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Orthopaedic Proceedings
Vol. 105-B, Issue SUPP_10 | Pages 43 - 43
1 Jun 2023
Mackey R Robinson M Mullan C Breen N Lewis H McMullan M Ogonda L
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Introduction

The purpose of this study is to evaluate the radiological and clinical outcomes in Northern Ireland of free vascularised fibular bone grafting for the treatment of humeral bone loss secondary to osteomyelitis. Upper limb skeletal bone loss due to osteomyelitis is a devastating and challenging complication to manage for both surgeon and patient. Patients can be left with life altering disability and functional impairment. This limb threatening complication raises the question of salvage versus amputation and the associated risk and benefits of each. Free vascularised fibula grafting is a recognised treatment option for large skeletal defects in long bones but is not without significant risk. The benefit of vascularised over non-vascularised fibula grafts include preservation of blood supply lending itself to improved remodeling and osteointegration.

Materials & Methods

Sixteen patients in Northern Ireland had free vascularised fibula grafting. Inclusion criteria included grafting to humeral defects secondary to osteomyelitis. Six patients were included in this study. Patients were contacted to complete DASH (Disabilities of the Arm, Shoulder and Hand) questionnaires as our primary outcome measure. Secondary outcome measures included radiological evaluation of osteointegration and associated operative complications. Complications were assessed via review of Electronic Care Record outpatient and in-patient documents.


Orthopaedic Proceedings
Vol. 105-B, Issue SUPP_2 | Pages 73 - 73
10 Feb 2023
Genel F Brady B Bossina S McMullan M Ogul S Ko P Vleeskens C Ly J Hassett G Huang A Penm J Adie S M. Naylor J
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There have been no studies assessing the acceptability of opioid tapering in the pre-arthroplasty setting. This qualitative study aimed to (1) explore barriers and facilitators to opioid tapering amongst patients with chronic non-cancer pain (CNCP), and (2) explore the similarities and differences in acceptability of opioid tapering between pre-arthroplasty patients and those participating in a biopsychosocial pain management program.

From January 2021, adult participants diagnosed with CNCP and taking opioids daily (any dose at time of screening for a period of 3 months) were recruited from either Fairfield Orthopaedic Hip and Knee Service (FOHKS) or Liverpool Hospital Pain Clinic (LHPC). Semi-structured interviews underwent thematic analysis using the framework method.

17 participants were recruited (FOHKS, n=9, mean age 67, female 77%, LHPC, n=8, mean age 54, female 63%). Both groups had participants who; (i) were reluctant to use opioid medications and used them out of “necessity”, (ii) were reluctant to taper due to concerns of worsening pain, quality of life, (iii) believed opioids were “toxins” causing bodily harm. Some FOHKS participants believed tapering should be a post-operative focus, whilst others believed tapering opioids pre-operatively will assist in post-op pain management. Few LHPC participants felt dependent/addicted to opioids, thus driving their intention to taper opioids.

The belief of tapering opioids causing worse pain was based on either previous experiences or concerns alone. Some FOHKS participants were more inclined to taper opioids if they were educated on the chronic and peri-operative risks associated with using opioids at time of arthroplasty.

Opioid users recognise the harms associated with chronic opioid use and believe they are used out of desperation for adequate analgesia, function, and quality of life. Tapering opioids in the pre-arthroplasty context may need coupling with patient education highlighting the importance of opioid tapering pre-operatively.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_13 | Pages 4 - 4
1 Nov 2019
Aujla RS Hansom D Rooney A Wheelton A Wilding C Barwell J Spacey K McMullan M Shaw C Hashim Z Akhtar MA Godsiff S
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Knee dislocations are a rare but serious cause of trauma. The aim of this study was to establish current demographics and injury patterns/associations in multi-ligament (MLI) knee injuries in the United Kingdom.

A National survey was sent out to trauma & orthopaedic trainees using the British Orthopaedic Trainees Association sources in 2018. Contributors were asked to retrospectively collect a data for a minimum of 5 cases of knee dislocation, or multi-ligament knee injury, between January 2014 and December 2016. Data was collected regarding injury patterns and surgical reconstructions.

