Cervical Pedicle Screw Placement Using Medial Funnel Technique
Korean Journal of Spine
; : 84-88, 2017.
Article
ي En
| WPRIM
| ID: wpr-187211
المكتبة المسؤولة:
WPRO
ABSTRACT
OBJECTIVE: Cervical pedicle screw (CPS) placement is very challenging due to high risk of neurovascular complications. We devised a new technique (medial funnel technique) to improve the accuracy and feasibility of CPS placement. METHODS: We reviewed 28 consecutive patients undergoing CPS instrumentation using the medial funnel technique. Their mean age was 51.4 years (range, 30–81 years). Preoperative diagnosis included degenerative disease (n=5), trauma (n=22), and infection (n=1). Screw perforations were graded with the following criteria: grade 0 having no perforation, grade 1 having 50% of screw diameter. Grades 0 and 1 were considered as correct position. The degree of perforation was determined by 2 junior neurosurgeons and 1 senior neurosurgeon. RESULTS: A total of 88 CPSs were inserted. The rate of correct placement was 94.3%; grade 0, 54 screws; grade 1, 29 screws; grade 2, 4 screws; and grade 3, 1 screw. No neurovascular complications or failure of instrumentation occurred. In perforated screws (34 screws), lateral perforations were 4 and medial perforations were 30. CONCLUSION: We performed CPS insertion using medial funnel technique and achieved 94.3% (83 of 88) of correct placement. And it can decrease lateral perforation.
Key words
النص الكامل:
1
الفهرس:
WPRIM
الموضوع الرئيسي:
Bone Screws
/
Cervical Vertebrae
/
Diagnosis
/
Pedicle Screws
/
Neurosurgeons
نوع الدراسة:
Diagnostic_studies
المحددات:
Female
/
Humans
اللغة:
En
مجلة:
Korean Journal of Spine
السنة:
2017
نوع:
Article