Publications by authors named "R H Knopp"

Background Context: Returning to recreational sporting activities after adult spinal deformity (ASD) correction may significantly impact the patient's perceived quality of life.

Purpose: This study sought to characterize participation in sporting activities before and after ASD surgery, and to identify factors associated with impaired return to sports.

Study Design: Cross-sectional survey and retrospective review of prospectively collected data.

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Article Synopsis
  • The study used a retrospective cohort design to investigate the impact of bracing on proximal junctional kyphosis (PJK) after adult spinal deformity correction.
  • Starting in 2021, patients who underwent lower thoracic fusions were braced for the first 6 weeks post-surgery, and a non-braced group was matched for comparison based on various factors.
  • Results indicated that braced patients experienced significantly lower rates of PJK at one year compared to non-braced patients, suggesting the potential benefits of extension bracing and paving the way for future studies.
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Purpose: To assess the characteristics and risk factors for decisional regret following corrective adult spinal deformity (ASD) surgery at our hospital.

Methods: This is a retrospective cohort study of a single-surgeon ASD database. Adult patients (> 40 years) who underwent ASD surgery from May 2016 to December 2020 with minimum 2-year follow-up were included (posterior-only, ≥ 4 levels fused to the pelvis) (n = 120).

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Study Design: This is a retrospective case-control study.

Objectives: The objectives of this study are to identify (1) risk factors for delayed ambulation following adult spinal deformity (ASD) surgery and (2) complications associated with delayed ambulation.

Methods: One-hundred and ninety-one patients with ASD who underwent posterior-only fusion (≥5 levels, LIV pelvis) were reviewed.

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Study Design: Retrospective cohort study.

Objective: This study aimed to evaluate the association between nerve lengthening after adult deformity correction and motor deficits dervied from the upper lumbar plexus or femoral nerve.

Summary Of Background Data: Adult spinal deformity (ASD) surgery is associated with high rates of neurological deficits.

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