Trial · NCT03770338
Preoperative Teriparatide Use on Insertional Torque of Pedicle Screws for Lumbar Fusion Surgery
NCT03770338, Not applicable, Active not recruiting, The University of Hong Kong
3 sourcestrials-2026-11-12-0.5.0
Cite this record
ConductScience Library. Preoperative Teriparatide Use on Insertional Torque of Pedicle Screws for Lumbar Fusion Surgery. Trials, record NCT03770338. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03770338
On this page
Trial
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
- Title
- Preoperative Teriparatide Use on Insertional Torque of Pedicle Screws for Lumbar Fusion Surgery
- NCT number
- NCT03770338
- Status
- Active not recruiting
- Phases
- Not applicable
- Enrollment
- 192 participants, estimated
- Lead sponsor
- The University of Hong Kong
- Conditions
- Osteoporosis, Fusion of Spine, Lumbar Region
- Interventions
- Teriparatide
- First posted
- 2018-12-10
- Last updated
- 2026-05-14
Source ClinicalTrials.gov
Registered outcomes12
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | Insertional torque Intraoperative insertional torque measurement | Intraoperative | Measurement of the insertional torque of pedicle screws |
| Secondary | Bone Mineral Density (BMD) | Preoperative, Immediate postop and 6 month postop dual energy x-ray absorptiometry (DEXA) scan | Assessment of BMD before and after treatment |
| Secondary | Complication rate | Baseline, immediate postop, postop 6 weeks, postop 3 months, postop 6 months, postop 12 months, postop 24 months | screw loosening, fracture, non-union |
| Secondary | Fusion rate | At 6 months CT | Fusion rate assessment |
| Secondary | EQ-5D-5L | Baseline, immediate, postop 6 weeks, postop 3 months, postop 6 months, postop 12 months, postop 24 months | Utility score |
| Secondary | Oswestry Disability Index (ODI) | Baseline, immediate postop, postop 6 weeks, postop 3 months, postop 6 months, postop 12 months, postop 24 months | Assessment of disability |
| Secondary | Short form 36-item questionnaire (SF-36) | Baseline, immediate postop, postop 6 weeks, postop 3 months, postop 6 months, postop 12 months, postop 24 months | General quality of life score |
| Secondary | Numeric Rating Scale (NRS) | Baseline, immediate postop, postop 6 weeks, postop 3 months, postop 6 months, postop 12 months, postop 24 months | This is a self-perceived severity of back pain. The scores range from minimum 0 (no pain) to maximum 10 (most painful) in a scale of severity. Hence, a higher value represents worse outcome. There are two subquestions: 1) What the patient indicates as the most severe pain in the past 24 hours of answering the questionnaire; 2) The patient indicates the score of the usual pain status in the past 24 hours. 0 represents no pain, 1-3 represents mild pain (nagging, annoying, interfering little with ADLs), 4-6 represents moderate pain (interferes significantly with ADLs), and 7-10 represents severe pain (disabling; unable to perform ADLs). |
| Secondary | Osteoporosis Assessment Questionnaire-Physical Function (OPAQ-PF) | Baseline, immediate postop, postop 6 weeks, postop 3 months, postop 6 months, postop 12 months, postop 24 months | This is a general osteoporosis score with 15 questions split into three categories (mobility, balance and transfer). A Likert scale of 6 answers are possible for each question from "no difficulties" to "unable to perform" in a scale of severity. A total score can be tabulated from adding all domain scores. Higher values indicate better outcome. A 0-100 scale provides a total score, where 0 indicates the worst health status and 100 no difficulties. |
| Secondary | Ambulatory status assessment (ASA) | Baseline, immediate postop, postop 6 weeks, postop 3 months, postop 6 months, postop 12 months, postop 24 months | Functional assessment |
1 to 10 of 12Source ClinicalTrials.gov
See all 12 registered outcomesOutcomes0
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
None in this release.
Results by group0
Each measurement the trial posted, group by group, in the words and numbers it posted.
None in this release.
Participant flow0
How many started, completed or left each group, period by period.
None in this release.
Adverse events0
Each adverse event the trial posted, group by group: the participants affected out of those at risk.
None in this release.
Adverse event totals0
The totals the trial posted for each group.
None in this release.
Papers0
The papers the trial lists on ClinicalTrials.gov.
None in this release.
Grants0
The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.
None in this release.
Trial comparisons0
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
None in this release.
Tests0
The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.
None in this release.
Data dates
The day each source was copied for this release.
Sources 3
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
- NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
- NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
For software
Read this trial from software.
The record and each of its lists are JSON, twenty rows a page. No key.
GET https://conductscience.org/api/trials/v1/NCT03770338
GET https://conductscience.org/api/trials/v1/NCT03770338/registered