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Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_7 | Pages 10 - 10
8 May 2024
Nanavati N Davies M Blundell C Flowers M Chadwick C Davies H
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Introduction

The current treatment for Freiberg's osteochondrosis centres around either: simple debridement or debridement osteotomy. The main principle of the osteotomy is to rotate normal articular cartilage into the affected area. We recommend the use of CT scanning to delineate the amount of available, unaffected cartilage available to rotate into the affected space.

Methods

We retrospectively reviewed 32 CT scans of new Freiberg's diagnoses in Sheffield over a 10 year period using the PACS system. We identified the sagittal CT slice that displayed the widest portion of proximal articular margin of the proximal phalanx and measured the diseased segment of the corresponding metatarsal head as an arc (in degrees). This arc segment was divided by 360°. This gave a ratio of the affected arc in the sagittal plane.


Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_7 | Pages 20 - 20
8 May 2024
Eyre-Brook A Ring J Gadd R Davies H Chadwick C Davies M Blundell C
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Introduction

Ankle fractures in the elderly are an increasing problem with our aging population. Options for treatment include non-operative and operative with a range of techniques available. Failure of treatment can lead to significant complications, morbidity and poor function. We compared the outcomes of two operative techniques, intramedullary hindfoot nailing (IMN) and fibular-pro-tibia fixation (FPT). This is the largest analysis of these techniques and there are no comparative studies published.

Method

We retrospectively reviewed patients over the age of 60 with ankle fractures who were treated operatively between 2012 and 2017. We identified 1417 cases, including 27 patients treated with IMN and 41 treated with FPT. Age, sex, co-morbidities and injury pattern were collected. Primary outcome was re-operation rate. Secondary outcomes included other complications, length of stay and functional status.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_21 | Pages 19 - 19
1 Dec 2017
Goldberg A Glazebrook M Daniels T de Vries G Pedersen M Younger A Singh D Blundell C Sakellariou A Baumhauer J
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Introduction

Studies have compared outcomes of first metatarsophalangeal joint (MTPJ1) implant hemiarthroplasty and arthrodesis, but there is a paucity of data on the influence of patient factors on outcomes. We evaluated data from a prospective, RCT of MTPJ1 implant hemiarthroplasty (Cartiva) and arthrodesis to determine the association between patient factors and clinical outcomes.

Methods

Patients ≥18 years with Coughlin hallux rigidus grade 2, 3, or 4 were treated with implant MTPJ1 hemiarthroplasty or arthrodesis. Pain VAS, Foot and Ankle Ability Measure (FAAM) Sports and ADL, and SF-36 PF scores were obtained preoperatively, and at 2, 6, 12, 24, 52 and 104 weeks postoperatively. Final outcomes, MTPJ1 active peak dorsiflexion, secondary procedures, radiographs and safety parameters were evaluated for 129 implant hemiarthroplasties and 47 arthrodeses. Composite primary endpoint criteria for clinical success included pain reduction ≥30%, maintenance/improvement in function, and no radiographic complications or secondary surgical intervention at 24 months. Predictor variables included: grade; gender; age; BMI; symptom duration; prior MTPJ1 surgery; preoperative hallux valgus angle, ROM, and pain. Two-sided Fisher's Exact test was used (p< 0.05).


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_21 | Pages 17 - 17
1 Dec 2017
Davies H Blundell C Daniels T Glazebrook M Baumhauer J Younger A Le I Pedersen E
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Introduction

A randomized clinical trial of first metatarsophalangeal (MTP) joint hemiarthroplasty with a synthetic cartilage implant demonstrated equivalent pain, function and safety outcomes to first MTP joint arthrodesis at 2 years. The implant cohort continues to be followed under an extension of the original study and we report on prospectively determined 5+ year outcomes for subjects assessed to date.

