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Patient self-assessment of appearance is improved more by all pedicle screw than by hybrid constructs in surgical treatment of adolescent idiopathic scoliosis

STUDY DESIGN: A multicenter prospective cohort study. OBJECTIVE: To compare the effect of all pedicle screw versus hybrid constructs on patient self-assessment of appearance after posterior spinal fusion with instrumentation for adolescent idiopathic scoliosis (AIS). This will contribute to future cost-effective analyses on surgical management of AIS. SUMMARY OF BACKGROUND DATA: For surgical management of AIS, the Spinal Appearance Questionnaire (SAQ) and the Scoliosis Research Society outcomes instrument (SRS-30) are reliable surveys of patient satisfaction, but neither tool has been used to assess outcome by implant type. METHODS: Patients received either all pedicle screws or hybrid instrumentation. Self-assessment of appearance pre- and after surgery was measured by SAQ and SRS-30. Statistical significance was evaluated through P values (P < 0.01 in the SAQ, P < 0.05 in the SRS-30) and effect sizes. RESULTS: There were 93 patients in the all pedicle screw cohort and 61 in the hybrid cohort. There were no significant preoperative differences between the cohorts in the SAQ or SRS-30. All pedicle screw patients tended to see more improvement in shoulder level than hybrid patients in 2 separate SAQ questions (P = 0.025, Cohen's D = 0.20; P = 0.013, D = 0.24). The screw patients also tended to have better scores than hybrid patients in the category, 'looking better in clothes' (P = 0.017, V = 0.24) at 2 years postoperative. All pedicle screw patients self-reported significant greater improvement than hybrid patients in the SRS-30 Appearance and Mental domains (P = 0.016, ES = 0.038; P = 0.005, ES = 0.051). There were no significant differences between cohorts in age, gender, baseline curve, or major curve magnitude. CONCLUSION: All pedicle screw constructs lead to better self-assessment of appearance in operative treatment of AIS, as determined by SAQ and SRS-30 Keywords : Adolescent,Age Factors,Bone Screws,California,Child,Cohort Studies,economics,Female,Follow-Up Studies,Humans,instrumentation,Male,methods,Patient Satisfaction,Patients,Prospective Studies,psychology,Scoliosis,Self-Assessment,Shoulder,Spinal Fusion,standards,surgery,Surveys and Questionnaires,Universities,, Selfassessment,Appearance,Improved, trigger point treatment

Date of Publication : 2011 Feb 1

Authors : Smucny M;Lubicky JP;Sanders JO;Carreon LY;Diab M;

Organisation : School of Medicine, University of California, San Francisco, CA 94143-0728, USA

Journal of Publication : Spine (Phila Pa 1976 )

Pubmed Link : https://www.ncbi.nlm.nih.gov/pubmed/21248593

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