The Use of Patient-Specific Instrumentation Improves the Accuracy of Acetabular Component Placement

Buller, Leonard T.; Smith, Travis A.; Bryan, Jason; Klika, Alison K.; Barsoum, Wael K.; Iannotti, Joseph P.

doi:10.1016/j.arth.2012.12.001

Cited by 30 publications

(18 citation statements)

References 30 publications

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“…In one study in which patient-specific instrumentation was used on a hemipelvis, the authors reported a mean difference of the COR in the AP plane of 1.9 mm (0.1 to 3.1), in the LM plane of 1.2 mm (0 to 4.3) and in the SI of 1.6 mm (0 to 3.9). 27 These results are similar to those in our study. However, ours was an in vivo study involving patients with large acetabular defects.…”

Section: Discussionsupporting

confidence: 92%

The accuracy of positioning of a custom-made implant within a large acetabular defect at revision arthroplasty of the hip

Baauw

et al. 2015

The Bone & Joint Journal

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We evaluated the accuracy with which a custom-made acetabular component could be positioned at revision arthroplasty of the hip in patients with a Paprosky type 3 acetabular defect. A total of 16 patients with a Paprosky type 3 defect underwent revision surgery using a custom-made trabecular titanium implant. There were four men and 12 women with a median age of 67 years (48 to 79). The planned inclination (INCL), anteversion (AV), rotation and centre of rotation (COR) of the implant were compared with the post-operative position using CT scans. A total of seven implants were malpositioned in one or more parameters: one with respect to INCL, three with respect to AV, four with respect to rotation and five with respect to the COR. To the best of our knowledge, this is the first study in which CT data acquired for the pre-operative planning of a custom-made revision acetabular implant have been compared with CT data on the post-operative position. The results are encouraging.

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Section: Discussionsupporting

confidence: 92%

The accuracy of positioning of a custom-made implant within a large acetabular defect at revision arthroplasty of the hip

Baauw

et al. 2015

The Bone & Joint Journal

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“…4 2652 Gebhart et al The American Journal of Sports Medicine limitation is our lack of femoral version data in our assessment of the adaptations of the hip joint in patients with decreased PI. As shown by Buller et al, 3 a correlation exists between multiple proximal femoral and acetabular angles in normal hip joints, and a complementary developmental relationship may occur between the femoral head and acetabulum. Relationships between PI and the femoral version may have added to our results.…”

Section: Discussionmentioning

confidence: 88%

Correlation of Pelvic Incidence With Cam and Pincer Lesions

et al. 2014

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“…In order to face this aberrant functional acetabular orientation and prevent those complications happening, it seems reasonable to first use a higher tolerance implant (larger diameter head, dual mobility) 25 and second, to determine a personalised cup orientation. 10 , 17 , 37 , 38 This relates to the concept of kinematically aligned total hip arthroplasty (KA THA), which has recently been promoted by Riviere et al 10 In contrast with the attractive but costly optimized positioning system® (Corin, Cirencester, UK), 39 , 40 the authors suggest a simple, low-cost and fast way to achieve patient-specific implant positioning by defining the optimal acetabular cup design and orientation based on the individual SHR. 10 In order to improve the positioning of the cup, the surgeon must first pre-operatively define an optimal cup orientation 7 , 11 , 18 , 41 , 42 based on the assessment of the individual dynamic functional acetabular orientation, 36 , 37 and second, intra-operatively precisely position the acetabular cup, ideally by simply using the transverse acetabular ligament (TAL).…”

Section: Discussionmentioning

confidence: 99%

Spine–hip relations in patients with hip osteoarthritis

et al. 2018

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Patients with hip osteoarthritis often have an abnormal spine-hip relation (SHR), meaning the presence of a clinically deleterious spine-hip and/or hip-spine syndrome.Definition of the individual SHR is ideally done using the EOS® imaging system or, if not available, with conventional lumbopelvic lateral radiographs.By pre-operatively screening patients with abnormal SHR, it is possible to refine total hip replacement (THR) surgical planning, which may improve outcomes.An important component of the concept of kinematically aligned total hip arthroplasty (KA THA) consists of defining the optimal acetabular cup design and orientation based on the assessment of an individual’s SHR, and use of the transverse acetabular ligament to adjust the cup positioning.The Bordeaux classification might advance the understanding of SHR and hopefully help improve THR outcomes.Cite this article: EFORT Open Rev 2018;3:39-44. DOI: 10.1302/2058-5241.3.170020

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The Use of Patient-Specific Instrumentation Improves the Accuracy of Acetabular Component Placement

Cited by 30 publications

References 30 publications

The accuracy of positioning of a custom-made implant within a large acetabular defect at revision arthroplasty of the hip

The accuracy of positioning of a custom-made implant within a large acetabular defect at revision arthroplasty of the hip

Correlation of Pelvic Incidence With Cam and Pincer Lesions

Spine–hip relations in patients with hip osteoarthritis

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