3D Geplante Osteosynthesen Mit Patientenspezifischen Zielvorrichtungen

Balgrist University Hospital7 enrolled

Overview

Goal of this study is to evaluate the accuracy of 3D computer-planned fracture fixation with patient-specific instruments for clavicle, upper extremity, lower extremity and pelvis fractures compared with the standard procedure of fracture fixation.

The research hypothesis is: The medical product permits the fracture fixation of clavicle, upper extremity, lower extremity and pelvis fractures to be more accurate compared with standard procedures of fracture fixation. Accuracy is evaluated by calculating translation and rotation comparing the postoperative 3D model versus the preoperative 3D plan. Secondary outcome is an assessment of the surgical outcome using validated outcome instruments for each fractured body part like "Patient related wrist Evaluation" (PRWE) scores for distal radial fractures, as well as evaluation of range of motion.

Study Type

INTERVENTIONAL

Allocation

NON_RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Enrollment

Conditions

Fracture of Humerus Fracture of Ulna Radius Fracture of Clavicle

Interventions

fracture fixation with patient specific guidesDEVICE

Using the preoperative computed tomography scan, a 3D planning of the fracture Fixation is made and patient-specific guides for fracure fixation are produced using a 3D Printer. These Patient-specific guides are used for fracture fixation

standard procedure of fracture fixationDEVICE

the standard procedure of fracure fixation for each fracture localisation is used as a standard of reference

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

Inclusion Criteria: * fracture of clavicle, upper extremity, lower extremity or pelvis,tibia, fibula,Femur, with indication for fracture Fixation * clinical indication for a computed tomography of the fractured bone * \>18 years of Age * Patient is able to give informed consent Exclusion Criteria: * pregnancy or nursing women * non-compliance of the patient to follow the clinical study protocol, drug abuse or alcohol abuse * participation in a different clinical Trial within the last 30 days before inclusion or during the study * allergy to Polyamid PA 2200 * no available technique for fracture Fixation which could be performed, in case of applying the medical device is not possible. * Applying the medical device is not possible, because of technical or anatomical reasons. * other clinical significant accompanying symptoms (tumor, infection)

Outcomes

Primary Outcomes

3D difference between preoperative plan and surgery

For each surgery the discrepancy of the postoperative result compared to the preoperative planning is calculated by measuring all 6 degrees of freedom (3xrotation, 3xtranslation). The discrepancy between a simulated perfect postoperative result and the actual postoperative result is assessed in degree (rotation) and millimeters (translation). These measures are used to compare the outcome of the two different study Groups.

Time frame: 12 months

Secondary Outcomes

surgical outcome assesed by validated outcome instruments

The surgical outcome is assessed by using specific validated outcome instruments for each fracture localisation, for example PRWE-score for wrist fractures.

Time frame: 12 months

range of motion

range of Motion is postoperatively assessed and compared between interventional and control group

Time frame: 12 months

3D Geplante Osteosynthesen Mit Patientenspezifischen Zielvorrichtungen

Overview

Conditions

Interventions

Eligibility

Locations (2)

Outcomes

Primary Outcomes

Secondary Outcomes