Evidence map›Paper›PMID 37553471›Full record

ArticleEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2023

Do peri-operative parathyroid hormone (PTH) analogues improve bone density and decrease mechanical complications in spinal deformity correction?-a minimum 2-year radiological study measuring Hounsfield units.

Andrew Chung, Jerry Robinson, David Gendelberg, Jose Jimenez, Anita Anand, Arya Rao, Bardia Khandehroo, Babak Khandehroo, Sheila Kahwaty, Neel Anand

Erratum issuedOpen access · hybridAbstract read
PubMed Publisher
In one paragraph

Article in European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.9field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
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  5. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 4 institutions in 1 country.

Andrew ChungDepartment of Orthopedics, Banner Health, 13995 W Statler Blvd #200, Surprise, Phoenix, AZ, 85374, USA. Andrew.chung2@bannerhealth.com.ORCID http://orcid.org/0000-0003-3942-9595
Jerry RobinsonDepartment of Orthopedics, University of Pittsburg Medical Center (UPMC) Harrisburg, Harrisburg, PA, USA.
David GendelbergDepartment of Orthopedics, University of California, San Francisco (UCSF) Orthopedics Trauma Institute, San Francisco, CA, USA.
Jose JimenezDepartment of Orthopedics, Central Florida Bone & Joint Institute, Orange City, FL, USA.
Anita AnandDepartment of Orthopedics, Cedars-Sinai Spine Center, Los Angeles, CA, USA.
Arya RaoDepartment of Orthopedics, Cedars-Sinai Spine Center, Los Angeles, CA, USA.
Bardia KhandehrooNew York Medical College, Valhalla, NY, 10595, USA.
Babak KhandehrooDepartment of Orthopedics, Cedars-Sinai Spine Center, Los Angeles, CA, USA.
Sheila KahwatyDepartment of Orthopedics, Cedars-Sinai Spine Center, Los Angeles, CA, USA.
Neel AnandDepartment of Orthopedics, Cedars-Sinai Spine Center, Los Angeles, CA, USA.
Cedars-Sinai Medical Center · USBanner Health · USUniversity of California, San Francisco · USUPMC Central Pa · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo delineate whether use of a PTH analogue in the 1-year peri-operative period improves lumbar bone density.

methodsA prospectively collected data registry of 254 patients who underwent CMIS correction of ASD (Cobb angle > 20 or SVA > 50 mm or (PI-LL) > 10) from Jan 2011 to Jan 2020 was analysed. Patients who were placed on PTH analogues for one year in conjunction with surgery were included in the study. Ultimately, 41 patients who had pre- and two-year post-operative CT scans for review were included in this study. Hounsfield units were measured off of the L1-L3 levels for all patients before and after surgery on pre-op and post-op CT scans.

resultThe mean age of patients in this study was 70 (52-84, SD 7). Mean follow-up was 66 (24-132, SD 33) months. Twenty-three patients met criteria for severe deformity (Cobb angle > 50 degrees or SVA > 95 mm or PI/LL mismatch > 20 or PT > 30). Based off 2-year post-op CT scan, there were significant improvements in L1 Hounsfield units when comparing pre-op values (96; SD 55) to post-op values (185 SD 102); p. < 0.05. There was no screw loosening or screw pull out. There were 2 patients with PJF (4.8%). Both these patients had not completed their PTH treatment: one only took PTH for 3 months (PJF at 2-year post-op) and the other one took it only for 1 month (PJF at 1-year post-op). No increase in bone density was noted (based off of Hounsfield units) in five patients (12%) despite completion of their PTH therapy. Only one patient experienced nausea from PTH therapy. There were no other PTH related adverse events.

conclusionThe incidence of PTH analogues failing to increase bone density in our series was low at 12%. This study shows that PTH analogues may be a powerful adjunct for increasing bone density and may help to mitigate the risk of mechanical complications in patients undergoing deformity correction with minimally invasive techniques. Future comparative studies are warranted to confirm these latter findings and to potentially protocolize the ideal peri-operative bone health optimization strategy.

Indexed as

LordosisSpinal FusionBone DensityHumansParathyroid HormoneRetrospective StudiesTreatment OutcomeParathyroid HormoneBone densityMinimally invasive surgeryParathyroid hormoneScoliosisSpinal deformity

Identifiers

PMID37553471
OpenAlexW4385650653

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.