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For years, bioengineers and orthopaedic surgeons have applied the principles of mechanics to gain valuable information about the complex function of the anterior cruciate ligament (ACL). The results of these investigations have provided scientific data for surgeons to improve methods of ACL reconstruction and postoperative rehabilitation. This review paper(More)
STUDY DESIGN Retrospective case series. OBJECTIVE To report the effect of repeated growing rod (GR) lengthenings on the sagittal and pelvic profile in patients with early-onset scoliosis. SUMMARY OF BACKGROUND DATA Posterior distraction-based GRs have gained popularity as a technique for the surgical management of early-onset scoliosis. However, there(More)
STUDY DESIGN Retrospective clinical cohort study. OBJECTIVE To compare the clinical and radiographic outcomes of patients who were treated with intrasegmental pars fixation by either laminar compression screw (LS) or a pedicle screw, rod, and laminar hook (PSRH) construct. SUMMARY OF BACKGROUND DATA Spondylolysis is a nonunion defect of the pars(More)
STUDY DESIGN Retrospective case series. OBJECTIVE To assess the perioperative morbidity of pedicle subtraction osteotomy (PSO) based on the presence of 1 versus 2 attending surgeons. BACKGROUND SUMMARY Pedicle subtraction osteotomies are challenging cases with high complication rates and substantial physiological burden on patients. The literature(More)
BACKGROUND VEPTR (vertical expandable prosthetic titanium rib) expansion thoracoplasty is used to manage thoracic insufficiency syndrome in early-onset scoliosis. Literature regarding the effects of this technique on pulmonary function is scarce. The aim of this study was to report the intermediate-term results of VEPTR expansion thoracoplasty. METHODS(More)
BACKGROUND Paraplegia or death secondary to upper cervical spine instability and spinal cord compression are known consequences of Morquio syndrome. Decompression and fusion of the upper cervical spine are indicated to treat spinal cord compression. The purpose of this study was to report the intermediate to long-term results of upper cervical spine fusion(More)
STUDY DESIGN Retrospective case series. OBJECTIVE To report the outcomes of distraction-based, growth-sparing spinal instrumentation in patients with skeletal dysplasia. SUMMARY OF BACKGROUND DATA Patients with skeletal dysplasia with spinal deformity often undergo early fusion, further compromising an already small chest. Nonfusion techniques may(More)
BACKGROUND Performance on the Orthopaedic In-training Examination (OITE) has been correlated with performance on the written portion of the American Board of Orthopaedic Surgery examination. Herein we sought to discover whether adding a regular pediatric didactic lecture improved residents' performance on the OITE's pediatric domain. METHODS In 2012, a(More)
STUDY DESIGN Retrospective case series. OBJECTIVE This study evaluated the incidence of postoperative neurological symptoms after a freehand pedicle screw insertion technique in idiopathic posterior scoliosis surgery. SUMMARY OF BACKGROUND DATA It is generally accepted that pedicle screws can be inserted by a freehand technique in the thoracic and(More)
BACKGROUND CONTEXT Revision surgery for pseudarthrosis after a lumbar spinal fusion has unpredictable functional results. PURPOSE The aim of this study was to determine the clinical outcomes of revision surgery to fuse the pseudarthrosis site based on the two most common diagnoses (degenerative disc disease [DDD] vs. spondylolisthesis). STUDY DESIGN(More)