Mulberry Heart Disease and Hepatosis Dietetica in Farm Pigs () in a Research Setting.

Perioperative complications and deaths occurred while developing a novel surgical model of pediatric kyphosis in 10 to 12 kg male farm-raised Yorkshire piglets. All piglets appeared clinically normal preoperatively. Intraoperative complications included tachycardia, respiratory acidosis, and death.

Creation of a Porcine Kyphotic Model.

Study Design: Large animal study.

Objective: Create a thoracic hyperkyphotic deformity in an immature porcine spine, so that future researchers may use this model to validate spinal instrumentation and other therapies used in the treatment of hyperkyphosis.

Summary Of Background Data: Although several scoliotic animal models have been developed, there have been no reports of a thoracic hyperkyphotic animal model creation in an immature animal.

Experience with definitive instrumented final fusion after posterior-based distraction lengthening in patients with early-onset spinal deformity: single center results.

Limited reports exist with regard to clinical and radiographic details of patients with early-onset spinal deformity (EOSD) undergoing definitive instrumented final fusion (FF) following implantation of a growing construct. Charts and radiographs were queried for all patients who underwent FF after management of EOSD with a distraction-based posterior construct at a single institution from 2006 to 2017. Patients managed during the growth modulation period with either proximal rib or spinal fixation were included.

Resident Physician Duty-hour Requirements: What Does the Public Think?

Introduction: To date, no study has reported on the public's opinion of orthopaedic resident duty-hour requirements (DHR).

Methods: A survey was administered to people in orthopaedic waiting rooms and at three senior centers. Responses were analyzed to evaluate seven domains: knowledge of duty hours; opinions about duty hours; attitudes regarding shift work; patient safety concerns; and the effects of DHRs on continuity of care, on resident training, and on resident professionalism.

An alternate method of fixation for management of early-onset deformity with thoracic kyphosis.

Background: Although methods currently used for management of early-onset scoliosis are effective, the presence of excessive thoracic kyphosis is associated with an increased instrumentation failure rate.

Methods: An alternate method of upper thoracic fixation by using a 4-rib construct was developed by necessity when the author was presented with 2 cases of early-onset deformity with severe kyphosis and osteoporosis.

Results: With a minimum 3-year follow-up, both cases have demonstrated gratifying clinical and radiographic results.

The use of bone grafts and bone graft substitutes in pediatric orthopaedics: an overview.

Bone graft substitutes have become progressively more widely used, and are currently heavily marketed. To make intelligent decisions, a complete knowledge of autograaft and allograft bone healing is essential, including the definition of "sterile". Differences in donor selection and tissue processing may confound the user not familiar with the implications of these different approaches.

Subtrochanteric valgus osteotomy for chronically dislocated, painful spastic hips. Surgical technique.

Background: Many treatments have been proposed for a painful chronically dislocated hip in a child with spasticity who is unable to walk. The valgus subtrochanteric femoral osteotomy was originally described as a treatment for a missed congenital hip dislocation in a young adult who was able to walk. The purpose of this study was to investigate the outcomes of a modified Hass subtrochanteric valgus osteotomy for the treatment of symptomatic chronic hip dislocations in patients with spasticity due to neuromuscular disorders.

Subtrochanteric valgus osteotomy for chronically dislocated, painful spastic hips.

Background: Many treatments have been proposed for a painful chronically dislocated hip in a child with spasticity who is unable to walk. The valgus subtrochanteric femoral osteotomy was originally described as a treatment for a missed congenital hip dislocation in a young adult who was able to walk. The purpose of this study was to investigate the outcomes of a modified Hass subtrochanteric valgus osteotomy for the treatment of symptomatic chronic hip dislocations in patients with spasticity due to neuromuscular disorders.

Posterior acetabular wall deficiency in Down syndrome.

Trisomy 21 or Down syndrome is the most common chromosomal anomaly and is associated with musculoskeletal abnormalities related to a generalized ligamentous laxity. Approximately 1% to 7% of Down syndrome patients have hip instability. Prior studies on the topic recommend Salter innominate osteotomy, capsular plication, and a varus derotational osteotomy of the proximal femur, which typically is in an anteverted and valgus position.

Overuse injuries in pediatric athletes.

Children can be seemingly invincible, with inexhaustible energy. Even the elite young athlete, however, may lack the experience to realize when his or her level of activity is increasing the risk of sustaining injuries related to overuse. Coaches, trainers, parents, and physicians need to monitor the activities of young athletes, modify factors that may place them at increased risk of injury, and enforce periods of "relative rest" when necessary.

Training Programs for Volunteer Coaches: More Time, More Money.

Good youth coaches are supposed to be teachers, psychologists, philosophers, and businesspersons. The author surveyed an Oklahoma soccer club to find out how coaches and parents rated themselves and each other.