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Dive into the research topics where David D. Spence is active.

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Featured researches published by David D. Spence.


Current Reviews in Musculoskeletal Medicine | 2012

The role for hip surveillance in children with cerebral palsy

Benjamin J. Shore; David D. Spence; Hk Graham

Spastic hip displacement is the second most common deformity seen in children with cerebral palsy (CP), and the long-term effects can be debilitating. Progressive hip displacement leading to dislocation can result in severe pain as well as impaired function and quality of life. Recent population-based studies have demonstrated that a child’s Gross Motor Functional Classification System (GMFCS) level is most predictive for identifying hips “at-risk” for progressive lateral displacement. As a result, in many developed countries, hip surveillance has now been adopted as an integral piece of the comprehensive care puzzle for the management of children with spastic hip displacement. This paper reviews the spectrum of treatments available for progressive hip displacement, examines the current literature on the success of hip surveillance, and illustrates an example of a current hip surveillance program stratified by the GMFCS level.


Journal of Pediatric Orthopaedics | 2016

Outcomes and complications of Tibial tubercle fractures in pediatric patients: A systematic review of the literature

Juan Pretell-Mazzini; Derek M. Kelly; Jeffrey R. Sawyer; Eva M.A. Esteban; David D. Spence; William C. Warner; James H. Beaty

Background: Systematic review of the literature was done to determine (1) the frequency and type of associated injuries, (2) frequency of concomitant Osgood-Schlatter disease, (3) methods of treatment, (4) functional and radiologic outcomes according to fracture type, and (5) complications of tibial tubercle fractures in pediatric patients. Methods: A systematic review of the English literature from 1970 to 2013 included 23 eligible articles reporting 336 fractures with a mean follow-up of 33.56 months (range, 5.7 to 115 mo). Fractures were classified by a comprehensive system that included characteristics of previous systems. Clinical outcomes were assessed by a qualitative scale (excellent/fair/poor), the rate of return to preinjury activity, and knee range of motion. Rate of fracture healing, associated injuries (patellar/quadriceps tendon avulsion and meniscal tears), compartment syndrome, and complications were also recorded. Results: Mean age at surgery was 14.6 years and the most common fracture reported was type III (50.6%). The overall associated injury rate was 4.1%, most common in type III fractures (4.7%). Compartment syndrome was present in 3.57% of cases. Open reduction and internal fixation were done in 98% of surgical cases. Rates of return to preinjury activity and knee range of motion were 98%, regardless of the type of fracture. Fracture consolidation was achieved in 99.4% of cases. Overall complication rate was 28.3%; removal of an implant because of bursitis (55.8%) was most common. Tenderness/prominence (17.9%) and refracture (6.3%) were also common. Conclusions: Treatment of tibial tubercle fractures in adolescents produced good clinical and radiologic results regardless of fracture type, which was more related to potential complications. Fractures with intra-articular involvement tended to present with more associated injuries and to have fair functional outcomes, suggesting that advanced imaging may be justified with these fractures. Complications could be more common than expected without a significant effect on final outcome. Finally, there is a need for longer follow-up to determine long-term outcomes. Level of Evidence: Level III—systematic review of level III/IV studies.


Journal of Pediatric Orthopaedics | 2012

Locked intramedullary nailing in the treatment of femoral shaft fractures in children younger than 12 years of age: indications and preliminary report of outcomes.

D. Joshua Miller; Derek M. Kelly; David D. Spence; James H. Beaty; William C. Warner; Jeffrey R. Sawyer

Background: Although flexible intramedullary nailing is a popular treatment option for femoral shaft fractures in juvenile and young adolescent patients, it may not be appropriate in some patients because of patient size and/or fracture configuration. Methods: Retrospective review over a 3-year period identified 17 skeletally immature patients (18 fractures) with femoral shaft fractures treated with noncannulated rigid locked intramedullary nailing because of a length-unstable fracture or patient overweight or obesity. The 14 males and 3 females had an average age of 10 years at the time of injury (range, 7.6 to 11.9 y). Their average weight was 38.3 kg (range, 22.7 to 52 kg), with an average body mass index of 18.9 (range, 13.9 to 26.9). Results: All fractures united at an average of 13 weeks, with no osteonecrosis, malalignment, malunion, or hardware failure. Conclusions: Preliminary results suggest that noncannulated, rigid, locked intramedullary nails can be used safely and effectively for selective fixation of femoral shaft fractures in skeletally immature patients younger than 12 years of age. Level of Evidence: Level IV.


