Comparing Weight Bearing After Intramedullary Fixation Devices for the Proximal Femur Fracture

NCT ID: NCT01509859

Last Updated: 2012-01-13

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE4

Total Enrollment

100 participants

Study Classification

INTERVENTIONAL

Study Start Date

2011-12-31

Study Completion Date

2012-09-30

Brief Summary

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The purpose of the study is to Compare the stability of the fracture and pain after surgery by measuring the stride length and weight bearing on the operated leg. This study will compare these parameters between two different proximal femur nails used for fixing hip fractures.

Detailed Description

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Fractures of the proximal femur and hip are relatively common injuries in adults.

According to the Evans and the AO Classification systems, the fracture can be described as stable after reduction or not according to the direction of the fracture lines and the comminution of the medial cortex or the lateral wall of the proximal femur.

Biomechanically, nails allow for stable anatomical fixation of more comminuted fractures without shortening the abductor moment arm or changing the proximal femoral anatomy. These devices provide fracture stability by virtue of allowing the lateral aspect of the head and neck to come to rest against the nail in the medullary canal.

For fractures with comminuted medial cortex or involvement of the lateral cortex (AO 2.2 - AO 3.3) it is advisable to fixate with a more stable fixation device such as intramedullary proximal femur nail Several intramedullary devices are currently in use for the treatment of the intertrochanteric fractures. In our institution, for the unstable fracture we use either one of the intramedullary devices manufactured by Synthes (Proximal femoral nail - anti-rotation = PFNA) or by Smith\&Nephew (Trochanteric Antegrade Nail = InterTan).

Each of these nails allow compression over the Nail\\Blade with the intramedullary stability.

There are 3 main complications in the treatment of intramedullary devices : (1) varus collapse of the head/neck, (2) uncontrolled shortening of the neck, and (3)femoral shaft fractures at the tip of the nail The InterTan, unlike other devices, allows for immediate intraoperative compression of the principal fracture fragments through linear compression combined with rotational stability secondary to its unique geometry and mechanism of action.

The mechanical stability of the fracture after the fixation is reflected by the weight bearing the patient can hold . In order to find weather there is a mechanical difference between the two devices we would like to perform a test measuring the weight bearing after fixation of intertrochanteric fractures comparing the pain and impression of mechanical stability in the two devices.

The method to test the amount of weight bearing would be using the "SmartStep gait system" TM (Andante Medical Devices Ltd), an innovative biofeedback and monitoring system that records and analyzes key gait parameters and provides instantaneous and accurate audio and visual feedback.

Conditions

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Closed Comminuted Oblique Intertrochanteric Fracture of Neck of Right Femur Closed Comminuted Oblique Intertrochanteric Fracture of Neck of Left Femur

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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PFNA

these patients will be treated with "synthes" PFNA" device

Group Type ACTIVE_COMPARATOR

PFNA proximal femur nail device (Synthes)

Intervention Type DEVICE

synthes "PFNA" proximal femur nail device

INTERTAN

these patients will be treated with Smith\&Nephew "INTERTAN" device

Group Type ACTIVE_COMPARATOR

INTERTAN proximal femur nail device (Smith&Nephew)

Intervention Type DEVICE

Smith\&Nephew "INTERTAN" proximal femur nail device

Interventions

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PFNA proximal femur nail device (Synthes)

synthes "PFNA" proximal femur nail device

Intervention Type DEVICE

INTERTAN proximal femur nail device (Smith&Nephew)

Smith\&Nephew "INTERTAN" proximal femur nail device

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* pertrochanteric fracture ao 2.2 and above
* ambulatory patient, without support prior to the fall
* minor trauma mechanism
* without other injuries
* operated 3 days from the injury

Exclusion Criteria

* dementia
* s/p hip or knee arthroplasty
* known osteoarthritis
Minimum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Rabin Medical Center

OTHER

Sponsor Role lead

Responsible Party

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yona kosashvili

senior surgeon, joint arthroplasty unit, orthopedic department

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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yona kosashvili, MD

Role: PRINCIPAL_INVESTIGATOR

Rabin Medical Center

eliezer sidon, MD

Role: STUDY_DIRECTOR

Rabin Medical Center

Locations

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Rabin Medical Center

Petah Tikva, , Israel

Site Status RECRUITING

Countries

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Israel

Central Contacts

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eliezer sidon, MD

Role: CONTACT

972-523-896169

yona kosashvili, MD

Role: CONTACT

972-3-9376156

Facility Contacts

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eliezer sidon, MD

Role: primary

972-3523-896169

References

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Zlowodzki M, Zelle BA, Cole PA, Jeray K, McKee MD; Evidence-Based Orthopaedic Trauma Working Group. Treatment of acute midshaft clavicle fractures: systematic review of 2144 fractures: on behalf of the Evidence-Based Orthopaedic Trauma Working Group. J Orthop Trauma. 2005 Aug;19(7):504-7. doi: 10.1097/01.bot.0000172287.44278.ef.

Reference Type BACKGROUND
PMID: 16056089 (View on PubMed)

Sadowski C, Lubbeke A, Saudan M, Riand N, Stern R, Hoffmeyer P. Treatment of reverse oblique and transverse intertrochanteric fractures with use of an intramedullary nail or a 95 degrees screw-plate: a prospective, randomized study. J Bone Joint Surg Am. 2002 Mar;84(3):372-81.

Reference Type BACKGROUND
PMID: 11886906 (View on PubMed)

Cummings SR, Rubin SM, Black D. The future of hip fractures in the United States. Numbers, costs, and potential effects of postmenopausal estrogen. Clin Orthop Relat Res. 1990 Mar;(252):163-6.

Reference Type BACKGROUND
PMID: 2302881 (View on PubMed)

Gullberg B, Duppe H, Nilsson B, Redlund-Johnell I, Sernbo I, Obrant K, Johnell O. Incidence of hip fractures in Malmo, Sweden (1950-1991). Bone. 1993;14 Suppl 1:S23-9. doi: 10.1016/8756-3282(93)90345-b.

Reference Type BACKGROUND
PMID: 8110516 (View on PubMed)

Williams WW, Parker BC. Complications associated with the use of the gamma nail. Injury. 1992;23(5):291-2. doi: 10.1016/0020-1383(92)90169-s.

Reference Type BACKGROUND
PMID: 1644453 (View on PubMed)

Koval KJ, Sala DA, Kummer FJ, Zuckerman JD. Postoperative weight-bearing after a fracture of the femoral neck or an intertrochanteric fracture. J Bone Joint Surg Am. 1998 Mar;80(3):352-6. doi: 10.2106/00004623-199803000-00007.

Reference Type BACKGROUND
PMID: 9531202 (View on PubMed)

Other Identifiers

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0333-11-RMC

Identifier Type: -

Identifier Source: org_study_id

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