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Bone & Joint Research
Vol. 3, Issue 4 | Pages 123 - 129
1 Apr 2014
Perry DC Griffin XL Parsons N Costa ML

The surgical community is plagued with a reputation for both failing to engage and to deliver on clinical research. This is in part due to the absence of a strong research culture, however it is also due to a multitude of barriers encountered in clinical research; particularly those involving surgical interventions. ‘Trauma’ amplifies these barriers, owing to the unplanned nature of care, unpredictable work patterns, the emergent nature of treatment and complexities in the consent process. This review discusses the barriers to clinical research in surgery, with a particular emphasis on trauma. It considers how barriers may be overcome, with the aim to facilitate future successful clinical research.

Cite this article: Bone Joint Res 2014;3:123–9.


Bone & Joint Research
Vol. 3, Issue 3 | Pages 69 - 75
1 Mar 2014
Parsons N Griffin XL Achten J Costa ML

Objectives

To study the measurement properties of a joint specific patient reported outcome measure, a measure of capability and a general health-related quality of life (HRQOL) tool in a large cohort of patients with a hip fracture.

Methods

Responsiveness and associations between the Oxford Hip Score (a hip specific measure: OHS), ICEpop CAPability (a measure of capability in older people: ICECAP-O) and EuroQol EQ-5D (general health-related quality of life measure: EQ-5D) were assessed using data available from two large prospective studies. The three outcome measures were assessed concurrently at a number of fixed follow-up time-points in a consecutive sequence of patients, allowing direct assessment of change from baseline, inter-measure associations and validity using a range of statistical methods.


Bone & Joint Research
Vol. 2, Issue 10 | Pages 227 - 232
1 Oct 2013
Kearney RS Parsons N Costa ML

Objectives

To conduct a pilot randomised controlled trial to evaluate the feasibility of conducting a larger trial to evaluate the difference in Victorian Institute of Sports Assessment-Achilles (VISA-A) scores at six months between patients with Achilles tendinopathy treated with a platelet-rich plasma (PRP) injection compared with an eccentric loading programme.

Methods

Two groups of patients with mid-substance Achilles tendinopathy were randomised to receive a PRP injection or an eccentric loading programme. A total of 20 patients were randomised, with a mean age of 49 years (35 to 66). All outcome measures were recorded at baseline, six weeks, three months and six months.


Bone & Joint Research
Vol. 2, Issue 10 | Pages 210 - 213
1 Oct 2013
Griffin XL McArthur J Achten J Parsons N Costa ML

Fractures of the proximal femur are one of the greatest challenges facing the medical community, constituting a heavy socioeconomic burden worldwide. Controversy exists regarding the optimal treatment for independent patients with displaced intracapsular fractures of the proximal femur. The recognised alternatives are hemiarthroplasty and total hip replacement. At present there is no established standard of care, with both types of arthroplasty being used in many centres. The principal advantages of total hip replacement are a functional benefit over hemiarthroplasty and a reduced risk of revision surgery. The principal criticism is the increased risk of dislocation. We believe that an alternative acetabular component may reduce the risk of dislocation but still provide the functional benefit of total hip replacement in these patients. We therefore propose to investigate the dislocation risk of a dual-mobility acetabular component compared with standard polyethylene component in total hip replacement for independent patients with displaced intracapsular fractures of the proximal femur within the framework of the larger WHiTE (Warwick Hip Trauma Evaluation) Comprehensive Cohort Study.

Cite this article: Bone Joint Res 2013;2:210–13.


Bone & Joint Research
Vol. 2, Issue 10 | Pages 206 - 209
1 Oct 2013
Griffin XL McArthur J Achten J Parsons N Costa ML

Fractures of the proximal femur are one of the greatest challenges facing the medical community, constituting a heavy socioeconomic burden worldwide. Controversy exists regarding the optimal treatment for patients with unstable trochanteric proximal femoral fractures. The recognised treatment alternatives are extramedullary fixation usually with a sliding hip screw and intramedullary fixation with a cephalomedullary nail. Current evidence suggests that best results and lowest complication rates occur using a sliding hip screw. Complications in these difficult fractures are relatively common regardless of type of treatment. We believe that a novel device, the X-Bolt dynamic plating system, may offer superior fixation over a sliding hip screw with lower reoperation risk and better function. We therefore propose to investigate the clinical effectiveness of the X-bolt dynamic plating system compared with standard sliding hip screw fixation within the framework of a the larger WHiTE (Warwick Hip Trauma Evaluation) Comprehensive Cohort Study.

