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Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXVI | Pages 21 - 21
1 Jun 2012
Kader DF Wardlaw D Smith FW
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Purpose

Lumbar paraspinal muscle dysfunction and low back pain are strongly correlated. Muscle atrophy is common in LBP and is recognised by MRI scan. Corticosteroid injections and physical rehabilitation programs are advocated for treatment of LBP.

The purpose is to evaluate efficacy of specific lumbar multifidus muscle retraining exercises and perifacet multifidus injections in treatment of Low Back Pain (LBP) and referred leg pain.

Method

63 patients with non-specific LBP, with or without leg pain, were randomised to three treatment groups. MR images of paraspinal muscle and the atrophy classified. A-Control group, standard physiotherapy for 10 weeks. B-Multifidus rehabilitation program for 10 weeks. C-Perifacet injection (multifidus injection) with methylprednisolone.

ODI was primary outcome measure and the SF-36, modified Zung Depression Index and others were secondary outcome measures.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXVI | Pages 43 - 43
1 Jun 2012
Wardlaw D Nandakumar A Vadvha M Smith F
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Objective

To identify any difference in clinical outcome between Intra-Capsular facet (IF) and Peri-facet (PF) injections in patients with low back pain (LBP). IF and PF joint steroid injections have been used for treatment of LBP with varied reports of pain relief for many years.

Methods

Patients randomised into IF and PF groups. Bilateral L4/5 and L5/S1 levels injected. 40mg of Depo-Medrone with Lignocaine (total 1ml) in IF group. 80mg of Depo-Medrone with 1ml of 0.5% Chirocaine (total 3ml) in PF group. Pain visual analogue score (VAS) and analgesic chart – completed till six months.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_X | Pages 45 - 45
1 Apr 2012
Wardlaw D Van Meirhaeghe J Bastian L Boonen S
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Balloon kyphoplasty (BKP) is a minimally invasive treatment for vertebral fractures (VCF) aiming to correct deformity using balloon tamps and bone cement to stabilize the body. Patients with 1 - 3 non-traumatic acute VCF were enrolled within three months of diagnosis and randomly assigned to receive either BKP (N=149) or nonsurgical care (N=151). Follow-up was 2 years.

The mean SF-36 physical component summary (PCS) score improved 5.1 points (95%CI, 2.8-7.4; p<0.0001) more in the kyphoplasty than the nonsurgical group at one month, the primary endpoint of the study.

Kyphoplasty improved the PCS score by an average of 3.0 points (95%CI, 1.6-5.4; p=0.002) during the two-year follow-up. There was a significant interaction between treatment and follow-up time (p=0.003), indicating that the treatment effect over the year is not uniform across follow-up; a result from early improvement that persists in the kyphoplasty group whereas the nonsurgical group shows more incremental improvement over time.

Overall, patients assigned to kyphoplasty also had statistically significant improvements over the two years compared to the control group in global quality of life (EQ-5D), pain relief (VAS), back disability (RMDQ) and days of limited activity (within a two-week period).

There was no statistical significant difference between groups in the number of patients with adverse events or new VCF's over 24 months.

Compared to the control, BKP improved quality of life and reduced back pain and disability and did not increase adverse events including the risk of new vertebral fractures over 2 years.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_X | Pages 131 - 131
1 Apr 2012
Vadhva M Wardlaw D Sabboubeh A
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Assessment of long term results of Chemonucleolysis vs. surgical enucleation in soft disc herniation

From 1982 to 1985, 100 patients with symptomatic disc herniation were randomly allocated to receive either Chemonucleolysis or disc enucleation after all these patients had a trial of conservative treatment for three months.

The outcome of result was measured using MacNab Criteria with the help of

Questionnaire

Assessing the patients in clinic

44 patients out of original 100 patients were followed up in the clinic 25 years later. 24 were from chemonucleolysis group and 20 from the surgical group.

According to MacNab criteria 62.5% had excellent or good results and 25% poor results in chemonucleolysis group and in surgery group 70% had excellent or good results and 10% poor results. Patients with poor result in Chemonucleolysis group consisted of: a) 1 had poor result post TKR, b) 4 were offered surgical enucleation subsequent to failed Chemonucleolysis though they did not seem to benefit from surgery and 1 out of these 4 also had fibromyalgia. c) 1 had poor result after sustaining fracture neck of femur. Poor results in surgical group were due to persistent back pain.

The results at 25 year follow-up have shown no statistically significant difference between the patients treated by either chemonucleolysis or surgery. The added benefit of using the chymopapain injection is that it is of lower cost. Chemonucleolysis should have a wider role in treatment of intervertebral disc herniation.