Journal of Pediatric Orthopaedics | 2014

Accessibility and quality of online information for pediatric orthopaedic surgery fellowships.

Austin R. Davidson; Robert F. Murphy; David D. Spence; Derek M. Kelly; William C. Warner; Jeffrey R. Sawyer

Background: Pediatric orthopaedic fellowship applicants commonly use online-based resources for information on potential programs. Two primary sources are the San Francisco Match (SF Match) database and the Pediatric Orthopaedic Society of North America (POSNA) database. We sought to determine the accessibility and quality of information that could be obtained by using these 2 sources. Methods: The online databases of the SF Match and POSNA were reviewed to determine the availability of embedded program links or external links for the included programs. If not available in the SF Match or POSNA data, Web sites for listed programs were located with a Google search. All identified Web sites were analyzed for accessibility, content volume, and content quality. Results: At the time of online review, 50 programs, offering 68 positions, were listed in the SF Match database. Although 46 programs had links included with their information, 36 (72%) of them simply listed http://www.sfmatch.org as their unique Web site. Ten programs (20%) had external links listed, but only 2 (4%) linked directly to the fellowship web page. The POSNA database does not list any links to the 47 programs it lists, which offer 70 positions. On the basis of a Google search of the 50 programs listed in the SF Match database, web pages were found for 35. Of programs with independent web pages, all had a description of the program and 26 (74%) described their application process. Twenty-nine (83%) listed research requirements, 22 (63%) described the rotation schedule, and 12 (34%) discussed the on-call expectations. A contact telephone number and/or email address was provided by 97% of programs. Twenty (57%) listed both the coordinator and fellowship director, 9 (26%) listed the coordinator only, 5 (14%) listed the fellowship director only, and 1 (3%) had no contact information given. Conclusions: The SF Match and POSNA databases provide few direct links to fellowship Web sites, and individual program Web sites either do not exist or do not effectively convey information about the programs. Clinical Relevance: Improved accessibility and accurate information online would allow potential applicants to obtain information about pediatric fellowships in a more efficient manner.


Journal of Pediatric Orthopaedics | 2016

Osteonecrosis After Femoral Neck Fractures in Children and Adolescents: Analysis of Risk Factors.

David D. Spence; Jon-Paul P. DiMauro; Patricia E. Miller; Michael P. Glotzbecker; Daniel Hedequist; Benjamin J. Shore

Background: The most serious complication of femoral neck fractures in children and adolescents is osteonecrosis. Although a number of factors have been implicated in the development of osteonecrosis, no specific cause-and-effect relationship has been determined. The primary purpose of this study was to determine the prevalence of osteonecrosis in children and adolescents after femoral neck fractures and to identify risk factors for its development. Methods: This retrospective review identified 70 patients between the ages of 1.3 and 18.1 years who were treated for a femoral neck fracture between 2000 and 2011 at a single level I pediatric trauma center and followed until clinical and radiographic union. Demographic information, injury event details, type of surgical treatment, associated injuries, time from injury to treatment, and postoperative alignment were recorded from chart and radiographic review. The primary outcome was the presence of osteonecrosis, which was determined by review of available imaging. Multivariable logistic regression analysis tested age, time to treatment, type of fixation, mechanism of injury, postoperative alignment, and capsular decompression as possible risk factors for the development of osteonecrosis. Results: Osteonecrosis occurred in 20 (29%) of the 70 patients. The median time to diagnosis of osteonecrosis was 7.8 months. Multivariable predictors of osteonecrosis included fracture displacement (P=0.01) and fracture location (P=0.02). Patient age, type of fixation, mechanism of injury, capsular decompression, postoperative alignment, and performance of reduction were not predictive of osteonecrosis after femoral neck fracture. Finally, time to treatment also was found to be a positive predictor of osteonecrosis (P=0.004), with osteonecrosis more likely in patients treated in less than 24 hours, but this finding is likely due to confounding because injury severity was closely linked to time to treatment. Conclusions: Regardless of the treatment, the prevalence of osteonecrosis after femoral neck fractures remains high. Recognizing factors that are predictive of the development of osteonecrosis can help surgeons counsel patients and families appropriately about the risk of this complication. Level of Evidence: Therapeutic Level III—retrospective comparative study.


