Measurement of Patients' Perceptions on Limb Length Discrepancy Compared with Weight-bearing Orthoroentgenography in Total Hip Arthroplasty

• Register: TCTR
• Last refreshed on: 29 April 2024
• Main ID: TCTR20170419001
• Date of registration: 19/04/2017
• Prospective Registration: No
• Primary sponsor: Khon Kaen Hospital
• Public title: Measurement of Patients' Perceptions on Limb Length Discrepancy Compared with Weight-bearing Orthoroentgenography in Total Hip Arthroplasty
• Scientific title: Measurement of Patient’s Perceptions on Limb Length Discrepancy Compared with Weight-bearing Orthoroentgenography in Total Hip Arthroplasty
• Date of first enrolment: 12/04/2017
• Target sample size: 68
• Recruitment status: Enrolling by invitation
• URL: https://www.thaiclinicaltrials.org/show/TCTR20170419001
• Study type: Interventional
• Study design: Non-randomized
• Phase: Phase 4

Countries of recruitment

Thailand

Contacts

• Name: Kriangsak Piyakunmala
• Affiliation: Khon Kaen Hospital

• Name: Kriangsak Piyakunmala
• Affiliation: Khon Kaen Hospital

Key inclusion & exclusion criteria

Inclusion criteria: patients are older than 18 years and did not had previous lower limb fracture or deformity.
Exclusion criteria: patients are pregnant, unable to stand, impaired perception or neurological deficit.

Age minimum: 18 Years
Age maximum: 100 Years
Gender: Both

Health Condition(s) or Problem(s) studied

Patients’ perceptions are difficult to predict. Some patients have the perceptions of LLD that are not correlate with radiographic measurement.
limb length discrepancy,
total hip arthroplasty,
patient’s perception,
orthoroentgenography,
pelvic radiography

limb length discrepancy,
total hip arthroplasty,
patient’s perception,
orthoroentgenography,
pelvic radiography

Intervention(s)

measurement of patient’s perception (block test),weight-bearing orthoroentgenography

Active Comparator Device,Active Comparator Device

Patient’s perception was assessed with block test technique. Each 1 millimeter-thickness block was placed under the shorter limb until the patient perceived that both limbs were equal. The total thickness of block in millimeters was interpreted as patient’s perception in LLD. ,The weight-bearing orthoroentgenography was displayed as digital image by the picture archiving and communication system (PACS). In order to obtain a full-length standing radiograph of the lower extremities. The distance between the center of femoral head and the center of tibial plafond was measured. The difference between these measurement of each sides, i.e., limb length discrepancy, was interpreted in millimeters. Positive value meant that the observed limb was longer than the contralateral limb, whereas a negative value meant the opposite.

Primary Outcome(s)

length difference at time of measurement with both methods patient’s perception and weight-bearing orthoroentgenography

Secondary Outcome(s)

length diffence at time of measurement with both methods patient’s perception and pelvic radiography measurement

Secondary ID(s)

KE60034

Source(s) of Monetary Support

Khon Kaen Hospital

Ethics review

Status: Submitted, approved
Approval date:
Contact:

[e-mail]

The Khon Kaen Hospital Institute Review Board in Human Research

043-336789 Ext. 1226

[e-mail]

Results

• Date Completed: 18/07/2017