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Biomedical subjects

David L Skaggs

Publications and source records attributed to David L Skaggs.

At least 37 records · Page 2Linked to original sources

The surgical management of pediatric fractures of the lower extremity.

The majority of pediatric fractures of the lower extremity can and should be treated with closed reduction, immobilization, and close follow-up. However, there is an ongoing debate in the orthopaedic community regarding the exact role of surgical management in the treatment of pediatric fractures. In the past 2 decades, surgical management of certain fractures provided markedly better results than closed management. In certain cases, such as those requiring anatomic realignment of the physis or articular surface, there are clear indications for surgical management. Increasingly, however, surgical management is being used to maintain optimal alignment, to allow early motion, or to facilitate mobilization of children with a lower extremity fracture. For many types of fractures, both nonsurgical and surgical methods have yielded good results and have vocal advocates. Certain technical advances, such as the use of flexible intramedullary fixation and bioreabsorbable implants, have further increased enthusiasm for surgical management of pediatric fractures of the lower extremity.

Adolescent↗

Thoracoscopic anterior spinal release and fusion: evolution of a faster, improved approach.

PURPOSE: The aim of this study was to compare the perioperative parameters and outcomes of video-assisted thoracoscopic surgery (VATS) with open thoracotomy for anterior release and fusion in the treatment of pediatric spinal deformities. METHODS: Twenty-six patients treated with VATS anterior spinal release and posterior spinal fusion by the authors were reviewed retrospectively. Fourteen age- and disease-matched patients who underwent open thoracotomy for anterior spinal release and posterior spinal fusion by the same group of surgeons during the same time period were evaluated for comparison. Patients whose anterior level of exposure extended below the diaphragm were excluded. RESULTS: Blood loss, operative transfusion, and length of postoperative chest tube use all were decreased in the VATS patients compared with thoracotomy patients (P < or =.05). The average operating time for VATS was less than that for thoracotomy but did not reach statistical significance. However, operating time was significantly shorter in the second 13 VATS patients compared with the first 13 patients. No complications specifically related to the VATS approach were identified. CONCLUSIONS: The VATS technique is a safe and comparable alternative to open thoracotomy. Although there is a learning curve for VATS, greater experience could show an advantage in this approach to the anterior spine for the treatment of pediatric spinal deformity.

Adolescent↗

Orthopaedic manifestations of neurofibromatosis in children: an update.

Neurofibromatosis is one of the most common genetic disorders affecting mankind. Despite extensive basic science research, the diagnosis still is based largely on well-defined clinical criteria, which often present gradually during childhood. Approximately 50% of patients have significant musculoskeletal manifestations, with scoliosis and congenital pseudarthrosis of the tibia most common. Approximately 20% of children with Type I neurofibromatosis present with scoliosis with or without the classic dystrophic features, such as vertebral scalloping and rib penciling. Dystrophic curves portend rapid progression and require early fusion. Surgical treatment often is challenging because of the common presence of neurofibromas adjacent to the spinal cord, significant multiplanar deformity, and poor bone quality. Congenital pseudarthrosis of the tibia also continues to present significant difficulties. The use of a brace is the mainstay of early treatment, whereas intramedullary rodding commonly is used for operative fixation. Grafting of the free fibula and correction using techniques of distraction and compression histiogenesis with Ilizarov fixators have been reported for refractory cases with varying degrees of success. Multiple heroic, operative attempts may have a tremendous toll on the quality of life of affected children through their early childhood. In addition to these and other distinctive musculoskeletal lesions, affected children often suffer from various medical problems.

Bone and Bones↗

Growth arrest of the distal radius following a metaphyseal fracture: case report and review of the literature.

