Dislocation after total hip arthroplasty remains a primary concern among orthopaedic surgeons. Endeavors to decrease the incidence of dislocation, while maintaining limb function and mobility, have been painstakingly undertaken. Since their advent in the 1970s, dual mobility cups have proven again and again to be effective in reducing dislocation following ...

Background Muscle (M) and fasciocutaneous (FC) free flaps are frequently used options in the reconstruction of traumatic lower limb injuries. The use of one flap over another has remained the topic of controversy in the literature. With a large experience, we sought to evaluate key outcomes of M versus FC ...

BACKGROUND: Large (36- and 40-mm) femoral heads with highly crosslinked polyethylene liners were introduced to reduce the risk of dislocation after primary total hip arthroplasty (THA), but it is unclear whether the risk is reduced and whether there is osteolysis or liner fracture. QUESTIONS/PURPOSES: We therefore determined (1) the incidence ...

BACKGROUND: A prior review of catastrophic pole vaulting injuries from 1982 through 1998 revealed an average of 2.0 injuries per year, with 69% (1.38 per year) of the injuries secondary to athletes landing off the sides or back of the landing pad and 25% (0.5 per year) from athletes landing ...

OBJECTIVES: Compressive stress has been intentionally introduced into the overlay porcelain of zirconia-ceramic prostheses to prevent veneer fracture. However, recent theoretical analysis has predicted that the residual stresses in the porcelain may be also tensile in nature. This study aims to determine the type and magnitude of the residual stresses ...

Background and purpose Hip arthroplasty is an option for elderly patients with osteoporosis for the treatment of failure after fixation of trochanteric and subtrochanteric fractures, either as a total hip arthroplasty (THA) or as a hemiarthroplasty (HA). We analyzed the reoperation rate and risk factors for reoperation in a consecutive ...

OBJECTIVES:: To evaluate adjunctive compression plating leaving the previously unreamed inserted intramedullary nail (URIMN) in situ for treating a resultant diaphyseal tibial nonunion. DESIGN:: Retrospective study. SETTING:: Level 1 trauma center (University Hospital). PATIENTS/PARTICIPANTS:: Patients treated by URIMN for diaphyseal tibial fractures that developed an aseptic hypertrophic nonunion. INTERVENTION:: Dynamization ...

BACKGROUND: Many hospitals use ultraclean ventilation (UVC), also known as laminar airflow systems (LAF), in their operating rooms to decrease rates of surgical site infections (SSIs). However, the evidence for these systems is limited and the additional expenses for LAF are substantial. AIM: To determine the effectiveness of LAF to ...

Despite an increase in the number of experimental and numerical studies dedicated to spinal trauma, the influence of the rate of loading or displacement on lumbar spine injuries remains unclear. In the present work, we developed a bio-realistic finite element model (FEM) of the lumbar spine using a comprehensive geometrical ...

OBJECTIVES: The repair of skin defects in the head and neck region still poses a significant problem for many clinicians. Tissue expansion is described as a treatment option providing good color, texture, and thickness match of the expanded skin. Unfortunately, the complication rates for tissue expansion range from 0 to ...

ABSTRACT: BACKGROUND: Dermatofibrosarcoma protuberans (DFSP) is a soft tissue neoplasm of intermediate to lowgrade malignancy. Although metastasis rarely occurs, DFSP has a locally aggressive behavior with a high recurrence rate. In the head and neck area, resection involving a wide margin of healthy tissue can be difficult because of functional ...

Object The theoretical advantage of pars interarticularis repair over spinal fusion to correct pars defects is that the treatment is a direct osteosynthesis that preserves motion at the involved functional spinal unit. Several techniques and constructs have been used to achieve greater rigidity, but these techniques may risk entry into ...

Colles' fracture, a transverse fracture of the distal radius bone, is one of the most frequently observed osteoporotic fractures resulting from low energy or traumatic events, associated with low and high strain rates, respectively. Although experimental studies on Colles' fracture were carried out at various loading rates ranging from static ...

Background:  The Wellington Regional Plastic, Maxillofacial & Burns Unit based at Hutt Hospital provides comprehensive reconstructive services to central New Zealand with a population of 1.1 million. Free tissue transfer procedures in the Unit were audited to determine the indications and rate of usage in our population, our success and ...

We describe the results of 81 consecutive revision total hip replacements with impaction grafting in 79 patients using a collared polished chrome-cobalt stem, customised in length according to the extent of distal bone loss. Our hypothesis was that the features of this stem would reduce the rate of femoral fracture ...

The ideal form of fixation for displaced, extra-articular fractures of the distal tibia remains controversial. In the UK, open reduction and internal fixation with locking-plates and intramedullary nailing are the two most common forms of treatment. Both techniques provide reliable fixation but both are associated with specific complications. There is ...

ABSTRACT: Running has evolved throughout history from a necessary form of locomotion to an athletic and recreational pursuit. During this transition, our barefoot ancestors developed footwear. By the late 1970s, running popularity surged, and footwear manufacturers developed the running shoe. Despite new shoe technology and expert advice, runners still face ...

