Three-dimensional imaging and templating improve glenoid implant positioning

Joseph P. Iannotti, Scott Weiner, Eric Rodriguez, Naveen Subhas, Thomas E. Patterson, Bong Jae Jun, Eric T. Ricchetti

Research output: Contribution to journalArticlepeer-review

84 Scopus citations


Background: Preoperative quantitative assessment of glenoid bone loss, selection of the glenoid component, and definition of its desired location can be challenging. Placement of the glenoid component in the desired location at the time of surgery is difficult, especially with severe glenoid pathological conditions. Methods: Forty-six patients were randomly assigned to three-dimensional computed tomographic preoperative templating with either standard instrumentation or with patient-specific instrumentation and were compared with a nonrandomized group of seventeen patients with two-dimensional imaging and standard instrumentation used as historical controls. All patients had postoperative three-dimensional computed tomographic metal artifact reduction imaging to measure and to compare implant position with the preoperative plan. Results: Using three-dimensional imaging and templating with or without patient-specific instrumentation, there was a significant improvement achieving the desired implant position within 5° of inclination or 10° of version when compared with two-dimensional imaging and standard instrumentation. Conclusion: Three-dimensional assessment of glenoid anatomy and implant templating and the use of these images at the time of surgery improve the surgeon's ability to place the glenoid implant in the desired location. Level of Evidence: Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.

Original languageEnglish (US)
Pages (from-to)651-658
Number of pages8
JournalJournal of Bone and Joint Surgery - American Volume
Issue number8
StatePublished - Apr 15 2015
Externally publishedYes

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine


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