Prediction of Admission Costs Following Anterior Cervical Discectomy and Fusion Utilizing Machine Learning.

Study Design: Retrospective case series.

Objective: Predict cost following anterior cervical discectomy and fusion (ACDF) within the 90-day global period using machine learning models.

Background: The incidence of ACDF has been increasing with a disproportionate decrease in reimbursement.

Allograft Versus Autograft in Anterior Cervical Discectomy and Fusion: A Propensity-Matched Analysis.

Objective To compare the 30-day complication rate associated with allograft versus autograft in anterior cervical discectomy and fusion (ACDF) and to determine preoperative factors that may influence complication rate. Methods The American College of Surgeons National Surgical Quality Improvement Program database was retrospectively queried from 2014 to 2017 for all procedures with CPT codes for ACDF (22551). Patients undergoing ACDF with either autograft or allograft were matched by propensity scores based on age, sex, body mass index, and comorbidities.

Surgical management of humeral shaft nonunions. Success of a consistent protocol over 17 years.

Introduction: Surgical treatment of humeral shaft nonunions is characterized by variability of fixation methods, graft choices, and rates of union and iatrogenic radial nerve palsy. The aim of the current study is to evaluate the union rate of humeral shaft aseptic nonunions and the rate of postoperative complications following a consistent management protocol.

Patients And Methods: This is a retrospective review of 41 consecutive adult patients (23 female and 18 male with a mean age of 42 years) with aseptic nonunions of the humeral shaft treated by the senior author in our institution over a 17-year period.

Clinical and Radiographic Outcomes of Lateral Interbody Fusion for Adjacent Segment Degeneration.

Study Design: Retrospective cohort study.

Objective: Assessment of outcomes in patients undergoing lateral interbody fusion as part of the surgical treatment of adjacent segment deterioration after previous lumbar spine fusion.

Methods: Adult patients with previous lumbar posterior spinal fusion who presented with adjacent segment degeneration and stenosis refractory to nonoperative treatment and who underwent lateral lumbar interbody fusion were retrospectively analyzed.

Periosteal turndown flap for posterior occipitocervical fusion: a technique review.

Purpose: Recently, several authors have proposed techniques for improving the fusion rate in pediatric posterior occipitocervical fusion including a variety of implants and the use of bone morphogenetic protein. A technique by Koop et al. using a periosteal flap for occipitocervical arthrodesis was described in 1984.

Walking activity during daily living in children with myelomeningocele.

Purpose: To quantify the walking activity of children with myelomeningocele during daily living.

Method: Walking activity was measured using a StepWatch activity monitor over one week in 47 children with myelomeningocele (27 males; 9 years 11 months SD 2 years 7 months; 18 sacral, 9 low lumbar, 20 mid-high lumbar) and seven children with typical development (5 males; 11 years 1 month SD 1 year 11 months) in a prospective, cross-sectional study. Average total steps per day, number of steps and minutes spent at low, medium and high intensity stepping were evaluated.

Repeat hamstring lengthening for crouch gait in children with cerebral palsy.

Background: Progressive crouch gait occurs in patients with cerebral palsy with increasing age. Hamstring lengthening improves crouch in these patients, but hamstring contractures can recur over time. The purpose of this study was to determine whether revision hamstring lengthening is as effective as primary lengthening in improving crouched gait.