Unique ID issued by UMIN | UMIN000032215 |
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Receipt number | R000036591 |
Scientific Title | Discussion about the pulley function of the hook of hamate and positional relation between the hook of hamate and flexor tendon using CT scans. (intervention study) |
Date of disclosure of the study information | 2018/04/14 |
Last modified on | 2018/04/12 17:43:18 |
Discussion about the pulley function of the hook of hamate and positional relation between the hook of hamate and flexor tendon using CT scans. (intervention study)
Discussion about the pulley function of the hook of hamate and positional relation between the hook of hamate and flexor tendon using CT scans.
Discussion about the pulley function of the hook of hamate and positional relation between the hook of hamate and flexor tendon using CT scans. (intervention study)
Discussion about the pulley function of the hook of hamate and positional relation between the hook of hamate and flexor tendon using CT scans.
Japan |
The patients who visit our hospital and suspected of the injury of the hook of hamate, and the healthy volunteers aged 20 years or older (public postings on the homepage).
Orthopedics |
Others
NO
The fracture of the hook of the hamate is relatively rare among carpal fractures and is likely to be overlooked. The treatment methods include conservative treatment, excision, and osteosynthesis, with no consistent standard.But excision is frequently selected for injuries caused by sports, such as baseball and golf, aiming at early return to competition.A high rate of nonunion after conservative treatment of fracture of the hook of the hamate has been reported, and the incidence is high in fractures of the base due to insufficient blood flow to the hook of the hamate. When a nonunion is formed in the hook of the hamate, complications develop such as rupture of the ulnar-side finger flexor tendon, ulnar neuropathy, and subluxation of the pisiform-triquetral joint. As rupture of the ulnar-side finger flexor tendon may be induced, the hook of the hamate is suggested to function as a pulley of the ulnar-side finger flexor tendon, but this has not been anatomically demonstrated.
The aim of this study was to measure and compare the curvature radii of the little and middle finger flexor tendons on CT acquired using tendon conditions to examine whether the hook of the hamate functions as a pulley of the ulnar-side finger flexor tendon, to assess the height of nonunion formation injuring the ulnar-side finger flexor tendon, the positional relationship between the hook of the hamate and little finger flexor tendon was evaluated on CT scans.
Safety,Efficacy
To evaluate the pulley function of the hook of the hamate, the curvature radii of the little and middle finger flexor tendons at the hook of the hamate were calculated based on the visualized flexor tendons on CT. In addition, changes in these radii with extension and flexion of the fingers were examined.
The position of the little finger flexor tendon was determined regarding the height of the hook of the hamate as 100%.Furthermore, changes in the positions of the flexor digitorum profundus and superficialis tendons with extension and flexion of the fingers were examined.
Interventional
Parallel
Non-randomized
Open -no one is blinded
No treatment
2
Diagnosis
Device,equipment |
Their hands were imaged in extension of the fingers on CT using tendon conditions (A SOMATOM Force CT scanner (SIEMENS Healthcare K.K., Japan)
Their hands were imaged flexion of the fingers on CT using tendon conditions (A SOMATOM Force CT scanner (SIEMENS Healthcare K.K., Japan)
20 | years-old | <= |
Not applicable |
Male and Female
The patients who visit our hospital and are suspected to have a CT scanned (including patients who took CT scan in the past), and healthy volunteers aged 20 years or older (public postings on the homepage).
After receiving sufficient explanation for participation intros research, subjects who gained document consent by the free will with sufficient understanding.
Subject who did not obtain consent and the patients who judged inappropriate as subjects.
20
1st name | |
Middle name | |
Last name | Kiyohito NAITO |
Juntendo University School of Medicine
Department of Orthopaedics
2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421 Japan.
03-3813-3111
knaito@juntendo.ac.jp
1st name | |
Middle name | |
Last name | Kiyohito NAITO |
Juntendo University School of Medicine
Department of Orthopaedics
2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421 Japan.
03-3813-3111
knaito@juntendo.ac.jp
Juntendo University School of Medicine
Juntendo University School of Medicine
Other
NO
2018 | Year | 04 | Month | 14 | Day |
Unpublished
No longer recruiting
2016 | Year | 08 | Month | 02 | Day |
2018 | Year | 04 | Month | 14 | Day |
2018 | Year | 04 | Month | 12 | Day |
2018 | Year | 04 | Month | 12 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000036591
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