The purpose of this study was to compare the parameters of perioperative course and cost-effectiveness for patients with midshaft clavicle fractures treated by dynamic compression plates or locked compression plates.This retrospective, case-controlled study involved 54 patients with midshaft clavicle fractures who received dynamic compression plates (n=21) or locked compression plates ...

Background. The Jones fracture has been a topic of controversy ever since being first described by Sir Robert Jones himself in 1902. The aim of this review is to summarize the classification, management, outcome, and complications of this particular injury. Methods. The authors conducted a systematic review of the scientific ...

We present a novel approach to analyse the fracture of fibre-reinforced composites. Experimental results on mode I fracture of glass fibre and carbon fibre unidirectional laminates presented here and published by others in the open literature formed the basis for the analytical and numerical results presented. When details of the ...

OBJECTIVES: Report 20 years experience of bladder injuries after external trauma. METHODS: Gender, age, mechanism/location of damage, associated injuries, systolic blood pressure (SBP), Revised Trauma Score (RTS), Injury Severity Score (ISS), Trauma Injury Severity Score (TRISS), complications, and length of stay (LOS) were analyzed in a prospective collected bladder injuries AAST-OIS ...

OBJECTIVES:: The aim of this study was analyze modes of mechanical failure in a consecutive cohort of patients and establish possible risk factors. DESIGN:: This was a retrospective cohort study. SETTING:: The study was conducted at an academic level-1 trauma center. PATIENTS:: Twenty-nine patients (mean age 56 years, range 21-92; ...

INTRODUCTION: This study determined outcomes after temporary joint-spanning external fixation before internal fixation of open intra-articular distal humeral fractures. MATERIALS AND METHODS: A retrospective case analysis was done of all patients who were treated between 2000 and 2008 in 3 level I trauma centers with temporary joint-spanning external fixation before ...

Unicondylar knee arthroplasty (UKA) has become a popular alternative to total knee arthroplasty or high tibial osteotomy for unicompartmental knee conditions. This study investigated the effects of kinematics and femoral liftoff on the wear of fixed and mobile versions of a UKA design. The fixed bearing had lower wear than ...

BACKGROUND: State-level injury rates or fatality rates are sometimes used in studies of the impact of various safety programs or other state policies. How much does the metric used affect the view of relative occupational risks among U.S. states? This paper uses a measure of severe injuries (fatalities) and of ...

OBJECTIVES: This study was performed to determine (1) the incidence of humeral shaft fractures within the Medicare noncancer population, (2) the trends in utilization of humeral shaft fixation techniques by plate-and-screw devices and intramedullary nails, (3) differences in procedure times, and (4) the outcomes of individuals as measured by rate ...

Unreamed Intramedullary nailing and external fixation are 2 major treatments widely used in Gustilo grade III open tibial fractures, but the difference in effectiveness and complication remains controversial. We retrieved original publications of comparative studies from medical literature databases and selected 9 of them for a meta-analysis. Observation items include ...

: Continuous traction is capable of creating an optimal biological environment for bone healing which may finally compensate for the rapid distraction rate in distraction osteogenesis. This study was designed to investigate the response of distraction callus to continuous distraction at a rapid rate using a rabbit model of mandibular ...

: Surgical fixation of patella fractures is frequently indicated due to disruption of the quadriceps mechanism. Operative technique varies; however, failure rates can be high. The purpose of this study was to compare the effectiveness of various techniques for the fixation of patella fractures and the etiology of fixation failure. ...

PURPOSE. To compare the treatment outcome of Acutrak versus Herbert screw fixation for scaphoid non-union and delayed union. METHODS. Records of 132 patients who underwent Herbert screw fixation (n=61) or Acutrak screw fixation (n=71) with or without bone grafting for scaphoid non-union and delayed union by a single surgeon were ...

Background: More than 140 000 new cases of cancer are diagnosed annually in Canada, nearly half of which metastasize to bone. The implications for orthopedic oncology services are potentially huge. We reviewed the experience in a major Canadian orthopedic trauma centre treating long bone metastases. The primary aim was to ...

OBJECTIVE: The purpose of this study was to determine the association between time to initial debridement and infection rate in high-energy (grade III) open fractures of tibia. METHODS: All patients presenting with open fractures were included in the study. The inclusion criteria were Gustilo III A, B and C open ...

Background aims. Bone marrow-derived cells (BMDC) form a significant portion of regenerating epithelial tissue. The purpose of this study was to determine whether exogenous BMDC (containing stroma, stem and progenitor cells), introduced systemically or within the injury site, could enhance the injury repair response. Methods. Excisional wounds (10-mm diameter) were ...

OBJECTIVES: To determine if bioabsorbable pins can be used for stabilization of comminuted articular fragments in periarticular fractures with adequate quality of fixation, while eliminating the potential complications related to use of traditional implants. DESIGN: Multicenter retrospective review. SETTING: Level 1 trauma centers: Indianapolis, IN, and Tampa, FL. PATIENTS/PARTICIPANTS: Institutional ...

