In this project we will evaluate the potential (dis)advantages of the two transfers. Additionally we will focus on the underlying mechanisms of the massive cuff tear and a tendon transfer in an experimental set-up.
ID
Source
Brief title
Condition
- Musculoskeletal and connective tissue neoplasms
Synonym
Research involving
Sponsors and support
Intervention
Outcome measures
Primary outcome
Pre-and post operative assessment consists of determining maximum arm Range of
Motion, pain and function scores and maximum arm force. To evaluate muscle
function changes, force direction depended electromyography, or principle
action, is used.
Secondary outcome
The extent in how well subjects perform the force tracking task used for the
EMG assessment is used as a parameter for arm motor control, which possibly
determinants successful outcome.
Background summary
Musculo-tendinous transfers of both latissimus dorsi (Gerber et al., 1988) and
teres major muscle (Celli et al., 1998) have been successfully proposed as a
treatment for irreparable rotator cuff tears (Celli et al., 2005,Degreef et
al., 2005,Miniaci and MacLeod, 1999). This success was attributed to
compensating glenohumeral stability, without counteracting the desired
elevation moment (Warner and Parsons, 2001). Which tendon transfer results in
the best functional outcome remains controversial, for the matter that one or
the other might be more effective in certain shoulder pathologies; or will have
similar functional improvement. A comparison between the two tendon transfers
in a clinical study was never done.
Study objective
In this project we will evaluate the potential (dis)advantages of the two
transfers.
Additionally we will focus on the underlying mechanisms of the massive cuff
tear and a tendon transfer in an experimental set-up.
Study design
In a cross-sectional study patients with a teres major tendon transfer and a
latissimus dorsi transfer are compared.
It is hypothized that glenohumeral stability is influenced by forces (muscles
close to the joint), while mobility is influenced by moments (muscles
relatively far from the joint). 20 patients with massive rotator cuff tears
(latissimus dorsi transfer group), will pre-operative be tested in an
experimental set-up with variations of external forces and moments applied to
the arm. By separately applying external forces and moments on the arm, this
hypothesis can be tested.
Study burden and risks
2,5 of arm tasks, inwhich overload can be the only burden. This will be
prevented as much as possible by taking regular resting pauses.
Albinusdreef 2
2333 ZA Leiden
Nederland
Albinusdreef 2
2333 ZA Leiden
Nederland
Listed location countries
Age
Inclusion criteria
op MRI aangetoonde scheur supra/infraspinatus
Exclusion criteria
eerdere schouder chirurgie
scheur subscapularis
Design
Recruitment
Followed up by the following (possibly more current) registration
No registrations found.
Other (possibly less up-to-date) registrations in this register
No registrations found.
In other registers
| Register | ID |
|---|---|
| CCMO | NL18289.058.07 |