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Comparison of the internal rotational force after implantation of an inverse shoulder prosthesis with and without subscapularis muscle deposition - a prospectively randomized, double-blind study

Comparison of the internal rotational force after implantation of an inverse shoulder prosthesis with and without subscapularis muscle deposition - a prospectively randomized, double-blind study

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00021484
Enrollment
40
Registered
2020-05-11
Start date
2019-08-29
Completion date
Unknown
Last updated
2025-04-07

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

Conditions

Osteoarthritis, unspecified : shoulder region [clavicle, scapula, acromioclavicular, glenohumeral, sternoclavicular joint]. M19.91 M75.1

Interventions

Group 1: Implantation of an inverse shoulder prosthesis with preservation of the sucscapularis muscle. Group 2: Implantation of an inverse shoulder prosthesis with removal of the subscapularis muscle

Sponsors

Orthopädische Klinik der Medizinischen Hochschule Hannover im Diakovere Annastift
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: -men and women over the age of 18 -Primary implantation of an inverse shoulder prosthesis

Exclusion criteria

Exclusion criteria: -Implantation in post-traumatic conditions -Neurological diseases that limit shoulder strength -Existing damage or reconstruction of the subscapularis muscle

Design outcomes

Primary

MeasureTime frame
Assessment of the loss of internal rotational force in comparison of the groups of preserved versus recessed subscapular muscle after implantation of an inverse shoulder prosthesis, the preoperative force being used as a reference. For this purpose, data is collected on the day of admission before the planned operation and during the follow-up examinations for 3, 12 and 24 months.

Secondary

MeasureTime frame
-Assessment of the functional result based on the constant score -Assessment of the functional result based on the range of motion, especially internal rotation -Detection of complications, especially luxations For this purpose, data is collected on the day of admission before the planned operation and during the follow-up examinations for 3, 12 and 24 months.

Countries

Germany

Contacts

Public ContactYvonne Noll

Orthopädische Klinik der Medizinischen Hochschule Hannover im Diakovere Annastift, Leitung Klinisches Studienmanagement

yvonne.noll@diakovere.de0511-5354-649

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026