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

Measurement of Patient’s Perceptions on Limb Length Discrepancy Compared with Weight-bearing Orthoroentgenography in Total Hip Arthroplasty

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
TCTR
Registry ID
TCTR20170419001
Enrollment
68
Registered
2017-04-19
Start date
2017-04-12
Completion date
Unknown
Last updated
2026-03-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Patients’ perceptions are difficult to predict. Some patients have the perceptions of LLD that are not correlate with radiographic measurement. limb length discrepancy&#44

Interventions

Patient’s perception was assessed with block test technique. Each 1 millimeter&#45
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.
bearing orthoroentgenography was displayed as digital image by the picture archiving and communication system (PACS). In order to obtain a full&#45
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 sid
limb length discrepancy&#44
was interpreted in millimeters. Positive value meant that the observed limb was longer than the contralateral limb&#44
whereas a negative value meant the opposite.
Active Comparator Device,Active Comparator Device
measurement of patient’s perception (block test),weight&#45
bearing orthoroentgenography

Sponsors

Khon Kaen Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 100 Years

Inclusion criteria

Inclusion criteria: patients are older than 18 years and did not had previous lower limb fracture or deformity.

Exclusion criteria

Exclusion criteria: patients are pregnant, unable to stand, impaired perception or neurological deficit.

Design outcomes

Primary

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

Secondary

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

Countries

Thailand

Contacts

Public ContactKriangsak Piyakunmala

Khon Kaen Hospital

piyakunmala@yahoo.com+66 43-336789

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Apr 4, 2026