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THP Hip Fracture Plating System Study

Intracapsular and Intertrochanteric Fracture Fixation With the THP Hip Fracture Plating System

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03870477
Acronym
THP
Enrollment
1
Registered
2019-03-12
Start date
2019-01-16
Completion date
2021-03-10
Last updated
2022-05-12

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

Conditions

Femur Fracture, Femur Fracture Intertrochanteric, Garden Grade III Subcapital Fracture of Femoral Neck, Garden Grade II Subcapital Fracture of Femoral Neck, Garden Grade I Subcapital Fracture of Femoral Neck, Garden Grade IV Subcapital Fracture of Femoral Neck

Keywords

Cannulated Screws, Lag Screws, Compression Screws, Telescoping Lag Screws, Cortical Screws, Hip Fracture Plate

Brief summary

The objective of this study is to systematically document the clinical outcomes of THP Hip Fracture Plating System when used to treat intracapsular and intertrochanteric fractures.

Detailed description

Primary Endpoint: • Revision rate due to device related complication(s) or non-union of the femur. Secondary Endpoints: • Radiographic and clinical fracture healing of the proximal femur using standard scoring methods.

Interventions

DEVICETHP Hip Fracture Plating System with telescoping lag screws

The fracture plates are contoured plates used in conjunction with telescoping lag screws that are 7.5mm in diameter with lengths ranging from 70mm to 130mm in 5mm increments.

Sponsors

Zimmer Biomet
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patient must be 18 years of age or older. * Patient must be eligible for an open reduction and internal fixation of the proximal femur. * Patient must have an intracapsular or intertrochanteric fracture. * Patient must have need for alignment, stabilization, and reduction of bone fractures. * Patient must have ability and willingness to follow postoperative care instructions until healing is complete. * Patient must be in good nutritional state. * Patient must be able and willing to sign the IRB/EC approved informed consent.

Exclusion criteria

* Patient is a prisoner. * Patient is a current alcohol or drug abuser. * Patient is known to be pregnant or breastfeeding. * Patient has a psychiatric illness or cognitive deficit that will not allow proper informed consent. * Infection. * Patient conditions including bloody supply limitations, obesity or insufficient quantity or quality of bone. * Patient with mental or neurologic conditions who are unwilling or incapable of following postoperative care instructions. * Patient has foreign body sensitivity. Where material sensitivity is suspected or unknown, testing is to be completed prior to implantation of the device. * Patient is expected to be non-compliant with recommended post-operative weight-bearing instructions.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With a Revision6 weeksRevision rate due to device related complication(s) or non-union of the femur.

Secondary

MeasureTime frameDescription
Number of Participants With Radiographic Fracture Healing of the Femur (RUSH)6 weeksRadiographic fracture healing as seen on x-ray and defined using Radiographic Union Score for Hips (RUSH) scoring system. The RUSH quantifies four measures of healing: cortical bridging, cortical fracture disappearance, trabecular consolidation, and trabecular fracture disappearance. Cortical healing is assessed in four anatomic femoral neck regions (anterior, posterior, medial, lateral) and trabecular healing is measured with two assessments (fracture line disappearance and consolidation of matrix). Each of the 10 assessed dimensions of radiographic femoral neck healing are scored 1 to 3, leading to a minimum score of 10 (no signs of healing) and a maximum score of 30 (perfect healing).
Average FIX-IT Score (Clinical Fracture Healing of the Femur)6 weeksThe Function IndeX for Trauma (FIX-IT) score is an assessment tool for patients with lower extremity fractures, incorporating pain and the ability to weight-bear. The score utilizes two questions to assess the ability to bear weight and two questions to assess pain at the fracture site. The maximum subtotal for each set of questions is 6 points, yielding a maximum overall score of 12 points and a minimum score (lowest weight bearing and highest pain) of 0 points.
Average EQ-5D-5L Score (Clinical Fracture Healing of the Femur)6 weeksThe EuroQol five dimensions questionnaire (EQ-5D-5L) is a five dimensional self-assessment that is comprised of mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. These five dimensions can be used to index a subject's health utility on a scale of 0 to 1, where 0 is death and 1 is perfect health. The scoring rule for EQ-5D permits scores less than 0, implying that some health states may be worse than death. The Health Status is scored on a VAS scale of 0 to 100, where 100 ('the best imaginable health state' or 'the best health state you can imagine') to 0 ('the worst imaginable health state' or 'the worst health you can imagine').
Average VAS Pain Score6 weeksVAS pain scale is a unidimensional measure of pain intensity. The pain VAS is a continuous scale comprised of a horizontal (HVAS) line, 10 centimeters (100 mm) in length. For pain intensity, the scale is most commonly anchored by no pain (score of 0) and pain as bad as it could be or worst imaginable pain (score of 100 \[100-mm scale\])

