C5
8 patients with cervical myelopathy treated by French-door laminoplasty and internal fixation. A novel technique of fixation is employed to provide immediate stability, pain relief and rapid mobilisation. To report the clinical and radiological outcomes of this new fixation device for French–door laminoplasty with minimum follow-up of 30 months. Hardware assisted laminoplasty has the potential advantage of instant stability and prevention of recurring stenosis. The use of titanium mini-plates has been described in open-door laminoplasty and now we describe this technique in French–door laminoplasty. 8 patients with cervical myelopathy secondary to congenital stenosis (2) and multi-level spondylotic myelopathy (6) underwent 2-4 level French–door laminoplasty and mini-plate fixation. The average follow-up was 46.5 months. Autogenous iliac crest bone graft was interposed between the sagittally split spinous processes and 16-18 holed titanium mini-plates were contoured into a trapezoidal shape and secured to the posterior elements with screws. Patients then mobilised without external support. The mean follow-up was 46.5 months. The mean improvement in NDI at final follow-up was 35% and mean improvement in VAS was 4 points. JOA score improved from a mean of 10 to a mean of 14.8 post-operatively. All patients had achieved a significant neurological improvement and pain relief. There were no post-operative hardware related complications, pseudarthrosis or neurological deterioration. French-door laminoplasty is an excellent alternative to laminectomy for treatment of young patients with cervical myelopathy. The use of titanium mini-plates not only provides instant stability and pain relief but also seems to minimize the risk of C5
Many aspects of the surgical treatment of patients with tuberculosis
(TB) of the spine, including the use of instrumentation and the
types of graft, remain controversial. Our aim was to report the
outcome of a single-stage posterior procedure, with or without posterior
decompression, in this group of patients. Between 2001 and 2010, 51 patients with a mean age of 62.5 years
(39 to 86) underwent long posterior instrumentation and short posterior
or posterolateral fusion for TB of the thoracic and lumbar spines,
followed by anti-TB chemotherapy for 12 months. No anterior debridement
of the necrotic tissue was undertaken. Posterior decompression with
laminectomy was carried out for the 30 patients with a neurological
deficit.Aim
Patients and Methods
Between March 2000 and February 2006, we carried out a prospective study of 100 patients with a low-grade isthmic spondylolisthesis (Meyerding grade II or below), who were randomised to receive a single-level and instrumented posterior lumbar interbody fusion with either one or two cages. The minimum follow-up was for two years. At this stage 91 patients were available for review. A total of 47 patients received one cage (group 1) and 44 two cages (group 2). The clinical and radiological outcomes of the two groups were compared. There were no significant differences between the two groups in terms of post-operative pain, Oswestry Disability Score, clinical results, complication rate, percentage of post-operative slip, anterior fusion rate or posterior fusion rate. On the other hand, the mean operating time was 144 minutes (100 to 240) for patients in group 1 and 167 minutes (110 to 270) for those in group 2 (p = 0.0002). The mean blood loss up to the end of the first post-operative day was 756 ml (510 to 1440) in group 1 and 817 ml (620 to 1730) in group 2 (p <
0.0001). Our results suggest that an instrumented posterior lumbar interbody fusion performed with either one or two cages in addition to a bone graft around the cage has a low rate of complications and a high fusion rate. The clinical outcomes were good in most cases, regardless of whether one or two cages had been used.
We have treated 175 patients with a chordoma over a ten-year period. Only two had a family history of the condition and we describe these in this paper. In one patient the tumour was at the craniocervical junction and in the other the lesion affected the sacrum. We have undertaken a literature review of familial chordoma and have identified chromosomal abnormalities associated with the condition.
There are few reports on the treatment of pyogenic lumbar spondylodiscitis through the posterior approach using a single incision. Between October 1999 and March 2003 we operated on 18 patients with pyogenic lumbar spondylodiscitis. All underwent posterior lumbar interbody fusion using an autogenous bone graft from the iliac crest and pedicle screws via a posterior approach. The clinical outcome was assessed using the Frankel neurological classification and the criteria of Kirkaldy-Willis. Under the Frankel classification, two patients improved by two grades (C to E), 11 by one grade, and five showed no change. The Kirkaldy-Willis functional outcome was excellent in five patients, good in ten and fair in three. Bony union was confirmed six months after surgery in 17 patients, but in one patient this was not achieved until two years after operation. The mean lordotic angle before operation was 20° (−2° to 42°) and the mean lordotic angle at the final follow-up was 32.5° (17° to 44°). Two patients had a superficial wound infection and two a transient root injury. Posterior lumbar interbody fusion with an autogenous iliac crest bone graft and pedicle screw fixation via a posterior approach can provide satisfactory results in pyogenic spondylodiscitis.
