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Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXI | Pages 76 - 76
1 May 2012
S. M P. V
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Introduction

Getting the distal locking screw lengths right in volar locking plate fixation of distal radius is crucial. Long screws can lead to extensor tendon ruptures whereas short screws can lead to failure of fixation, especially if there is dorsal comminution of the fracture. The aim of our study was to determine the distal radius anatomy in relation to sagittal lengths and distance between dorsal bone edge and extensor tendons based on MRI scan.

Method

One hundred consecutive MRI scans of wrist were reviewed by two of the authors on two occasions. All MRI scans were performed for different wrist pathologies except distal radius fractures or tumours. An axial image, two cuts proximal to the last visible articular surface, was selected. Sagittal length at 5 different widths, maximum volar width, radial overhang over distal radio-ulnar joint and the distance between dorsal bone edge and extensor tendons were measured.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XII | Pages 12 - 12
1 Apr 2012
Morris S Chesser T
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Controversy exists whether a single proximal lateral tibia (PLT) locked plate is adequate for bicondylar fractures and whether the use of integral raft screws makes the use of bone graft less important.

57 consecutive patients who underwent reconstruction with a locked PLT plate were retrospectively reviewed. Radiographs were examined for operative reduction and subsequent loss of reduction.

55 patients were followed-up for an average of 27 weeks. Fractures were divided into unicondylar (Group 1, n=33) and bicondylar (Group 2, n=22). Union occurred in all patients, with no revisions or removal of metalwork at final follow-up. In 50 patients (88%), the fracture was reduced to within 2mm of anatomical. Articular surface collapse of >2mm occurred in three patients. Nine patients underwent bone grafting with no difference in outcome. A supplementary medial plate was used in three patients with a separate posteromedial fragment.

Except for a separate posteromedial fragment, the use of a single locked PLT plate for bicondylar fractures allows union to occur without failure. With the use of integral raft screws, the need for bone graft is questionable. The short-term radiological results and complication rate of PLT locked plating is excellent.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_23 | Pages 9 - 9
1 May 2013
Haque AU Berber R Shoaib A Amin M Abraham A
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Statement of Purpose

To compare the functional outcome of Distal Tibial Metaphyseal fracture treated with Circular frame compared vs. Locking Plate

Methods and Results

Distal Tibial Metaphyseal fractures were retrospectively identified over an 18 month period. Each fracture was assessed individually using radiographs. All paediatric, compound, tibial plateau and intra-articular fractures were excluded from the study. Other methods of fixation including intramedullary nailing were also excluded. The remaining fractures were assigned to either the circular frame fixation or the locking plate intervention group. Outcomes were assessed using radiographs for union dates and microbiology results for evidence of infection. Patients were followed up by postal questionnaires, which included a modified American Orthopaedic Foot and Ankle Score (AOFAS), the Olerud and Molander Score (O&M) and a custom questionnaire. The custom questionnaire asked about co-morbidities, smoking status and work days lost following surgery. After exclusions, 30 patients (Frame=15, Plate=15), were sent out questionnaires via post. We received completed questionnaires from 21 patients (Frame=11, Plate=10) giving us a response rate of 70%. Results show no difference in infection rates, skin necrosis, non-union or re-operation rates. There was also no significant difference in patient AOFAS and O&M scores at follow up.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_23 | Pages 1 - 1
1 May 2013
Welck MJ Calder P Eastwood D
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Purpose of Study

To see if the addition of a locking plate to FD rod fixation of osteogenesis imperfecta confers extra strength and allows earlier mobilisation.

Introduction

Osteogenesis imperfecta is a heterogeneous group of disorders with congenital osseous fragility. The goal of surgery is to minimise the incidence of fracture and correct deformity. The concept of multilevel osteotomies and intramedullary fixation with a non-extendable nail was popularised by Sofield and Millar in 1959. The Bailey Dubow telescoping nail was introduced in 1963. The Fassier-Duval (FD) telescoping nail is a more recent design inserted via smaller incisions, in conjunction with percutaneous osteotomies. However there are still problems. Often the medullary canal may be too narrow to harbour a nail of adequate size for the body. Furthermore they do not give significant rotational control, which is compounded by the elasticity of the soft tissues.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_29 | Pages 9 - 9
1 Aug 2013
Koller I Maqungo S
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Purpose of study:

