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Orthopaedic Proceedings
Vol. 104-B, Issue SUPP_7 | Pages 92 - 92
1 Jul 2022
Jones CS Johansen A Inman D Eardley W Toms A Evans J
Full Access

Abstract

Introduction

In 2020, the National Hip Fracture Database (NHFD) was extended to capture data from patients with periprosthetic femoral fractures (PPFF) with plans to include these patients in Best Practice Tarif. We aimed to describe the epidemiology of PPFF in England and Wales, with a particular focus on fractures occurring around the femoral component of knee prostheses.

Methodology

This population-based observational cohort study utilised open-access data available from the NHFD. Patients aged over 60, admitted to an acute hospital in England or Wales with a PPFF, within the period 1st January 2020 to 31st December 2020 were included. The primary outcome was the incidence of PPFF in England and Wales. The secondary outcome was the treatment received.


Orthopaedic Proceedings
Vol. 104-B, Issue SUPP_7 | Pages 91 - 91
1 Jul 2022
Jones CS Johansen A Inman D Eardley W Toms A Evans J
Full Access

Abstract

Introduction

Inter-prosthetic femoral fractures (IPFF) are fractures occurring between ipsilateral hip and knee implants or fixation devices. In 2020, the National Hip Fracture Database (NHFD) was extended to capture data from patients with peri-prosthetic femoral fractures (PPFF), including those specifically with IPFF. This study aims to describe the epidemiology and treatment of IPFF in England and Wales.

Methodology

This population-based observational cohort study utilised open-access data available from the NHFD. Patients aged over 60, admitted to an acute hospital in England or Wales with an IPFF, within the period 1st January 2020 to 31st December 2020 were included. The primary outcome of this study was the incidence of IPFF in England and Wales. The secondary outcome was the treatment received.


Orthopaedic Proceedings
Vol. 104-B, Issue SUPP_7 | Pages 24 - 24
1 Jul 2022
Spolton-Dean C Burden E East J Toms A Bhamber N Waterson B
Full Access

Abstract

Introduction

OtisMed Shape Match ® patient specific implant cutting jigs were designed to place TKA in kinematic alignment (KA) rather than traditional mechanical alignment (MA). This product was withdrawn from the market in 2013.

It has been hypothesised that KA might lead to early implant failure. Initial evidence has not supported this.

We present 10 year outcome data for the largest single centre cohort to date.

Methodology

Between 2010 and 2013, 127 Shape Match® TKAs were implanted in 119 individuals.

Retrospective review of long leg post-operative radiographs assessed femoral mechanical anatomical angle (FMA), tibial mechanical angle (TMA), hip-knee-ankle angle (HKA), posterior tibial slope (PTS) and femoral component flexion.

Oxford Knee Scores (OKS), revision and further surgery rates were reviewed.


Orthopaedic Proceedings
Vol. 104-B, Issue SUPP_7 | Pages 26 - 26
1 Jul 2022
Michael C Salar O Bayley M Waterson B Toms A Phillips J
Full Access

Abstract

Background

Prosthetic joint infection (PJI) is a significant cause of morbidity and mortality following knee replacement surgery. Identifying the causative agent(s) and their antibiotic sensitivities is critical in determining the choice of treatment methods used and the likelihood of successful eradication. This study aimed to investigate:

Whether biopsy alone was superior to aspiration alone in specificity and sensitivity for diagnosing PJI following knee replacement

Whether biopsy identifies the same microbiological flora as aspiration

Methods

We identified consecutive patients passing through our knee infection Multi-Disciplinary Team meeting between December 2014 and March 2020. Data was collated data retrospectively using electronic records. Statistical analysis was performed using Stata (Timberlake, February 2020)


The Bone & Joint Journal
Vol. 98-B, Issue 11 | Pages 1479 - 1488
1 Nov 2016
Kalson NS Borthwick LA Mann DA Deehan DJ Lewis P Mann C Mont MA Morgan-Jones R Oussedik S Williams FMK Toms A Argenson JN Bellemans J Bhave A Furnes O Gollwitzer H Haddad FS Hofmann S Krenn V

Aims

The aim of this consensus was to develop a definition of post-operative fibrosis of the knee.

Patients and Methods

An international panel of experts took part in a formal consensus process composed of a discussion phase and three Delphi rounds.


The Bone & Joint Journal
Vol. 98-B, Issue 4 | Pages 437 - 441
1 Apr 2016
Middleton S Toms A

We explored the literature surrounding whether allergy and hypersensitivity has a clinical basis for implant selection in total knee arthroplasty (TKA). In error, the terms hypersensitivity and allergy are often used synonymously. Although a relationship is present, we could not find any evidence of implant failure due to allergy. There is however increasing basic science that suggests a link between loosening and metal ion production. This is not an allergic response but is a potential problem. With a lack of evidence logically there can be no justification to use ‘hypoallergenic’ implants in patients who have pre-existing skin sensitivity to the metals used in TKA.

Cite this article: Bone Joint J 2016;98-B:437–41.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_IX | Pages 20 - 20
1 Mar 2012
Kassam A Toms A Hopwood B Stroud R
Full Access

Purpose

To calculate the cost of investigation of a painful Total Knee Replacement (TKR) to the hospital trust and Primary Care Trust (PCT).

Method

28 patients, over a year period, with painful Total Knee replacements were collected. Costs were calculated only of those patients who had an improvement in their symptoms such that they no longer had a painful TKR. The numbers of appointments, number of serological and radiological investigations were calculated along with any further investigations such as aspirations and arthroscopies. Costs were calculated from hospital records and charges to the PCT. An average cost per patient of investigations was calculated