We report a 12-year-old girl who developed growth arrest of the distal radius physis 9 months after sustaining a complete fracture of the distal radial and ulnar metaphysis with no involvement of the physis evident at time of injury. The girl sustained a fracture of the metaphysis of her right distal radius and ulna after a fall. Anterior-posterior, lateral and oblique radiographs at injury, and during subsequent healing show no evidence of the fracture involving the physis. She was treated with closed reduction and casting for 6 weeks and healed uneventfully. She returned 4 month later concerned about distal ulnar prominence. Radiographs revealed a loss of radial tilt and with suspicion of a physeal bar. Magnetic resonance imaging confirmed a physeal bar located in the dorsal radial region. A literature search of the Medline database was used to obtain prior case reports for review purpose. The patient underwent an epiphysiodesis of the distal radius and ulna along with an opening wedge osteotomy and bone grafting of the distal radius to restore radial height and inclination. She healed without complication and with restoration of the normal relationship of the distal radius and ulna. A review of the literature reveals five reported case of distal radial metaphyseal fractures not invloving the physis leading to growth arrest. By comparison, there are 31 reported cases of distal radius physeal arrest following fractures involving the physis. The physician should be aware that common distal radius metaphyseal fractures may rarely lead to growth arrest.

Child↗

Effect of surgical delay on perioperative complications and need for open reduction in supracondylar humerus fractures in children.

This retrospective study examined whether a delay of greater than 12 hours is associated with an increased risk of perioperative complications in the operative treatment of supracondylar humerus fractures in children. Of 150 consecutive children with supracondylar fractures, 50 underwent surgery in less than 12 hours and 100 underwent surgery greater than 12 hours after injury. There was no significant difference between groups in rate of open reduction (P = 0.55), pin tract infection (P = 1.0), iatrogenic nerve injury (P = 1.0), vascular complication (P = 0.33), or compartment syndrome (P = 1.0), including when Gartland type III fractures were analyzed independently. There was no iatrogenic nerve injury, no compartment syndrome, and one pin tract infection in 150 patients. The study confirms previous retrospective studies finding no significant difference in perioperative complications or rate of open reduction in children undergoing early versus delayed surgical treatment of supracondylar humerus fractures.

Child↗

Changes in pelvic rotation after soft tissue and bony surgery in ambulatory children with cerebral palsy.

The authors performed a retrospective review of pelvic rotation in 59 children with cerebral palsy who underwent lower extremity surgery and pre- and postoperative gait analysis. Two groups were studied: a femoral derotation osteotomy (FDRO) group and a soft tissue surgery only (no FDRO) group. Both groups exhibited abnormal pelvic rotation preoperatively and normalization of this abnormal pelvic rotation postoperatively. Though the mean change in pelvic rotation was small (3.3 degrees +/- 6.0 degrees), some patients demonstrated postoperative changes as large as 21 degrees. Variability in pelvic rotation was greater in the no FDRO group than in the FDRO group. Improvement in pelvic rotation occurred both in children with unilateral (hemiplegic) involvement and in those with bilateral (diplegic or quadriplegic) involvement. Surgeons planning lower extremity surgery in children with cerebral palsy should expect improvement in abnormal pelvic rotation in both hemiplegic and diplegic patients, whether or not bony surgery is planned in addition to soft tissue surgery.

Cerebral Palsy↗

Results of tibial rotational osteotomy without concomitant fibular osteotomy in children with cerebral palsy.

A retrospective review was performed of 46 consecutive ambulatory children with cerebral palsy and tibial torsion who underwent 72 distal tibial derotational osteotomies without concomitant fibular osteotomy. The average amount of derotation measured at surgery was 21 +/- 5 degrees. The average change in thigh-foot angle at follow-up was 21 +/- 9 degrees. There were eight perioperative complications (11%): three delayed unions, three superficial wound dehiscences, one case of osteomyelitis, and one superficial pin tract infection. There were no incidences of malunion or nonunion. Preoperative and postoperative three-dimensional gait analysis data were used to determine the effect of distal tibial osteotomy on foot progression angle in seven subjects (11 limbs). Foot progression improved significantly. This study shows that distal tibial osteotomy alone (without concomitant fibular osteotomy) is an effective and safe procedure for correcting and maintaining correction of tibial torsion in patients with cerebral palsy.