Journal of Pediatric Orthopaedics | 2016

Changes in the Treatment of Pediatric Femoral Fractures: 15-Year Trends From United States Kids' Inpatient Database (KID) 1997 to 2012.

Sameer Naranje; Stewart Mg; Derek M. Kelly; Jones Tl; David D. Spence; William C. Warner; James H. Beaty; Sawyer

Background: The options for treating femoral fractures in children and adolescents have evolved over the last 2 decades to include a variety of nonoperative and operative methods. The purpose of this study was to identify changes in the types of treatment for pediatric femoral fractures in the United States from 1997 to 2012. Methods: From discharge estimates for 1997, 2000, 2003, 2006, 2009, and 2012 in the Kids’ Inpatient Database, data were extracted using the International Classification of Diseases, 9th revision, and Clinical Modification for pediatric femoral fracture treatments. Patients included were 0 to 17 years old and were categorized into 5 age groups: younger than 1, 1 to 4, 5 to 9, 10 to 14, and 15 to 17 years. Results: A total of 74,483 estimated discharges were recorded for pediatric patients with femoral fractures in the database for years 1997, 2000, 2003, 2006, 2009, and 2012. A total of 12,986 pediatric femoral fractures were estimated for 1997 and 9813 for 2012, which was statistically different (P<0.0001). Significantly fewer fractures were treated with closed reduction alone in 2012 than in 1997 in age groups 5 to 9, 10 to 14, and 15 to 17 years. Children aged 5 to 9 had more frequent open reduction and internal fixation in 2012 than in 1997, whereas adolescents aged 15 to 17 had less frequent open reduction and internal fixation in 2012 than in 1997. Conclusions: Although the number of femoral shaft fractures overall has decreased, the frequency of operative treatment has increased significantly in patients 5 to 9 years of age. Knowledge of these trends can guide educational efforts and resource allocation, but further study is necessary to determine procedure-specific (eg, nailing, plating, external fixation) trends and their clinical and economic impacts. Level of Evidence: Level III—case series.


Journal of Orthopaedic Trauma | 2017

Reliability of Radiographic Assessments of Adolescent Midshaft Clavicle Fractures by the FACTS Multicenter Study Group

Ying Li; Kyna S. Donohue; Christopher B. Robbins; Andrew T. Pennock; Henry B. Ellis; Jeffrey J. Nepple; Nirav K. Pandya; David D. Spence; Samuel Clifton Willimon; Benton E. Heyworth

