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Chen YS, Lin YH, Wu YC, Shih CM, Chen KH, Lee CH, Lu WH, Pan CC. Radiographic and clinical outcomes of robot-assisted pedicle screw instrumentation for adolescent idiopathic scoliosis. Front Surg 2024; 11:1344802. [PMID: 38712338 PMCID: PMC11070498 DOI: 10.3389/fsurg.2024.1344802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 04/10/2024] [Indexed: 05/08/2024] Open
Abstract
Introduction Pedicle screw instrumentation (PSI) serves as the widely accepted surgical treatment for adolescent idiopathic scoliosis (AIS). The accuracy of screw positioning has remarkably improved with robotic assistance. Nonetheless, its impact on radiographic and clinical outcomes remains unexplored. This study aimed to investigate the radiographic and clinical outcomes of robot-assisted PSI vs. conventional freehand method in AIS patients. Methods Data of AIS patients who underwent PSI with all pedicle screws between April 2013 and March 2022 were included and retrospectively analyzed; those with hybrid implants were excluded. Recruited individuals were divided into the Robot-assisted or Freehand group according to the technique used. Radiographic parameters and clinical outcome measures were documented. Results In total, 50 patients (19, Freehand group; 31, Robot-assisted group) were eligible, with an average age and follow-up period of 17.6 years and 60.2 months, respectively, and female predominance (40/50, 80.0%). The correction rates of Cobb's angles for both groups were significant postoperatively. Compared to freehand, the robot-assisted technique achieved a significantly reduced breech rate and provided better trunk shift and radiographic shoulder height correction with preserved lumbar lordosis, resulting in significantly improved visual analog scale scores for back pain from the third postoperative month. Conclusion Overall, robot-assisted PSI provides satisfactory radiographic and clinical outcomes in AIS patients.
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Affiliation(s)
- Yuan-Shao Chen
- Department of Orthopedic Surgery, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Yu-Hsien Lin
- Department of Orthopedic Surgery, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Yun-Che Wu
- Department of Orthopedic Surgery, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Cheng-Min Shih
- Department of Orthopedic Surgery, Taichung Veterans General Hospital, Taichung, Taiwan
- College of Medicine, National Chung Hsing University, Taichung, Taiwan
- Department of Physical Therapy, Hung Kuang University, Taichung, Taiwan
| | - Kun-Huei Chen
- Department of Orthopedic Surgery, Taichung Veterans General Hospital, Taichung, Taiwan
- Office of Research and Development, National Chung Hsing University, Taichung, Taiwan
- Department of Computer Science and Information Engineering, Providence University, Taichung, Taiwan
| | - Cheng-Hung Lee
- Department of Orthopedic Surgery, Taichung Veterans General Hospital, Taichung, Taiwan
- College of Medicine, National Chung Hsing University, Taichung, Taiwan
- Department of Food Science and Technology, Hung Kuang University, Taichung, Taiwan
| | - Wen-Hsien Lu
- Department of Orthopedic Surgery, Feng Yuan Hospital, Ministry of Health and Welfare, Taichung, Taiwan
| | - Chien-Chou Pan
- Department of Orthopedic Surgery, Taichung Veterans General Hospital, Taichung, Taiwan
- Department of Rehabilitation Science, Jenteh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan
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Hwang CJ, Lee JY, Lee DH, Cho JH, Lee CS, Lee MY, Yoon SJ. Novel Screw Placement Method for Extremely Small Lumbar Pedicles in Scoliosis. J Clin Med 2024; 13:1115. [PMID: 38398428 PMCID: PMC10888630 DOI: 10.3390/jcm13041115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/23/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
Study Design: Consecutive case series. Objective: To propose a screw placement method in patients with extremely small lumbar pedicles (ESLPs) (<2 mm) to maintain screw density and correction power, without relying on the O-arm navigation system. Summary of Background Data: In scoliosis surgery, ESLPs can hinder probe passage, resulting in exclusion or substitution of the pedicle screws with a hook. Screw density affects correction power, making it necessary to maximize the number of screw placements, especially in the lumbar curve. Limited studies provide technical guidelines for screw placement in patients with ESLPs, independent of the O-arm navigation system. Methods: We enrolled 19 patients who underwent scoliosis correction surgery using our novel screw