Reliability of Triggered EMG for Prediction of Safety during Pedicle Screw Placement in Adolescent Idiopathic Scoliosis Surgery
Asian Spine Journal
;
: 51-58, 2011.
Artículo
en Inglés
| WPRIM
| ID: wpr-87008
ABSTRACT
STUDY DESIGN:
We performed a prospective study to evaluate the reliability of using triggered electromyography (EMG) for predicting pedicle wall breakthrough during the placement of pedicle screw in adolescent idiopathic scoliosis surgery.PURPOSE:
We wanted to correlate pedicle wall breakthrough with the triggered EMG threshold of stimulation and the postoperative computed tomography (CT) findings. OVERVIEW OF LITERATURE Pedicle wall breakthrough has been reported to be difficult to evaluate by radiographs. Triggered EMG had been found to be a more sensitive test to detect this breakthrough.METHODS:
Seven patients who underwent the insertion of 103 pedicle screws were evaluated. The triggered EMG activity was recorded from several muscles depending on the level of screw placement. The postoperative CT scans were read by a spine surgeon who was a senior fellow in orthopedics, and a musculoskeletal radiologist.RESULTS:
The mean age at surgery was 12.6 years (range, 11 to 17 years). The preoperative mean Cobb angle was 54.7degrees (range, 45 to 65degrees). There were 80 thoracic screws and 23 lumbar screws. All the screws had stimulation thresholds of > or = 6 mA, except 3 screws with the stimulation threshold of or = 6 mA were safe, with 90.3% reliability, as was assessed on the postoperative CT scans.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Ortopedia
/
Escoliosis
/
Columna Vertebral
/
Estudios Prospectivos
/
Electromiografía
/
Músculos
Tipo de estudio:
Estudio observacional
/
Estudio pronóstico
/
Factores de riesgo
Límite:
Adolescente
/
Humanos
Idioma:
Inglés
Revista:
Asian Spine Journal
Año:
2011
Tipo del documento:
Artículo
Similares
MEDLINE
...
LILACS
LIS