Volume 10, Issue 3 (In-Press 2023)
JROS 2023, 10(3): 0-0 |
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Chehrassan M, Nikouei F, Shakeri M, Valiolahpour Amiri A, Yaqubnejad M, Ameri E et al . Evaluation of Shoulder Balance in Lenke Type 2 Adolescent Idiopathic Scoliosis Undergoing Surgery: A Single Institution Case Series. JROS 2023; 10 (3)
URL: http://jros.iums.ac.ir/article-1-2245-en.html
URL: http://jros.iums.ac.ir/article-1-2245-en.html
Mohammadreza Chehrassan1 
, Farshad Nikouei1 , Mohammadreza Shakeri1 , Ali Valiolahpour Amiri 1, Mahdi Yaqubnejad1 , Ebrahim Ameri1 , Hasan Ghandhari1
, Farshad Nikouei1 , Mohammadreza Shakeri1 , Ali Valiolahpour Amiri 1, Mahdi Yaqubnejad1 , Ebrahim Ameri1 , Hasan Ghandhari1
1- Bone and Joint Reconstruction Research Center, Shafa Orthopedic Hospital, Iran University of Medical Sciences, Tehran, Iran
Abstract: (80 Views)
Background: Surgical correction of Lenke type 2 adolescent idiopathic scoliosis (AIS) presents challenges, particularly in selecting the upper instrumented vertebra (UIV) within the proximal thoracic (PT) curve. Although including the PT curve in fusion is standard practice, the impact of UIV selection on postoperative shoulder balance remains uncertain.
Method: This retrospective cohort study included 12 Lenke type 2 AIS patients who underwent corrective surgery. Data encompassing demographic details, radiological features, and shoulder balance were collected preoperatively, postoperatively, and during follow-up. Statistical analyses evaluated changes in radiographic angles and shoulder balance.
Results: Significant reductions were observed in Cobb angles, sagittal alignment, shoulder balance, and lumbar lordosis postoperatively. Median shoulder balance deviation decreased from preoperative to final follow-up. UIV device type showed no significant association with shoulder balance changes. However, UIV inclination demonstrated a median change of 4.5 degrees, with no significant association with the device used.
Conclusion: Preoperative lateral shoulder balance strongly influences postoperative balance, surpassing the impact of UIV selection. Our findings underscore the importance of considering shoulder balance when selecting UIV for Lenke type 2 AIS patients.
Method: This retrospective cohort study included 12 Lenke type 2 AIS patients who underwent corrective surgery. Data encompassing demographic details, radiological features, and shoulder balance were collected preoperatively, postoperatively, and during follow-up. Statistical analyses evaluated changes in radiographic angles and shoulder balance.
Results: Significant reductions were observed in Cobb angles, sagittal alignment, shoulder balance, and lumbar lordosis postoperatively. Median shoulder balance deviation decreased from preoperative to final follow-up. UIV device type showed no significant association with shoulder balance changes. However, UIV inclination demonstrated a median change of 4.5 degrees, with no significant association with the device used.
Conclusion: Preoperative lateral shoulder balance strongly influences postoperative balance, surpassing the impact of UIV selection. Our findings underscore the importance of considering shoulder balance when selecting UIV for Lenke type 2 AIS patients.
Keywords: Adolescent idiopathic scoliosis, Lenke classification, Spinal fusion, Upper instrumented vertebra, Shoulder balance, Radiographic analysis
Type of Study: Research Article |
Subject:
Spine surgery
Received: 2024/05/19 | Accepted: 2024/05/29 | Published: 2023/08/7
Received: 2024/05/19 | Accepted: 2024/05/29 | Published: 2023/08/7
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