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Accuracy Evaluation of Shoulder Replacement Surgery

This study is currently recruiting participants. (see Contacts and Locations)
Verified June 2016 by Balgrist University Hospital
Information provided by (Responsible Party):
Lazaros Vlachopoulos, MD, Balgrist University Hospital Identifier:
First received: January 30, 2014
Last updated: June 30, 2016
Last verified: June 2016
The purpose of this study is to evaluate the accuracy of shoulder replacement surgery in realization a computer assisted 3D planning compared to conventional 2D planning.

Condition Intervention
Osteoarthritis of the Shoulder
Complexe Proximal Humeral Fractures
Procedure: Shoulder replacement surgery

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Accuracy Evaluation of Shoulder Replacement Surgery With Computer-assisted 3D Planning

Further study details as provided by Balgrist University Hospital:

Primary Outcome Measures:
  • Quantitative analysis of the discrepancy (difference of translation in mm and rotation in degrees) in the realized position of the components compared to the preoperative planning [ Time Frame: 6 weeks ]
    The deviation of the realized position of the artificial joint components will be quantified by overlay of the preoperative planning and a 3D model of the postoperative position of the shoulder replacement acquired from CT scans.

Secondary Outcome Measures:
  • Clinical outcome [ Time Frame: 1 year ]
    Assessment of the clinical outcome

  • Subjective shoulder value [ Time Frame: 1 year ]
  • Constant score [ Time Frame: 1 year ]

Estimated Enrollment: 80
Study Start Date: March 2014
Estimated Study Completion Date: December 2018
Estimated Primary Completion Date: December 2017 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Computer-assisted 3D planning
Realization of the shoulder replacement according to the computer-assisted 3D preoperative plan
Procedure: Shoulder replacement surgery
Active Comparator: Conventional 2D planning
Realization of the shoulder replacement according to the 2D preoperative plan
Procedure: Shoulder replacement surgery


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • osteoarthritis or complexe proximal humeral fracture and indication for shoulder arthroplasty
  • patients > 18years

Exclusion Criteria:

  • contraindication for computertomography
  • pregnancy
  • previous fracture or shoulder replacement of the contralateral side in case of a complexe proximal humeral fracture
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT02052206

Contact: Lazaros Vlachopoulos, MD 0041 44 386 5747

University Hospital Balgrist Recruiting
Zurich, Switzerland
Principal Investigator: Christian Gerber, Prof.         
Principal Investigator: Dominik Meyer, Prof.         
Principal Investigator: Lazaros Vlachopoulos, MD         
Sponsors and Collaborators
Balgrist University Hospital
Study Chair: Lazaros Vlachopoulos, MD Balgrist University Hospital
  More Information

Responsible Party: Lazaros Vlachopoulos, MD, MD, Balgrist University Hospital Identifier: NCT02052206     History of Changes
Other Study ID Numbers: BalgristUH_CARD_03
Study First Received: January 30, 2014
Last Updated: June 30, 2016

Keywords provided by Balgrist University Hospital:
complexe proximal humeral fracture
shoulder replacement

Additional relevant MeSH terms:
Humeral Fractures
Shoulder Fractures
Joint Diseases
Musculoskeletal Diseases
Rheumatic Diseases
Arm Injuries
Wounds and Injuries
Fractures, Bone processed this record on April 21, 2017