Methods

Patients treated with hemiarthroplasty implant as part of the previously mentioned trial are eligible for enrollment in the extended study (n=135). At the time of this report, 57 patients had reached the 5+ years postoperative time point, of which 5 were lost to follow-up. The remaining 52 patients with mean age of 58.5 (range, 38.0–0.0) underwent physical examination, radiographic evaluation, assessment of implant survivorship and collection of patient completed VAS pain, and Foot and Ankle Ability Measure (FAAM) sports subscale and activities of daily living (ADL) subscale scores. Mean follow-up is 5.8 (range, 4.8–8.4) years.


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_21 | Pages 6 - 6
1 Dec 2017
O'Dowd D Brewer P Davies M leese K Chadwick C Howard D Blundell C
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Introduction

Standard teaching of dislocated ankles was always reduce then x-ray. However the 2016 BOAST guidelines stated “Reduction and splinting should be performed urgently for clinically deformed ankles. Radiographs should be obtained before reduction unless this will cause an unacceptable delay”. We aimed to audit our practice against the BOAST guidelines and look at time from attendance to reduction.

Methods

We retrospectively reviewed all case notes of patients admitted via A&E at the Northern General Hospital with a fractured ankle between August 2016 and January 2017. Time of arrival, time to x-ray and time to reduction were recorded in a database for analysis.


Orthopaedic Proceedings
Vol. 97-B, Issue SUPP_14 | Pages 26 - 26
1 Dec 2015
Baumhauer J Singh D Glazebrook M Blundell C Wansbrough G de Vries G Le I Nielson D Petersen E Sakellariou A Solan M Younger A Daniels T
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Patients with advanced stage hallux rigidus from 12 centers in Canada and the UK were randomized (2:1) to treatment with a small (8/10 mm) hydrogel implant (Cartiva) or 1st MTP arthrodesis. VAS pain scale, validated outcome measures (FAAM sport scale), great toe active dorsiflexion motion, secondary procedures, radiographic assessment and safety parameters were evaluated.

236 patients were initially enrolled, 17 patients withdrew prior to randomization, 17 patients withdrew after randomization and 22 were non-randomized training patients, leaving 152 implant and 50 arthrodesis patients. Standard demographics and baseline outcomes were similar for both groups.

Mean VAS pain scores decreased from 6.8 and 6.9 respectively for the implant and arthrodesis groups from baseline to 1.4 and 0.7 at 24 months. Similarly, the FAAM sports score improved significantly from baseline levels of 37 and 36 to 24 months level of 77 and 82 respectively for the implant and arthrodesis groups. First MTP active dorsiflexion motion improved an average of 4° at 3 months after implant placement and was maintained at 24 months.

Secondary surgeries occurred in 17 (11.2%) implant patients and 6 (12.0%) arthrodesis patients. Fourteen (9.2%) implants were removed and converted to arthrodesis and 6 (12.0%) arthrodesis patients had painful hardware requiring removal. There was no case of implant fragmentation, wear, or bone loss. Analysis of a single composite endpoint utilizing the three primary study outcomes (pain, function, and safety) showed statistical equivalence between the2groups.

Conclusion

In patients requiring surgery for advanced stage hallux rigidus, treatment with a small synthetic cartilage implant resulted in comparable clinically important pain relief and functional outcomes compared to 1st MTP arthrodesis while preserving and often improving great toe motion. Secondary surgical intervention was similar in the implant and arthrodesis groups. Revision from a small implant plug to arthrodesis can be performed if needed.


Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_17 | Pages 25 - 25
1 Nov 2014
Kakwani R Haque S Chadwick C Davies M Blundell C
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Introduction:

The surgical treatment of intractable metatarsalgia has been traditionally been an intra-articular Weil's type of metatarsal osteotomy. In such cases, we adopted the option of performing a minimally invasive distal metaphyseal metatarsal ostetomy (DMMO) to decompress the affected ray. The meta-tarsophalangeal joint was not jeopardised. We present our outcomes of Minimally Invasive Surgery for metatarsalgia performed at our teaching hospital.

Material and methods:

This is a multi-surgeon consecutive series of all the thirty patients who underwent DMMO. The sex ratio was M: F- 13:17. Average age of patients was 60 yrs. More than one metatarsal osteotomy was done in all cases. The aim was to try and decompress the affected rays but at the same time, restore the metatarsal parabola.