INTRODUCTION: Displaced fractures of the femoral neck in the elderly are best treated with arthroplasty. The type of arthroplasty to be used, either hemi- or total hip arthroplasty, remains controversial as total hip replacements potentially have a higher rate of dislocation. HYPOTHESIS: Dual mobility cups have a low dislocation rate ...

Total hip replacement has been a successful surgical intervention for over 50 years, with the majority of bearings using a polyethylene cup. Long-term failure due to osteolysis and loosening has been widely documented and alternative bearings have been sought. A novel carbon fiber-reinforced poly-ether ether ketone (CFR-PEEK) cup was investigated ...

The primary treatment for progressive first metatarsophalangeal (MTP) joint arthritis is arthrodesis. Multiple fixation types have been used to accomplish fusion including plating. There have been no published articles reporting the outcomes of these 4 plate and/or screw constructs. We present our experience with 138 first MTP joint fusions using ...

OBJECTIVE: To report the demographic characteristics, injury rate, severity, and morbidity in BASE jumping. DESIGN: Cross-sectional survey. SETTING: BASE jumping group meetings from 2006 to 2010. PARTICIPANTS: Heterogenic group of 102 International BASE jumpers. ASSESSMENT OF RISK FACTORS: Injuries reported as function of jumps made, jumping days, age, experience, and ...

The platysma myocutaneous flap (PMF) was first applied to intraoral reconstructions in 1978. PMF is not only an alternative to microvascular flaps but it also represents an excellent reconstructive choice especially in cases where free tissue transfer cannot be carried out. Failure and complications rate have been described as varying ...

OBJECTIVES: The aim of this study was to analyse the long-term result after reconstruction of the medial orbital wall with a flexible, biodegradable material (Ethisorb®). MATERIALS AND METHODS: During a period of almost 8 years, 31 patients with a medial orbital wall fracture were analysed retrospectively. Inclusion criteria were patients with ...

INTRODUCTION: The aim of this study was to present clinical experience and outcomes of intramedullary nailing of proximal, midshaft and distal tibia fractures with the Expert Tibia Nail (ETN; Synthes GmbH, Switzerland), an implant offering a wide range of proximal and distal locking options in multiple planes to increase stability ...

SUMMARY: Proximal third tibial shaft fractures have been notoriously difficult to treat. Early reports resulting in high rates of malunion and fixation failure trended surgeons to move away from intramedullary nailing as definitive treatment. However, with the advent of a deepened understanding of the surround anatomy, several techniques have been ...

OBJECTIVE: to estimate femoral fracture rates in community-dwelling older people without care need (CCN(-)), in community-dwelling older people with care need (CCN(+)) and in residents of nursing homes (RNH) and to determine their contribution to the overall burden of femoral fractures. METHODS: routine data of more than 1.2 million German ...

OBJECTIVE: To determine the factors contributing to failure of interpolation flaps in nasal reconstruction. DESIGN: Retrospective medical chart review. SETTING: Tertiary care academic center. PATIENTS: A total of 107 patients with nasal defects needing reconstruction, performed at the University of Arkansas for Medical Sciences, Little Rock. INTERVENTION: Patients underwent nasal ...

OBJECTIVE: To explore the incidence of musculoskeletal injuries in elite able-bodied and wheelchair foil fencers. DESIGN: A 3-year prospective cohort study of sport injuries during 2006-2009. SETTING: A sample of elite able-bodied and wheelchair fencers (WFs) from the Hong Kong National Squad. PARTICIPANTS: A total of 14 wheelchair and 10 ...

PURPOSE: To evaluate the in vitro biomechanical characteristics of patellar tendon ligaments (BTB) when stored as fresh frozen or as glycerol cryopreserved allografts. METHODS: Seventy patellar tendons were harvested from 35 cadaveric human donors and randomly assigned into seven groups. Grafts in group FRESH were mechanically tested within 2 h of ...

BACKGROUND: The overhead athlete is at risk for shoulder and elbow injuries. However, the mechanics associated with overhead sports also place athletes at risk for hip injuries. Advancements in hip arthroscopy have identified femoroacetabular impingement (FAI) and instability as potential contributors to labral and chondral pathology in this athletic population. ...

BACKGROUND: Recent studies have suggested benefits following primary operative fixation of substantially displaced midshaft fractures of the clavicle. We reviewed randomized clinical trials of operative versus nonoperative treatment of these fractures, and pooled the functional outcome and complication rates to arrive at summary estimates of these outcomes. METHODS: A systematic ...

Since the initial description by Michelet et al. and research by Champy et al. the placement of a single, four-hole, monocortical, osteosynthesis plate has been considered an acceptable method of fixation for a fracture of the mandibular angle. We investigated the null hypothesis that there is no difference in the ...

BACKGROUND: Recently, structured training programs for sports injury prevention ("The 11" and "The 11+") have been validated in soccer. The FIFA 11+ program has not been evaluated in basketball. HYPOTHESIS: The FIFA 11+ program is effective in reducing the rates of injury in male basketball players. STUDY DESIGN: Randomized controlled ...