Muscle reorientation as a novel cause of motor weakness after spinal realignment surgery: a hypothesis based on psoas muscle overstretching

Key Points

• To explore how spinal realignment surgery may lead to transient hip flexion weakness due to psoas muscle reorientation.
• Evaluated muscle function post spinal realignment surgery
• Analyzed mechanical changes in psoas muscle alignment after surgery
• Investigated correlation between muscle reorientation and hip flexion weakness.
• Postoperative hip flexion weakness observed in patients
• Weakness occurs without direct nerve or muscle damage
• Spinal alignment changes are linked to muscle rearrangement.