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The Bone & Joint Journal
Vol. 104-B, Issue 6 | Pages 758 - 764
1 Jun 2022
Gelfer Y Davis N Blanco J Buckingham R Trees A Mavrotas J Tennant S Theologis T

Aims

The aim of this study was to gain an agreement on the management of idiopathic congenital talipes equinovarus (CTEV) up to walking age in order to provide a benchmark for practitioners and guide consistent, high-quality care for children with CTEV.

Methods

The consensus process followed an established Delphi approach with a predetermined degree of agreement. The process included the following steps: establishing a steering group; steering group meetings, generating statements, and checking them against the literature; a two-round Delphi survey; and final consensus meeting. The steering group members and Delphi survey participants were all British Society of Children’s Orthopaedic Surgery (BSCOS) members. Descriptive statistics were used for analysis of the Delphi survey results. The Appraisal of Guidelines for Research & Evaluation checklist was followed for reporting of the results.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_7 | Pages 7 - 7
1 May 2018
Rodger M Davis N Griffiths-Jones W Lee A
Full Access

A patient in his thirties developed synovitis with grade 4 chondrolysis and a stiff knee with a fixed flexion deformity between three and six years following PLC and PCL reconstruction using LARS (Ligament Augmentation and Reconstruction System, Corin). There was histologic evidence of foreign body reaction, the knee was painful, swollen and stiff.

We did not use any further LARS ligaments for soft tissue reconstructions of the kneein our practice. We commenced a recall programme for all 83 patients patients who underwent a soft tissue knee reconstruction using LARS. Of those contacted, 41 replied (49%) and 16 patients had symptoms (19%) and were investigated further with XRay, MRI and arthroscopy as indicated.

We discovered a total of five patients had histologically proven synovitis with foreign body reactions (6%), three of whom had life-changing symptomatic pain, swelling and stiffness with degenerate changes (3.6%). These patients had undergone various reconstructions, including a) PLC only, b) ACL and PCL, c) PCL and PLC and d) ACL, PCL and PLC. A further single case of massive bone cyst formation was noted, following PCL reconstruction using LARS (1.2%).


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_8 | Pages 45 - 45
1 May 2018
Jahangir N Umar M Rajkumar T Davis N Alshryda S Majid I
Full Access

Purpose of study

To review the treatment and outcomes of paediatric pelvic ring injuries in the UK

Methods and results

We performed a retrospective review of all pelvic fracture admissions to an English paediatric major trauma centre (MTC) from 2012 to 2016. A total of 29 patients were admitted with pelvic ring injuries with a mean age of 11 years (4- 16yrs). Road traffic accident was the mechanism in majority (72%), followed by fall from height (24%). Femoral shaft fracture was present in 5 (17%), head injury in 5 (17%), chest injuries in 5 (17%) and bladder injury in one child. 48% patients needed surgical procedures for fractures or associated injuries. We differentiated injuries according to the classification system of Torode and Zeig. 17% were Type A, 3% Type B, 48% Type C and 31% Type D. Almost all (93%) patients were treated conservatively. 51% of patients were allowed to mobilize full weight bearing after a period of bed rest. Non-weight bearing mobilization was recommended for fractures extending into the acetabulum, sacral fractures, unstable fracture patterns or associated fractures (neck of femur, femoral shaft and tibial shaft). Surgical fixation occurred in two patients. Both of these patients had significantly displaced Type D fractures. Only 44% of patients were back to sports at six months.


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_5 | Pages 21 - 21
1 Apr 2018
Banks S Smith J Leadbitter I Davis N Menke J Harvey A
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The design of every post-surgical knee arthroplasty study begins with the question “How soon after surgery should we assess the patients?”. The consensus, based primarily upon clinical rating systems, is that patients' scores reach a plateau roughly one year after surgery, and that observations performed at that time should be indicative of the long-term behavior of the joint. This is satisfactory for long-term studies of clinical performance. However, when new devices are introduced there is a need to determine as quickly as possible if the device performs as designed. Waiting a year or more after surgery to characterize a device's performance may place additional patients at risk of receiving an inferior design, or may delay widespread availability of a superior design. The goal of this study was to assess knee arthroplasty patients at 6–12 weeks, 6 months and 1 year after surgery to determine if their tibiofemoral kinematics changed during functional activities.