Cite this article: Bone Joint Res 2013;2:206–9.


Bone & Joint Research
Vol. 2, Issue 9 | Pages 200 - 205
1 Sep 2013
Amarasekera HW Campbell PC Parsons N Achten J Masters J Griffin DR Costa ML

Objectives

We aimed to determine the effect of surgical approach on the histology of the femoral head following resurfacing of the hip.

Methods

We performed a histological assessment of the bone under the femoral component taken from retrieval specimens of patients having revision surgery following resurfacing of the hip. We compared the number of empty lacunae in specimens from patients who had originally had a posterior surgical approach with the number in patients having alternative surgical approaches.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_12 | Pages 18 - 18
1 Mar 2013
Griffin X Chaudhry M Parsons N McArthur J Costa M
Full Access

Autologous bone graft has been used in the treatment of complex bone defects for more than a century. Morbidity associated with the harvest of this bone graft has led orthopaedic surgeons to seek alternative therapies in the treatment of long bone non-unions.

The aim of this study was to determine whether the use of demineralised bone matrix as a bone healing adjunct improves clinical outcomes in adult patients with long bone non-union. A systematic search was carried out of the peer-reviewed English language literature to identify all relevant studies. The search strategy returned a total of 47 studies. Five of these studies were relevant to the research question. The studies were critically assessed and where appropriate combined in a meta-analysis.

4 non-comparative studies and one comparative study were reviewed. An overall estimate of the rate of union for the five studies was 86% (95%CI: 71–94%). The one comparative study demonstrated the relative risk (RR) of healing was not significantly better than in patients treated with autologous bone graft; RR=1.03 (95%CI 0.96–1.12).

There are limited data to support the use of demineralised bone matrix in the treatment of long bone non-union. Demineralised bone matrix is likely to be similarly effective to other treatments in the management of non-union. This study confirms the clinical and ethical requirements to proceed with a randomised controlled trial to test the effectiveness of this intervention.


Bone & Joint Research
Vol. 1, Issue 11 | Pages 310 - 314
1 Nov 2012
Griffin XL Achten J Parsons N Boardman F Griffiths F Costa ML

Fractures of the proximal femur are one of the greatest challenges facing the medical community, constituting a heavy socioeconomic burden worldwide. The National Hip Fracture Audit currently provides a framework for service evaluation. This evaluation is based upon the assessment of process rather than assessment of patient-centred outcome and therefore it fails to provide meaningful data regarding the clinical effectiveness of treatments. This study aims to capture data from the cohort of patients who present with a fracture of the proximal femur at a single United Kingdom Major Trauma Centre. Patient-centred outcomes will be recorded and provide a baseline cohort within which to test the clinical effectiveness of experimental interventions.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXVII | Pages 447 - 447
1 Sep 2012
Kulikov Y Parsons N Griffin D
Full Access

Introduction

There is an ever increasing demand for Randomised Controlled Trials (RCTs) in Trauma and Orthopaedic Surgery. Patient recruitment is often challenging. Among other factors, individual surgeon's preference is often quoted as a major obstacle. Collective equipoise based on present or imminent controversy in the expert medical community has been proposed as a solution, but could not help in everyday running of a trial. We wanted to develop a new trial eligibility assessment tool using the Collective Equipoise Principle.

Methods

We developed an online system that quantifies collective uncertainty among a group of surgeons for an individual clinical case in real time. This data was collected for patients in the UK Heel Fracture Trial (UK HeFT) as an independent research project. Both patients who agreed or not to take part in the trial were approached in six weeks follow up clinic to avoid interference with clinical course. For those who agreed, anonymous clinical data together with images (Xrays and CT) was published on a secure on line forum and registered surgeons were alerted via email and SMS. Surgeons submitted their opinion instantly via specially designed interactive voting scale. 80:20 ethical uncertainty distribution limit was applied using Subjective Logic to calculate an Uncertainty Index (UnIx) for every patient. This approach was evaluated as an eligibility assessment tool for RCTs.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXIX | Pages 151 - 151
1 Sep 2012
Prasthofer A Brewster M Parsons N Pattison G van der Ploeg I
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This study is a mid-term follow up of an original series of 51 babies treated with a modified Ponseti technique for idiopathic congenital talipes equinovarus using below-knee Softcast (easier to remove and hygienic)1 to determine whether this method is as effective as traditional above-knee plastering.