placement method for ESLPs. Clinical, radiological, and surgical parameters were assessed. After posterior exposure of the spine, the C-arm fluoroscope was rotated to obtain a true posterior-anterior view and both pedicles were symmetrically visualized. An imaginary pedicle outline was presumed based on the elliptical or linear shadow from the pedicle. The screw entry point was established at a 2 (or 10) o'clock position in the presumed pedicle outline. After adjusting the gear-shift convergence, both cortices of the transverse process were penetrated and the tip was advanced towards the lateral vertebral body wall, where an extrapedicular screw was placed with tricortical fixation. Results: Out of 90 lumbar screws in 19 patients, 33 screws were inserted using our novel method, without correction loss or complications during an average follow-up period of 28.44 months, except radiological loosening of one screw. Conclusions: Our new extrapedicular screw placement method into the vertebral body provides an easy, accurate, and safe alternative for scoliosis patients with ESLPs without relying on the O-arm navigation system. Surgeons must consider utilizing this method to enhance correction power in scoliosis surgery, regardless of the small size of the lumbar pedicle.
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Affiliation(s)
- Chang-Ju Hwang
- Department of Orthopedic Surgery, Scoliosis Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea (J.-H.C.)
| | - Joo-Young Lee
- Department of Orthopedic Surgery, Dong-A Medical Center, University of Dong-A College of Medicine, Busan 49201, Republic of Korea
| | - Dong-Ho Lee
- Department of Orthopedic Surgery, Scoliosis Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea (J.-H.C.)
| | - Jae-Hwan Cho
- Department of Orthopedic Surgery, Scoliosis Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea (J.-H.C.)
| | - Choon-Sung Lee
- Department of Orthopedic Surgery, Scoliosis Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea (J.-H.C.)
| | - Mi-Young Lee
- Department of Orthopedic Surgery, Scoliosis Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea (J.-H.C.)
| | - So-Jung Yoon
- Department of Orthopedic Surgery, Scoliosis Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea (J.-H.C.)
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Wu N, Liu L, Chen G, Wang S, Yang Y, Wu Z, Zhang TJ. The effect of pedicle screw instrumentation at a young age on upper thoracic vertebra and canal development. Spine J 2023; 23:1358-1364. [PMID: 37209967 DOI: 10.1016/j.spinee.2023.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 03/29/2023] [Accepted: 05/02/2023] [Indexed: 05/22/2023]
Abstract
BACKGROUND CONTEXT Pedicle screws are widely used in spinal surgeries. Pedicle screw fixation has shown better clinical effects than other techniques by providing steady fixation from the posterior arch to the vertebral body. However, there are several concerns about the impact of pedicle screw instrumentation insertion on vertebral development in young children, including early closure of the neurocentral cartilage (NCC). The effect of pedicle screw insertion in an early age on further growth of the upper thoracic spine is still unclear. PURPOSE This study aimed to evaluate the impact of pedicle screw insertion on further growth of the upper thoracic vertebra and spinal canal. STUDY DESIGN A retrospective case study. PATIENT SAMPLE Twenty-eight patients. OUTCOME MEASUREMENTS X-ray and CT parameters including length, height and area of the vertebrae and spinal canal were manually measured. METHODS Twenty-eight patients who underwent pedicle screw fixation (T1-T6) before the age of 5 years from March 2005 to August 2019 at Peking Union Medical College Hospital were recruited, and records were retrospectively reviewed. Vertebral body and spinal canal parameters were measured at instrumented and adjacent noninstrumented levels and compared using statistical methods. RESULTS Ninety-seven segments met the inclusion criteria (average age at instrumentation 44.57 months, range from 23-60 months). Thirty-nine segments had no screws, and 58 had at least one screw. There was no significant difference between the preoperative and final follow-up values of the measurement of vertebral body parameters. No significant difference was observed between the growth rates in levels with or without screws in pedicle length, vertebral body diameter, or spinal canal parameters. CONCLUSION Pedicle screw instrumentation in the upper thoracic spine does not cause a negative effect on the development of the vertebral body and spinal canal in children younger than 5 years old.
