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Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XIII | Pages 14 - 14
1 Apr 2012
White A Dahabreh Z Ali Z Koch L Angus P
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BACKGROUND

In our institution we use the Winklestabile volar locking plate for operative fixation of distal radius fractures. This study aims to assess subjective and objective outcomes using this method of treatment.

METHODS

A total of 21 patients who underwent ORIF of distal radius fractures with the Winklestable plate in 2005 with a minimum follow up of 12 months were assessed using the Patient Rated Wrist Evaluation (PRWE) questionnaire and the Disabilities of the Arm Shoulder and Hand (DASH) score. Range of wrist movement (ROM), grip strength and pinchgrip strength were assessed by comparison with the unaffected wrist.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_IV | Pages 94 - 94
1 Mar 2012
Dahabreh Z Giannoudis P
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Aim of the study

To estimate and compare the cost implications of the first attempt of treatment of tibial fracture non-unions treated with either autologous bone grafting or BMP-7.

Materials and methods

Patients who were successfully treated for fracture non-unions between 2001 and 2005 were included. Exclusion criteria included infected non-union, children, malignancy, or chronic debilitating disease. The decision to use BMP-7 or autogenous bone graft was guided by the defect size and the surgeon's preferred method of treatment. Group 1 (n = 12) received iliac crest bone grafting (ICBG) and group 2 (n=15) received recombinant human Bone Morphogenetic Protein-7 (BMP-7).

The total costs incurred during treatment including hospital stay, implants, theatre costs, drains, antibiotics, investigations and outpatient appointments were documented and analysed.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_IV | Pages 24 - 24
1 Mar 2012
Dahabreh Z Howard M Campbell P Giannoudis P
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Aim

To compare a variety of commercially available bone graft substitutes (BGS) in terms of promoting adherence, proliferation and differentiation of osteoprogenitor cells.

Materials and methods

A fixed number of porcine mononuclear cells obtained from cancellous bone of the proximal femur was mixed with a standard volume of BGS and then cultured for one week in media followed by two weeks in osteogenic media. BGS included commercially available β-Tricalcium Phosphate (□-TCP), highly porous β-TCP, Hydroxyapatite/Tricalcium phosphate composite, calcium sulphate (CS), Hydroxyapatite (HA), Demineralised bone matrix (DBM), polygraft, and polymers (PGA, PLGA).

Staining for live/dead cells as well as scanning electron microscopy (SEM) were carried out on all samples to determine viability and cellular binding. Further outcome measures included alkaline phosphatase assays with normalisation for DNA content to quantify osteogenic potential. Negative (BGS without cells) and positive (culture expanded osteoprogenitors) control experiments were carried out in parallel to validate the results.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_II | Pages 71 - 71
1 Feb 2012
Dahabreh Z Dimitriou R Branfoot T Britten S Matthews S Giannoudis P
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The purpose of this study was to evaluate the efficacy of human recombinant osteogenic protein 1 (rhBMP-7) for the treatment of fracture non-unions and to estimate the health economics aspect of its administration.

Twenty-four patients (18 males, mean age 39.1 (range 18-79)) with 25 fracture non-unions were treated with rhBMP-7 in our institution (mean follow-up 15.4 months (range 6-29)). Successful completion of treatment was defined as the achievement of both clinical and radiological union. The cost of each treatment episode was estimated including hospital stay, theatre time, orthopaedic implants, drug administration, investigations, clinic attendances, and physiotherapy treatments. The total cost of all episodes up to the point of receiving BMP-7 and similarly following treatment with BMP-7 were estimated and analysed.

Of the 25 cases, 21 were atrophic (3 associated with bone loss) and 4 were infected non-unions. The mean number of operations performed prior to rhBMP-7 application was 3.4, including autologous bone graft in 9 cases and bone marrow injection in one case. In 21 out of the 25 cases (84%), both clinical and radiological union occurred. Mean hospital stay before and after receiving rhBMP-7 was 26.84 days per fracture and 7.8 days per fracture respectively. Total cost of treatments prior to BMP-7 was £346,117 [£13,844.68 per fracture]. Costs incurred following BMP-7 administration were estimated as £183,460 [£7,338.4 per fracture].

rhBMP-7 was used as a bone stimulating agent with or without conventional bone grafting with a success rate of 84% in this series of patients with persistent fracture non-unions. The average cost of its application was £7,338 [53.0% of the total costs of previous unsuccessful treatment of non –unions, p<0.05). Treating non-union is costly, but the financial burden could be reduced by early rhBMP-7 administration when a complicated or persistent non-union is present or anticipated. Therefore, this study supports the view that rhBMP-7 is a safe and power adjunct to be considered in the surgeon's armamentarium for the management of such difficult cases.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_III | Pages 65 - 65
1 Feb 2012
Dahabreh Z Sturdee S Templeton P Cullen E Giannoudis P
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Background

The aim of this study was to identify and quantify any benefits of early active treatment of paediatric femoral shaft fractures for patients, their families, and the hospital.

Patients and methods

Our protocol (1999-2002) uses flexible intramedullary nails for children older than five, early hip spica (within one week of injury) for the under five year olds, and external fixation for polytrauma (Early Active Group[EAG], n = 25). Prior to this (1999-2002), treatment consisted of late application of a hip spica (3-4 weeks following injury) or inpatient traction (Traditional Group [TG], n = 41). Outcome measures were length of hospital stay, degree of malunion, knee and hip movements, and leg length discrepancy. The financial burden to the family including waged and non-waged time lost, transport, childminder, and other extra costs were estimated. Hospital costs including inpatient stay, theatre, and implant costs were analysed.