A total of 13 patients (7 female) were recruited from an ongoing clinical study to participate in this IRB-approved sub-study. All subjects received fixed-bearing, cemented, posterior-cruciate-retaining total knee arthroplasty of the same design from a single surgeon. Subjects averaged 69 years, 169cm tall, and 28 BMI. Subjects were studied at 6–12 weeks, at 6 months and at 12 months post-surgery, when they showed an average clinical flexion of 106°, 113° and 115°, respectively. Subjects' knees were observed using pulsed-flat-panel-fluoroscopy during three activities: lunging to maximum flexion with their foot placed on a 20cm step, kneeling to maximum flexion on a padded bench, and step-up/down on a 20cm step without progression of the contralateral limb. Model-image registration was used to register 3D geometric models of the implants with their radiographic projections based upon measured projection parameters. 3D knee kinematics were derived from the registered models, including joint angles and the antero-posterior translation of the medial and lateral condyles relative to the tibial baseplate.

There were no statistically significant changes in knee kinematics between the 6–12 week and 6 month, and 6-month and 12-month visits during the kneel and lunge activities (Table 1). Similarly, there were no pair-wise differences in tibial rotation or condylar translation during the dynamic step activity at any flexion angle (Figure 1).

Traditional thinking suggests studies of knee mechanics should be performed at least one year after surgery to make observations that are predictive of long-term joint function. In three different functional activities, we could not demonstrate significant changes in knee kinematics between 6–12 weeks and 6 months, nor between 6 months and 12 months. If these results can be confirmed in a larger subject cohort, and for a range of TKA designs, then functional follow-up studies of novel knee arthroplasty designs might be justified as early as 6–12 weeks after surgery, making it possible to accelerate confirmation devices are performing in patients as designed.

For any figures or tables, please contact the authors directly.


The Bone & Joint Journal
Vol. 100-B, Issue 1 | Pages 109 - 118
1 Jan 2018
Talbot C Davis N Majid I Young M Bouamra O Lecky FE Jones S

Aims

The aim of this study was to describe the epidemiology of closed isolated fractures of the femoral shaft in children, and to compare the treatment and length of stay (LOS) between major trauma centres (MTCs) and trauma units (TUs) in England.

Patients and Methods

National data were obtained from the Trauma and Audit Research Network for all isolated, closed fractures of the femoral shaft in children from birth to 15 years of age, between 2012 and 2015. Age, gender, the season in which the fracture occurred, non-accidental injury, the mechanism of injury, hospital trauma status, LOS and type of treatment were recorded.


The Bone & Joint Journal
Vol. 99-B, Issue 6 | Pages 788 - 792
1 Jun 2017
Bradley B Middleton S Davis N Williams M Stocker M Hockings M Isaac DL

Aims

Unicompartmental knee arthroplasty (UKA) has been successfully performed in the United States healthcare system on outpatients. Despite differences in healthcare structure and financial environment, we hypothesised that it would be feasible to replicate this success and perform UKA with safe day of surgery discharge within the NHS, in the United Kingdom. This has not been reported in any other United Kingdom centres.

Patients and Methods

We report our experience of implementing a pathway to allow safe day of surgery discharge following UKA. Data were prospectively collected on 72 patients who underwent UKA as a day case between December 2011 and September 2015.


Orthopaedic Proceedings
Vol. 97-B, Issue SUPP_2 | Pages 23 - 23
1 Feb 2015
Davis N Hourigan P Challinor H Clarke A
Full Access

Purpose of study and background

The use of NRB (Nerve Root Block) in radicular pain caused by stenosis is considered controversial in some centres, whereas its indication in radiculitis caused by disc herniation is widely accepted. Most studies evaluating NRB have combined disc herniation and stenosis pathologies in their inclusion criteria. This study explores the efficacy of NRB in different categories of stenosis: lateral recess, foraminal and combined.

