Investigating Radiological Criteria and Clinical Findings in Patients Before and After Smith-Peterson Osteotomy to Correct Adult Spine Deformity

Mirzashahi, Babak; Dehghani Firoozabadi, Mohammad Javad; Panahi, Saeid; Hajialigol, Amirhossein; Azarsina, Salman; Tiotour, Mehdi; Hajtalebi, Farnaz; Basij, Romina

doi:10.22034/ijos.2025.544474.1144

Investigating Radiological Criteria and Clinical Findings in Patients Before and After Smith-Peterson Osteotomy to Correct Adult Spine Deformity

Document Type : Original Article

Authors

Babak Mirzashahi ¹

mohammad javad dehghani firoozabadi ²

Saeid Panahi ¹

Amirhossein Hajialigol ³

Salman Azarsina ⁴

Mehdi tiotour ⁵

Farnaz Hajtalebi ³

Romina Basij ³

¹ Departments of Orthopedic Surgery, Imam Khomeini Hospital Complex, Tehran University of Medical Science, Tehran, Iran.

² Department of Orthopedic Surgery, Clinical Research Development Unit of Shahid Madani Hospital, Alborz University of Medical Sciences, Karaj, Iran.

³ Student Research Committee, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran.

⁴ Orthopedic Surgeon, Department of Orthopedic Surgery, Clinical Research Development Unit of Shahid Madani Hospital, Alborz University of Medical Sciences, Karaj, Iran

⁵ Orthopedic resident, Student Research Committee, School of Medicine, Department of Orthopedic Surgery, Clinical Research Development Unit of Shahid Madani Hospital, Alborz University of Medical Sciences, Karaj, Iran

https://doi.org/10.22034/ijos.2025.544474.1144

Abstract

Abstract
Introduction: The aim of this study is to investigate the radiographic and clinical findings in patients before and after Smith-Peterson osteotomy to correct adult spine deformity.
Materials & Methods: This is a case series study. Data be prepared and extracted retrospectively from patients' records. Inclusion criteria were age >18 years, American Society of Anesthesiology (ASA) risk class III or less, and sagittal spine deformity within three years. All the patients had pre-operative full standing digital spine radiography. Radiographic and clinical parameters were extracted from the patients' files before the operation and 1 month after the operation. Demographic and surgical and clinical information: information was obtained for each patient. The information from the questionnaire was coded and entered SPSS software. The level of significance was considered less than 5%.
Results & Discussion: A total of 10 patients met the conditions for entering the study and were examined. The amount of change in SAV before and after correction of deformity post-surgery decreased significantly (P<0.0001), the amount of Pelvic Incidence increased from 51.7 to 52.5 after surgery, which is not statistically significant(p=0.269). Pelvic tilt decreased from 28.7 to 23.5 after surgery (P=0.002). Sacral slope increased from 23.5 to 29.4 (p=0.002). Lumbar Lordosis also increased from 8.5 to 42.1 after surgery (p<0.0001). The rate of Thoracic Kyphosis also increased significantly from 24.4 to 25.2 after surgery (P=0.003). There was a significant decrease in VAS from 7.7 to 3.1 after surgery (P<0.00001).
Conclusion: The spinal deformity correction by the Smith-Peterson osteotomy method can improve the radiographic as well as clinical parameters in short term.

Keywords

Spine, Osteotomy, Radiography

Subjects