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CompletedNCT06173557THRUpdated Dec 15, 2023

Intraoperative Measurement Technique

An observational study in Total Hip and Limb Length Discrepancy, sponsored by Ziv Medical Center. Completed. Per ClinicalTrials.gov, last updated 2023-12-15.

Sponsored by Ziv Medical Center · Observational

Study type
Observational
Model
Case-only
Time perspective
Other
Enrollment
50
Sex
All
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Study summary

This retrospective cohort study included 50 consecutive patients who underwent THR. All surgeries were performed by the same orthopedic surgeon, using posterior approach. In all patients, the same technique of intraoperative measurement of the femoral offset and limb length was used, entailed calculation of the distances between reference points on the ischium, greater trochanter, and the screwdriver. Measurements were collected from radiographic imaging data and surgical reports.

Read the detailed description

Introduction: Restoration of limb length equality and femoral offset is critical for the success of THR. The purpose of this study was to investigate the efficacy of a novel intraoperative measurement technique in minimizing errors in leg length and offset in total hip replacement (THR).

Methods: This retrospective cohort study included 50 consecutive patients who underwent THR. All surgeries were performed by the same orthopedic surgeon, using posterior approach. In all patients, the same technique of intraoperative measurement of the femoral offset and limb length was used, entailed calculation of the distances between reference points on the ischium, greater trochanter, and the screwdriver. Measurements were collected from radiographic imaging data and surgical reports.

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Conditions studied

  • Total Hip
  • Limb Length Discrepancy

Keywords

  • total hip replacement
  • limb length discrepancy
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In context

Lead sponsor

Ziv Medical Center is the lead sponsor of 2 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

50 consecutive patients who were admitted to the orthopedic department for elective THR

Inclusion criteria

* patients that underwent THR due to primary osteoarthritis of the hip joint.

Exclusion criteria

Exclusion Criteria:

  • Patients who underwent THR for any other reasons
  • patients that underwent revision surgery
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Study design

Observational model
Case-only
Time perspective
Other
Enrollment
50 participants (actual)
Target follow-up
2 Years
Patient registry
Yes

Interventions

  • Procedureentailed calculation of the distances between reference points on the ischium, greater trochanter, and the screwdriver. Measurements were collected from radiographic i

    technique of intraoperative measurement of the femoral offset and limb length was used, entailed calculation of the distances between reference points on the ischium, greater trochanter, and the screwdriver. Measurements were collected from radiographic imaging data and surgical reports

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What researchers measure

Primary outcomes

  1. outcome

    calculation of the distances between reference points on the ischium, greater trochanter, and the screwdriver

    Time frame: 1 year

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Study locations

No study locations are listed for this record.

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References and documents

Individual participant data

Plan to share: No — no sharing

No publications or documents are linked to this record.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 15, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06173557
Lead sponsor
Ziv Medical Center
Responsible party
David Rothem (Head of orthopedic department, Ziv Medical Center) — Principal investigator
First posted
Dec 15, 2023
Start date
Mar 23, 2015
Primary completion
Mar 20, 2017
Completion
Jun 20, 2017
Last update
Dec 15, 2023

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Dec 2023. You cannot join it, but the record below documents what was studied.

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