The study is a retrospective cohort analysis focusing on the relationship between sarcopenia and complications following adult spinal deformity (ASD) surgery, specifically proximal junctional disease (PJD).
Researchers assessed the psoas muscle area using preoperative imaging to determine if sarcopenia could predict the development of proximal junctional kyphosis (PJK) and proximal junctional failure (PJF).
Results indicated that lower psoas cross-sectional areas were significantly associated with higher rates of PJK (62.5%) and PJF (37.5%), suggesting that sarcopenia is a modifiable risk factor that should be included in preoperative assessments for spine surgery.