Adolescent↗

The contribution of hospital volume, payer status, and other factors on the surgical outcomes of scoliosis patients: a review of 3,606 cases in the State of California.

While volume/outcomes relationships have been shown for several areas of orthopaedics, previous studies have not examined this relationship in the area of scoliosis surgery. The Office of Statewide Planning and Development (OSHPD) California inpatient discharge database was used for a retrospective review of all patients 25 years of age or younger with a diagnosis of scoliosis and a spinal fusion procedure from 1995 to 1999 (n = 3,606). Univariate and multivariate analyses were conducted to determine the effect of various factors on in-hospital mortality, surgical complications, reoperations, and length of stay (LOS). Univariate analyses revealed significant effects of age, sex, illness severity, neuromuscular disease, surgical approach, Medicaid status, and annual hospital volume on outcomes (P < 0.05). After controlling for these factors using multivariate regression, patients insured by Medicaid were found to have a significantly greater odds for complications (P = 0.017) and a significantly increased LOS (P < 0.001) compared with patients with all other sources of payment. Additionally, multivariate regression revealed an inverse relationship between annual hospital volume and likelihood of reoperation, as patients treated at hospitals with annual volumes of 5.1 to 25.0, 25.1 to 50.0, and greater than 50.0 spinal fusions all had approximately half the odds of reoperation (P = 0.042, P = 0.004, and P = 0.028 respectively) as patients treated at hospitals with an annual volume of 5.0 or fewer spinal fusions per year. The current data suggest that being insured with Medicaid in the state of California is associated with poorer outcomes after scoliosis surgery. Additionally, this study documents a volume/outcomes relationship in scoliosis surgery.

Adolescent↗

Pelvic fractures in children: an exploration of practice patterns and patient outcomes.

Pelvic fractures in children represent a unique set of patients for several reasons. Pediatric pelvic fractures are relatively uncommon and the long-term consequences of these fractures and their associated injuries often have a substantial impact on these patients for the rest of their lives. There is significant controversy regarding the appropriate approach toward the management of these injuries. Nevertheless, there is substantial variability in the orthopaedic management of pediatric pelvic fractures, which warrants a closer investigation. A good starting point for addressing some of these issues is to explore the relationship between practice patterns and patient outcomes. More specifically, a study exploring the relationship between the type of centers that treat these unique fractures and patient outcomes can yield some insightful information. In an effort to address these issues, the authors used the National Pediatric Trauma Registry to conduct a retrospective analysis of this unique pediatric population. The main outcome of interest focused on mortality. With respect to patient information, the independent variables involved demographics (gender, age, race), type of injury (penetrating, blunt, crush), presence of head injury, injury severity indices (Injury Severity Score [ISS], Glasgow Coma Scale), and the Functional Independence Measure. After adjusting for confounding and interaction effects between these variables, only ISS and the type of hospital were determined to be significant in predicting survival.

Adolescent↗

Pediatric polytrauma management.

Appropriate care of pediatric polytrauma patients requires the knowledge and expertise of a variety of subspecialists. Though most of pediatric polytrauma patients survive, long-term sequelae are common. The most common causes of long-term functional deficits after pediatric polytrauma involve injuries to the central nervous and musculoskeletal systems. Orthopaedic care of polytrauma patients is important to facilitate early mobilization and care of these children, as well as to minimize late impairment.

Abdominal Injuries↗

Access to orthopaedic care for children with medicaid versus private insurance: results of a national survey.

