HIGH RES OLUTION MRI OF PARASPINAL MUSCLES

这个子项目是许多研究子项目中的一个 由NIH/NCRR资助的中心赠款提供的资源。子项目和 研究者（PI）可能从另一个NIH来源获得了主要资金， 因此可以在其他CRISP条目中表示。所列机构为 研究中心，而研究中心不一定是研究者所在的机构。 椎体后外侧融合前后椎旁肌的高分辨MRI研究 通过中线入路的后路脊柱融合技术是有效的，但会导致椎旁肌肉剥离和牵开器引起的肌内压力升高造成严重的肌肉损伤。 最近的研究表明，通过旁正中入路插入的微创扩张式牵开器产生的牵开压力明显低于通过中线入路插入的开放式牵开器。这项多中心研究的目的是量化椎旁肌肉损伤，并评价微创（MIS）与开放后外侧融合术的临床结局。 和收缩压力研究。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. Hi-Res MRI of Paraspinal Muscles Before and After Posterolateral Fusion of Vertebral Bodies Posterior spinal fusion techniques through a midline approach are effective but result in significant muscle damage from paraspinal muscle stripping and elevated intramuscular pressure from retractors. Recent studies have shown a minimally invasive expanding retractor inserted through a paramedian approach generates significantly less retraction pressure than an open retractor inserted through a midline approach. The purpose of this multi-center study is to quantify paraspinal muscle damage and evaluate clinical outcome of minimally invasive (MIS) versus open posterolateral fusion. and retraction pressure studies.