Bone allografting: an original method for biological osteosynthesis and bone reinforcement in children with osteogenesis imperfecta.

Purpose: Osteogenesis imperfecta (OI) is a genetic disorder responsible for various symptoms including deformities and frequent fractures. Bone allografting is poorly documented in this condition. The objective of this study was to describe our experience and assessments in a consecutive series of OI patients.

Combined gait analysis and radiologic examination in children with X-linked hypophosphatemia.

Background: X-linked hypophosphataemia causes bone deformities and gait abnormalities that tend to worsen with age in the absence of appropriate treatment. However, doctors do not currently use quantitative tools to characterize these symptoms and their possible interactions.

Methods: Radiographs and 3D gait data from 43 non-surgical growing children with X-linked hypophosphataemia were acquired prospectively.

Adolescents' Love Lives: Heterogeneity in Relationship Status Trajectories and Links with Affect.

Romantic experiences are more fluid and heterogeneous during middle adolescence than at any other life stage, but current understanding of this heterogeneity and flux is limited because of imprecise measurement. A sample of 531 adolescents (55% female; 28% non-Hispanic White; 32% Black; 27% Hispanic; 14% Other) recruited from an ongoing birth cohort study (Mean age = 16.7 years, SD = 0.

Radiographic evaluation of ulnar deformity in patients with hereditary multiple osteochondroma and its relationship with radial head dislocation.

Introduction: In patients who have hereditary multiple osteochondroma (HMO), progressive deformity of the forearm skeleton may lead to radial head dislocation. The latter is permanent, painful and causes weakness.

Hypothesis: There is a relationship between the amount of ulnar deformity and the presence of radial head dislocation in patients with HMO.

Adolescent Partnership Quality and Emotional Health: Insights from an Intensive Longitudinal Study.

Prior research has documented an association between adolescents' romantic experiences and poor emotional health. However, lack of intensive longitudinal measurement and an emphasis on negative affect have limited understanding about the extent to which adolescent relationship quality influences the emotional health of adolescents in partnerships, including the potential benefits of high-quality partnerships. Previous research has also been limited in its ability to account for factors that select adolescents into lower or higher quality partnerships.

Prospective Analysis of Muscle Adiposity in Children With X-linked Hypophosphatemic Rickets vs Control Children.

Context: Children with X-linked hypophosphatemic (XLH) rickets have muscle weakness that severely impairs their function. Intermuscular and intramuscular adipose tissue (IMAT and intraMAT, respectively) may contribute to this muscle weakness.

Objective: This work aimed to compare IMAT and intraMAT in XLH children vs typically developing (TD) children.

Peripheral nerve injuries of the upper extremity in a pediatric population: Outcomes and prognostic factors.

Peripheral nerve injuries of the upper limb are rare in children and poorly documented. The aim of this retrospective study was to analyze long-term sensory and motor results, and to determine predictive factors for recovery after surgery. Eleven children, with a mean age at injury of 9.

Using Paradata to Evaluate Youth Participation in a Digital Diary Study.

We analyze recruitment, access and longitudinal response paradata from a year-long intensive longitudinal study (mDiary) that used a mobile-optimized web app to administer 25 bi-weekly diaries to youth recruited from a birth cohort study. Analyses investigate which aspects of teen recruitment experiences are associated with enrollment and longitudinal response patterns; whether compliance behavior of teens who require multiple invitations to enroll differs from that of teens who enroll on the first invitation; and what personal and social circumstances are associated with different longitudinal compliance patterns. Latent Class Analysis (LCA) is used to derive longitudinal compliance classes.

Adolescents' Partner Search in the Digital Age: Correlates and Characteristics of Relationships Initiated Online.

Digital technology and social media platforms have transformed the ways adolescents communicate and cultivate romantic relationships, but few studies consider whether relationships initiated online are less salutary than those formed in person. A sample of 531 adolescents (Mean age = 16.7 years, SD = 0.

Quantitative analysis of lower limb and pelvic deformities in children with X-linked hypophosphatemic rickets.

Introduction: X-linked hypophosphatemia (XLH) rickets mainly causes leg deformities in children that can worsen as they grow. We hypothesized that quantifying the bone parameters will help to document and monitor these deformities in children with XLH.

Methods: Thirty-five growing children affected by XLH were included in this cross-sectional study.

Tibial Sliding Elastic Nailing Technique in Moderate-to-Severe Osteogenesis Imperfecta: Long-term Outcomes.

Background: Osteosynthesis of leg fractures and deformities in children with osteogenesis imperfecta should align the skeleton and overcome its fragility during growth with a telescopic effect. A high rate of mechanical complications is associated with various surgical techniques described in the literature.

Purpose: The objective of this work was to assess the long-term clinical and radiologic outcomes of tibial sliding elastic nailing technique.

Transfer of distal peroneus longus tendon to tibialis anterior by retrograde fixation to treat spastic equinovarus foot in adults: Surgical Technique and Preliminary Results.