BACKGROUND: It has been documented that children insured by Medicaid in California have significantly less access to orthopedic care than children with private insurance. Low Medicaid physician reimbursement rates have been hypothesized to be a major factor. The first objective of this study was to examine whether children insured by Medicaid have limited access to orthopedic care in a national sample. The second objective was to determine if state variations in Medicaid physician reimbursement rates correlate with access to orthopedic care. METHODS: Two-hundred fifty orthopedic surgeon's offices, 5 randomly chosen in each of 50 states, were telephoned. Each office called was asked to answer questions to an anonymous, disclosed survey. The survey asked whether the office accepted pediatric patients, whether they accepted children with Medicaid, and whether they limited the number of children that they accepted with Medicaid, and if so why. Each state sets its own rate of physician reimbursement rates that were collected from individual state Medicaid agencies for 3 different CPT codes. The relationship between acceptance of patients with Medicaid and the individual state's Medicaid reimbursement rate was examined. RESULTS: Children with Medicaid insurance had limited access to orthopedic care in 88 of 230 (38%) offices that treat children, and 18% (41/230) of offices would not see a child with Medicaid under any circumstances. Reimbursement rates for CPT codes widely varied by state: 99243 for an outpatient consultation (range, $20-$176.38), 99213 for an established follow-up outpatient visit (range, $6-$77.76), and 25560 for global treatment of a nondisplaced radius and ulna shaft fracture without manipulation (range, $50-$403.94). There was a statistically significant relationship between access to medical care for Medicaid patients and physician reimbursement rates for all 3 CPT codes. CONCLUSIONS: Children insured with Medicaid have limited access to orthopedic care in this nationwide sample. Medicaid physician reimbursement significantly correlates with patient access to medical care. These data may be of value in the ongoing efforts to improve access to medical care for children on Medicaid. The logical inference from this study is that increasing physician reimbursement rates will improve access. In the authors' opinion, reimbursement rates should be made higher than office overhead to effect meaningful change.

Child↗

Back pain and backpacks in school children.

OBJECTIVE: Back pain in adults is common and well studied. In contrast, back pain in children has received comparatively little scientific study, despite recent media attention. The purpose of this study is to see what factors influence the prevalence of back pain in middle school children, with particular attention to the weight of children's backpacks and the availability of school lockers. METHODS: A population-based sample of 1540 children ages 11-14 years in a large metropolitan area was studied. A questionnaire was used to determine presence and severity of back pain, availability of lockers, backpack use, use of 1 or 2 straps to carry backpack, activity limitations due to back pain, and use of pain medication for back pain. Gender, age, weight of the child, and weight of his or her backpack were recorded. Results of scoliosis screening were evaluated with regard to the above information. Data were analyzed using the chi test and univariate or multivariate logistic regression analysis as appropriate. RESULTS: Overall, 37% of the children reported back pain. Backpacks were used by 97% of children, hence there were too few students not using backpacks to treat backpack use as an independent variable. Multivariate analysis found back pain associated with use of a heavier backpack (P=0.001), younger age (P<0.001), female sex (P<0.001), and a positive screening examination for scoliosis (P=0.009). Children with lockers available reported less back pain (P=0.016). The use of 1 or 2 straps to carry the backpack did not have a significant association with back pain (P=0.588). Of the children who reported back pain, 34% limited their activity due to the pain, 14% use medication for pain relief, and 82% believed their backpack either caused or worsened their pain. CONCLUSIONS: The incidence of back pain in early adolescence approaches that seen in adults. Recommendations for an "acceptable" weight of backpacks cannot be made from this study, as the weights of students' backpacks seem directly proportional to the likelihood of back pain. This study identifies 2 factors associated with self-reported back pain in early adolescents that are amenable to change: availability of school lockers and lighter backpacks. These findings may be useful in advising families and influencing school policies.

Adolescent↗

Towards a National Pediatric Musculoskeletal Trauma Outcomes Registry: the Pediatric Orthopaedic Trauma Outcomes Research Group (POTORG) experience.

