Software for compartmental translation analysis and virtual three-dimensional visualization of the pivot shift phenomenon

Suero, Eduardo M.; Citak, Musa; Choi, Daniel; Bosscher, Marianne Roberta Frederiek; Citak, Mustafa; Pearle, Andrew D.; Plaskos, Christopher

doi:10.3109/10929088.2011.619704

Cited by 8 publications

(8 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All the tests were performed either simulating the loading conditions by means of robotic systems or specific set‐ups (simulated and mechanized pivot shift test). All the tracking systems were used in an invasive manner to guarantee the correct kinematic analysis; they were based on electromagnetic sensors [2, 4, 6, 17, 28, 37, 66, 102], navigation systems (generally with optoelectronic localizers) [8–12, 19–22, 25, 32, 54, 55, 79–82, 89, 98, 103, 104], mechanized systems [73–75, 85] or robotic devices [26, 31, 49, 105, 107, 109, 110] directly connected to the bones. In order to validate some of these specific set‐ups, image analysis systems and accelerometers were also used in in vitro conditions [2, 6].…”

Section: Resultsmentioning

confidence: 99%

Quantifying the pivot shift test: a systematic review

Lopomo

Zaffagnini

Amis

2013

Knee Surg Sports Traumatol Arthrosc

View full text Add to dashboard Cite

Several methodologies have been identified and developed to quantify pivot shift test. However, clinical professionals are still lacking a 'gold standard' method for the quantification of knee joint dynamic laxity. A widespread adoption of a standardized pivot shift manoeuvre and measurement method to allow objective comparison of the results of ACL reconstructions is therefore desirable. Further development of measurement methods is indeed required to achieve this goal in a routine clinical scenario.

show abstract

Section: Resultsmentioning

confidence: 99%

Quantifying the pivot shift test: a systematic review

Lopomo

Zaffagnini

Amis

2013

Knee Surg Sports Traumatol Arthrosc

View full text Add to dashboard Cite

show abstract

“…50 The pivot shift phenomenon has been mapped and characterised using invasive navigation-based technology, allowing comparison of ACL reconstruction techniques. 51-55 However, a non-invasive adaptation of this has not yet tested in the clinical setting. Until more sensitive means of analysing tibial rotation are available, it may be more useful to detect AP instability for diagnosis of cruciate pathology and evaluation of surgical reconstruction.…”

Section: Discussionmentioning

confidence: 99%

Non-invasive, non-radiological quantification of anteroposterior knee joint ligamentous laxity

Russell

Deakin

Fogg

et al. 2013

Bone & Joint Research

View full text Add to dashboard Cite

ObjectivesWe performed in vitro validation of a non-invasive skin-mounted system that could allow quantification of anteroposterior (AP) laxity in the outpatient setting.MethodsA total of 12 cadaveric lower limbs were tested with a commercial image-free navigation system using trackers secured by bone screws. We then tested a non-invasive fabric-strap system. The lower limb was secured at 10° intervals from 0° to 60° of knee flexion and 100 N of force was applied perpendicular to the tibia. Acceptable coefficient of repeatability (CR) and limits of agreement (LOA) of 3 mm were set based on diagnostic criteria for anterior cruciate ligament (ACL) insufficiency.ResultsReliability and precision within the individual invasive and non-invasive systems was acceptable throughout the range of flexion tested (intra-class correlation coefficient 0.88, CR 1.6 mm). Agreement between the two systems was acceptable measuring AP laxity between full extension and 40° knee flexion (LOA 2.9 mm). Beyond 40° of flexion, agreement between the systems was unacceptable (LOA > 3 mm).ConclusionsThese results indicate that from full knee extension to 40° flexion, non-invasive navigation-based quantification of AP tibial translation is as accurate as the standard validated commercial system, particularly in the clinically and functionally important range of 20° to 30° knee flexion. This could be useful in diagnosis and post-operative evaluation of ACL pathology.Cite this article: Bone Joint Res 2013;2:233–7.

show abstract

“…Tests were repeated after sectioning the ACL. ATT was recorded in real time using a computer navigation system (Praxim, Grenoble, France), with dedicated ACL software with an accuracy of 1 mm and 1° [19]. Reflective reference arrays were attached to the femur and the tibia, 15 cm above and below the joint line, using two pairs of 4-mm Schanz pins.…”

Section: Methodsmentioning

confidence: 99%

“…For the Lachman test, an anterior pulling force of a mean 12 kg was applied using a hand‐held pull‐type spring scale attached to the tibia through an eyelet screw fixed to the anterior tibial crest, 7 cm below the joint line. ATT was defined as the range in translation from the tibiofemoral resting point at the beginning of each trial to the maximum anterior position of the tibia in the sagittal plane, compared to a reference motion path taken during the navigation system’s registration process [19].…”

Section: Methodsmentioning

confidence: 99%