Background

The cavovarus foot is a complex 3-dimensional deformity. Although a multitude of techniques are described for its surgical management, few of these are evidence based or guided by classification systems. Surgical management involves realignment of the hindfoot and soft tissue balancing, followed by forefoot balancing. Our aim was to classify the pattern of residual forefoot deformities once the hindfoot is corrected, to guide forefoot correction.

Background

Ankle and hindfoot fusion in the presence of large bony defects represents a challenging problem. Treatment options include acute shortening and fusion or void filling with metal cages or structural allograft, which both have historically low union rates. Impaction grafting is an alternative option.

Background

Tenosynovial giant cell tumour (TGCT) is a benign proliferative disease affecting synovial membranes. There are two forms, localised and diffuse, which although histologically similar are managed differently. It is locally invasive and is treated in most cases by operative excision. The aim of this study was to assess outcomes from the largest single-centre experience to date in patients with this condition.

Background

The complex deformities in cavovarus feet may be difficult to assess and understand. Weight-bearing CT (WBCT) is increasingly used to evaluate complex deformities. However, the bone axes may be difficult to calculate in the setting of severe deformity. Computer-assisted 3D-axis calculation is a novel approach that may allow for more accurate assessment of foot alignment / deformity. The aim of this study was to assess differences in measurements done manually on 2D slices of WBCT versus 3D computer models in normal and cavus feet.

Introduction

Recurrence after surgical correction of hallux valgus may be related to coronal rotation of the first metatarsal. The scarf osteotomy is a commonly used procedure for correcting hallux valgus but has limited ability to correct rotation. Using weightbearing computed tomography (WBCT), we aimed to measure the coronal rotation of the first metatarsal before and after a scarf osteotomy, and correlate these to clinical outcome scores.

Introduction

Severe, multiplanar, fixed, pantalar deformities present a challenge to orthopaedic surgeons. Surgical options include limb salvage or amputation. This study compares outcomes of patients with such deformities undergoing limb preservation with either pantalar fusion (PTF) or talectomy and tibiocalcaneal fusion (TCF), versus below knee amputation (BKA).

Introduction

Pes cavovarus is a foot deformity that can be idiopathic (I-PC) or acquired secondary to other pathology. Charcot-Marie-Tooth disease (CMT) is the most common adult cause for acquired pes cavovarus deformity (CMT-PC). The foot morphology of these distinct patient groups has not been previously investigated. The aim of this study was to assess if morphological differences exist between CMT-PC, I-PC and normal feet (controls) using weightbearing computed tomography (WBCT).

This study used the lunge test to measure the difference between ankle dorsiflexion with the knee flexed and extended in persons with and without foot and ankle pathology. This may help us devise a weight bearing test for GT.

Introduction:

Wound healing and poor bone healing are complications seen in patients who smoke and some surgeons prefer not to operate on smokers. However, self reporting of smoking by patients may be biased. This study compares self-reporting of smoking habits and cotinine levels in the urine of our patients.

Introduction

Bone Marrow Oedema Syndrome (BMOS) is an unusual and poorly understood condition. It commonly affects the hips and knees and is reported to have a tendency to recur. The foot and ankle are less frequently involved but nevertheless patients can be severely impaired. Only case reports of BMOS of the foot and ankle have been published.

The aim of this study is to evaluate the sites of occurrence, risk factors, efficacy of immobilisation, response to intravenous biphosphonates and local or remote recurrence over the following years.

Background

The focus on evidence-based medicine has led to calls for increased levels of evidence in surgical journals. The purpose of the present study was to review the levels of evidence in articles published in the foot and ankle literature and to assess changes in the level of evidence over a decade.

Introduction

The Z or “scarf” osteotomy was first described by Meyer in 1926 and then by Burutaran in 1976. It was later popularised by Weil in the USA and Barouk in Europe in the 1990's and is now an accepted technique that forms part of a surgeons' armamentarium. The theory of Diffusion of Innovations was described by Rogers in 1962 to explain how novel ideas are accepted into practice across different industries, including medicine. It has never previously been used to study the adoption of ideas in foot and ankle surgery.

