Wounds and Injuries

All Conditions

Diseases and Abnormalities at or Before Birth

Fractures, Bone

Congenital Abnormalities

Any subject with DDD, tumor, deformity ot trauma to the cervical spine in which the investigator determines the subject will require an ACDF using the MaxAn Plate.

Gary Dix, MD

This study is being performed to document the outcomes of subjects using our MaxAn Anterior Cervical Plate and assess them for Adjacent level Disease. All subjects will be followed for 2 years.

The purpose of this Post Market Surveillance Validation is to document the performance and clinical outcomes of the MaxAn® Anterior Cervical Plate System. Dr. Park, et.al conducted a retrospective review and found a positive association between adjacent-level ossification following anterior cervical plate procedures and the plate-to-disc distance. 1 They concluded that when the anterior cervical plates were placed at least 5mm away from the adjacent disc spaces, there was a decrease in the likelihood of moderate-to-severe adjacent-level ossification. The design of the MaxAn Anterior Cervical Plate and accompanying technique allows this type of plate placement; therefore we will be looking at the radiographic outcomes of these subjects and comparing them to the retrospective chart review conducted by Dr. Park using the MaxAn Technique allows you to achieve plate placement of 5mm from the supraadjacent level which will help minimize the risk of adjacent level ossification.

MaxAn Post Market Surveillance Validation

A Post Market Surveillance Validation to Evaluate the Effectiveness of the MaxAn Anterior Cervical Plate

Qualitatively assessed by an independent Radiologist using lateral radiographs Grade 0 - None Grade 1 - Mild (if the ossification extended across \<50% of the disc space) Grade 2 - Moderate (if the ossification extended across ≥ 50% of the disc space) Grade 3 - Severe (if there is complete bridging of the adjacent disc space)

The Neck Disability Index (NDI) is a patient-completed, condition-specific functional status questionnaire with 10 items including pain, personal care, lifting, reading, headaches, concentration, work, driving, sleeping and recreation. Each section is scored on a 0 to 5 rating scale, in which zero means 'No pain' and 5 means 'Worst imaginable pain', with the points summed to a total score. The test can be interpretated as a raw score, with a minimum score of 0 and a maximum score of 50. A higher score indicates more patient-rated disability. To use the NDI for patient decisions, a clinically important change was calculated as 5 points.

Zimmer Biomet

All adverse events, including both observed or volunteered problems, complaints, symptoms, physical signs or disease which either occur during the study, having been absent at baseline, or, if present at baseline, appear to worsen during the clinical outcomes collection study were recorded as part of the study.

ACDF With MaxAn Plate

Age, Continuous

Sex: Female, Male

Race and Ethnicity were not collected from any participant.

Race and Ethnicity Not Collected

United States

Region of Enrollment

BMI (kg/m^2)

Employment Status

Tobacco Use

History of any previous spine surgery in the cervical region, included fusion, discectomy, decompression, laminectomy.

Previous Cervical Spine Surgery

Number of Operated Levels

Zimmer Biomet Spine Clinical Affairs

Ten of the 110 patients with 24 month follow up were not evaluated for this endpoint. Eight had missing radiographs and 2 had unevaluable radiographs.

Spots Global Cancer Trial Database for ddd

Every month we try and update this database with for ddd cancer trials from around the world to help patients and their families find trials that might be right for them.
We offer this 100% free of charge and do not endorse any of the trials listed here, we hope it helps you or a loved one.

Spots Global Cancer Trial Database for ddd

Every month we try and update this database with for ddd cancer trials from around the world to help patients and their families find trials that might be right for them. We offer this 100% free of charge and do not endorse any of the trials listed here, we hope it helps you or a loved one.

Every month we try and update this database with for ddd cancer trials from around the world to help patients and their families find trials that might be right for them.
We offer this 100% free of charge and do not endorse any of the trials listed here, we hope it helps you or a loved one.