Eduardo Hevia

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STUDY DESIGN Cross-sectional study with level III of evidence. OBJECTIVE To describe different anthropometric and body composition parameters of adolescent girls with adolescent idiopathic scoliosis (AIS), comparing them with the standards of a healthy age-matched population. SUMMARY OF BACKGROUND DATA Body growth and development of adolescent girls(More)
STUDY DESIGN A prospective clinical study of high thoracic pedicle screws monitored with triggered electromyographic (EMG) testing. OBJECTIVE To evaluate the sensitivity of recording intercostal muscle potentials to assess upper thoracic screw placement. SUMMARY OF BACKGROUND DATA Triggered EMG testing from rectus muscle recordings, which are innervated(More)
STUDY DESIGN A comparative study of 2 cohort series of surgically treated patients with adolescent idiopathic scoliosis (AIS) who were retrospectively analyzed, with level III evidence. OBJECTIVE To compare the effect on the cervical sagittal balance of 2 AIS correction constructs, namely, all pedicle screws and hybrid instrumentation using hooks and(More)
STUDY DESIGN A new stimulus-triggered electromyography (EMG) test for detecting stimulus diffusion to contralateral intercostal muscles during thoracic pedicle screw placement was assessed in a porcine model. OBJECTIVE To determine if electromyographic thresholds in the intercostal muscles of both sides of the thorax could discriminate thoracic pedicle(More)
BACKGROUND CONTEXT Present studies concerning the safety and reliability of neurophysiological monitoring during thoracic pedicle screw placement remain inconclusive, and therefore, universally validated threshold levels that confirm osseous breakage of the instrumented pedicles have not been properly established. PURPOSE The objective of this work was to(More)
STUDY DESIGN This study retrospectively compares the clinical and radiologic outcomes of unilateral transforaminal lumbar interbody fusion (TLIF) with those of transvertebral screw fixation of the lumbosacral spine in high-grade spondylolisthesis. OBJECTIVE To examine the outcome and perioperative complications of unilateral TLIF and compare those results(More)
To contrast the clinical and radiologic outcomes and adverse events of anterior cervical discectomy and fusion (ACDF) with a single cervical disc arthroplasty design, the polyurethane on titanium unconstrained cervical disc (PTUCD). This is a systematic review of randomized clinical trials (RCT) with evidence level I–II reporting clinical outcomes. After a(More)
STUDY DESIGN A cross-sectional study of nonconsecutive cases (level III evidence). OBJECTIVE In a series of young patients with thoracic scoliosis who were treated with pedicle screw constructs, data obtained from triggered electromyography (t-EMG) screw stimulation and postoperative computed tomographic scans were matched to find different threshold(More)
This experimental study in pigs was aimed at evaluating spinal growth disorders after partial arrest of the vertebral epiphyseal plates (EP) and neurocentral cartilages (NCC). Unilateral and multisegmental single or combined lesions of the physeal structures were performed by electrocogulation throughout a video-assisted thoracoscopical approach. Thirty(More)