Objectives: There is a recent trend toward increased surgical treatment of displaced midshaft clavicle fractures in adolescents. The primary purpose of this study was to evaluate the intrarater and interrater reliability of clavicle fracture classification systems and measurements of displacement, shortening, and angulation in adolescents. The secondary purpose was to compare 2 different measurement methods for fracture shortening. Methods: This study was performed by a multicenter study group conducting a prospective, comparative, observational cohort study of adolescent clavicle fractures. Eight raters evaluated 24 deidentified anteroposterior clavicle radiographs selected from patients 10–18 years of age with midshaft clavicle fractures. Two clavicle fracture classification systems were used, and 2 measurements for shortening, 1 measurement for superior–inferior displacement, and 2 measurements for fracture angulation were performed. A minimum of 2 weeks after the first round, the process was repeated. Intraclass correlation coefficients were calculated. Results: Good to excellent intrarater and interrater agreement was achieved for the descriptive classification system of fracture displacement, direction of angulation, presence of comminution, and all continuous variables, including both measurements of shortening, superior–inferior displacement, and degrees of angulation. Moderate agreement was achieved for the Arbeitsgemeinschaft für Osteosynthesefragen classification system overall. Mean shortening by 2 different methods were significantly different from each other (P < 0.0001). Conclusions: Most radiographic measurements performed by investigators in a multicenter, prospective cohort study of adolescent clavicle fractures demonstrated good-to-excellent intrarater and interrater reliability. Future consensus on the most accurate and clinically appropriate measurement method for fracture shortening is critical.


Journal of Pediatric Orthopaedics | 2016

Uniplanar Versus Taylor Spatial Frame External Fixation For Pediatric Diaphyseal Tibia Fractures: A Comparison of Cost and Complications.

Benjamin J. Shore; Jon-Paul P. DiMauro; David D. Spence; Patricia E. Miller; Michael P. Glotzbecker; Samantha A. Spencer; Daniel Hedequist

Background: The purpose of this study was to compare the outcomes and cost variations between uniplanar (UNI) and Taylor Spatial Frame (TSF) external fixation for unstable pediatric tibial diaphyseal fractures. Methods: We performed an IRB approved, retrospective review of 44 diaphyseal tibial fractures in 42 children treated with external fixation (16 TSF and 28 UNI) between 2003 and 2011, at a single level 1 pediatric trauma center. Data on demographic, clinical, radiographic, treatment cost, and complication differences were analyzed between the 2 groups. The Student t tests, Fisher’s exact tests, &khgr;2 trend tests, logistic regression, and a cost analysis comparison was used to assess the differences. Results: The mean age in both groups was 13 years (range: 6 to 18 y TSF, 9 to 17 y UNI). The mean follow-up was 8 months (TSF) and 13 months (UNI). According to the AO classification, there were 28 type A, 13 type B, and 3 type C fractures with no significant difference between the 2 groups (P=0.69). Total time in the fixator was not different between the 2 groups (UNI 14 wk, TSF 12 wk, P=0.10), but time to union was less in the TSF group (UNI 16 wk, TSF 13 wk, P<0.01). There were no differences in the final radiographic alignment between the groups. The UNI group experienced more complications (7 pin-site infections and 9 reoperations) compared with 4 pin-site infections and 2 reoperations in the TSF group. A cost analysis revealed significant differences in equipment cost (UNI frame=


Journal of Pediatric Orthopaedics | 2014

Intraobserver and interobserver reliability and the role of fracture morphology in classifying femoral shaft fractures in young children.

Norfleet B. Thompson; Derek M. Kelly; William C. Warner; Jeremy K. Rush; Alice Moisan; W. Rick Hanna; James H. Beaty; David D. Spence; Jeffrey R. Sawyer

5074 vs. TSF frame=


Journal of Pediatric Orthopaedics | 2014

Levels of Evidence in the Journal of Pediatric Orthopaedics: Update and Comparison to the Journal of Bone and Joint Surgery.

Robert F. Murphy; Cibulas Am; Sawyer; David D. Spence; Derek M. Kelly

10,675; P<0.0001); however, after corrected cost analysis with calculated return to the operating room for complications, there was no difference in cost of treatment (UNI treatment=

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Derek M. Kelly

University of Tennessee Health Science Center

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William C. Warner

University of Tennessee Health Science Center

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Benjamin J. Shore

Boston Children's Hospital

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Alice Moisan

Boston Children's Hospital

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Andrew T. Pennock

Boston Children's Hospital

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Daniel Hedequist

Boston Children's Hospital

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Henry B. Ellis

Texas Scottish Rite Hospital for Children

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