We describe a retrograde transfer of the distal tendon of the peroneus longus (PL) onto the tibialis anterior (TA) tendon to treat spastic equinovarus foot (SEVF) in adults. The fact that the distal tendon insertions of the PL and TA are a mirror image makes them antagonists. The aim is to divert the distal tendon in front the inactive distal PL tendon, by fixing to the TA in the middle third of the lower leg.

Well though-out introduction of percutaneous Achilles tenotomy during functional treatment of congenital talipes equinovarus: Which indications produce the best results?

Introduction: Percutaneous Achilles tenotomy (PAT) was recently added to functional treatment of congenital talipes equinovarus (aka clubfoot). The aim of this study was to determine the relevance of a carefully chosen radiological criterion for the PAT indication and to evaluate its results.

Hypothesis: When the tibiocalcaneal angle (aTiCa) is larger than 75° at 4 months, doing PAT will improve the results of the functional method in the medium term and will reduce the surgery rate.

'In-Out-In' K-wires sliding in severe tibial deformities of osteogenesis imperfecta: a technical note.

Severe infant osteogenesis imperfecta requires osteosynthesis. Intramedullary tibia's osteosynthesis is a technical challenge given the deformity and the medullar canal's narrowness. We describe an extramedullary technique: 'In-Out-In' K-wires sliding.

One-stage circumferential limb ring constriction release and direct circular skin closure in amniotic band syndrome: a 14-case series.

The aim of the present study was to report results of direct circular suture after 1-stage circumferential resection of limb ring constriction in amniotic band syndrome. A multicentre retrospective study included 14 patients with amniotic band syndrome (mean age, 13.3 months) operated on between 2004 and 2019 by circumferential release of ≥1 ring constriction.

Adolescent Relationship Quality: Is There an Intergenerational Link?

Objective: This study examines intergenerational continuities in relationship instability, general relationship quality, and intimate partner violence (IPV) between mothers and adolescents.

Background: A growing body of literature has observed similarities in relationship quality between parents and their adult offspring. Less attention has focused on whether intergenerational continuities are present in adolescent relationships.

Using Bi-Weekly Surveys to Portray Adolescent Partnership Dynamics: Lessons From a Mobile Diary Study.

Partnership formation is an important developmental task for adolescents, but cross-sectional and periodic longitudinal studies have lacked the measurement precision to portray partnership stability and flux and to capture the range of adolescent partnership experiences. This article assesses the promises and challenges of using bi-weekly mobile diaries administered over the course of a year to study adolescent partnership dynamics. Descriptive findings illustrate the potential of bi-weekly diaries for both capturing the longitudinal complexity and fluidity of adolescent partnerships as well as for reducing retrospection biases.

Low birthweight among immigrants in Australia, the United Kingdom, and the United States.

Immigrant women are less likely than their native-born counterparts to give birth to a low birthweight infant in the United States, and length of U.S. residence shrinks nativity differences in rates of low birthweight.

Institutional and ethnic variations in postgraduate enrollment and completion.

Using the B&B:93/03 longitudinal cohort survey, we investigate (1) whether and how much variations in the timing of enrollment, the type of undergraduate institution attended, and type of graduate program pursued contribute to observed racial and ethnic differentials in post-baccalaureate enrollment, and (2) whether the observed enrollment differentials carry over to degree attainment. Dynamic event history methods that account both for the timing of matriculation and the hazard of enrolling reveal that compared to whites underrepresented minorities enroll earlier and also are more likely to enroll in doctoral and advanced professional degree programs relative to nonenrollment. Our results reveal sizable differences in the cumulative probability of advanced degree attainment according to undergraduate institutional mission, with graduates from research institutions enjoying a decided advantage over liberal arts college graduates.

Thirteenth Annual Lecture in Education Research: Public Education and the Social Contract: Restoring the Promise in an Age of Diversity and Division.

Building on the premise that closing achievement gaps is an economic imperative both to regain international educational supremacy and to maintain global economic competitiveness, I ask whether it is possible to rewrite the social contract so that education is a fundamental right-a statutory guarantee-that is both uniform across states and federally enforceable. I argue that the federal government was complicit in aggravating educational inequality by not guaranteeing free, public education as a basic right during propitious political moments; by enabling the creation of a segregated public higher education system; by relegating the Department of Education and its predecessors to a secondary status in the federal administration, thereby compromising its enforcement capability; and by proliferating incremental reforms while ignoring the unequal institutional arrangements that undermine equal opportunity to learn. History shows that a strong federal role can potentially strengthen the educational social contract.

Marriage-Market Constraints and Mate-Selection Behavior: Racial, Ethnic, and Gender Differences in Intermarriage.

Despite theoretical consensus that marriage markets constrain mate selection behavior, few studies directly evaluate how local marriage market conditions influence intermarriage patterns. Using data from the American Community Survey, we examine what aspects of marriage markets influence mate selection; assess whether the associations between marriage market conditions and intermarriage are uniform by gender and across pan-ethnic groups; and investigate the extent to which marriage market conditions account for group differences in intermarriage patterns. Relative group size is the most salient and consistent determinant of intermarriage patterns across pan-ethnic groups and by gender.