Methods and results

68 patients underwent NRB by an ESP (Extended Scope Physiotherapist). 37 females, 31 males, mean age 75 years (range 23–87). Their stenosis was categorized as either lateral recess (n=43), foraminal (n=18), or combined (n=7) on MRI scan evaluation by 2 reviewers. Roland Morris Disability Questionnaire and Visual Analogue Scores were recorded pre-injection and 6 weeks post injection. 2 year final outcome was recorded with an ‘in-house’ questionnaire.

2 year outcome: Lateral recess stenosis: 37% had surgery, 40% required no further treatment. In foraminal stenosis: 17% had surgery, 50% required no further treatment. Combined pathology: 43% had surgery, 57% required no further treatment. Patients requiring no further treatment rated their 2 year outcome as satisfactory symptom control. Of the whole group 15% required a repeat injection, 7% were referred to pain clinic and one patient had died.


Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_2 | Pages 29 - 29
1 Jan 2014
Jagodzinski N Hughes A Davis N Butler M Winson I Parsons S
Full Access

Introduction:

Symptomatic tarsal coalitions failing conservative treatment are traditionally managed by open resection. Arthroscopic excision of calcaneonavicular bars have previously been described as has a technique for excising talocalcaneal bars using an arthroscope to guide an open resection. We describe a purely arthroscopic technique for excising talocalcaneal coalitions. We present a retrospective two-surgeon case series of the first eight patients (nine feet).

Methods:

Subtalar arthroscopy is performed from two standard sinus tarsi portals with the patient in a saggy lateral position. Coalitions are resected with a barrel burr after soft tissue clearance with arthroscopic shavers. Early postoperative mobilisation and non-steroidal anti-inflammatory drugs prevent recurrence of coalition. Outcome measures include restoration of subtalar movements, return to work and sports, visual analogue pain scales and Sports Athlete Foot and Ankle Scores (SAFAS). Follow-up ranges from 1 to 5.5 years.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_27 | Pages 8 - 8
1 Jul 2013
Islam SU Davis N
Full Access

Surgery for DDH is one of the common paediatric orthopaedics procedures in a tertiary care paediatrics hospital.

There are no uniformly agreed guidelines about the pre-operative work up related to blood transfusion in DDH surgery. This leads to lack of uniformity in practice, sometimes causes cancellations of operations on the day of surgery (due to no cross matched blood available) and on other occasions wastage of the cross matched blood.

The aims of our study were to know the incidence of perioperative blood transfusion in a series of DDH operations and to determine what types of operations/kids have more chances of needing a blood transfusion peri-operatively.

We included all children who had surgery for DDH between April 2009 and October 2012 in our institution. We found out which of these children had blood transfusion peri-operatively and reviewed their notes to determine any trends in transfusion requirements

165 children had operations for DDH during the study period. This included operations ranging from hip open reduction to Ganz osteotomy.

6 out of 165 (4%) were transfused blood. Children needing blood transfusion tended to be older and had multiple hip operations previously. Only 3 (2 during Ganz and 1 during bilateral hip reconstruction) of these 6 children needed intra-operative blood transfusion. None of the under 4 years old children needed intra-operative blood transfusion.

We conclude that children for unilateral primary hip operations for DDH do not need pre operative blood cross match. A group and save is enough in these cases.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_25 | Pages 9 - 9
1 May 2013
Behman A Davis N
Full Access

The Ponseti method has been proven to be the gold standard of treatment for clubfoot. The question however remains about the treatment of atypical and complex feet with this method. The Ponseti technique has been used to treat all clubfeet at the our institution for the past 10 years.

We interviewed 70 patients (114 affected feet) ages 5–9 regarding the current state of their clubfoot using the 10 item Disease Specific Instrument (DSI) developed by Roye et al. Of these, 16 patients had a complex foot defined by a transverse medial crease. The DSI scores from all patients were transformed onto a 100 point scale and compared based on overall score as well as functional outcome and satisfaction.

