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Cast Immobilization for Non-Displaced Scaphoid Fractures

Non-displaced Scaphoid Fractures: A Clinical Trial of Cast Immobilization Including vs. Excluding the Thumb

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00916539
Enrollment
62
Registered
2009-06-09
Start date
2007-07-31
Completion date
2013-12-31
Last updated
2017-04-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Non-displaced Scaphoid Fractures

Brief summary

This trial is trying to understand if immobilization of the thumb after a non-displaced scaphoid fracture affects recovery. The standard of care overseas is a cast that allows for free movement of the thumb, and in the United States it is a cast that immobilizes the thumb. This study is attempting to understand if there is a difference.

Interventions

DEVICECast that immobilizes the thumb

Cast that immobilizes the thumb

DEVICECast that does not immobilize the thumb

Cast that does not immobilize the thumb

Sponsors

Massachusetts General Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. 18 years or older 2. Isolated fracture of the scaphoid 3. No displacement of the scaphoid fracture on CT scan

Exclusion criteria

1. Associated ipsilateral ligament injury or fracture 2. Pregnant Patient

Design outcomes

Primary

MeasureTime frameDescription
Extent of Union10 weeksThe investigators looked at the extent of fracture union after immobilization.

Secondary

MeasureTime frameDescription
Modified Mayo Wrist Score6 monthsThe Modified Mayo Wrist Score evaluates wrist function after treatment. The total score ranges from 0 to 100, with higher scores indicating a better result.
Grip Strength6 months
Visual Analog Scale for Pain6 monthsThe pain scale measures the amount of pain on a scale from 0 to 10, where 10 indicates the most pain and 0 is no pain.
DASH Questionnaire6 monthsThis questionnaire measures the disability of the upper extremity. The disability scale is ranked from 0 (least disability) to 100 (most disability).
Range of Motion: Extension6 monthsRange of motion measures the ability to move the wrist joint after injury.
Range of Motion: Ulnar Deviation6 monthsRange of motion measures the ability to move the wrist joint after injury.
Range of Motion: Radial Deviation6 monthsRange of motion measures the ability to move the wrist joint after injury.
Range of Motion: Flexion6 monthsRange of motion measures the ability to move the wrist joint after injury.

Countries

United States

Participant flow

Participants by arm

ArmCount
Cast That Immobilizes the Thumb
Cast that immobilizes the thumb
31
Cast That Does Not Immobilize the Thumb
Cast that does not immobilize the thumb
31
Total62

Baseline characteristics

CharacteristicCast That Immobilizes the ThumbCast That Does Not Immobilize the ThumbTotal
Age, Continuous33 years
STANDARD_DEVIATION 14
42 years
STANDARD_DEVIATION 18
37.5 years
STANDARD_DEVIATION 17
Region of Enrollment
United States
31 participants31 participants62 participants
Sex: Female, Male
Female
9 Participants10 Participants19 Participants
Sex: Female, Male
Male
22 Participants21 Participants43 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
0 / 310 / 31
serious
Total, serious adverse events
0 / 310 / 31

Outcome results

Primary

Extent of Union

The investigators looked at the extent of fracture union after immobilization.

Time frame: 10 weeks

ArmMeasureValue (MEAN)Dispersion
Cast That Immobilizes the ThumbExtent of Union70 percentage of unionStandard Deviation 30
Cast That Does Not Immobilize the ThumbExtent of Union85 percentage of unionStandard Deviation 24
Secondary

DASH Questionnaire

This questionnaire measures the disability of the upper extremity. The disability scale is ranked from 0 (least disability) to 100 (most disability).

Time frame: 6 months

ArmMeasureValue (MEAN)Dispersion
Cast That Immobilizes the ThumbDASH Questionnaire5 units on a scaleStandard Deviation 8
Cast That Does Not Immobilize the ThumbDASH Questionnaire6 units on a scaleStandard Deviation 9
Secondary

Grip Strength

Time frame: 6 months

ArmMeasureValue (MEAN)Dispersion
Cast That Immobilizes the ThumbGrip Strength40 kilogramsStandard Deviation 21
Cast That Does Not Immobilize the ThumbGrip Strength37 kilogramsStandard Deviation 21
Secondary

Modified Mayo Wrist Score

The Modified Mayo Wrist Score evaluates wrist function after treatment. The total score ranges from 0 to 100, with higher scores indicating a better result.

Time frame: 6 months

ArmMeasureValue (MEAN)Dispersion
Cast That Immobilizes the ThumbModified Mayo Wrist Score92 units on a scaleStandard Deviation 9
Cast That Does Not Immobilize the ThumbModified Mayo Wrist Score87 units on a scaleStandard Deviation 19
Secondary

Range of Motion: Extension

Range of motion measures the ability to move the wrist joint after injury.

Time frame: 6 months

ArmMeasureValue (MEAN)Dispersion
Cast That Immobilizes the ThumbRange of Motion: Extension68 degreesStandard Deviation 15
Cast That Does Not Immobilize the ThumbRange of Motion: Extension67 degreesStandard Deviation 14
Secondary

Range of Motion: Flexion

Range of motion measures the ability to move the wrist joint after injury.

Time frame: 6 months

ArmMeasureValue (MEAN)Dispersion
Cast That Immobilizes the ThumbRange of Motion: Flexion76 degreesStandard Deviation 12
Cast That Does Not Immobilize the ThumbRange of Motion: Flexion72 degreesStandard Deviation 9
Secondary

Range of Motion: Radial Deviation

Range of motion measures the ability to move the wrist joint after injury.

Time frame: 6 months

ArmMeasureValue (MEAN)Dispersion
Cast That Immobilizes the ThumbRange of Motion: Radial Deviation20 degreesStandard Deviation 9
Cast That Does Not Immobilize the ThumbRange of Motion: Radial Deviation19 degreesStandard Deviation 7
Secondary

Range of Motion: Ulnar Deviation

Range of motion measures the ability to move the wrist joint after injury.

Time frame: 6 months

ArmMeasureValue (MEAN)Dispersion
Cast That Immobilizes the ThumbRange of Motion: Ulnar Deviation38 degreesStandard Deviation 13
Cast That Does Not Immobilize the ThumbRange of Motion: Ulnar Deviation32 degreesStandard Deviation 8
Secondary

Visual Analog Scale for Pain

The pain scale measures the amount of pain on a scale from 0 to 10, where 10 indicates the most pain and 0 is no pain.

Time frame: 6 months

ArmMeasureValue (MEAN)Dispersion
Cast That Immobilizes the ThumbVisual Analog Scale for Pain1.1 units on a scaleStandard Deviation 1.4
Cast That Does Not Immobilize the ThumbVisual Analog Scale for Pain0.8 units on a scaleStandard Deviation 1.3

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026