Up to 30% of distal femur fractures treated with a locked plate have problems with union. Distal femur locked plates have become a very popular means of internal fixation because of their ability to provide stable distal peri-articular fixation. In spite of this enthusiasm however several studies have reported significant problems with healing. In the distal femur it is recognized that locked plate fixation may be too rigid if used in certain configurations preventing the essential micro movement required for biological healing. Implant failure may arise from rigid configurations that cause excessive hardware stress concentrations. In an attempt to address these problems longer plates and an increased working length have been proposed to reduce construct rigidity. The purpose of our study is to investigate whether an increased working length translates into improved healing.

Description of method:

We undertook a retrospective review of 92 consecutive cases performed at our institution from 2007–2010. Case notes and X-rays were reviewed. Working length, plate to fracture zone ratios and working length to fracture zone ratios were calculated. Union was assessed radiographically and clinically. Covariates of smoking, age, sex and fracture severity were included. Outcomes considered were union or established non-union. Delayed union was defined as union after 20 weeks.


Orthopaedic Proceedings
Vol. 104-B, Issue SUPP_13 | Pages 83 - 83
1 Dec 2022
Van Meirhaeghe J Vicente M Leighton R Backstein D Nousiainen M Sanders DW Dehghan N Cullinan C Stone T Schemitsch C Nauth A
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The management of periprosthetic distal femur fractures is an issue of increasing importance for orthopaedic surgeons. Because of the expanding indications for total knee arthroplasty (TKA) and an aging population with increasingly active lifestyles there has been a corresponding increase in the prevalence of these injuries. The management of these fractures is often complex because of issues with obtaining fixation around implants and dealing with osteopenic bone or compromised bone stock. In addition, these injuries frequently occur in frail, elderly patients, and the early restoration of function and ambulation is critical in these patients. There remains substantial controversy with respect to the optimal treatment of periprosthetic distal femur fractures, with some advocating for Locked Plating (LP), others Retrograde Intramedullary Nailing (RIMN) and finally those who advocate for Distal Femoral Replacement (DFR). The literature comparing these treatments, has been infrequent, and commonly restricted to single-center studies. The purpose of this study was to retrospectively evaluate a large series of operatively treated periprosthetic distal femur fractures from multiple centers and compare treatment strategies. Patients who were treated operatively for a periprosthetic distal femur fracture at 8 centers across North America between 2003 and 2018 were retrospectively identified. Baseline characteristics, surgical details and post-operative clinical outcomes were collected from patients meeting inclusion criteria. Inclusion criteria were patients aged 18 and older, any displaced operatively treated periprosthetic femur fracture and documented 1 year follow-up. Patients with other major lower extremity trauma or ipsilateral total hip replacement were excluded. Patients were divided into 3 groups depending on the type of fixation received: Locked Plating, Retrograde Intramedullary Nailing and Distal Femoral Replacement. Documented clinical follow-up was reviewed at 2 weeks, 3 months, 6 months and 1 year following surgery. Outcome and covariate measures were assessed using basic descriptive statistics. Categorical variables, including the rate of re-operation, were compared across the three treatment groups using Fisher Exact Test. In total, 121 patients (male: 21% / female: 79%) from 8 centers were included in our analysis. Sixty-seven patients were treated with Locked Plating, 15 with Retrograde Intramedullary Nailing, and 39 were treated with Distal Femoral Replacement. At 1 year, 64% of LP patients showed radiographic union compared to 77% in the RIMN group (p=0.747). Between the 3 groups, we did not find any significant differences in ambulation, return to work and complication rates at 6 months and 1 year (Table 1). Reoperation rates at 1 year were 27% in the LP group (17 reoperations), 16% in the DFR group (6 reoperations) and 0% in the RIMN group. These differences were not statistically significant (p=0.058). We evaluated a large multicenter series of operatively treated periprosthetic distal femur fractures in this study. We did not find any statistically significant differences at 1 year between treatment groups in this study. There was a trend towards a lower rate of reoperation in the Retrograde Intramedullary Nailing group that should be evaluated further with prospective studies. For any figures or tables, please contact the authors directly