Methods

51 consecutive babies were treated (April 2003-May 2007) and serial Pirani scores were recorded. Dennis Browne Boots (DBB) were applied when correction was achieved and an Achilles tenotomy was performed if necessary to complete the correction. DBB were worn fulltime for 3 months and at night for 3.5 years.

Results

Of the original 51, 3 were lost to follow up and 3 were diagnosed with a neuromuscular condition and excluded. 45 patients, 34 boys and 11 girls were followed up for a mean of 55.3 months (range 36–85 months). Mean age at presentation was 16 days with a median Pirani score of 6.0 (5.5, 60). 75.7% required an Achilles tenotomy before DBB. Median Pirani score at tenotomy was 2.5 (2.0, 2.5). Time to boots (weeks) was mean 5.0 (4.2, 6.0) in the non-tenotomy group and 10.7 (9.8, 11.8) in the tenotomy group. 2 patients had residual deformity after plastering requiring surgery and there were 6 recurrences requiring surgery (4 tibialis anterior tendon transfers and 2 open releases). There appears to be a greater risk of operative intervention for girls and non-compliance with DBB. The estimate of 5-year (60 month) survival without surgery was 85% (96% CI; 70,99%).


Bone & Joint Research
Vol. 1, Issue 5 | Pages 86 - 92
1 May 2012
Amarasekera HW Roberts P Costa ML Parsons N Achten J Griffin DR Williams NR

Objectives

To study the vascularity and bone metabolism of the femoral head/neck following hip resurfacing arthroplasty, and to use these results to compare the posterior and the trochanteric-flip approaches.

Methods

In our previous work, we reported changes to intra-operative blood flow during hip resurfacing arthroplasty comparing two surgical approaches. In this study, we report the vascularity and the metabolic bone function in the proximal femur in these same patients at one year after the surgery. Vascularity and bone function was assessed using scintigraphic techniques. Of the 13 patients who agreed to take part, eight had their arthroplasty through a posterior approach and five through a trochanteric-flip approach.


Orthopaedic Proceedings
Vol. 93-B, Issue SUPP_IV | Pages 546 - 546
1 Nov 2011
McArthur J Costa M Griffin D Krikler S Parsons N Pereira G Prakash U Rai S Foguet P
Full Access

Introduction: Pain and mass lesions around hip resurfacing are reported with increasing frequency. The aetiology is unknown but reaction to metal wear debris and mechanical impingement have both been suggested. We are aware of a group of our patients with significant pain following resurfacing. We sought to correlate metal ion levels with X-ray findings and any local soft tissue reaction around the prosthesis.

Methods: Patients with significant groin pain following hip resurfacing were identified from routine clinics. Blood was tested for cobalt and chromium levels using inductively coupled mass spectrometry in all patients. Cup abduction angle and femoral stem version were estimated from plain radiographs. Patients underwent ultrasound scan (USS) of the affected hip joint. Bilateral prostheses were excluded to avoid confounding.

Results: 47 unilateral painful hip resurfacings (24 female) were identified. USS was performed in 42 patients and was abnormal in 25 (15 female). Abnormalities ranged from simple joint effusion with or without synovial thickening, through to cystic masses in the posterior joint and solid masses related to the ileopsoas tendon similar to the appearances previously described in pseudotumours.

A two sample t-test demonstrated cobalt and chromium ion levels were significantly higher in patients with abnormalities on USS (p=0.038, p=0.05 respectively), patients with normal USS were more likely to have a retroverted femoral component (p=0.01).

Discussion: We describe two groups of patients with a painful hip resurfacing: those with raised metal ions and local soft tissue reaction, and those with lower metal ions and no soft tissue reaction. The retroverted stems in the second group could cause an iatrogenic cam-type impingement. Metal ion levels are useful to guide further imaging. Raised levels should prompt investigation for a soft tissue abnormality with either USS or MRI, lower levels suggest investigation should look for mechanical impingement with imaging such as CT.