A Novel Weave Tether Technique for Proximal Junctional Kyphosis Prevention in 71 Adult Spinal Deformity Patients: A Preliminary Case Series Assessing Early Complications and Efficacy.

dc.contributor.author

Rabinovich, Emily P

dc.contributor.author

Buell, Thomas J

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Sardi, Juan P

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Lazaro, Bruno CR

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Shaffrey, Christopher I

dc.contributor.author

Smith, Justin S

dc.date.accessioned

2023-06-16T16:08:39Z

dc.date.available

2023-06-16T16:08:39Z

dc.date.issued

2021-11

dc.date.updated

2023-06-16T16:08:38Z

dc.description.abstract

Background

Proximal junctional kyphosis (PJK) rates may be as high as 69.4% after adult spinal deformity (ASD) surgery. PJK is one of the greatest unsolved challenges in long-segment fusions for ASD and remains a common indication for costly and impactful revision surgery. Junctional tethers may help to reduce the occurrence of PJK by attenuating adjacent-segment stress.

Objective

To report our experience and assess early safety associated with a novel "weave-tether technique" (WTT) for PJK prophylaxis in a large series of patients.

Methods

This single-center retrospective study evaluated consecutive patients who underwent ASD surgery including WTT between 2017 and 2018. Patient demographics, operative details, standard radiographic measurements, and complications were analyzed.

Results

A total of 71 patients (mean age 66 ± 12 yr, 65% women) were identified. WTT included application to the upper-most instrumented vertebrae (UIV) + 1 and UIV + 2 in 38(53.5%) and 33(46.5%) patients, respectively. No complications directly attributed to WTT usage were identified. For patients with radiographic follow-up (96%; mean duration 14 ± 12 mo), PJK occurred in 15% (mean 1.8 ± 1.0 mo postoperatively). Proximal junctional angle increased an average 4° (10° to 14°, P = .004). Rates of symptomatic PJK and revision for PJK were 8.8% and 2.9%, respectively.

Conclusion

Preliminary results support the safety of the WTT for PJK prophylaxis. Approximately 15% of patients developed radiographic PJK, no complications were directly attributed to WTT usage, and the revision rate for PJK was low. These early results warrant future research to assess longer-term efficacy of the WTT for PJK prophylaxis in ASD surgery.
dc.identifier

6360967

dc.identifier.issn

2332-4252

dc.identifier.issn

2332-4260

dc.identifier.uri

https://hdl.handle.net/10161/28063

dc.language

eng

dc.publisher

Ovid Technologies (Wolters Kluwer Health)

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Operative neurosurgery (Hagerstown, Md.)

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10.1093/ons/opab305

dc.subject

Spine

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Humans

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Kyphosis

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Postoperative Complications

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Spinal Fusion

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Retrospective Studies

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Adult

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Aged

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Middle Aged

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Female

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Male

dc.title

A Novel Weave Tether Technique for Proximal Junctional Kyphosis Prevention in 71 Adult Spinal Deformity Patients: A Preliminary Case Series Assessing Early Complications and Efficacy.

dc.type

Journal article

duke.contributor.orcid

Shaffrey, Christopher I|0000-0001-9760-8386

pubs.begin-page

393

pubs.end-page

399

pubs.issue

6

pubs.organisational-group

Duke

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School of Medicine

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Clinical Science Departments

pubs.organisational-group

Orthopaedic Surgery

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Neurosurgery

pubs.publication-status

Published

pubs.volume

21

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