Clinical spine care partnerships between high-income countries and low-and-middle-income countries: A scoping review.

Background: Clinical collaboration between spine professionals in high-income countries (HICs) and low-and-middle-income countries (LMICs) may provide improvements in the accessibility, efficacy, and safety of global spine care. Currently, the scope and effectiveness of these collaborations remain unclear. In this review, we describe the literature on the current state of these partnerships to provide a framework for exploring future best practices.

Ultrasound Shear Wave Elastography Quantitatively Assesses Tension Changes of Supraspinous/Interspinous Ligament Complex Under Varied Loads.

Background: Although interspinous and supraspinous ligaments of the lumbar spine are thought to contribute to spinal stability, little is known about their dynamic biomechanics. We demonstrate that shear wave elastography (SWE) offers a novel technique to noninvasively and quantitatively evaluate posterior spinous ligament complex functional loading and stiffness in different physiologic positions.

Methods: We performed SWE and measured the length of the interspinous/supraspinous ligament complex in cadaveric torsos ( = 5), isolated ligaments ( = 10), and healthy volunteers ( = 9) to obtain length and shear wave velocity measurements.

Increase in surgeons performing outpatient anterior cervical spine surgery leads to a shift in case volumes over time.

Background: Prior studies have demonstrated an increase in the performance of outpatient anterior cervical surgery. The degree to which this increase is due to volume increase per individual surgeon versus increase in individual surgeons performing outpatient cervical surgery is unknown.

Methods: Patients undergoing anterior cervical discectomy and fusion (ACDF) or cervical disk arthroplasty (CDA) between 2010 and 2018 in NY state were identified.

Axial variation in flexural stiffness of plant stem segments: measurement methods and the influence of measurement uncertainty.

Background: Flexural three-point bending tests are useful for characterizing the mechanical properties of plant stems. These tests can be performed with minimal sample preparation, thus allowing tests to be performed relatively quickly. The best-practice for such tests involves long spans with supports and load placed at nodes.

Reassessing the labor curve in nulliparous women.

Objectives: Our purpose was to examine the pattern of labor progression in nulliparous parturients in contemporary obstetric practice.

Study Design: We extracted detailed labor data from 1329 nulliparous parturients with a term, singleton, vertex fetus of normal birth weight after spontaneous onset of labor. Cesarean deliveries were excluded.

U.S. national trends in labor induction, 1989-1998.

Objective: To examine the epidemiology of labor induction in the United States.

Study Design: We used U.S.

Risk factors for early cytologic abnormalities after loop electrosurgical excision procedure.

Objective: To evaluate risk factors for early cytologic abnormalities and recurrent cervical dysplasia after loop electrosurgical excision procedure (LEEP).

Methods: A retrospective analysis was performed of all pathology records for LEEPs performed at our institution from January 1996 through July 1998. Follow-up cytology from 2 through 12 months after LEEP was reviewed.