There was no significant difference in the overall scores with a mean of 76.43 (sd= 21.1) in patients who did not have a complex deformity compared to a mean of 79.17 (sd= 19.4) in those who did have a complex foot (p=0.644). On the functional subscale the mean scores were 74.07 (sd=27.1) and 89.58 (sd=25.9) for patients who had non-complex and complex feet, respectively (p=0.474). Regarding satisfaction, the non-complex group had a mean score of 79.51 (sd=19.7) compared to the mean of 78.75 (sd=16.7) in the complex group (p=0.888).

Primary treatment with the Ponseti method achieves very successful correction of the clubfoot deformity with good outcome scores. Furthermore, even in patients with a complex deformity, the Ponseti method still achieves equally successful outcomes.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_18 | Pages 17 - 17
1 Apr 2013
Jagodzinski N Hughes A Davis N Butler M Winson I Parsons S
Full Access

Symptomatic tarsal coalitions failing conservative treatment are traditionally managed by open resection. Arthroscopic excision of calcaneonavicular bars have previously been described as has a technique for excising talocalcaneal bars using an arthroscope to guide an open resection. We describe an entirely arthroscopic technique for excising talocalcaneal coalitions and present a retrospective two-surgeon case series of the first eight patients (nine feet).

Outcome measures include restoration of subtalar movements, return to work and sports, visual analogue pain scales and Sports Athlete Foot and Ankle Scores (SAFAS). Follow-up ranges from 1 year to 5.5 years.

Subtalar movements were improved in all feet. Deformity was not always fully corrected but pain and SAFAS scores improved in all patients bar one. They all had a rapid return to good function apart from this same patient who required subsequent fusions. The posterior tibial nerve was damaged in one patient.

Minimal destruction of bone and soft tissues allows early mobilization and minimizes pain. We acknowledge the risk of neurological damage from any operative technique. Patient selection and preoperative planning are crucial. This series from two independent surgeons supports the feasibility and effectiveness of this technique.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_1 | Pages 146 - 146
1 Jan 2013
Ul Islam S Henry A Khan T Davis N Zenios M
Full Access

Introduction

Through the paediatric LCP Hip plating system, the highly successful technique of the locking compression plate used in adult surgery, has been incorporated in a system dedicated to paediatrics. The purpose of this study was to review the outcome of the paediatric LCP Hip plate use in children, both with and without neuromuscular disease, for fixation of proximal femoral osteotomy for a variety of indications.

Materials and methods

We retrospectively reviewed the notes and radiographs of all those children who have had Paediatric LCP Hip Plate for the fixation of proximal femoral osteotomy and proximal femur fractures in our institution, between October 2007 and July 2010, for their clinical progress, mobilization status, radiological healing and any complications.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXVII | Pages 317 - 317
1 Sep 2012
Peach C Davis N
Full Access

Introduction

It has been postulated that a mild clubfoot does better than a severe clubfoot no matter what treatment course is taken. There have been previous efforts to classify clubfoot. For units worldwide that use the Ponseti Method of clubfoot management, the Pirani scoring system is widely used. This scoring system has previously been shown to predict the number of plasters required to gain correction. Our study aimed to investigate whether the Pirani score gave an indication of longer-term outcome using tibialis anterior tendon transfer as an endpoint.

Methods

A prospectively collated database was used to identify all patients treated in the Ponseti clinic at the Royal Manchester Children's Hospital between 2002 and 2005 with idiopathic clubfoot who had not received any treatment prior to their referral. Rate of tibialis tendon transfer as well as the patient's presenting Pirani score were noted. Feet were grouped for analytical purposes into a mild clubfoot (Pirani score <4) and a severe clubfoot (Pirani score 4) category depending on initial examination. Clinic records were reviewed retrospectively to identify patients who were poorly compliant at wearing boots and bars and were categorised into having “good” or “bad” compliance with orthosis use.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXIV | Pages 14 - 14
1 Jul 2012
Islam SU Henry A Khan T Davis N Zenios M
Full Access

Through the paediatric LCP Hip plating system (Synthes GmBH Eimattstrasse 3 CH- 4436 Oberdorff), the highly successful technique of the locking compression plate used in adult surgery, has been incorporated in a system dedicated to pediatrics. We are presenting the outcome of the paediatric LCP hip plating system used for a variety of indications in our institution.

