UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000032215
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

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Basic information

Public 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)

Acronym

Discussion about the pulley function of the hook of hamate and positional relation between the hook of hamate and flexor tendon using CT scans.

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)

Scientific Title:Acronym

Discussion about the pulley function of the hook of hamate and positional relation between the hook of hamate and flexor tendon using CT scans.

Region

Japan


Condition

Condition

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).

Classification by specialty

Orthopedics

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

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.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

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.

Key secondary outcomes

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.


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

No treatment

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Diagnosis

Type of intervention

Device,equipment

Interventions/Control_1

Their hands were imaged in extension of the fingers on CT using tendon conditions (A SOMATOM Force CT scanner (SIEMENS Healthcare K.K., Japan)

Interventions/Control_2

Their hands were imaged flexion of the fingers on CT using tendon conditions (A SOMATOM Force CT scanner (SIEMENS Healthcare K.K., Japan)

Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

20 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

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.

Key exclusion criteria

Subject who did not obtain consent and the patients who judged inappropriate as subjects.

Target sample size

20


Research contact person

Name of lead principal investigator

1st name
Middle name
Last name Kiyohito NAITO

Organization

Juntendo University School of Medicine

Division name

Department of Orthopaedics

Zip code


Address

2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421 Japan.

TEL

03-3813-3111

Email

knaito@juntendo.ac.jp


Public contact

Name of contact person

1st name
Middle name
Last name Kiyohito NAITO

Organization

Juntendo University School of Medicine

Division name

Department of Orthopaedics

Zip code


Address

2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421 Japan.

TEL

03-3813-3111

Homepage URL


Email

knaito@juntendo.ac.jp


Sponsor or person

Institute

Juntendo University School of Medicine

Institute

Department

Personal name



Funding Source

Organization

Juntendo University School of Medicine

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization


Address


Tel


Email



Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2018 Year 04 Month 14 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

No longer recruiting

Date of protocol fixation

2016 Year 08 Month 02 Day

Date of IRB


Anticipated trial start date

2018 Year 04 Month 14 Day

Last follow-up date


Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2018 Year 04 Month 12 Day

Last modified on

2018 Year 04 Month 12 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000036591


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name