Volume of spinopelvic muscles: comparison between adult spinal deformity patients and asymptomatic subjects
Article dans une revue avec comité de lecture
Purpose: Spinal muscles are a major component of posture in spinal pathologies and changes to the spine with aging. Specifically, spinopelvic muscles may compensate for underlying anomalies such as pelvic retroversion, knee flexion, and cervical or thoracic spinal balance abnormalities. To increase understanding between muscular characteristics and compensatory mechanisms, this study aimed to compare the volume of spinopelvic muscles in adults with a spinal deformity (ASD) to a control group of well-aligned adult subjects. Methods: Twenty-eight lumbar ASD patients [Cobb angle > 20°, > 40 years old (yo)] were prospectively included and compared to 35 normal subjects divided into 2 different groups: one group of young (Y) subjects (n = 23, < 20 yo) and one group of old (O) subjects (n = 12, > 40 yo). All subjects had a fat/water separation MRI (from C7 to the knees). Volumetric 3D reconstructions of 30 spinopelvic muscles were performed and muscles volumes were compared. Results: Mean age was 60 ± 16 yo, without significant differences between the ASD and O groups (57 ± 11 yo). Age and BMI were smaller in the young group. Mean Cobb angle of the ASD group was 45 ± 11°. Comparing the ASD and O groups, total muscular volume was similar; however, erector spinae (0.24 ± 0.06 vs 0.68 ± 0.08 dm3, p = 0.001), iliopsoas (0.49 ± 0.09 vs 0.60 ± 0.09 dm3, p = 0.001) and obliquus (0.42 ± 0.08 vs 0.50 ± 0.08 dm3, p = 0.02) were significantly smaller in the ASD group. Comparing the Y and the ASD groups, total muscular volume was higher in the Y group than the ASD group (+ 3.3 dm3, p = 0.003) and erector spinae (0.24 ± 0.06 vs 0.74 ± 0.08, p = 0.0001), gluteus medius (0.51 ± 0.07 vs 0.62 ± 0.13, p = 0.01) and vastus lateralis (1.33 ± 0.21 vs 2.08 ± 0.29, p = 0.001) were significantly bigger in the Y group. Conclusion: This is the first study to compare volume of spinopelvic muscles between ASD patients and a control group without spinal deformity. Our results demonstrate that muscular degeneration has a double origin: aging and deformity. Erector spinae, iliopsoas, and obliquus are the muscles most affected by degeneration.
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Relationships between radiographic parameters and spinopelvic muscles in adult spinal deformity patients Article dans une revue avec comité de lectureFERRERO, Emmanuelle; SKALLI, Wafa; LAFAGE, Virginie; MAILLOT, Cédric; CARLIER, Robert; FEYDY, Antoine; FELTER, Adrien; KHALIFE, Marc; GUIGUI, Pierre (Springer Verlag, 2020)Introduction While the clinical impact of coronal and sagittal alignment in adult spinal deformity (ASD) patients (pts) is established, there is a paucity of data in terms of axial plane deformity and potential association ...
Three-dimensional reconstruction using stereoradiography for evaluating adult spinal deformity: a reproducibility study. Article dans une revue avec comité de lectureFERRERO, Emmanuelle; LAFAGE, Renaud; VIRA, Shaleen; ROHAN, Pierre-Yves; OREN, Jonathan; DELSOLE, Edward; GUIGUI, Pierre; SCHWAB, Frank; LAFAGE, Virginie; SKALLI, Wafa (Springer Verlag, 2016)PURPOSE: In addition to the sagittal alignment, impact of transverse plane parameters (TPP) and rotatory subluxation on patients reported outcomes were highlighted. One of the hypotheses for genesis of degenerative scoliosis ...
Clinical and stereoradiographic analysis of adult spinal deformity with and without rotatory subluxation Article dans une revue avec comité de lectureFERRERO, Emmanuelle; LAFAGE, Renaud; CHALLIER, Vincent; DIEBO, Bassel G.; GUIGUI, Pierre; MAZDA, Keyvan; SCHWAB, Frank; SKALLI, Wafa; LAFAGE, Virginie (Elsevier Masson, 2015)Introduction: In degenerative adult spinal deformity (ASD), sagittal malalignment and rotatory sublux-ation (RS) correlate with clinical symptomatology. RS is defined as axial rotation with lateral listhesis.Stereoradiography, ...
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Radiographic Outcomes of Adult Spinal Deformity Correction : A Critical Analysis of Variability and Failures Across Deformity Patterns Article dans une revue avec comité de lectureMOAL, Bertrand; SCHWAB, Franck; AMES, Christopher P.; SMITH, Justin; RYAN, Devon; PRAVEEN, Mummaneni; TERRAN, Jamie; KLINEBERG, Eric; HART, Robert; OHENEBA, Boachie-Adjei; SHAFFREY, Christopher; SKALLI, Wafa; LAFAGE, Virginie (Springer Verlag, 2014)Study Design: Multicenter, prospective, consecutive, surgical case series from the International Spine Study Group. Objectives: To evaluate the effectiveness of surgical treatment in restoring spinopelvic (SP) alignment. ...