manugraphy^® – Hand assessment.

System: novel manugraphy; sensor-coated cylinder; regional pressure-map analysis

Sample: 49 patients at 3 months; 38 at 6 months; 35 at 12 months

Data use: Primary measurements

Evidence of use: Full text reports repeated manugraphy measurements after fracture surgery and acknowledges novel for supplying the system and supporting data processing.

Electronic publication date: 2025-05-16

Notes: Some underlying results were previously presented in a Rostock dissertation; the dissertation is not counted as a second journal article.

System: Manugraphy system (novel GmbH); 100-, 150- and 200-mm circumference cylinders

Sample: 27 patients with unilateral cubital tunnel syndrome

Data use: Primary measurements

Evidence of use: Methods explicitly identify novel Manugraphy, three sensor-covered cylinders and pliance software, alongside separate Jamar and pinch-force measurements.

Electronic publication date: 2023-09-11

Notes: Online 11 September 2023; January 2024 journal issue. Classified as manugraphy hardware use despite pliance analysis software.

System: novel manugraphy; cylinder size selected by hand length

Sample: 28 patients analysed: 9 carpal tunnel, 12 trigger finger and 7 Dupuytren

Data use: Primary measurements

Evidence of use: Full text explicitly names novel manugraphy and reports preoperative and postoperative regional force measurements over one year for three hand disorders.

Electronic publication date: 2023-07-24

Notes: Uses the pre-existing 2018 Cai healthy comparison cohort; comparison participants are not a new independent cohort.

System: Previously recorded Manugraphy cylinder data; seven anatomical regions

Sample: Reanalysis of the earlier 54-subject dataset

Data use: Secondary analysis of measured data

Evidence of use: The article explicitly reuses manugraphy measurements from a previous 54-subject study to compare statistical and machine-learning classifications of grip effort.

Electronic publication date: 2023-01-16

Notes: Secondary analysis of the 2018 maximal/submaximal-effort dataset; no new independent measurement cohort.

System: Manugraphy; three cylinder sizes

Sample: 10 patients with post-traumatic PIP-joint arthrodesis

Data use: Primary measurements

Evidence of use: The bilingual abstract explicitly states that grip force and load distribution were measured by manugraphy for the hand, individual fingers and phalanges.

Electronic publication date: 2022-08-29

Original title: Auswirkungen der Arthrodese eines einzelnen Mittelgelenkes von Zeige-, Mittel- oder Ringfinger auf Hand- und Fingerkraft sowie auf die Druckverteilung der Hand.

Language: German

Notes: English title is the PubMed translation; the article is in German.

System: Manugraphy cylinder measurements; two grip sizes

Sample: 10 patients; postoperative follow-up 5–128 months

Data use: Primary measurements

Evidence of use: The journal reports cylinder-based finger and phalangeal force testing and indexes manugraphy; the matching 2021 GMS abstract explicitly describes Manugraphie measurements.

Electronic publication date: 2021-12-03

Notes: Online 3 December 2021; journal issue April 2022. Conference record C002 reports 100-/200-mm circumferences; the journal abstract says 10-/20-cm diameters. This inconsistent wording is not treated as a hardware specification.

System: manugraphy system (novel, Munich); 200-mm circumference cylinder

Sample: 23 enrolled patients; 19 completed follow-up

Data use: Primary measurements

Evidence of use: Methods explicitly identify novel manugraphy, describing pressure maps and regional forces recorded before surgery and at three- and six-month follow-ups.

Electronic publication date: 2021-01-12

Notes: Published 12 January 2021. Although assigned to volume 7/eCollection 2020 and a DOI containing 2020, the publisher's citation year is 2021.

System: Manugraphy; three cylinder sizes; regional hand and finger load analysis

Sample: 10 patients: 2 with index-finger and 8 with middle-finger distal interphalangeal joint fusion

Data use: Primary measurements

Evidence of use: The PubMed bilingual abstract explicitly reports postoperative manugraphy in ten patients, using three cylinder sizes to assess total grip force, finger forces and hand load distribution against the opposite hand.

Electronic publication date: 2018-07-25

Original title: Auswirkungen der Versteifung des Zeige- bzw. Mittelfingerendgelenkes auf Hand- und Fingerkraft sowie auf die Druckverteilung.

Language: German

Notes: PubMed records the June 2018 issue and electronic article date 25 July 2018. English title shown; the article is in German.

System: Manugraphy system; 150- or 200-mm circumference cylinder according to hand size

Sample: 40 healthy right-handed subjects

Data use: Primary measurements

Evidence of use: The primary abstract describes instrumented-cylinder measurements and indexes Manugraphy system as a keyword; the 2023 Grüner article identifies this earlier comparison cohort.

Electronic publication date: 2018-07-10

Notes: Author order follows PubMed and the publisher-linked RWTH record; one institutional listing incorrectly puts Cai last. The 2023 surgical-outcomes article uses this pre-existing reference cohort.

System: 200-mm Manugraphy cylinder

Sample: 54 healthy subjects; bilateral testing on two days

Data use: Primary measurements

Evidence of use: Subjects performed maximal and submaximal grip tests with a Manugraphy cylinder; the hand's contact area was divided into seven anatomical regions.

Electronic publication date: 2018-03-16

Notes: The 2023 machine-learning article reanalyses this dataset; the two publications are not independent cohorts.

System: novel manugraphy; 150- and 200-mm circumference cylinders

Sample: 152 healthy adults: 76 women and 76 men

Data use: Primary measurements

Evidence of use: Full methods describe the novel measuring cylinders, calibrated capacitive sensors and repeated bilateral testing alongside an electronic Jamar dynamometer.

Electronic publication date: 2018-02-14

Notes: Possible cohort overlap with the 2014 validation and 2017 load-distribution papers.

System: Manugraphy system (novel, Munich); three pressure-matrix cylinders

Sample: 152 healthy volunteers; three cylinder sizes; three testing days

Data use: Primary measurements

Evidence of use: The methods explicitly identify the novel Manugraphy system and describe seven-region and phalangeal analyses during cylinder gripping.

Electronic publication date: 2017-02-28

Notes: Counted in 2017, the journal issue year. The DOI contains 2016 and some reference lists/manufacturer listings use 2016. Possible cohort overlap with the 2014 and 2018 validation-related articles.

System: Manugraphy system; three cylinder sizes

Sample: 12 patients with total wrist fusion and 12 with midcarpal fusion

Data use: Primary measurements

Evidence of use: The study measured total grip force and seven regional loads in operated and contralateral hands with the Manugraphy system.

Electronic publication date: 2015-09-26

Notes: A later Yearbook summary with the same title is not counted as an additional experiment.

System: novel manugraphy; 150- and 200-mm circumference cylinders

Sample: 152 healthy volunteers; two centres; three testing days

Data use: Primary measurements

Evidence of use: The methods explicitly name novel Manugraphy and describe repeated grip testing against a digital Jamar dynamometer using two instrumented cylinders.

Electronic publication date: 2014-06-17

Notes: Possible cohort overlap with the 2017 load-distribution and 2018 influential-parameters articles; do not add participant counts as independent samples.