Biomechanical consequences of a combined palmar and dorsal scapholunate ligament reconstruction: an evaluation using 4D CT.

Biomechanical consequences of a combined palmar and dorsal scapholunate ligament reconstruction: an evaluation using 4D CT. - 4D CT evaluation SL-reconstruction

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

NL-OMON

Registry ID

NL-OMON52123

Enrollment

Registered

2021-02-18

Start date

2021-03-25

Completion date

Unknown

Last updated

2024-08-19

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

Conditions

rupture of the ligament between the boatshaped and the moonshaped carpal bone Scapholunate ligament injury

Interventions

None listed

Eligibility

Age

18 Years to 64 Years

Inclusion criteria

Inclusion criteria: Patients who underwent one-sided palmar and dorsal reconstruction of the SL ligament after traumatic rupture with a maximum follow up of 5 years Patients who are over the age of 16 years Patients who are willing and able to give informed consent

Exclusion criteria

Exclusion criteria: Surgical history of the carpus. A history of trauma (treated with a cast or surgically) tot the contralateral wrist Not able to understand the written informed consent Pregnancy (Peri-)lunar dislocation Pain, to the degree that the patient is not able or willing to move the hand

Design outcomes

Primary

Measure	Time frame
The aim is to gain dynamic information (motion patterns) of the scaphoid relative to the lunate. 3- Dimensional movement is divided in six parameters. For comparison of the scaphoid relative to the lunate, twee mean parameters (rotation and translation) have to be calculated. For these experiments the apparent changes in position of the fragments with respect to each other are displayed as a rotation around a Helical Axis of Motion (HAM) and translations along the HAM. Our aim is to determine a standard deviation of motion of the scaphoid and lunate using a 95% confidence interval.	—

Measure

Time frame

The aim is to gain dynamic information (motion patterns) of the scaphoid relative to the lunate. 3- Dimensional movement is divided in six parameters. For comparison of the scaphoid relative to the lunate, twee mean parameters (rotation and translation) have to be calculated. For these experiments the apparent changes in position of the fragments with respect to each other are displayed as a rotation around a Helical Axis of Motion (HAM) and translations along the HAM. Our aim is to determine a standard deviation of motion of the scaphoid and lunate using a 95% confidence interval.

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Secondary

Measure	Time frame
For analysis of the wrist joint, every motion (HAM), 3 translations parameters and 3 rotation parameters of the carpal bones will be defined in relation to radial positioning. Comparison of the operated and contralateral wrist of every patient will be made. The expectation is that there is a significant change in dynamic of the carpal during motion of the wrist after combined scapholunate reconstruction. The hypothesis is that the volar reconstruction is not physiological.	—

Measure

Time frame

For analysis of the wrist joint, every motion (HAM), 3 translations parameters and 3 rotation parameters of the carpal bones will be defined in relation to radial positioning. Comparison of the operated and contralateral wrist of every patient will be made. The expectation is that there is a significant change in dynamic of the carpal during motion of the wrist after combined scapholunate reconstruction. The hypothesis is that the volar reconstruction is not physiological.

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Countries

Netherlands

Outcome results