Longitudinal comparison of direct medical cost, radiological and health-related quality of life treatment outcomes between traditional growing rods and magnetically controlled growing rods from preoperative to maturity

Abstract Background Magnetically controlled growing rods (MCGR) have replaced traditional growing rods (TGR) in the past decade, however, a comparison of their direct costs and treatment outcomes based on real longitudinal data is lacking. This study aims to compare the direct cost and treatment out...

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Main Authors: Prudence Wing Hang Cheung, Carlos King Ho Wong, Jewel T. Sadiang-abay, Sin Ting Lau, Jason Pui Yin Cheung
Format: Article
Language:English
Published: BMC 2022-08-01
Series:BMC Musculoskeletal Disorders
Subjects:
Online Access:https://doi.org/10.1186/s12891-022-05750-7
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author Prudence Wing Hang Cheung
Carlos King Ho Wong
Jewel T. Sadiang-abay
Sin Ting Lau
Jason Pui Yin Cheung
author_facet Prudence Wing Hang Cheung
Carlos King Ho Wong
Jewel T. Sadiang-abay
Sin Ting Lau
Jason Pui Yin Cheung
author_sort Prudence Wing Hang Cheung
collection DOAJ
description Abstract Background Magnetically controlled growing rods (MCGR) have replaced traditional growing rods (TGR) in the past decade, however, a comparison of their direct costs and treatment outcomes based on real longitudinal data is lacking. This study aims to compare the direct cost and treatment outcomes between TGR and MCGR, whilst incorporating complications, reoperations and changes in health-related quality of life (HRQoL) throughout the entire treatment course. Methods Patients with early onset scoliosis (EOS) who underwent initial growing rod surgery between 2003 and 2016 at a tertiary scoliosis clinic were studied with longitudinal data. Accumulated direct medical costs were calculated based on the unit cost of surgeries of each TGR and MCGR, costs incurred for any rod exchange or remedial surgery for post-operative complication. Treatment outcomes were evaluated via: Patient’s HRQoL using SRS-22r questionnaire, and radiological parameters (including major curve correction, spine length gains, spinal balance) throughout the treatment until maturity. Results A total of 27 EOS patients (16 MCGR, 11 TGR) were studied. Total direct cost of index surgery for MCGR was HKD$223,108 versus lower cost of HKD$135,184 for TGR (p < 0.001). At 2–3 years post-index surgery, accumulative total direct medical cost of MCGR and TGR became most comparable (TGR:MCGR ratio = 1.010) and had reached neutrality between the two groups since. Radiological parameters had no intergroup differences at maturity. For HRQoL, TGR group had shown the trend of less pain (domain score mean difference: 0.53, p = 0.024) post-index surgery and better self-appearance (domain score mean difference: 1.08, p = 0.017) before fusion. Higher satisfaction with treatment (domain score mean difference: 0.76, p = 0.029) was demonstrated by TGR patients at fusion/maturity. MCGR had negative (r s  = -0.693) versus TGR’s positive (r s  = 0.989) correlations (p < 0.05) of cost and SRS-22r total scores at 2–3 years post-index surgery. Conclusions From index surgery to maturity, TGR demonstrated better satisfaction with treatment by patients and comparable overall HRQoL with MCGR during the treatment course, as MCGR did not show apparent benefit despite less surgeries and cost neutrality between the two groups at 2–3 years post-index surgery.
