NCT05262478

Brief Summary

Prostheses use subsequently became prevalent and a number of studies were conducted. However, prosthesis-associated heterotropic ossification (HO) in the segments with prostheses was reported in 2005, which disrupted mobility and caused fusion. In the present study, we aimed to investigate the clinical outcomes, HO incidence, and prosthesis mobility in the patients following the operative use of Alpha-D disc prosthesis as developed and used by the authors to treat cervical disk diseases.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
33

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Jan 2022

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2022

Completed
1 month until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2022

Completed
14 days until next milestone

Study Completion

Last participant's last visit for all outcomes

February 15, 2022

Completed
6 days until next milestone

First Submitted

Initial submission to the registry

February 21, 2022

Completed
9 days until next milestone

First Posted

Study publicly available on registry

March 2, 2022

Completed
Last Updated

March 2, 2022

Status Verified

February 1, 2022

Enrollment Period

1 month

First QC Date

February 21, 2022

Last Update Submit

February 21, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • Heterotropic ossification

    McAfee-Mehren classification

    Postoperative 18-78.months

Secondary Outcomes (2)

  • visual analog scale

    4 and 12 months after surgery

  • neck disability index

    4 and 12 months after surgery

Study Arms (1)

Alpha-D cervical disc prosthesis

Alpha-D cervical disc prosthesis was developed jointly by the Spine Center of Koç University Faculty of Medicine and Toledo University Bioengineering Department. It was designed as a single unit to ensure user-friendly administration for surgeons, and it was designed and manufactured to reproduce the movements of the normal cervical movement segment.

Device: Alpha-D CDP

Interventions

Alpha-D cervical disc prosthesis was developed jointly by the Spine Center of Koç University Faculty of Medicine and Toledo University Bioengineering Department. It was designed as a single unit to ensure user-friendly administration for surgeons, and it was designed and manufactured to reproduce the movements of the normal cervical movement segment.

Alpha-D cervical disc prosthesis

Eligibility Criteria

Age27 Years - 59 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)
Sampling MethodNon-Probability Sample
Study Population

We included 33 patients with cervical disc hernia and associated radiculopathy upon radiological examination, who underwent a cervical discectomy and received cervical disc protheses (CDP; arthroplasty) with a single-level anterior discectomy.

You may qualify if:

  • cervical disc hernia
  • underwent cervical discectomy and received cervical disc prostheses

You may not qualify if:

  • history of cervical surgery,
  • kyphotic deformity,
  • rheumatological or other systemic diseases,
  • severe osteophytes caused by advanced degenerative disc disease
  • severe spinal stenosis

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Ataturk University

Erzurum, Yakutiye, Turkey (Türkiye)

Location

Related Publications (2)

  • Leven D, Meaike J, Radcliff K, Qureshi S. Cervical disc replacement surgery: indications, technique, and technical pearls. Curr Rev Musculoskelet Med. 2017 Jun;10(2):160-169. doi: 10.1007/s12178-017-9398-3.

    PMID: 28493215BACKGROUND
  • Park JH, Rhim SC, Roh SW. Mid-term follow-up of clinical and radiologic outcomes in cervical total disk replacement (Mobi-C): incidence of heterotopic ossification and risk factors. J Spinal Disord Tech. 2013 May;26(3):141-5. doi: 10.1097/BSD.0b013e31823ba071.

    PMID: 22105106BACKGROUND

Study Officials

  • Mehmet K Karadag

    Mehmet Kursat Karadag

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
RETROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

February 21, 2022

First Posted

March 2, 2022

Study Start

January 1, 2022

Primary Completion

February 1, 2022

Study Completion

February 15, 2022

Last Updated

March 2, 2022

Record last verified: 2022-02

Locations