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Computer assisted orthopaedic surgical system for insertion of distal locking screws in intra‐medullary nails: a valid and reliable navigation system
Author(s) -
Malek S,
Phillips R,
Mohsen A,
Viant W,
Bielby M,
Sherman K
Publication year - 2005
Publication title -
the international journal of medical robotics and computer assisted surgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.556
H-Index - 53
eISSN - 1478-596X
pISSN - 1478-5951
DOI - 10.1002/rcs.54
Subject(s) - medullary cavity , orthopedic surgery , fluoroscopy , medicine , computer assisted surgery , orthodontics , process (computing) , insert (composites) , intramedullary rod , nail (fastener) , computer science , surgery , anatomy , materials science , operating system , metallurgy , composite material
The insertion of distal locking screws is a difficult task in intra‐medullary (IM) nailing operations of long bones and contributes a significant proportion to the overall operating time. The current technique to insert these screws uses numerous fluoroscopic images and depends on the skills and expertise of the surgeon. The Computer Assisted Orthopaedic Surgical System (CAOSS) was developed to assist orthopaedic surgeons in these operations. The laboratory based test results for insertion of distal locking screws in IM nailing procedures are presented and discussed in terms of accuracy and as part of the validation process to introduce new CAOS procedures into clinical use. This study shows that CAOSS in IM nailing is robust and reliable. Positional accuracy was shown to be within 0.3 mm and angular accuracy within 0.2° with femoral IM nail. CAOSS was also shown to be very reliable and accurate at different angles of distal screws in fluoroscopic image space. Copyright © 2005 John Wiley & Sons, Ltd.