73 cases were available for analysis across 11 acute care NHS Trusts. 77% were male. Mean age was 31.9 (SD 12.4; range 16–69). Mean Body Mass Index (BMI) was 28.3 (SD 7.0; range 19–52). Early (<3 weeks) reconstruction was performed in 53% with 9 (23%) patients under-going procedures for arthrofibrosis. Late (>12 weeks) reconstruction took place in 37% with one (3.7%) patient under-going arthroscopic arthrolysis. 4% had delayed surgery (3–12 weeks) and 5% had early intervention with delayed ACL reconstruction. For injuries involving 3 or more ligament injuries graft choices were ipsilateral hamstring (38%), bone-patella tendon-bone (20%), allograft (20%), contralateral hamstring (17%) and synthetic grafts in 18%.

Multi-ligament knee injuries are increasingly being managed early with definitive reconstructions. This is despite significant risk of arthrofibrosis with early surgery. Ipsilateral and contralateral hamstring grafts make up the bulk of graft choice however allograft (20%) and synthetic grafts (18%) remain popular.


Orthopaedic Proceedings
Vol. 97-B, Issue SUPP_5 | Pages 26 - 26
1 May 2015
McKenna R Breen N Madden M Andrews C McMullan M
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Background:

Developing a successful outpatient service for Ilizarov frame removal provides both patient and cost benefits. Misinformation and patient trepidation can be detrimental to recovery and influence choices. Education may play an important role in tailoring an efficacious service.

Objective:

Review Belfast Regional Limb Reconstruction frame removal practice, introduce changes aimed at improving care and evaluate effects.


Orthopaedic Proceedings
Vol. 97-B, Issue SUPP_5 | Pages 12 - 12
1 May 2015
Breen N Andrews C McMullan M Madden M Waite C
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Background:

Delay in fracture healing is a complex clinical and economic issue for patients and health services. Established non-unions are debilitating and often difficult to treat. Bone morphogenic proteins (BMPs) may play an important role in bone and cartilage formation, fracture healing and the repair of other musculoskeletal tissues. There is, however, a paucity of data on the use of BMPs in fracture healing and to date its role remains unclear.

Objectives:

To describe the 9-year experience of the Limb Reconstruction Team, Belfast in using BMP 2 for fracture non-unions.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_14 | Pages 2 - 2
1 Mar 2013
Firth G McMullan M Chin T Graham H
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Purpose of Study

Lengthening of the gastrocsoleus for equinus deformity is commonly performed in orthopaedic surgery. The aim of this study was to describe the precise details of each surgical procedure and assess each biomechanically in cadaver models.

Description of Methods

The surgical anatomy of the gastrocsoleus was investigated and standardized approaches were developed for the procedures described by Baumann, Strayer, Vulpius, Baker, Hoke and White. The biomechanical characteristics of these six procedures were then compared, in three randomized trials, in formalin preserved, human cadaver legs. The lengthening procedures were performed and a measured dorsiflexion force was applied across the metatarsal heads using a torque dynamometer. Lengthening of the gastrocsoleus was measured directly, by measuring the gap between the ends of the fascia or tendon.


Orthopaedic Proceedings
Vol. 93-B, Issue SUPP_III | Pages 310 - 310
1 Jul 2011
Craig J Damkat-Thomas L Bell P McMullan M Fogarty B
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Introduction: Open tibial fractures presenting to the 3 Northern Ireland trauma hospitals with over 36 months (2003–2006) were considered regarding the BAO/BAPS guidelines, which recommended joint orthopaedic/plastic management with definitive tissue coverage within 5 days.

Methods: Details of Gustillo-Anderson classification, method and timing of surgery, and complications were identified retrospectively from a regional database and patient notes.

Results: Of 111 patients with 115 fractures, 28 were Gustillo-Anderson grade 1, 21 were grade 2, 28 were grade 3a, 35 were grade 3b, and 3 were grade 3c. Grade 1 fractures were chiefly treated by IM nailing or cast. Most grade 2 and 3 injuries received IM nailing or external frames and primary closure within 5 days. Most grade 3b fractures were treated with external frames and tissue coverage after day 5, 46% having documented plastics referrals, and 20% receiving flaps All grade 3c fractures required amputation. Complications occurred in 42% of patients, mainly soft tissue infections (19%) and delayed union (10%) or non-union (12%). Only 42% of grade 3 injuries had documented referrals to plastics. Only 26% of patients were treated initially at the regional plastics unit (with orthpaedics on-site) but only 11% of patients required transfer for plastics input (chiefly for flaps).