Introduction

Calcaneal osteotomy is often performed together with other procedures to correct hindfoot deformity. There are various methods of fixation ranging from staples, headed or headless screws or more recently stepped locking plates. It is not clear if one method is superior to the other. In this series we compare the outcome of various methods of fixation with particular attention to the need for subsequent hardware removal.

Single stage total talectomy with tibio-calcaneal arthrodesis in adult patients has been rarely reported in the literature. In patients with severe rigid, unbraceable equinovarus deformities, talectomy can offer excellent correction.

We performed single stage total talectomy with tibiocalcaneal arthrodesis on 11 feet in 10 patients (6F; 5M) of average age 67 years (range 54–77 years). 6 patients had neuropathic deformity, 2 had failed fusion procedures and 2 had severe Rheumatoid hindfoot disease. The fusion was undertaken using a hindfoot nail and screws in 5 patients, plate and screws in 4 patients, a hindfoot nail in 1 and cancellous screws in 1 patient. All patients followed the standard post operative protocol and were reviewed at 2, 6 and 12 weeks and thereafter every 4 weekly till union. All patients were mobilised strictly non weight bearing for the first 6 weeks and thereafter, touch weight bearing was allowed with the leg in a protective cast. Full weight bearing was allowed once the fusion had consolidated.

Fusion was achieved in 7 feet (64%) at an average time of 17 weeks. In 4 patients, non-union persisted but they were pain free at latest review and would not consider further surgery. Average duration of follow-up was 20 months (range 6–24 months). All patients had stiff hindfeet with a jog of movement at the tibio navicular articulation. All patients had a stable, plantigrade, braceable foot and were community ambulators. All patients were satisfied with the outcome.

Total talectomy with tibiocalcaneal arthrodesis is a useful procedure to correct severe rigid equinovarus deformities in adults. The tibionavicular articulation forms a pseudarthrosis and retains a jog of movement. Retention of the head of the talus with talotibial arthrodesis is unnecessary. We recommend this procedure as a salvage option in this difficult problem.

Introduction

Debate remains which surgical technique should be used for ankle arthrodesis. Several open approaches have been described, as well as the arthroscopic method, using a variety of fixation devices.

Both arthroscopic and open procedures have good results with union rates of 93–95%, 3% malunion rate and patient satisfaction of 70–90%, although some report complication rates as high as 40%.

Introduction

Following recommendations in the NHS Plan, all Trusts in the UK now send copies of correspondence to patients as standard practice. It is not clear whether patients wish to receive such correspondence, nor whether this practices an additional workload on the NHS as patients seek clarification on the medical terminology used in their letters.

Introduction

There are approximately 1.2 million patients using orthotics in the UK costing the NHS in excess of £100 million per annum. Despite this, there is little data available to determine efficacy and patient compliance. There have been a few reports on patient satisfaction, which indicate that between 13-50% of patients are dissatisfied with their orthotics. Our aim was to evaluate patient reported satisfaction with orthotics prescribed and to investigate the reasons behind patient dissatisfaction.

Background: Non-operative treatment for plantar fasciitis varies widely and includes the use of night ankle-foot orthoses (AFO’s). Some studies have shown that this is more effective in the initial management of plantar fasciitis than anti-inflammatory therapy. During sleep the foot and ankle tend to assume a plantarflexed position, which results in tightness of the calf muscle group, accounting for the stiffness and pain experienced by patients as they take their first weight bearing steps in the morning. However, when the foot and ankle are kept in a dorsiflexed stretched position at night, stress relaxation occurs and the plantar fascia relaxes.

Aim: Compliance with night AFO’s that dorsiflex the foot/ankle has always been a problem. This study compares the effectiveness of a posterior AFO, which dorsiflexes the foot, with an anterior AFO, which maintains the foot in plantigrade, asking whether it is absolutely necessary to dorsiflex the foot and ankle during the night to avoid early morning pain and stiffness, or whether it is it sufficient just to maintain the foot in plantigrade.

Methods: 18 participants were recruited on a voluntary basis and at random from among those patients referred to the Orthotics department with plantar fasciitis to be provided with a night orthosis. The inclusion criterion was that the diagnosis was purely plantar fasciitis with no secondary diagnosis, symptoms or complications. Each participant was given a questionnaire to fill in; this evaluated how satisfied the participants were with the orthosis with regards to comfort, ease of use and appearance, and whether the pain in the foot was reduced and at what stage was it reduced. The two types of AFO’s used in this study were:

A posterior AFO that holds the foot in dorsiflexion. The amount of dorsiflexion could be adjusted.

