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[Application of anterior percutaneous screw fixation in treatment of odontoid process fractures in aged people]

OBJECTIVE: To explore the efficacy of anterior percutaneous screw fixation in the treatment of odontoid process fractures in aged people. METHODS: From February 2001 to April 2009, 15 elderly patients with odontoid fracture were treated with anterior percutaneous screw fixation,including 13 males and 2 females; the average age was 69.3 years (ranged, 60 to 86 years). According to Anderson classification, there were 10 patients with type II fractures (type II A in 7 cases, type II B in 3 cases, based on Eysel and Roosen classification), 4 patients with shallow type III fractures, 1 patient with deep type III fractures. Thirteen patients were fresh fractures, 2 patients were obsolete fractures. All patients had varying degrees of neck or shoulder pain, and limit activity of neck. There were 4 patients with neural symptoms including 2 grade D and 2 grade C according to Frankel classification. All the patients were followed up and were assessed by radiology. Clinical examination included neck activity, neurological function and the degree of neck pain. Radiology examinations including anteroposterior, lateral, open mouth position and flexion-extension radiographs of cervical vertebra were performed. RESULTS: After surgery, all patients were followed up,and the duration ranged from 6 to 60 months (averaged 31.3 months). Two patients died of other diseases during the follow-up period (18 and 22 months after surgery respectively). All patients got satisfactory results, and all screws were in good position. As the screw was too long, esophagus was compressed by screw tail in one case. One case showed fibrous union, 12 cases had achieved solid bony union, 2 cases showed nonunion without clinical symptoms. The rotation of neck in 3 cases was mildly limited,the neck function of the remaining patients were normal. Four patients with symptoms nerve injuries improved after operation (Frankel E in 3 cases, Frankel D in 1 case). The symptom of neck pain had a significant improvement after surgery (P < 0.001). The VAS score decreased from preoperative (6.07 +/- 1.44) (4 to 8 scores),to postoperative (1.13 +/- 0.92) (0 to 3 scores). And there were no severe postoperative complications. CONCLUSION: The anterior percutaneous screw fixation is less traumatic than conventional approaches for aged people in dealing with odontoid process fractures. Most patients will achieve satisfactory clinical results, as long as the general conditions of them are comprehensively assess. However, this procedure should not be used in patients with comminuted odontoid fractures or severe osteoporosis Keywords : Aged,Aged,80 and over,Bone Screws,China,classification,complications,diagnostic imaging,Esophagus,Female,Follow-Up Studies,Fracture Fixation,Internal,Fractures,Bone,Humans,injuries,instrumentation,Male,methods,Middle Aged,Mouth,Neck,Neck Pain,Odontoid Process,Osteoporosis,Pain,Patients,physiopathology,Postoperative Complications,Radiology,Rotation,Shoulder,Shoulder Pain,Skin,surgery,Tail,Tomography,X-Ray Computed,, Anterior,Percutaneous,Screw,Fixation, physio ice packs

Date of Publication : 2011 Mar

Authors : Luo P;Dou HC;Ni WF;Huang QS;Wang XY;Xu HZ;Chi YL;

Organisation : Department of Orthopaedics, the Second Affiliated Hospital of Wenzhou Medical College, Wenzhou 325000, Zhejiang, China

Journal of Publication : Zhongguo Gu Shang

Pubmed Link : https://www.ncbi.nlm.nih.gov/pubmed/21485573

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