We retrospectively reviewed the notes and radiographs of all those children who have had Paediatric LCP Plate for the fixation of proximal femoral osteotomy and proximal femur fractures in our institution, between October 2007 and July 2010, for their clinical progress, mobilization status, radiological healing and any complications.

Forty-three Paediatric LCP hip plates were used in forty patients (24 males and 13 females) for the fixation of proximal femoral osteotomies (n=40) and proximal femur fractures (n=3). The osteotomies were performed for a variety of indications including Perthes disease, developmental dysplasia of hip, Cerebral Palsy, Down's syndrome, coxa vara, Leg length discrepancy and previous failed treatment of Slipped Upper Femoral Epiphysis.

Twenty-five children were allowed touch to full weight bearing post operatively. Two were kept non-weight bearing for 6 weeks. The remaining 13 children were treated in hip spica due to simultaneous pelvic osteotomy or multilevel surgery for cerebral palsy.

All osteotomies and fractures radiologically healed within 6 months (majority [n=40] within 3 months). There was no statistically significant difference (p= 0.45) in the neck shaft angle between the immediately postoperative and final x-rays after completion of bone healing.

Among the children treated without hip spica, 1 child suffered a periprosthetic fracture. Of the children treated in hip spica, 2 had pressure sores, 3 had osteoporotic distal femur fractures and 2 had posterior subluxations requiring further intervention.

There were no implant related complications.

The Paediatric LCP Hip Plate provides a stable and reliable fixation of the proximal femoral osteotomy performed for a variety of paediatric orthopaedic conditions.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_IV | Pages 144 - 144
1 Mar 2012
Davis N Powell-Smith E Phillips S Hobby J Lowdon I
Full Access

Introduction

PIPJ replacement has become increasingly popular however, there is very little clinical data available apart from small studies and those from the originators of the prostheses. We present a review of our initial experience with the Acension(c) Pyro-carbon PIP joint.

Results

Data was collected from 62 joints in 39 patients with one patient lost to follow-up. Mean age was 61.6 years. 29 patients were female and 10 male. Mean follow up was 22.3 months (range 11 to 54). 7 patients or 11% needed further surgery. The majority were for stiffness with 3 operations for dislocation or component malposition. The total complication rate was 32%, again the biggest problem was stiffness. 4 joints have subluxed or dislocated, 2 had superficial infections. There was no statistical difference in the rate of complications compared to the operated finger or the pre-operative diagnosis.

Post-operatively patients had a mean fixed flexion deformity of 19° and flexed to 76° (58° arc). However patients undergoing surgery following trauma do not do as well as the other groups with a decrease in ROM of 33°.


Orthopaedic Proceedings
Vol. 93-B, Issue SUPP_II | Pages 201 - 201
1 May 2011
Loveridge J Gardner R Barnett A Davis N Dunkley A
Full Access

Suturing of portals following arthroscopic shoulder surgery is the standard method of closure, but may be unnecessary. We carried out a randomised controlled trial to compare patients whose arthroscopic portals were closed by suturing and those that were covered by a simple dressing. We randomised 60 patients undergoing diagnostic shoulder arthroscopy, arthroscopic subacromial decompression and arthroscopic acromio-clavicular joint excision.

At 10 to 12 days following surgery, patients attended the GP surgery for a wound check and removal of sutures as required. At 3 weeks and 3 months every patient was reviewed by a designated, blinded, observer and the wounds assessed. The patients completed a questionnaire including visual analogue scores to determine their satisfaction with wound appearance and any complications such as infection.