Results: 67% of the participants confirmed that morning pain and stiffness was less after wearing the AFO; this included 78% of those that wore the anterior AFO and 56% of those that used the posterior orthosis. 56% of all participants reported that the orthoses were uncomfortable and disrupted sleep. The most uncomfortable was the posterior AFO (89%), as opposed to the anterior one (22%). Both types of orthoses were reported to be relatively easy to don and doff (89% anterior AFO and 78% posterior AFO). On a scale of 1 to 10, the participants were asked to grade the pain before starting the orthosis treatment regime, after 6 weeks of wearing the AFO and again 6 weeks later. On average, the anterior AFO reduced the pain from 7 to 2.1, while the posterior orthosis only reduced the pain from 8.1 to 6.7.

Conclusion: In general, plantar fasciitis night AFO’s are poorly tolerated orthoses, however, their use can be justified in that the pain levels are reduced. The anterior AFO seems to be more effective in achieving this, without dorsiflexing the foot/ankle beyond plantigrade. Thus, one could argue that there is no need to dorsiflex to achieve the goal. However, further investigation is necessary with a larger patient cohort.

In the belief that many of the barriers that patients face when deciding upon an ankle or hindfoot fusion procedure stem from inadequate information about the procedure and its outcomes, the novel concept of a “Fusion forum” has been developed: a nurse-led informal group meeting to facilitate patients’ understanding and perception of fusion procedures. The aims were to provide more in-depth information than it is possible to deliver during the limited time of an initial doctor-patient consultation, to get the patient to meet and question a guest (an expatient who has previously had a fusion procedure) and to allow patients time to reflect upon their choices.

The value of the fusion forum has been evaluated by a questionnaire which was completed by the first 48 patients who attended the forum. 96% (46/48) of respondents felt that the quality of information that they were given was excellent or good. No respondent thought that the information was unsatisfactory. Patients were asked how valuable they had found meeting the guest. Four patients did not respond to this question. All of the respondents thought that meeting another patient who had already undergone the procedure was excellent or good

The mechanics of setting up a foot and ankle fusion forum is discussed, along with the lessons learnt from the first cohort of patients. This process has been found to greatly increase patient understanding of arthrodesis. It has been found during the consent process in pre-admission clinic that patients demonstrate a more in-depth understanding of the operative procedure, a more comprehensive knowledge of what the whole process involves, as well as the relative risks and benefits and the expected time of recovery.

Introduction: The Distal metatarsal articular angle (DMAA) is a radiographic measure of orientation of the first metatarsal articular surface, it is frequently used in the management of hallux valgus. There is a great deal of conflict regarding accuracy, reproducibility and validity of the DMAA within the literature. This study aims to test the validity of the measurement of the DMAA from standard radiographs, to explore the trigonometric relationship of first metatarsal rotation and the DMAA and to assess inter-observer reliability.

Materials/Methods: 34 seperate dry cadaveric first metatarsal bones were mounted onto a customized light-box/protractor allowing controlled incremental changes in rotation and inclination. A series of 39 digital photographs were taken of each metatarsal in 5 degree increments of rotation between 30 degrees supination and 30 degrees pronation and 10, 20 and 30 degrees of inclination. Three reviewers performed blinded DMAA measurements from each image; the data was collated for statistical analysis.

Results: The data was analysed using a mixed effects linear model comparing the DMAA with rotation of the first metatarsal. A strong statistically significant trend of increasing score with increasing pronation is observed, the relationship of which is approximately linear. There is a strong effect of inclination, but the strength of this varies with rotation this is amplified at higher inclinations. Inter-observor error was noted in line with other studies, the linear relationship is maintained.

Discussion: This study has shown that the distal metatarsal articular angle varies significantly, in an almost linear pattern, with axial rotation of the first metatarsal. Inclination of the first metatarsal is also shown to affect the magnitude of the angle.

This study does not refute the distal metatarsal articular angle as an entity, but does confirm the inaccuracy of extrapolating the DMAA from plain AP radiographs.