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Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXVI | Pages 8 - 8
1 Jun 2012
Ali Z Murphy RKJ McEvoy L Bolger C
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Object

Giant thoracic discs (occupying more than 40% of the spinal canal) are a difficult surgical pathology. They are increasingly being recognized as or particular subset of thoracic disc pathology. It has been recommended that an aggressive surgical approach of open 2 level verteberectomy and instruments should be utilized.21 However Retropleural thoracotomy provides the shortest direct route to the anterior thoracic spine and avoids pleural cavity entry making it an ideal if infrequently used approach to access ventral thoracic and thoracolumbar spine abnormalities. We present a detailed description of our experience utilising this approach, for the treatment of Giant Thoracic discs without the need for vertebrectomy or instrumentation

Methods

A prospective cohort of patients with Giant thoracic discs operated on utilizing the mini open retropleural thoracotomy technique was used, intra-operative and post-operative complications and length of post-op stay. Functional outcome and pain scores, were also prospectively recorded using SF-36, Oswestry Disability Index (ODI), and visual analogue pain scores (VAS).


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_X | Pages 141 - 141
1 Apr 2012
Murphy R McEvoy L Ali Z Bolger C Young S
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The “Wallis” implant is indicated to stabilize symptomatic degenerative lumbar spine segments, relieving low back pain related to instability and thus delaying the need for irreversible, more invasive surgical management. The purpose of this study was to provide the first objective clinical evaluation of the “Wallis” lumbar dynamic stabilisation system.

An independent prospective observational study was carried out utlising SF-36, Oswestry Disability Index (ODI) and visual analogue pain scores (VAS). Surgical pathologies in which this technique was used, the intra-operative and post-operative complications and length of post-op stay were recorded. 102 patients underwent Wallis insertion between June 2007- May 2009, Median age 51.5 (range 28-108). 94% of patients completed questionnaires and were followed up at 3, 6 and 12 month time points. ODI scores decreased from pre-op 39 to 27 at twelve months (p<.0016). VAS back pain scores decreased 59 to 36 (p<0.0001). Leg scores decreased 50 to 39 (p<0.0002). SF 36 scores improved significantly, physical functioning 46 to 59, physical health 30 to 54 and social functioning 47 to 68. 50% of patients believed their health to be better 12 months post-op. Pre-operatively 28% of patients were employed and working with 26% off work due to back problems. This rate increased steadily with 42% employed at 12 months. Two implants were removed, one due to non-benefit with subsequent arthrodesis and one due to infection. One superficial wound infection occurred.

The Wallis dynamic stabilization system provides a superficial and easily reversible surgical procedure with a lower complication rate than conventional athrodesis. Used in patients with painful degenerative lumbar conditions their quality of life objectively approached values of the age- and gender-matched general population.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_X | Pages 51 - 51
1 Apr 2012
Collis RA Kelleher M McEvoy L Bolger C
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Several surgical options have been utilised to treat patients with back dominant lumbar disc disease. The purpose of our study was to compare the outcomes in patients who underwent lumbar fusion with an expandable interbody device (B-TWIN) using different surgical techniques (PLIF, TLIF or posterolateral screws alone)

Observational study, retrospective analysis of prospectively collected data. Patients underwent a single level lumbar fusion. Group A: PLIF with B-Twin cage; Group B: TLIF with B-Twin cage and unilateral pedicle screw fixation and Group C: bilateral posterolateral screw fixation alone.

Functional outcomes were assessed using: SF-36, Oswestry Disability Index (ODI), Distress and Risk Assessment Method scores (DRAM) and the visual analogue pain scores (VAS).

There were 32 patients, 24 female and 8 male. Average age was 45 (range 33-63). Average follow up was12 months (range 2-36). Level of spinal fusion was 2 L3/4, 11 L4/5 and 13 L5/S1. Mean hospital stay was 5.8 days.

VAS improved in all 3 groups A 5.83 – 5; B 8 – 4.83; C 5.71 – 2.3.

ODI improved in all 3 groups A 0.5 – 0.35; B 0.51 – 0.44, C 0.42 – 0.16.

There was no statistical difference on comparison of the three groups.

There were no operative complications. One patient broke her interdody device during a all in the first post-operative week requiring a subsequent procedure.

Lumbar interbody fusions can safely be performed using an expandable interbody device. Good functional outcomes can be achieved in the majority of well selected patients


Orthopaedic Proceedings
Vol. 92-B, Issue SUPP_I | Pages 211 - 211
1 Mar 2010
Harris I Yong S McEvoy L Thorn L
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We aimed to examine the influence of nursing home residency on mortality after sustaining an acute hip fracture in patients presenting to a metropolitan trauma centre. A prospective study of all adults aged 65 years and over who presented to a single tertiary referral hospital for management of a fracture of the proximal femur between July 2003 and September 2006. Residential status was obtained at admission. Patients were followed up to September 2007. Relative risk values for mortality were calculated comparing nursing home residents with non-nursing home residents. Survival analysis was performed.

Relative risk of death was higher in nursing home patients compared to non-nursing home patients. This was particularly so in the first 30 days (RR 1.9). Survival analysis showed that 25% of patients in the nursing home group died by 96 days post-injury, compared with 435 days post-injury in the non-nursing home group. The age-adjusted hazard ratio for death in nursing home patients was 1.5 (95% CI: 1.1–2.1), however the effect of nursing home status decreased over the first 12–24 months.

Nursing home residence confers an increased risk of death following hip fractures, especially in the immediate post-injury period. However, the relative risk of death decreased over time. This study provides some indication of the mortality risk in an easily definable population, without requiring an alternative assessment of comorbidities.


Orthopaedic Proceedings
Vol. 90-B, Issue SUPP_III | Pages 448 - 448
1 Aug 2008
Nagaria J McEvoy L Bolger C
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Objective: To review the clinical outcome of 37 consecutive patients undergoing C1– C2 transarticular fixation for patients with Rheumatoid Arthritis.

Design: Prospective Observational Study.

Methods: There were 37 patients at 2 centres. Age range was 37– 82 years. The time since diagnosis to treatment was 2– 23 years. Clinical presentation included suboccipital pain in 26/ 37 patients and neck pain in 29/37 patients. 22 patients had presented with myelopathy ( Ranawat grade II or III A). The preoperative imaging included Plain X Rays, CT scans and MRI scans. All patients underwent C1/ C2 transarticular screws ( Stealth guided) except 4 patients in which an aberrant course of the vertebral artery was identified.

Outcome measures: Functional outcome, Complications, Postoperative Neurological Status, Neck Disability index, Myelopathy disability index.

Results: 1 patient had died at 12 month followup. Neck pain improved in 22( 75%) of patients by > 5 points on the VAS. Suboccipital pain had improved in all patients. 17 patients (80%) improved following operation on the Ranawat Grading, 2 patient were worse and 3 patients remained the same.

> 70% patients reported improvement in neck disability index and > 50% patients reported improvement in myelopathy disability index.

Conclusions: C1/ C2 Transarticular fixation with spinal navigation is a safe technique for treating atlantoaxial instability in patients with Rheumatoid Arthritis. This study demonstrates improvement in all domains including neck disability, myelopathy scores and functional outcome.