- Pelvic and Acetabular Injuries
- Bone fractures and treatments
- Hip and Femur Fractures
- Orthopedic Surgery and Rehabilitation
- Orthopaedic implants and arthroplasty
- Cardiac, Anesthesia and Surgical Outcomes
- Hip disorders and treatments
- Spinal Fractures and Fixation Techniques
- Surgical site infection prevention
- Pregnancy-related medical research
- Elbow and Forearm Trauma Treatment
- Orthopedic Infections and Treatments
- Foot and Ankle Surgery
- Trauma and Emergency Care Studies
- Bone health and osteoporosis research
- Knee injuries and reconstruction techniques
- Abdominal Trauma and Injuries
- Total Knee Arthroplasty Outcomes
- Cardiovascular and exercise physiology
- Healthcare cost, quality, practices
- Shoulder and Clavicle Injuries
- Healthcare Policy and Management
- Interprofessional Education and Collaboration
- Health Policy Implementation Science
- Meta-analysis and systematic reviews
University of Maryland, Baltimore
2011-2024
Population Health Research Institute
2024
Hamilton Health Sciences
2024
McMaster University
2024
University of California, San Francisco
2010-2023
San Francisco General Hospital
2010-2021
University of Pennsylvania
2020
Orthopaedic Center
2014
Stryker (United States)
2012
American Academy of Orthopaedic Surgeons
2011
Studies evaluating surgical-site infection have had conflicting results with respect to the use of alcohol solutions containing iodine povacrylex or chlorhexidine gluconate as skin antisepsis before surgery repair a fractured limb (i.e., an extremity fracture).
When treating ankle fractures with associated syndesmosis injury, failure to anatomically reduce the may lead poor outcome. While shortening and posterior subluxation of distal fibula are readily detected by intraoperative fluoroscopy, it is unclear how well malrotation can be assessed. The ability fluoroscopy detect rotational malreduction was subject this study.Distal complete syndesmotic injury were produced in ten cadaveric ankles. Two Kirschner wires used fix neutral (0 degrees), 10 30...
To evaluate the accuracy of computer-assisted sacral screw fixation compared with conventional techniques in dysmorphic versus normal sacrum.Review a previous study database.Database multinational 9 participating trauma centers.The reviewed group included 130 patients, 72 from navigated and 58 group. Of these, 109 were nondysmorphic 21 group.Placement sacroiliac (SI) screws was performed using standard fluoroscopy for BrainLAB navigation software either 2-dimensional or 3-dimensional (3D)...
Background Hemodynamically unstable patients with a pelvic fracture and arterial bleeding frequently are treated angiographic embolization (PAE). PAE is reported to be safe effective method of controlling hemorrhage. However, the loss blood supply subsequent ischemia from may lead adverse consequences. Objectives/purposes We sought determine (1) frequency types complications observed after PAE; (2) mortality (3) clinical factors associated PAE. Methods conducted retrospective case series...
Postoperative knee flexion in patients undergoing Insall-Burstein-II total arthroplasty at 2 years was evaluated regarding two basic questions: what groups of gain or lose the most and have best worst postoperative flexion. Thirteen preoperative variables (maximum flexion, arc, tibiofemoral angle, quadriceps strength, extensor lag, Knee Society score, patient assessment, gender, age, height, weight, diagnosis, surgeon) four variable (leg length change, distance from patella to joint line,...
Internal fixation of OTA type 31-A2 proximal femoral fractures can be performed with either a sliding hip screw and side plate (SHS-P) or intramedullary nail (SHS-IMN). Controversy exists as to which is the best implant for these types fractures. The primary aim this study was investigate stability function loss medial cortical buttress. secondary assess influence fracture on different internal constructs.Simulated simple intertrochanteric were made in 12 cadaver femurs. Six fixed an SHS-P 6...
Background: Computed tomography (CT)-based indices may be superior to plain radiographs in determining the adequacy of reduction following operative fixation syndesmosis unstable ankle fractures. This study assessed reliability and accuracy four CT-based methods for measurement rotational malreduction fibula. Methods: A simulated Weber C fracture was created by performing an osteotomy 9 cadaver ankles. The fibula rotated fixed neutral (0 degrees) 10 30 degrees internal external rotation....