Conclusions: Complications were common despite most patients meeting the guidelines regarding time to definitive surgery. With increasing Gustillo-Anderson grade the number of procedures increased and method of management changed for orthopaedic and plastics procedures. Many patients with Gustillo 3 injuries had no recorded referral to plastics.


Orthopaedic Proceedings
Vol. 90-B, Issue SUPP_III | Pages 457 - 457
1 Aug 2008
Mclorinan G Mcmullan M Cooke E Eames N Nolan P Hamilton A Patrick S
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Recent work has demonstrated that intra-operative contamination of spinal surgical wounds is relatively common. The most frequently isolated wound contaminants are Propionibacterium spp. and coagulase negative Staphylococcus spp. The aim of this study is to examine the efficacy of prophylactic antibiotics used for spinal surgery against bacterial contaminants isolated from intra-operative samples retrieved during spinal surgical procedures.

Intra-operative wound samples were taken from 94 patients undergoing spinal surgery. Samples including skin, subcutaneous tissue and wound washings were processed, inoculated onto agar and incubated under both aerobic and anaerobic conditions for a period of 2 weeks. Bacterial growth was identified using commercially available biochemical test galleries. Thirty-six bacterial isolates were identified. The predominant bacteria isolated included Propionibacterium spp. (n=21) and coagulase negative Staphylococcus spp. (n=15). Each bacterial isolate was tested for its susceptibility to antibiotics used as antimicrobial prophylaxis during spinal surgery. Antibiotic sensitivities were determined in accordance with National Committee for Clinical Laboratory Standards (NCCLS) guidelines.

The antibiotic that performed best against Staphylococcus spp. isolated was ciprofloxacin with 93% of isolates being susceptible to this antibiotic. Cefamandole and cefuroxime also performed well against Staphylococcus spp. isolates.

The antibiotic that performed best against Propioni-bacterium spp. isolates was cefamandole with 100% of isolates being susceptible. Cefuroxime and ciprofloxacin also performed well. The antibiotic that performed least well against bacterial isolates was erythromycin with only 76% of Propionibacterium spp. and 47% of Staphylococcus spp. exhibiting susceptibility.

The results of this study demonstrate that ciprofloxacin, cefuroxime and cefamandole are effective against the majority of Propionibacterium spp. and Staphylococcus spp. isolated from within the spinal wound during surgery. The use of erythromycin in the penicillin allergic patient is questioned and ciprofloxacin proposed as a possible alternative.


Orthopaedic Proceedings
Vol. 90-B, Issue SUPP_I | Pages 14 - 14
1 Mar 2008
McMullan M Glenn J O’Hagan S Mclorinan G Valanne S Marsh D Patrick S
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The first aim of the study was to investigate if bacteria were implicated in non-union of fractures of the tibia and femur, which had been treated with intramedullary nailing. The second aim was to evaluate the antimicrobial susceptibility of bacteria isolated from the retrieved intramedullary nails.

Forty intramedullary nails removed from tibial and femoral fractures were retrieved for the purpose of the study. Twenty of these nails were from fractures, which had successfully united and 20 were removed from fractures which had failed to unite prior to further operative intervention. There was no evidence of clinical infection in either of the two groups. The nails were subjected to ultrasound in the research laboratory to dislodge adherent bacteria formed as biofilm from the surface of the nail. Using both standard culture techniques and non-culture techniques (Immunofluorescence microscopy and PCR analysis) any dislodged bacteria were isolated and identified.

Isolated bacteria were tested for antimicrobial susceptibility to commonly used antibiotics in orthopaedic practice according to NCCLS guidelines.

Bacteria were detected in 15 out of 20 [75%] of the nails removed from fractures, which had developed a non-union, and in 5 out of 20 [25%] of fractures that had united, using both standard culture techniques and non-culture techniques. The bacterial isolates identified were mainly Staphylococcus epidermidis and the Gram-positive anaerobe Proprionibacterium acnes.

Vancomycin was the most effective antibiotic, with 2 out of 34 [6%] isolates being resistant. Erythromycin was the least effective, with 21 out of 34 [62%] isolates being resistant. Based on overall Minimum Bactericidal Concentrations at which 90% of all strains were killed, Vancomycin was the most active bactericidal agent tested followed in decreasing order by fucidic acid, ciprofloxacin, gentamicin, cefamandole and erythromycin.

Bacteria were detected more commonly in the fracture non-union group than in the union group [p< 0.01]. Of the antibiotic agents tested Vancomycin was the most effective and Erythromycin was the least effective.