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Anser Clavicle Pin for Surgical Management of Midshaft Clavicle Fractures

The Anser Clavicle Pin for Surgical Management of Midshaft Clavicle Fractures; A U.S. Prospective Case Series

Status
Withdrawn
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05454306
Enrollment
0
Registered
2022-07-12
Start date
2028-01-09
Completion date
2030-01-09
Last updated
2026-03-18

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

Conditions

Clavicle Fracture

Keywords

Clavicle fracture, Clavicle pin

Brief summary

The goals of this multi-site study are to evaluate the union rate, patient satisfaction, and functional results of the Section 510(K) approved Anser Clavicle Pin in a prospective 50 patient clinical trial in a U.S. population.

Interventions

DEVICEAnser Clavicle Pin

The Anser Clavicle Pin is an intramedullary device that has been studied in 20 patients in an EU-based prospective case series.28 A 100% union rate was found. The Constant-Murley score at 1-year was 96.7 (SD 5). The Disabilities of Arm, Shoulder and Hand score was 5.1 (SD 10). There were no infections, neuropathy of the supraclavicular nerve or hardware irritation requiring removal of hardware. Three device-related complications (15%) occurred including plastic deformation, protrusion and hardware failure. VAS satisfaction was 8.9 (SD 1) at the 1-year follow up.

Sponsors

University of Minnesota
Lead SponsorOTHER

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

* Displaced midshaft clavicle fracture Type 2B according to the Robinson Classification * Skeletally mature * Surgery performed within 4 weeks after trauma

Exclusion criteria

* Not fit for surgery by the anesthesiologist * Nonunion or previous malunion * Possible noncompliant patients (eg, alcohol and drug addiction, dementia) * Additional neurovascular injury * Pathologic fractures

Design outcomes

Primary

MeasureTime frameDescription
ASES Score- 2 week2 weeks post-operationAmerican Shoulder and Elbow Surgeons Score
ASES Score- 6 week6 weeks post-operationAmerican Shoulder and Elbow Surgeons Score
ASES Score- 3 month3 months post-operationAmerican Shoulder and Elbow Surgeons Score
ASES Score- 1 year1 year post-operationAmerican Shoulder and Elbow Surgeons Score
DASH Score- 2 week2 weeks post-operationDisabilities of Arm, Shoulder and Hand Score
DASH Score- 6 week6 weeks post-operationDisabilities of Arm, Shoulder and Hand Score
DASH Score- 3 month3 months post-operationDisabilities of Arm, Shoulder and Hand Score
DASH Score- 1 year1 year post-operationDisabilities of Arm, Shoulder and Hand Score
Radiographic union rate1 year post-operationRadiographic union is defined as a 2/3rd circumferential cortical bridging between medial and lateral fragments on both radiographs as determined by the treating surgeon and an independent radiologist
Clinical union rate1 year post-operationClinical union is defined as the absence of pain over the fracture site upon palpation.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORJonathan Braman, MD

University of Minnesota

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 19, 2026