Renal positional changes in spinal-cord-injured patients

Area of Science:

• Nephrology
• Urology
• Neurology

Background:

• Spinal cord injury (SCI) can lead to significant urinary tract complications.
• Altered renal (kidney) position and axis in SCI patients have not been previously well-documented.

Purpose of the Study:

• To investigate and identify potential changes in renal position and axis in patients with spinal cord injuries.
• To compare renal positioning in SCI patients with a control group of healthy individuals.

Main Methods:

• Retrospective review of urograms from 55 patients with spinal cord injuries.
• Comparison of renal anatomical parameters (renal angle, distance of lower poles to midline) between SCI patients and normal controls.

Main Results:

• Statistically significant differences (p < 0.001) were observed in renal positioning between SCI patients and controls.
• Kidneys in SCI patients were found to be positioned more medially and vertically.
• No significant difference in renal positioning was noted between paraplegic and quadriplegic patients.

Conclusions:

• Spinal cord injury is associated with altered renal positioning, characterized by a more medial and vertical orientation.
• Psoas muscle atrophy, secondary to spinal cord injury, is hypothesized as the primary cause of these observed renal positional changes.