- Scoliosis diagnosis and treatment
- Spinal Fractures and Fixation Techniques
- Spine and Intervertebral Disc Pathology
- Pelvic and Acetabular Injuries
- Medical Imaging and Analysis
- Connective tissue disorders research
- Hip disorders and treatments
- Spinal Dysraphism and Malformations
- Neurogenetic and Muscular Disorders Research
- Cerebral Palsy and Movement Disorders
- Musculoskeletal pain and rehabilitation
- Spinal Hematomas and Complications
- Pectus Deformity Diagnosis and Treatment
- Surgical site infection prevention
- Congenital Diaphragmatic Hernia Studies
- Radiation Dose and Imaging
- Infectious Diseases and Tuberculosis
- Traumatic Brain Injury and Neurovascular Disturbances
- Shoulder Injury and Treatment
- Management of metastatic bone disease
- Nerve Injury and Rehabilitation
- Medical and Biological Sciences
- Family and Disability Support Research
- Neurofibromatosis and Schwannoma Cases
- Hip and Femur Fractures
Twin Cities Spine Center
2006-2024
Minneapolis Institute of Arts
1997-2024
University of Minnesota
1987-2020
Gillette Children's Specialty Healthcare
1992-2018
University of Minnesota System
2001
Lenox Hill Hospital
1999
Foundation for Ichthyosis and Related Skin Types
1997
The Spine Institute
1997
American Academy of Pediatrics
1997
St. Paul's Hospital
1989-1996
We reviewed the cases of 727 patients with idiopathic scoliosis in whom initial curve measured from 5 to 29 degrees. The were followed either end skeletal growth or until progressed. One hundred and sixty-nine (23.2 per cent) showed progression curve. incidence was found be related pattern magnitude curve, patient's age at presentation, Risser sign, menarchal status. no correlation between sex, Harrington factor, rotational prominence, family history, radiographic measurements. A factor...
Study Design. A retrospective cohort study was conducted in 5573 female patients with scoliosis who were referred for treatment at 14 orthopedic medical centers the United States. Patients less than 20 years of age diagnosis which occurred between 1912 and 1965. Objectives. To evaluate patterns breast cancer mortality among women scoliosis, special emphasis on risk associated diagnostic radiograph exposures. Summary Background Data. pilot 1030 revealed a nearly twofold statistically...
A retrospective review of 1223 thoracic and lumbar anterior spinal fusions was performed from 1969 through 1992.To document the incidence specific types perspective complications related to fusions.Despite increased use surgery, there has been little documentation frequencies associated with its use.All Minnesota Spine Center patients age 18 years or older who had between levels T1 S1 August June 1992 were reviewed for occurrence perioperative complications. Surgical approach technique...
The safety and the effectiveness of pedicle-screw instrumentation in spine have been questioned despite its use worldwide to enhance stabilization spine. This review was performed answer questions about technique insertion nature etiology complications directly attributable screws.We a retrospective all procedures that were done by us from January 1, 1984, December 31, 1993. We inserted 4790 screws during 915 operative on 875 patients; 668 (76.3 percent) patients had lumbosacral arthrodesis....
Fifty-five patients who had loss of lumbar lordosis after spinal fusion and subsequently corrective osteotomies were studied. When they first seen, fifty-two (95 per cent) unable to stand erect forty-nine (89 back pain. The previous use distraction instrumentation with a hook placed at the level lower spine or sacrum was factor that most frequently identified as leading development flatback syndrome. Sixty-six extension performed in these fifty-five patients. Nineteen (35 an associated...
Although exposure to ionizing radiation is a recognized risk factor for breast cancer, the potential hazard from low-dose, fractionated exposures during early development has not been thoroughly evaluated. Women with scoliosis represent valuable population studying this issue because they are exposed multiple diagnostic x rays childhood and adolescence, times when may be highly sensitive carcinogenic effects of radiation. A study was conducted 1,030 women who were seen at four Minneapolis...
In Brief Study Design. This study prospectively evaluated the health related quality of life (HRQOL) 73 adults presenting with scoliosis at a single institution, as to their spinal (C7 plumbline) and global (gravity line) balance. Objective. To assess influence sagittal coronal balance on HRQOL in adult scoliosis. Summary Background Data. Many surgeons believe that achieving adequate is important management deformity, but evidence supporting this concept remains limited. A previous has found...