At 3 weeks and 3 months no patients had needed antibiotics with no wound erythema or signs of infection. The number of dressings needed was comparable in both groups (p=0.73). The difference in the level of patient satisfaction was not statistically significant in either group (p=0.46). The wound cosmesis score was not statistically different in either group (p=0.66)

We conclude that both closure techniques were equivalent but the non-suture technique is cheaper with lower morbidity. From our study there is no need to suture shoulder arthroscopy portal wounds


Orthopaedic Proceedings
Vol. 93-B, Issue SUPP_I | Pages 49 - 49
1 Jan 2011
Loveridge J Gardner R Barnett A Davis N Dunkley A
Full Access

Suturing of portals following arthroscopic shoulder surgery may be unnecessary. We carried out a randomised controlled trial to compare patients whose arthroscopic portals were closed by suturing and those that weren’t. We randomised 60 patients undergoing diagnostic shoulder arthroscopy, arthroscopic subacromial decompression and arthroscopic acromioclavicular joint excision.

At 10 to 12 days following surgery patients attended the GP surgery for a wound check and removal of sutures as required. At 3 weeks and 3 months every patient was reviewed by a designated, blinded, observer and the wounds assessed. The patients completed a questionnaire including visual analogue scores to determine their satisfaction with wound appearance and any complications such as infection.

At 3 weeks and 3 months no patients had needed antibiotics with no wound erythema or signs of infection. The number of dressings needed was comparable in both groups. The level of patient satisfaction was not statistically different in either group. (T-test 0.91, SD 15.16) The wound cosmesis score was not statistically different in either group. (T-test 0.29, SD 6.66)

We conclude that both closure techniques were equivalent but the non-suture technique is cheaper with lower morbidity. From our study there is no need to suture shoulder arthroscopy portal wounds


Orthopaedic Proceedings
Vol. 91-B, Issue SUPP_I | Pages 56 - 57
1 Mar 2009
Alonso J Davis N Harris R
Full Access

Introduction: Children with clubfoot treated by the Ponseti method of clubfoot management require anterior tibialis tendon transfer if there is persistent varus and supination deformity. However the size of bone is a determining factor in whether this transfer can be carried out. We have assesses the difference in the age at which the lateral cuneiform ossifies in normal feet compare with clubfeet

Methods: Foot x-rays of children less than 4 years old (AP view) carried out between 2003 and 2005 were obtained from the Radiology department Booth Hall Children’s Hospital. A total of 341 radiographs were analyzed. Exclusion criteria included: any condition affecting foot anatomy or weight bearing or any previous surgery (including surgery for clubfoot). The lateral cuneiform was measured with 1mm accuracy in the longest diameter.

Results: We analysed the size of the lateral cuneiform in patients with and without clubfoot in relation to age. In children without clubfoot there was a R2 value of 0.517, showing a positive correlation between age and size of the bone. In children with clubfoot, R2 value was 0.207 showing no correlation between age and ossification rate of the lateral cuneiform. In addition, we compare the size of the lateral cuneiform between patients with and without clubfoot at different ages. There was a significance difference in the level of ossification of the lateral cuneiform in all age groups. In addition, a greater number of patients with no ossification of the lateral cuneiform were found amongst the clubfoot group in all age groups up to the age of 36 months.

Conclusions: We have identified a delayed ossification in the lateral cuneiform in children with clubfoot when compared with normal feet. This delayed ossification should be taken into account when considering anterior tibialis tendon transfer for correction of clubfoot


The Journal of Bone & Joint Surgery British Volume
Vol. 89-B, Issue 4 | Pages 561 - 562
1 Apr 2007
DYER PJ DAVIS N


The Journal of Bone & Joint Surgery British Volume
Vol. 88-B, Issue 8 | Pages 1082 - 1084
1 Aug 2006
Dyer PJ Davis N

The Pirani scoring system, together with the Ponseti method of club foot management, was assessed for its predictive value.

The data on 70 idiopathic club feet successfully treated by the Ponseti method and scored by Pirani’s system between February 2002 and May 2004 were analysed. There was a significant positive correlation between the initial Pirani score and number of casts required to correct the deformity.

A foot scoring 4 or more is likely to require at least four casts, and one scoring less than 4 will require three or fewer. A foot with a hindfoot score of 2.5 or 3 has a 72% chance of requiring a tenotomy.

The Pirani scoring system is reliable, quick, and easy to use, and provides a good forecast about the likely treatment for an individual foot but a low score does not exclude the possibility that a tenotomy may be required.