Clinical and radiological assessment of results of vertebral body stenting procedure.

Introduction: Use of metallic stents along with cement have shown good restoration of the vertebral body in cadaveric spines. We have presented the early results of vertebral body stenting done at Royal Derby Hospitals.

Patients and Methods: All patients had a transpedicular approach to the vertebral body. The vertebral body stent was expanded using a balloon as in balloon kyphoplasty. The balloon was removed leaving the stent in place. The resultant cavity was filled with partially cured polymethyl methacrylate in osteoporotic fractures and calcium phosphate cement in traumatic fractures.

Radiological assessment included pre operative measurement of vertebral body angle, correction achieved and maintenance of correction at follow up

All patients were assessed using the visual analogue score and oswestry disability index.

The procedure was done in 14 fractures (10 patients). 9 fractures were traumatic while 5 were osteoporotic fractures. The mean age of the traumatic fractures was 54.28 years while the mean age of osteoporotic fractures was 82.34 years. Mean follow up was 10 months. All traumatic fractures were type A 3.1. Mean vertebral body angle correction achieved was 8.3° (4° to 14.2°). None of the patients lost the reduction at follow up.

The mean VAS for pain at 6 months was 3.8. The mean oswestry disability index was 22% for traumatic fractures, while it was 44% for osteoporotic fractures.

Vertebral body stenting is a safe procedure. It was successful in restoring the anterior column with encouraging radiological and clinical results.

To assess how effective are the prognostic scores and the role of delayed presentation in predicting the outcomes in patients with metastatic spine disease.

Retrospectively data collected from December 2006 to December 2009. Medical records review included types of tumours, duration of symptoms, duration from referral to definitive treatment, expected survival, functional status before and after treatment. Karnofsky performance score and Modified Tokuhashi were used.

Results: 50 patients underwent surgical stabilisation for metastatic spine disease with or with out cord compression. Age ranged from 39 to 87 years (Avg: 64). Patients had four main types of tumours; (Myeloma 30%, Lymphoma 22% Lung CA 16% and Renal 12 %).

Inpatients without cord compression, the average time from referral to definitive treatment is 17 days. Over all fictional status improved in 70% of cases following surgical intervention. Patients who presented with cord compression had surgery with in 49 hours. Patients with high prognostic scores did not survive as long as expected. On the contrary, patients with poor prognostic scores survived longer than expected. This discrepancy is significant in patients with lung and renal malignancies. Patients with Myeloma did well as per the prognostic scores.

Prognostic scores are not uniformly effective in all types of malignancies. Factors like delayed presentation and general condition were not included in the prognostic factors. Hence, we conclude that we cannot make a decision purely based on the prognostic scores to perform either palliative or definitive surgery.

To assess whether Patients who are clinically Obese are more likely to require further or revision Surgery following One-Level simple Microdiscectomy compared to Non-obese Patients.

Retrospective, single centre and single Surgeon review of Patients' Clinical notes of consecutive Patients who underwent primary One-Level Microdiscectomy between December 2007 and July 2009.

Background: Obesity in Surgery has become a topical subject given the increasing proportion of Surgical Patients being Obese. This study provides the largest single centre and single Surgeon comparative cohort.

All Patients had undergone One-level simple Primary Microdiscectomy Surgery. Data from the Clinical notes included Patient Demographics, level and side of operation, Length of stay and Re-Operation details. A total number of 71 Patients were eligible for inclusion of which 38 were Female and 33 Male with an average age of 41 years. 25 Patients were Clinically Obese (35%). Average LOS was 1.1 days. 8% of the clinically Obese Patients required further Surgery compared to 8.7% in the Non-obese group.

Revision surgery for recurrent discs and Surgery for dural tear repair were the main reasons for return to theatre. Revision rates were comparable between the two Patient groups. LOS was no different for Obese Patients. This study concludes that Obese Patients undergoing One-Level simple Microdiscectomy do not face a significantly higher risk of requiring Revision Surgery in the future.

To investigate the clinical effectiveness and complications of caudal epidural steroid injections in the treatment of sciatica in patients with an MRI proven sacral tarlov cyst.

A Prospective case control study. All patients with corresponding radicular pain received a course of three caudal epidural steroid injections, two weeks apart and patients were reviewed at 3 months, 6 months and 1 year interval in a dedicated epidural follow up clinic. Data including demographics, MRI results, diagnosis and complications were documented. Outcome measures included the Oswestry Disability Questionnaire (ODQ), the visual analogue score (VAS) and the hospital anxiety and depression (HADS) score.

Overall patient satisfaction was recorded on a scale of 0-10.

38 patients with a sacral tarlov cyst were compared to a matched control group. In the sacral cyst group, mean VAS for axial pain reduced from 5.859 to 2.59 at three months (p<0.001). VAS for limb pain reduced from 6.23 to 2.53(<0.005). Mean ODI reduced from 45.49 at first visit to 21.98 at 3 months. Mean HADS also improved from 17 to 7. There was no statistical difference between the two groups. BMI did not affect the outcome in either group.

Based on our study, we conclude that presence of a sacral tarlov cyst is not a contraindication to caudal epidural steroid injection, as comparable significant improvement in both axial and limb pain in the short and intermediate periods was achieved without any major complications.