This study is a pilot effort towards the broader implementation of a national pediatric musculoskeletal trauma outcomes registry. The primary goal of this project is to explore the feasibility of a web-based data acquisition and management platform and to identify catalysts and obstacles to multi-center collaboration. A prospective cohort of children presenting to the Pediatric Emergency Departments with ankle, femur, supracondylar humerus, tibial spine, or open fractures at five clinical centers between October 2001 and March 2003 comprised the study population. Patients were enrolled via the treating orthopaedic resident, using a web-based data acquisition and management system. Orthopaedic attendees were sent an automated reminder to complete a follow-up form one week after treatment, and parents of enrolled children were sent child and parent health questionnaires by e-mail and mail in order to capture health-related quality of life and post-traumatic stress symptoms. A total of 299 patients were enrolled in the study with an average age of 7.3 years. Post-treatment follow-up questionnaires were completed by 39% of the attending orthopaedic surgeons, and by 43% of the enrolled patients or patient's parents. Children old enough to complete health questionnaires scored lower in 5 of 12 functional domains including Physical Function, Role/Social Emotional/Behavioral, Parental Impact-Emotional, Family Activities, and Family Cohesion. Within the subset of patients sustaining femur fractures whose parents completed health questionnaires, 9.5% reported significant post-traumatic stress symptoms. This study demonstrates the potential of a multi-center web-based registry to facilitate the collection of a rich array of pediatric trauma, treatment and patient-based outcomes data, although new regulatory issues regarding patient privacy pose challenges to such an approach.

Child↗

Use of flexible intramedullary nails in pediatric femur fractures.

Flexible intramedullary nails are now routinely used for stabilization of pediatric femur fractures. Few data are available regarding patients' postoperative range of motion, weight-bearing status, activity levels, use of immobilization, and radiographic leg length discrepancy measured via routine scanograms. Patients who underwent placement of flexible intramedullary nails for a pediatric femur fracture at a single institution from 1998 to 2003 were identified retrospectively. Ninety-one patients were identified with 94 femur fractures. The complication rate was 17% for the 94 fractures, with 8 patients requiring an unplanned return to surgery. The complication rate was significantly higher for patients aged 10 years or older (34%) as compared with that for younger patients (9%). Average time to full weight bearing was 10 weeks, time to radiographic union averaged 10.7 weeks, and time to return to preoperative level of activity averaged 4.9 months. Immediate postoperative weight bearing status was nonweight bearing in 57%. Immobilization or support was used postoperatively in 60% of the patients. Postoperatively, patients had minimal loss of range of motion in hip internal and external rotation and knee extension. Hip and knee flexion rapidly improved postoperatively with an average loss of hip flexion of 0 degree by 3 months and an average loss of knee flexion of 4 degrees by 6 months. Postoperatively, limb length discrepancy was greater than 1 cm in 7 patients at 6 months, 11 patients at 12 months, 3 patients at 18 months, and 2 patients at 2 years. Two patients had persistent limb length discrepancy of greater than 2 cm, but only one patient required an epiphysiodesis for his limb length inequality. Although the end results are favorable, complications are relatively frequent, particularly in older children.

Adolescent↗

Insurance status and delay in orthotic treatment in children.

OBJECTIVE: To determine if the type of health insurance is associated with a delay in children obtaining orthoses. METHODS: The medical records of 60 children who were prescribed an ankle-foot orthosis (AFO) or thoracolumbosacral orthosis (TLSO) were retrospectively reviewed. Ten children were randomly chosen with either of 3 types of insurance (government, health maintenance organizations [HMOs], and preferred provider organizations [PPOs]) with an orthosis provided by a single supplier. The time interval between prescription and insurance company authorization was recorded, as well as the interval between prescription and procurement of the orthosis. RESULTS: There were significant differences in the time from prescription to authorization of orthoses between insurance types (P = 0.001) and time from authorization until brace procurement between insurance types (P = 0.01). Children with PPO insurance received authorization for an AFO faster than children with government insurance or an HMO (P < 0.05). Children with government insurance received authorization for a TLSO significantly later than children with PPO insurance (P = 0.004) or HMO insurance (P = 0.03). The difference in time between authorization and procurement of a TLSO in children with PPO insurance (36 days) was strikingly different from that of children with government insurance (123 days) (P = 0.003). DISCUSSION: This study documents that children with government insurance face delays in obtaining orthotic treatment compared with children with PPO insurance. The delay in the procurement of the more expensive brace (TLSO is approximately 4 times the cost of an AFO) correlated to more striking delays in the government-insured population.

Child↗