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J Spine Surg. 2018 Jun;4(2):281-286. doi: 10.21037/jss.2018.05.27.

Length of stay associated with posterior cervical fusion with intervertebral cages: experience from a device registry.

Author information

Department of Orthopaedic Surgery, University of Illinois, Chicago, IL, USA.
Western Regional Center for Brain & Spine Surgery, Las Vegas, NV, USA.
Orthopaedic Clinic of Daytona Beach, Daytona Beach, FL, USA.
Department of Neurosurgery, University of California, San Francisco, CA, USA.
Brazos Spine, College Station, TX, USA.
San Francisco, CA, USA.



Using a multi-center medical device registry, we prospectively collected a set of perioperative and clinical outcomes among patients treated with tissue-sparing, posteriorly-placed intervertebral cage fusion used in the management of symptomatic, degenerative neural compressive disorders of the cervical spine.


Cervical fusion utilizing posteriorly-placed intervertebral cages offers a tissue-sparing alternative to traditional instrumentation for the treatment of symptomatic cervical radiculopathy. A registry was established to prospectively collect perioperative and clinical data in a real-world clinical practice setting for patients treated via this approach. This study evaluated length of stay as well as estimated blood loss and procedural time in 271 registry patients.


The median length of stay was 1.1, 1.1 and 1.2 days for patients having a stand-alone arthrodesis, revision of a pseudoarthrosis, and circumferential fusion (360°), respectively, and was not related to number of levels treated. Historical comparison to published literature demonstrated that average lengths of stay associated with open, posterior lateral mass fixation were consistently ≥4 days. Average blood loss (range, 32-75 mL) and procedural time (range, 51-88 min) were also diminished in patients having tissue-sparing, cervical intervertebral cage fusion compared to open posterior lateral mass fixation.


Adoption of this tissue-sparing procedure may offer substantial cost-constraining benefits by reducing the length of post-operative hospitalization by, at least, 3 days compared to traditional lateral mass fixation.


CAVUX; Cervical fusion; DTRAX; cages; cervical radiculopathy; length of stay; minimally invasive surgery

Conflict of interest statement

Conflicts of Interest: Drs. Siemionow and McCormack have a financial interest in Providence Medical Technology. Drs. Smith, Gillespy, McCormack and Gundanna received remuneration for medical chart review and data collection. Dr. Block received support from Providence Medical Technology to assist in manuscript development.

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