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General Orthopaedics

Early Results Of Single-Stage Posterior Only Vertebral Column Resection In The Treatment Of Severe Spinal Tuberculosis

The South African Orthopaedic Association (SAOA) 57th Annual Congress



Abstract

Introduction and aim:

With up to 70% of adults with tuberculosis in Sub-Saharan Africa infected with human immunodeficiency virus (HIV), severe spinal tuberculosis presents a different set of clinical and surgical challenges. To overcome the disadvantages of various traditional techniques, particularly in patients who are HIV-positive with opportunistic pulmonary pathology, and to obviate the need to violate the diaphragm in the lower thoracic and upper lumbar spine, a posterior vertebral column resection through a single posterior approach was proposed. The aim of this study is to report on the early results of the single-stage posterior only vertebral column resection.

Method:

A total of 12 patients (10 females and 2 males) seen at CMJAH between January 2007 and January 2011 underwent a single-stage posterior only posterior vertebral column resection, and were retrospectively reviewed. The indications for PVCR are essentially the same as those for 360 degrees decompression and fusion. The mean follow-up period was 15.8 months (range 5 to 44 months).

Results:

Eleven allografts and 1 autograft were placed centrally and secured. The kyphosis correction averaged 17.83 degrees (range 0 to 45 degrees); with no loss of correction at last follow-up. The mean number of vertebrae removed was 1.325 (0.75 to 2) with the mean instrumented levels of 3.8 (2 to 7). The mean duration of surgery was 266.6 minutes (140 to 415 mins), the mean intra-operative blood loss was 712.5 mls (350–2100 mls). No loosening or breakage of screws occurred. The mean Frankel neurology grading at last follow-up was D (B to E).

Conclusion:

Early results of single-stage only PVCR are gratifying, particularly in patients with decreased pulmonary functions who will not withstand to adverse effects of anterior surgery and 2 stage-surgery. It is an effective surgical technique but technically demanding procedure with possible risks of major complications.