We studied cancer mortality in a cohort of 5,573 women with scoliosis and other spine disorders who were diagnosed between 1912 1965 exposed to frequent diagnostic X-ray procedures. Patients identified from medical records 14 orthopedic centers the United States followed for vital status address through December 31, 2004, using publicly available regional, state nationwide databases. Causes death obtained certificates or linkage National Death Index (NDI). Statistical analyses included...
Summary: Four hundred sixty-four patients with cerebral palsy were reviewed. They placed in four function groups: independent ambulators (n = 76), dependent 43), sitters 41), and 304). The percentage of subluxated or dislocated hips increased from 7% for to 60% sitters. In the sitters, a level pelvis different degrees pelvic obliquity did not correlate whether hip was located, subluxated, dislocated. high side amount obliquity. Muscle imbalance around is cause subluxation dislocation.
The authors reviewed 817 instrumented lumbosacral fusions in adults and found an incidence of 3.2% deep wound infections. primary focus this study was the management these infections, with particular attention to whether implants needed be removed. A consulting infectious disease specialist indicated that acute infection a low back fusion could not healed without removal metallic implants. This opinion contrast authors' daily experience prompted study. identified cases posterior arthrodeses...
Post-laminectomy spinal deformity occurs in 50% of children undergoing laminectomies for cord tumors. Kyphosis is the most frequent found. The integrity facet joints appears to be one important factors development this kyphosis. More are surviving after treatment these tumors and a pessimistic attitude not warranted. Observation progressing acceptable treatment. When kyphosis develops, early prompt bracing must started. For progressive or severe kyphosis, an anterior spine fusion indicated....
School screening for scoliosis is a well accepted technique the early detection of spinal deformities. We reviewed experience in Minnesota over past eight years, with an average one-quarter million children being screened yearly. Of screened, 3.4 per cent were referred evaluation and was found 1.2 cent. The number requiring operations adolescent idiopathic has diminished since 1970. curve which surgical procedure done also from 60 to 42 degrees. cost program low, averaging 6.6 cents student...
We analyzed the results of posterior arthrodesis spine for congenital scoliosis, with or without Harrington instrumentation, in 290 323 patients who were operated on between ages five and nineteen years followed two more. The length follow-up averaged six ranged from to twenty-eight years. average curve before surgery was 55 degrees (range, 13 155 degrees), at correction 38 5 102 final 44 103 degrees). Bending fusion mass more than 10 seen forty patients; pseudarthrosis, twenty; adding-on...
Abstract Background: Ionizing radiation is a well-established human mammary carcinogen. Women historically monitored by radiography at young ages for abnormal spinal curvature are an exposed population suitable investigating radiation-related risk and its variation modifying factors. In this historic cohort, 95% of daily dose increments (when exposure to the breast occurred) were under 2.4 cGy, with mean 1.1 cGy. Methods: A retrospective cohort 3,010 women, diagnosed between 1912 1965 in 14...
In Brief Study Design. A retrospective study of complications with minimal 5-year follow-up 50 adults scoliosis fusion from T10 or higher to S1. Objectives. To document the perioperative and long-term instrumentation problems, attempt determine variables which may influence these problems. It is not a curve correction, balance, functional outcome. Summary Background Data. Several previous studies this other centers have shown relatively high complication rate for select group patients....
Twenty-four patients with Scheuermann's kyphosis underwent correction of the deformity through a combined anterior and posterior spine fusion. All had solid arthrodesis most were relieved their preoperative pain. Deformity was improved in all patients. Significant loss did not occur fusion area but it below five
Lonstein, John M.B.B.CH.(RAND); Winter, Robert M.D.; Moe, Gaines, Don M.D. Author Information
Forty-six patients who had a neuromuscular spinal deformity were treated with arthrodesis and Luque segmental instrumentation followed for an average of three years. Twenty-two cerebral palsy twenty-four another disease. In thirty-nine patients, the was extended to sacrum. Eleven severe scoliosis as well pelvic obliquity decompensation torso combined anterior posterior arthrodesis; other thirty-five one-stage procedure. Preoperatively, 74 degrees; this corrected 39 degrees at follow-up....
The results of anterior and posterior excision or wedge resection a hemivertebra arthrodesis the spine were reviewed retrospectively for thirty-seven patients. degree correction that was obtained maintained, balance alignment trunk, changes in pelvic obliquity, associated complications evaluated. average age at time operation twelve years (range, six months to forty-two years). duration follow-up two nineteen mid-thoracic level patients, thoracolumbar nine, mid-lumbar seven, lumbosacral...