PURPOSE: Acetabular component malalignment in total hip arthroplasty can lead to potential complications such as dislocation, component impingement and excessive wear. Computer-assisted orthopaedic surgery systems generally use the anterior pelvic plane (APP). Our aim was to investigate the reliability of anatomical landmarks accessible during surgery and to define new potential planes of reference. METHODS: Three types of palpations were performed: virtual, on dry bones and on two cadaveric specimens. Four landmarks were selected, the reproducibility of their positioning ranging from 0.9 to 2.3 mm. We then defined five planes and tested them during palpations on two cadaveric specimens. RESULTS: Two planes produced a mean orientation error of 5.0° [standard deviation (SD 3.3°)] and 5.6° (SD 2.7°). CONCLUSIONS: Even if further studies are needed to test the reliability of such planes on a larger scale in vivo during surgery, these results demonstrated the feasibility of defining a new plane of reference as an alternative to the APP.
PURPOSE:Acetabular component malalignment in total hip arthroplasty can lead to potential complications such as dislocation, component impingement and excessive wear. Computer-assisted orthopaedic surgery systems generally use the anterior pelvic plane (APP). Our aim was to investigate the reliability of anatomical landmarks accessible during surgery and to define new potential planes of reference. METHODS: Three types of palpations were performed: virtual, on dry bones and on two cadaveric specimens. Four landmarks were selected, the reproducibility of their positioning ranging from 0.9 to 2.3 mm. We then defined five planes and tested them during palpations on two cadaveric specimens. RESULTS: Two planes produced a mean orientation error of 5.0° [standard deviation (SD 3.3°)] and 5.6° (SD 2.7°). CONCLUSIONS: Even if further studies are needed to test the reliability of such planes on a larger scale in vivo during surgery, these results demonstrated the feasibility of defining a new plane of reference as an alternative to the APP.
Authors: Rolf G A Haaker; Kai Tiedjen; Andreas Ottersbach; Frank Rubenthaler; Marthin Stockheim; James B Stiehl Journal: J Arthroplasty Date: 2007-02 Impact factor: 4.757
Authors: Nicholas G Sotereanos; Mark C Miller; Brett Smith; Robert Hube; Jeffrey J Sewecke; David Wohlrab Journal: J Arthroplasty Date: 2006-07-17 Impact factor: 4.757
Authors: William L Walter; Gary C O'toole; William K Walter; Andrew Ellis; Bernard A Zicat Journal: J Arthroplasty Date: 2007-03-28 Impact factor: 4.757
Authors: G Saxler; A Marx; D Vandevelde; U Langlotz; M Tannast; M Wiese; U Michaelis; G Kemper; P A Grützner; R Steffen; M von Knoch; T Holland-Letz; K Bernsmann Journal: Int Orthop Date: 2004-05-15 Impact factor: 3.075
Authors: Marek Jóźwiak; Michał Rychlik; Bartosz Musielak; Brian Po-Jung Chen; Maciej Idzior; Andrzej Grzegorzewski Journal: BMC Musculoskelet Disord Date: 2015-02-25 Impact factor: 2.362