.Neurosurgery-Neurotraumatology DivisionUniversity Hospital of ParmaParmaItaly
  5. 5.Department of 1 NeurosurgeryBrigham and Women’s Hospital, Harvard Medical SchoolBostonUSA
  6. 6.Neurosurgery DivisionS.Maria Nuova HospitalReggio EmiliaItaly

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