Calibration and validation of 6 DOFs instrumented spatial linkage for biomechanical applications. A practical approach

Sholukha, Victor; Salvia, Patrick; Hilal, Isam Hilal; Feipel, Véronique; Rooze, Marcel; Jan, Serge Van Sint

doi:10.1016/j.medengphy.2003.10.002

Cited by 25 publications

(10 citation statements)

References 26 publications

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“…Homemade transducers can be used but they could pose problems of calibration, reliability and accuracy [17][18][19][20][21]. More recently, portable kinetic systems based on a low profile commercial load cell connected to a recording device have been introduced [22][23][24][25].…”

Section: Portable Kinetic Systemmentioning

confidence: 99%

Apparatus for monitoring load bearing rehabilitation exercises of a transfemoral amputee fitted with an osseointegrated fixation: A proof-of-concept study

Frossard

Gow

Hagberg³

et al. 2010

Gait & Posture

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The purpose of this proof-of-concept study was to determine the relevance of direct measurements to monitor the load applied on the osseointegrated fixation of transfemoral amputees during static load bearing exercises. The objectives were (A) to introduce an apparatus using a three-dimensional load transducer, (B) to present a range of derived information relevant to clinicians, (C) to report on the outcomes of a pilot study and (D) to compare the measurements from the transducer with those from the current method using a weighing scale. One transfemoral amputee fitted with an osseointegrated implant was asked to apply 10 kg, 20 kg, 40 kg and 80 kg on the fixation, using self-monitoring with the weighing scale. The loading was directly measured with a portable kinetic system including a six-channel transducer, external interface circuitry and a laptop. As the load prescribed increased from 10 kg to 80 kg, the forces and moments applied on and around the antero-posterior axis increased by four-fold anteriorly and 14-fold medially, respectively. The forces and moments applied on and around the medio-lateral axis increased by nine-fold laterally and 16-fold from anterior to posterior, respectively. The long axis of the fixation was overloaded and underloaded in 17% and 83% of the trials, respectively, by up to + or - 10%. This proof-of-concept study presents an apparatus that can be used by clinicians facing the challenge of improving basic knowledge on osseointegration, for the design of equipment for load bearing exercises and for rehabilitation programs.

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Section: Portable Kinetic Systemmentioning

confidence: 99%

Apparatus for monitoring load bearing rehabilitation exercises of a transfemoral amputee fitted with an osseointegrated fixation: A proof-of-concept study

Frossard

Gow

Hagberg³

et al. 2010

Gait & Posture

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“…In a pose-measuring approach, the end effector is moved and its pose is measured by an external metrology system, e.g. 3D digitizers (Sholukha et al, 2004). In a pose-matching approach, the end effector is moved to match some particular fixture in a reference structure, e.g.…”

Section: Data Collection and Acquisition Protocolmentioning

confidence: 99%

“…A settling time is nevertheless required to shift in between different acquisition phases. This technique avoids a tedious data collection process, which usually characterizes a calibration approach based on the use of 3D digitizer or calibrated plates, as done in the work by Sholukha et al (2004) and Van Sint Jan et al (2002).…”

Section: Article In Pressmentioning

confidence: 99%

“…Liu and Panjabi (1996) applied a non-linear numerical calibration procedure to a planar 3-DOF ISL, removing the assumption of linear performance of potentiometers, which has been used that far. Recently, Sholukha et al (2004) proposed a method for the calibration of a 6R-ISL based on the use of a seven-order polynomial correction curve for potentiometers performance. They used a 3D digitizer for data collection and a ball-andsocket joint for validation.…”

Section: Introductionmentioning

confidence: 99%

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Validation of a calibration technique for 6-DOF instrumented spatial linkages

Gatti

Danieli

2007

Journal of Biomechanics

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“…The real precision of the measurements depends of the actual experimental settings. Previously published results indicated that the experimental digitizing protocol used for this paper showed a precision of 0.8 § 0.5 mm [11]. Spatial locations of the above-deWned anatomical landmarks (AA, DELTIP, REN, REM, LCON, MCON) were digitised in the same reference system.…”

Section: Measurement Proceduresmentioning

confidence: 99%

Quantified relationships of the radial nerve with the radial groove and selected humeral landmarks

Jan

Van²,

Rooze

2008

Surg Radiol Anat

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Anatomical relationships between the radial nerve, the deltoid muscle insertions and several bony landmarks have been investigated to assess the feasibility of surgical transfer of the deltoid transfer during humeral osteotomy. Eleven embalmed human specimens were dissected. Each specimen included the whole thorax, both shoulders and upper limbs. Spatial position of the radial nerve along the radial groove, the deltoid muscle, and several anatomical landmarks was digitised using a threedimensional (3D) digitiser. Sixteen distances and one angle characterizing the relationships between the path of the radial nerve and the landmarks were processed. Results showed that the average distance between the emergence of the radial nerve from the lateral intermuscular septum and the most distal insertion point of the deltoid muscle on the humeral bone shaft was 47.6 § 18.5 mm. The angle between a line extending from the entry of the radial nerve into the radial sulcus and its point of emergence (REN-REM line), and on the other hand a line running from the radial emergence and the deltoid muscle tip (REM-DEL-TIP line) was in average 23.5 § 6.7°. The length of four lines running perpendicular to REM-DELTIP and crossing each quarter of the REN-REM line were interpolated. The length of these four lines was, from proximal to distal, 31.3 § 11.5 mm; 23.0 § 7.8 mm; 16.5 § 6.2 mm; and 7.6 § 2.6 mm, respectively. These results described in a quantitative way the path of the radial nerve in respect to the humeral bone and the deltoid muscle. These data will be used for further development of a humeral osteotomy protocol taking into account the spatial position of the radial nerve to orientate safely the surgical tools used to cut the humeral shaft.

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Calibration and validation of 6 DOFs instrumented spatial linkage for biomechanical applications. A practical approach

Cited by 25 publications

References 26 publications

Apparatus for monitoring load bearing rehabilitation exercises of a transfemoral amputee fitted with an osseointegrated fixation: A proof-of-concept study

Apparatus for monitoring load bearing rehabilitation exercises of a transfemoral amputee fitted with an osseointegrated fixation: A proof-of-concept study

Validation of a calibration technique for 6-DOF instrumented spatial linkages

Quantified relationships of the radial nerve with the radial groove and selected humeral landmarks

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