- Spine and Intervertebral Disc Pathology
- Spinal Fractures and Fixation Techniques
- Pelvic and Acetabular Injuries
- Musculoskeletal pain and rehabilitation
- Cervical and Thoracic Myelopathy
- Medical Imaging and Analysis
- Foot and Ankle Surgery
- Tendon Structure and Treatment
- Scoliosis diagnosis and treatment
- Spinal Hematomas and Complications
- Orthopaedic implants and arthroplasty
- Nerve Injury and Rehabilitation
- Hip and Femur Fractures
- Infectious Diseases and Tuberculosis
- Spondyloarthritis Studies and Treatments
- Orthopedic Surgery and Rehabilitation
- Case Reports on Hematomas
- Lower Extremity Biomechanics and Pathologies
- Peripheral Nerve Disorders
- Hip disorders and treatments
- Management of metastatic bone disease
- Spinal Cord Injury Research
- Anesthesia and Pain Management
- Bone and Joint Diseases
- Spinal Dysraphism and Malformations
University of Toledo Medical Center
2014-2025
University of Toledo
2007-2024
Creative Research Enterprises (United States)
2016-2018
Holland Hospital
2011
Harborview Medical Center
2007
University of Washington
2007
University of British Columbia
2005-2006
Vancouver Coastal Health Research Institute
2006
Vancouver General Hospital
2006
May Institute
2003
The sacroiliac joints (SIJs), the largest axial in body, sit between sacrum and pelvic bones on either side. They connect spine to pelvis thus facilitate load transfer from lumbar lower extremities. majority of low back pain (LBP) is perceived originate spine; however, another likely source LBP that mostly overlooked SIJ. This study (Parts I II) aims evaluate clinical biomechanical literature understand anatomy, biomechanics, sexual dimorphism, causes mechanics SIJ leading conservative...
The ilium and the fibula are most common sites for bone-graft harvesting. different methods harvesting iliac bone graft include curettage, trapdoor or splitting techniques cancellous bone, subcrestal-window technique bicortical graft. A tricortical from anterior should be taken at least 3 cm posterior to superior spine (ASIS). Iliac donor-site complications pain, neurovascular injury, avulsion fractures of ASIS, hematoma, infection, herniation abdominal contents, gait disturbance, cosmetic...
Fifty-eight patients with 60 talar fractures were retrospectively reviewed. There 39 men and 19 women. The age average was 32 (range, 14–74). Eighty six percent of the had multiple injuries. most common mechanism injury a motor vehicle accident. Twenty-seven (45%) neck, 22 (36.7%) process, 11 (18.3%) body. Forty-eight operative treatment 12 non-operative management. follow-up period 30 months 24–65). Thirty-two (53.3%) developed subtalar arthritis. Two subsequent fusion. Fifteen (25%) ankle...
This retrospective study evaluated the diagnostic value of computed tomography in patients with sacroiliac pain. Computed scans joints 62 joint pain were reviewed. The criteria to include patient current relief after a local injection under guidance, physical examination consistent origin pain, and negative magnetic resonance imaging lumbar spine. A control group consisted 50 matched age who had pelvis for reason other than pelvic or back showed one more findings 57.5% 31% symptomatic...
The comparison of sacroiliac joint (SIJ) angular motions, pelvis ligaments strain, load sharing, and stress distribution across the for male female spine-pelvis-femur models using finite element analysis.To quantify biomechanical parameters at SIJ all motions both models.SIJ has been recognized as a main source pain in 13% to 30% patients with low back pain. It is shown that rotation translation different planes are not exceeding 2° 3° 2 mm, respectively. Due limitation vivo vitro studies,...
The charts and radiographs of 99 patients with 106 intraarticular fractures the calcaneus were retrospectively reviewed. There 75 men 24 women. average age was forty-two (range, 17 to 81). Fifty-seven left 49 right. mechanism injury a fall from height in 69 motor vehicle accident 30 patients. According Sanders classification, seventy-one cases (67%) had type II fractures, 25 (23.6%) III, ten (9.4%) IV. All operative management through limited sinus tarsi approach minimal fixation fracture...
Low fibular fractures that were associated with deltoid ligament disruption and inferior tibiofibular syndesmotic studied. All of the patients had a Type B Weber fracture injury. It was difficult to detect syndesmosis on initial assessment anteroposterior mortise radiographs obtained preoperatively because there no obvious talar shift plain radiograph. Careful evaluation radiograph determination all recommended measurements necessary diagnose disruption. However, easily recognizable axial...
Diabetes predisposes to spine degenerative diseases often requiring surgical intervention. However, the statistics on prevalence of spinal fusion success and clinical indications leading revision surgery in diabetes are conflicting. The purpose presented retrospective observational study was determine link between lumbar complications using a database patients (
Various ball and socket-type designs of cervical artificial discs are in use or under investigation. Many disc claim to restore the normal kinematics spine. What differentiates one type design from another is currently not well understood. In this study, authors examined various clinically relevant parameters using a finite element model C3–C7 spine study effects variations socket designs. Four were placed at C5–C6 level an experimentally validated model. Biomechanical shape (oval vs....
A retrospective study of 24 sacroiliac joint computed tomographic (CT) scans patients with persistent donor site pain.To illustrate the findings joints in who underwent posterior iliac bone graft harvesting subsequent pain.In a previous was divided into three zones. Zone 1 carried no risk violation synovial part joint. In Zones 2 and 3 there potential to There is literature on effect violating different parts during harvesting.Computed 22 pain after were retrospectively reviewed.Of 16...
In Brief Study Design. Clinical case series. Objective. To describe a series of patients with progressive sagittal decompensation caused by failure at the caudal end an instrumented lumbar fusion. Summary Background Data. Lumbar kyphosis in association global can be disabling problem, particularly as late complication distraction instrumentation. Although rostral fusions secondary to adjacent segment degeneration has been well described, substantially less documented about and end. Methods....
In Brief Study Design. Retrospective study of a consecutive series patients undergoing lumbar spine magnetic resonance imaging (MRI) for low back pain at single institution. Objective. To determine the prevalence and nondetection rate incidental extraspinal findings (IESFs) in adult MRI performed by using structured approach. Summary Background Data. Extraspinal are depicted on image. There is limited evidence concerning their prevalence, importance, how often they missed interpreting...
This is an in vitro biomechanical study.To compare the stability of 3 C1-C2 transarticular screw salvaging fixation techniques.Stabilization atlantoaxial complex a challenging procedure because its complicated anatomy. Many posterior stabilization techniques have been developed with current gold standard. The drawback using screws that it has potential risk vertebral artery injury due to high riding transverse foramen C2 vertebra, and malposition. In such cases, not recommended proceed...
Background: The rates of nonunion after internal fixation for femoral neck fractures have been reported to range from 0% 59%. Existing treatment options are osteotomy (with or without graft), osteosynthesis using various implants and grafting techniques (muscle pedicle, vascularized, nonvascularized fibula), arthroplasty. objective this study was assess the outcome results revision nonvascular fibular bone symptomatic aseptic nonunion. Methods: This is a retrospective case series involving...