Countries

United States

Participant flow

Participants by arm

ArmCount
THP Hip Fracture Plating System
THP Hip Fracture Plating System in Intracapsular and Intertrochanteric Femur Fractures THP Hip Fracture Plating System with telescoping lag screws: The fracture plates are contoured plates used in conjunction with telescoping lag screws that are 7.5mm in diameter with lengths ranging from 70mm to 130mm in 5mm increments.
1
Total1

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyEarly Study Termination1

Baseline characteristics

CharacteristicTHP Hip Fracture Plating System
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
1 Participants
Age, Categorical
Between 18 and 65 years
0 Participants
Age, Continuous83 years
STANDARD_DEVIATION 0
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
1 Participants
Region of Enrollment
United States
1 participants
Sex: Female, Male
Female
1 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 1
other
Total, other adverse events
0 / 1
serious
Total, serious adverse events
1 / 1

Outcome results

Primary

Number of Participants With a Revision

Revision rate due to device related complication(s) or non-union of the femur.

Time frame: 6 weeks

Population: At the time of early study termination, 1 subject enrolled into the study; however, the only study completed follow-up visit was the 1-6 week visit.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
THP Hip Fracture Plating SystemNumber of Participants With a Revision0 Participants
Secondary

Average EQ-5D-5L Score (Clinical Fracture Healing of the Femur)

The EuroQol five dimensions questionnaire (EQ-5D-5L) is a five dimensional self-assessment that is comprised of mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. These five dimensions can be used to index a subject's health utility on a scale of 0 to 1, where 0 is death and 1 is perfect health. The scoring rule for EQ-5D permits scores less than 0, implying that some health states may be worse than death. The Health Status is scored on a VAS scale of 0 to 100, where 100 ('the best imaginable health state' or 'the best health state you can imagine') to 0 ('the worst imaginable health state' or 'the worst health you can imagine').

Time frame: 6 weeks

Population: At the time of early study termination, 1 subject enrolled into the study; however, the only study completed follow-up visit was the 1-6 week visit.

ArmMeasureGroupValue (MEAN)Dispersion
THP Hip Fracture Plating SystemAverage EQ-5D-5L Score (Clinical Fracture Healing of the Femur)6 weeks - Health Status75 score on a scaleStandard Deviation 0
THP Hip Fracture Plating SystemAverage EQ-5D-5L Score (Clinical Fracture Healing of the Femur)6 weeks - EQ-5D Score.456 score on a scaleStandard Deviation 0
Secondary

Average FIX-IT Score (Clinical Fracture Healing of the Femur)

The Function IndeX for Trauma (FIX-IT) score is an assessment tool for patients with lower extremity fractures, incorporating pain and the ability to weight-bear. The score utilizes two questions to assess the ability to bear weight and two questions to assess pain at the fracture site. The maximum subtotal for each set of questions is 6 points, yielding a maximum overall score of 12 points and a minimum score (lowest weight bearing and highest pain) of 0 points.

Time frame: 6 weeks

Population: At the time of early study termination, 1 subject enrolled into the study; however, the only study completed follow-up visit was the 1-6 week visit.

ArmMeasureValue (MEAN)Dispersion
THP Hip Fracture Plating SystemAverage FIX-IT Score (Clinical Fracture Healing of the Femur)3 score on a scaleStandard Deviation 0
Secondary

Average VAS Pain Score

VAS pain scale is a unidimensional measure of pain intensity. The pain VAS is a continuous scale comprised of a horizontal (HVAS) line, 10 centimeters (100 mm) in length. For pain intensity, the scale is most commonly anchored by no pain (score of 0) and pain as bad as it could be or worst imaginable pain (score of 100 \[100-mm scale\])

Time frame: 6 weeks

Population: At the time of early study termination, 1 subject enrolled into the study; however, the only study completed follow-up visit was the 1-6 week visit.

ArmMeasureValue (MEAN)Dispersion
THP Hip Fracture Plating SystemAverage VAS Pain Score16 score on a scaleStandard Deviation 0
Secondary

Number of Participants With Radiographic Fracture Healing of the Femur (RUSH)

Radiographic fracture healing as seen on x-ray and defined using Radiographic Union Score for Hips (RUSH) scoring system. The RUSH quantifies four measures of healing: cortical bridging, cortical fracture disappearance, trabecular consolidation, and trabecular fracture disappearance. Cortical healing is assessed in four anatomic femoral neck regions (anterior, posterior, medial, lateral) and trabecular healing is measured with two assessments (fracture line disappearance and consolidation of matrix). Each of the 10 assessed dimensions of radiographic femoral neck healing are scored 1 to 3, leading to a minimum score of 10 (no signs of healing) and a maximum score of 30 (perfect healing).

Time frame: 6 weeks

Population: At the time of early study termination, 1 subject enrolled into the study; however, the only study completed follow-up visit was the 1-6 week visit.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
THP Hip Fracture Plating SystemNumber of Participants With Radiographic Fracture Healing of the Femur (RUSH)1 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026