Objectives: The purpose of this study was to compare the fixation afforded by a dorsal nonlocking plate with volar locking in fracture model simulating an extra-articular distal radius comminution (OTA [Orthopaedic Trauma Association] type 23-A3.2). Methods: In 10 matched pairs fresh-frozen cadaveric arms, comminuted dorsally unstable 23-A3.2) created. fractures were fixed either placed T-plate or volarly within pairs. precycling stiffness axial and torsional loading specimens determined....
This study compared the biomechanical fatigue strength of calcium phosphate augmented repairs versus autogenous bone graft (ABG) in lateral tibia plateau fractures.Eight matched pairs tibias (six male, two female; age, 75 ± 14 years) were harvested from fresh-frozen cadavers. Reproducible split-depression fractures simulated and repaired by an orthopaedic traumatologist using a tibial plate. One each donor was randomly assigned to either (Callos; Acumed, Hillsboro, OR) or ABG as...
Percutaneous iliosacral screws are considered the standard of care for disruptions sacroiliac joint. This article describes a case iatrogenic injury to superior gluteal artery during screw insertion and analyzes possible reasons this complication. A 32-year-old man diagnosed with an unstable pelvic ring underwent percutaneous fixation right 2-cm skin incision was made, straight cannulated awl placed tip directly lateral S1 body. guide wire inserted partially threaded 6.5-mm washer then over...
Open reduction and internal fixation of a distal radius fracture can leave volar plate in close proximity or touching the tendons wrist. This cadaveric study examines how position changes contact pressure force against flexor pollicis longus (FPL) tendon multiple wrist extension positions. suggests that moving from an ideal (distal edge at watershed line) to malposition (5 mm significantly increased by 72.7% 33.5% on FPL. Multiple clinical case reports have described rupture associated with...
Much of the difficulty in understanding acetabular fracture patterns is due to complex three-dimensional relationship acetabulum greater pelvis. We hypothesized that combining "hands-on" anatomic models with two-dimensional informational teaching sheets would improve ability orthopaedic residents accurately classify and aid preoperative surgical approach selection.Thirty-five from two programs accredited by Accreditation Council for Graduate Medical Education participated this prospective...
Purpose. This study examined whether octogenarians and elderly patients with pelvic fractures have a different risk of complication mortality as compared to adults. Methods. Data was gathered from the National Trauma Bank 2002 2006. There were 32,660 18-65, 6,408 65-79, 5,647 ≥ 80 years old fractures. Descriptive statistics bivariate multivariate analyses performed adult population referent. Results. Multivariate analysis showed 4.7-fold higher odds death 4.57 complications in octogenarian...
Osteosynthesis of the tibia, tibial plafond, and calcaneus is commonly performed with plates 3.5-mm self-tapping cortical screws. Screw insertion reinsertion within same hole in bone may occur during surgery. Therefore, purpose this study was to evaluate pullout strength screws up 5 re-insertions diaphysis metaphysis distal calcaneus, a polyurethane synthetic model.Screws were inserted into model pairs human cadaveric diaphyseal tibiae, calcanei. The predrilled, then 316 L stainless steel...
Pediatric pelvic fractures are associated with high-energy trauma and injury to other systems, leading an increased incidence of complication mortality. Previous studies analyzed the pediatric population as a whole, including both children adolescents. The purpose this study was examine whether adolescents fracture have different mortality rates compared younger adults.Using National Trauma Data Bank, 37,784 patients below age 55 years were identified divided into (age <13 years), 13-17...
Objective To investigate the use of time intervals in treatment fractured femurs as indicators quality trauma systems.Methods Time from injury to admission, admission surgery and discharge for patients with isolated femur fractures four low-and middle-income countries were compared corresponding values one German hospital, an Israeli hospital National Trauma Data Bank United States America by means Student's t-tests.The correlations between recorded a country that country's expenditure on...
Recent studies on ankle syndesmosis injuries have shown that a significant amount of rotational malediction the distal fibula are missed and may lead to poor functional outcome. A new set radiographic criteria were developed help detect internal external rotation using conventional fluoroscopy. The tested cadaveric model for Weber C fractures fixed with in various degrees rotation. Using orthopaedic trauma surgeons able improve their accuracy agreement assessment degree direction