It was performed under image-intensifier guidance, using burrs inserted via stab incisions. Patients were encouraged to walk on operated foot straight after the operation; the rationale being that the metatarsal length sets automatically upon weight bearing on the foot. Outcome was measured with Manchester-Oxford Foot Questionnaire's (MOXFQ's) and visual analogue pain score (VAS). Minimum follow up was for six months.


Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_2 | Pages 38 - 38
1 Jan 2014
Gadd R Barwick T Paling E Davies M Blundell C
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Introduction:

Prompted by the success of hip and knee arthroplasty, total ankle replacement (TAR) has become increasingly popular as a treatment for end stage arthritic complaints of the ankle. Glazebrook et al proposed a three grade classification of complications to assist prediction of early implant failure. We have compared the experience of a tertiary referral centre in the UK to Glazebrook's proposed system.

Method:

A retrospective review of the Sheffield Foot and Ankle Unit TAR database was performed from 1995 to 2010. All complications were recorded and categorised using Glazebrook's proposed system. Glazebrook described eight main complications of increasing severity. Low grade complications; Post operative bone fracture, Intra-operative bone fracture and wound healing problems were very unlikely to lead to revision. Medium grade complications; technical error and subsidence, lead to failure < 50% of the time. High grade complications; deep infection, aseptic loosening and implant failure lead to revision > 50% of the time.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_21 | Pages 12 - 12
1 Apr 2013
Fox A Blundell C
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Introduction

The Mobility™ prosthesis [Depuy] is the most extensively used TAR in the UK, though there are few published results. We present our complete experience of the Mobility prosthesis in a diverse population.

Methods

From March 2005 to December 2009, 84 consecutive Mobility ankle replacements were performed by the senior author, in 79 patients (28 female, 51 male) with mean age 64.5 years (43–80). This complete cohort included the first and last cases with this implant. Mean follow-up was 50.1±18.2 months (range 14–86).

Patients with ankle replacements in situ, were reviewed clinically and radiologically. Clinical outcome measures were: AOFAS score, MOXFQ (adapted for the ankle), and VAS for pain. Post-operative radiographs were reviewed to assess component position and examine for zones of lucency.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XLIII | Pages 46 - 46
1 Sep 2012
Davies H Marquis C Price D Davies M Blundell C
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Locked plates confer angular stability across fusion sites, and as such are more rigid than either screws or intramedullary nails. This gives the advantage of reducing motion to enhance union rates and potentially allowing early weight bearing. The Philos plate (Synthes) is a contoured locking plate designed to fix humeral fractures but which also fits the shape of the hindfoot and provides strong low profile fixation. Its successful use for tibiotalocalcaneal (TTC) arthrodesis has been reported.

Our aim was to prospectively evaluate the use of the Philos plate in hindfoot arthrodesis Twenty-one hindfoot arthrodeses were performed using the Philos plate between Oct 2008 and Jan 2010. Patients were followed up for a minimum of 1 year and had preoperative and 6 monthly AOFAS hindfoot scores and serial radiographs until union. Overall there were 15 ankle fusions, 5 tibiotalocalcaneal fusions and 1 subtalar fusion. At 6 months there were 13 unions and 9 non-unions (4 ankle, 5 TTC) giving a non-union rate of 38% overall and 25% for ankle fusions in isolation. Mean AOFAS scores at 6 months were 74/100 for the union group and 47 for non-unions (chi squared p < 0.001). No patient in the non-union group went on to fuse within a year without further surgery. Both groups had similar case mixes including osteoarthritis, AVN of the talus and failed arthroplasty. They also had similar co-morbidities, rates of smokers and bone grafting.

Our conclusion is that the high non-union rates are probably due to the lack of compression conferred across the join by the Philos plate as there is no compression hole and we did not supplement the fixation with a lag screw. We recommend using locked plates for hindfoot arthrodesis only with additional compression.