Enhancing Recovery in Severe Adolescent Idiopathic Scoliosis (AIS) Patients With Cobb Angle ≥90 Degrees Undergoing Single-staged Posterior Spinal Fusion (PSF): Evaluating the Feasibility of Rapid Recovery Protocol (RRP).

Study Design: Retrospective study.

Objective: To assess the feasibility and outcome of rapid recovery protocol (RRP) in severe adolescent idiopathic scoliosis (AIS) patients with Cobb angle ≥90 degrees underwent single-staged posterior spinal fusion (PSF).

Summary Of Background Data: Corrective surgeries in severe AIS patients entail a higher risk of prolonged operation, excessive bleeding, extended hospital stay, and higher complication rates compared with non-severe AIS patients.

A mathematical model for estimating the intraoperative lowest instrumented vertebra (LIV) tilt angle using preoperative supine left side-bending (LSB) radiographs in adolescent idiopathic scoliosis (AIS) patients with lenke type 1 and 2 non-AR curves.

Purpose: To devise a mathematical model for estimating the intraoperative lowest instrumented vertebra (LIV) tilt angle using preoperative supine left side-bending (LSB) radiographs in adolescent idiopathic scoliosis (AIS) patients with Lenke type 1 and 2 (non-AR curves), and to review its clinical and radiological outcomes.

Methods: The mathematical model for the adjusted LSB LIV tilt angle (α) measured preoperatively, was expressed as the sum of preoperative LSB LIV tilt angle (x) and LIV displacement angle (y) (α = x + y). This model was validated through inter-rater and intra-rater analysis in Part I of the study.

Prediction of postoperative curve correction based on the supine radiographs for adult idiopathic scoliosis patients.

Background Context: Preoperative supine radiographs are mandatory in the new adult idiopathic scoliosis (AdIS) classification. Supine radiographs are easily reproducible and highly predictive of side bending radiographs. However, few studies evaluated the use of supine radiographs in predicting postoperative curve correction after posterior spinal fusion (PSF) in AdIS.

Analysis of duration of different stages of surgery in posterior spinal fusion (PSF) for adolescent idiopathic scoliosis (AIS) patients: comparison between severe versus non-severe AIS.

Purpose: Prolonged surgical duration in severe adolescent idiopathic scoliosis (AIS) patients is associated with increased blood loss and perioperative complications. The aim of this study was to compare the duration of each stage of posterior spinal fusion (PSF) in severe AIS (Cobb angle ≥ 90°) with non-severe AIS patients. This analysis will identify the most time-consuming stage of PSF and help surgeons formulate strategies to shorten operative time.

A comparison study on hindfoot correction, Achilles tendon length and thickness between clubfoot patients treated with percutaneous Achilles tendon tenotomy versus casting alone using Ponseti method.

Purpose: To compare the hindfoot correction using clinical and ultrasonography assessment in clubfoot patients undergoing Achilles tendon tenotomy with patients corrected with casting alone.

Method: A prospective observational study on idiopathic clubfoot patients less than 3 months old. Clinical assessment was done using hindfoot Pirani score and measurement of ankle dorsiflexion.