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spelling doaj.art-912bedb6ffa94463a04aec8fdb3649642022-12-22T02:15:46ZengBMCBMC Musculoskeletal Disorders1471-24742022-08-0123111610.1186/s12891-022-05750-7Longitudinal comparison of direct medical cost, radiological and health-related quality of life treatment outcomes between traditional growing rods and magnetically controlled growing rods from preoperative to maturityPrudence Wing Hang Cheung0Carlos King Ho Wong1Jewel T. Sadiang-abay2Sin Ting Lau3Jason Pui Yin Cheung4Department of Orthopaedics and Traumatology, The University of Hong KongDepartment of Family Medicine and Primary Care, The University of Hong KongDepartment of Orthopaedics and Traumatology, The University of Hong KongDepartment of Orthopaedics and Traumatology, The University of Hong KongDepartment of Orthopaedics and Traumatology, The University of Hong KongAbstract Background Magnetically controlled growing rods (MCGR) have replaced traditional growing rods (TGR) in the past decade, however, a comparison of their direct costs and treatment outcomes based on real longitudinal data is lacking. This study aims to compare the direct cost and treatment outcomes between TGR and MCGR, whilst incorporating complications, reoperations and changes in health-related quality of life (HRQoL) throughout the entire treatment course. Methods Patients with early onset scoliosis (EOS) who underwent initial growing rod surgery between 2003 and 2016 at a tertiary scoliosis clinic were studied with longitudinal data. Accumulated direct medical costs were calculated based on the unit cost of surgeries of each TGR and MCGR, costs incurred for any rod exchange or remedial surgery for post-operative complication. Treatment outcomes were evaluated via: Patient’s HRQoL using SRS-22r questionnaire, and radiological parameters (including major curve correction, spine length gains, spinal balance) throughout the treatment until maturity. Results A total of 27 EOS patients (16 MCGR, 11 TGR) were studied. Total direct cost of index surgery for MCGR was HKD$223,108 versus lower cost of HKD$135,184 for TGR (p < 0.001). At 2–3 years post-index surgery, accumulative total direct medical cost of MCGR and TGR became most comparable (TGR:MCGR ratio = 1.010) and had reached neutrality between the two groups since. Radiological parameters had no intergroup differences at maturity. For HRQoL, TGR group had shown the trend of less pain (domain score mean difference: 0.53, p = 0.024) post-index surgery and better self-appearance (domain score mean difference: 1.08, p = 0.017) before fusion. Higher satisfaction with treatment (domain score mean difference: 0.76, p = 0.029) was demonstrated by TGR patients at fusion/maturity. MCGR had negative (r s  = -0.693) versus TGR’s positive (r s  = 0.989) correlations (p < 0.05) of cost and SRS-22r total scores at 2–3 years post-index surgery. Conclusions From index surgery to maturity, TGR demonstrated better satisfaction with treatment by patients and comparable overall HRQoL with MCGR during the treatment course, as MCGR did not show apparent benefit despite less surgeries and cost neutrality between the two groups at 2–3 years post-index surgery.https://doi.org/10.1186/s12891-022-05750-7MCGRTGREarly onset scoliosisDirect costHRQoLTreatment outcomes
spellingShingle Prudence Wing Hang Cheung
Carlos King Ho Wong
Jewel T. Sadiang-abay
Sin Ting Lau
Jason Pui Yin Cheung
Longitudinal comparison of direct medical cost, radiological and health-related quality of life treatment outcomes between traditional growing rods and magnetically controlled growing rods from preoperative to maturity
BMC Musculoskeletal Disorders
MCGR
TGR
Early onset scoliosis
Direct cost
HRQoL
Treatment outcomes
title Longitudinal comparison of direct medical cost, radiological and health-related quality of life treatment outcomes between traditional growing rods and magnetically controlled growing rods from preoperative to maturity
title_full Longitudinal comparison of direct medical cost, radiological and health-related quality of life treatment outcomes between traditional growing rods and magnetically controlled growing rods from preoperative to maturity
title_fullStr Longitudinal comparison of direct medical cost, radiological and health-related quality of life treatment outcomes between traditional growing rods and magnetically controlled growing rods from preoperative to maturity
title_full_unstemmed Longitudinal comparison of direct medical cost, radiological and health-related quality of life treatment outcomes between traditional growing rods and magnetically controlled growing rods from preoperative to maturity
title_short Longitudinal comparison of direct medical cost, radiological and health-related quality of life treatment outcomes between traditional growing rods and magnetically controlled growing rods from preoperative to maturity
title_sort longitudinal comparison of direct medical cost radiological and health related quality of life treatment outcomes between traditional growing rods and magnetically controlled growing rods from preoperative to maturity
topic MCGR
TGR
Early onset scoliosis
Direct cost
HRQoL
Treatment outcomes
url https://doi.org/10.1186/s12891-022-05750-7
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