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Affiliation(s)
- Nan Wu
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China; Beijing Key Laboratory for Genetic Research of Skeletal Deformity, Beijing, 100730, China; Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences, Beijing, 100730, China.
| | - Lian Liu
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China; Beijing Key Laboratory for Genetic Research of Skeletal Deformity, Beijing, 100730, China; Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences, Beijing, 100730, China; Department of Emergency Surgery, Qilu Hospital of Shandong University, Jinan, Shandong Province, People's Republic of China
| | - Guilin Chen
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China; Beijing Key Laboratory for Genetic Research of Skeletal Deformity, Beijing, 100730, China; Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences, Beijing, 100730, China; Graduate School of Peking Union Medical College, Beijing, 100730, China
| | - Shengru Wang
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China; Beijing Key Laboratory for Genetic Research of Skeletal Deformity, Beijing, 100730, China; Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Yang Yang
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China; Beijing Key Laboratory for Genetic Research of Skeletal Deformity, Beijing, 100730, China; Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Zhihong Wu
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China; Beijing Key Laboratory for Genetic Research of Skeletal Deformity, Beijing, 100730, China; Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences, Beijing, 100730, China; Medical Research Center, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Terry Jianguo Zhang
- Department of Orthopedic Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China; Beijing Key Laboratory for Genetic Research of Skeletal Deformity, Beijing, 100730, China; Key Laboratory of Big Data for Spinal Deformities, Chinese Academy of Medical Sciences, Beijing, 100730, China.
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Gomez-Rice A, Capdevila-Bayo M, Núñez-Pereira S, Haddad S, Vila-Casademunt A, Pérez-Grueso F, Kleinstück F, Obeid I, Alanay A, Pellise F, Pizones J. A 5-year follow-up of the effect of corrective surgery in young adults with idiopathic scoliosis. Spine Deform 2023; 11:605-615. [PMID: 36607558 DOI: 10.1007/s43390-023-00642-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 12/31/2022] [Indexed: 01/07/2023]
Abstract
PURPOSE The purpose of this study was to determine mid-long-term outcomes (5 years) following surgery for young adult idiopathic scoliosis (YAdIS). METHODS This is a retrospective review of a prospective, multicenter adult deformity database including patients operated on idiopathic scoliosis by a single posterior approach, age at surgery between 19 and 29 (considered young adults), and 5-year follow-up. Demographic, radiographic and PROMS were analyzed preoperatively, at 2 years and at final follow-up. RESULTS Forty-two patients were included. Mean preoperative major curve angle was 59.65 ± 18.94. Main coronal curve initial correction was 56.38%, with 6% loss at 5 years. From baseline to 5 years after surgery, there was improvement in all PROMs (P < 0.004)-especially self-image-, except NRS-leg pain. This improvement was present at 6 months for all PROMs except for functional outcomes (SRS-Function and ODI) in which the improvement took place between 6 months and 2 years. In the 2- to 5-year follow-up period, no significant changes were seen in any PROMs. The percentage of patients reaching MCID from baseline at 5 years was: 75% for SRS-image, 45% for SRS-pain, 47.5% for SRS-function, 51.3% for SRS-mental, 42.5% for SRS-total and 15.4% for ODI. Patients reaching PASS at 5 years were: 88.1% for SRS-image, 81% for SRS-pain, 92.9% for SRS-function, 57.1% for SRS-mental, 88.1% for SRS-total, 92.7% for ODI and 69% for NRS pain. 11 minor and 4 major complications were identified. CONCLUSION YAdIS surgery resulted in an early and significant improvement in PROMs, especially for self-image, significantly reaching MCID and PASS thresholds. These results were maintained during long-term (5-year) follow-up.
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Affiliation(s)
- Alejandro Gomez-Rice
- Hospital Universitario Ramón y Cajal, Carretera de Colmenar Viejo Km 9, 100, 28034, Madrid, Spain.
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