Calcifying tendinitis - evaluation of the prevalence of a coincidental outletimpingement analyzing radiological and intraoperative criteria

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00011712

Enrollment

Registered

2017-02-06

Start date

2017-02-02

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

M75.3 M75.4

Interventions

Group 1: This prospective descriptive observational study evaluates the prevalence of simultaneous outletimpingement in patients with calcifying tendinitis, considering either the pre- and postoperati

3-6 months after the operation, we will do a telephone interview using the same questionnaire. In addition, we will evaulate the radiologic extent of removal of the calcification when intraoperative x

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: - patients with calcifying tendinitis which has proven refractory to conservative treatment and who are treated with shoulder arthroscopy in our clinic - minimum age 18 years - no maximum age

Exclusion criteria

Exclusion criteria: - lack of consentability - lack of consent for participation - incomplete or nonevaluable data - preoperative spontaneous resorption of the calcification - relevant additional intraoperative pathologies - reoperation

Design outcomes

Primary

Measure	Time frame
Evaluation of the prevalence of a conincident outletimpingement in patients with calcifying tendinitis: - classification of the x-rays according to Bigliani, acromial index, acromial slope (Bigliani/Kitay) and lateral acromion angle -> definition of an outletimpingement as follows: Type II or III of the Bigliani classification; acromial slope >= 25,7%; acromial index >= 0,73; lateral acromial angle <= 83°. As we have to expect also suboptimal radiographs, e.g. for projection errors in limited recording condition (the patients participating in the study are not supposed to have extra x-rays done if an x-ray comes out as suboptimal), one fulfilled criteria of those mentioned above is sufficient for the definition of a radiological outletimpingement. - qualitative Rating of the intraoperative arthroscopic views of the subacromial space (view from lateral; evaluation of alignment of the acromial caudal surface compared with a shaver which is inserted from dorsally after cut of the coracoacromial Ligament): a parallel alignment means no impingement; a non-parallel alignment or nudging of the shaver to the caudal surface of the acromion is defined asl intraoperativ outletimpingement.	—

Measure

Time frame

Evaluation of the prevalence of a conincident outletimpingement in patients with calcifying tendinitis: - classification of the x-rays according to Bigliani, acromial index, acromial slope (Bigliani/Kitay) and lateral acromion angle -> definition of an outletimpingement as follows: Type II or III of the Bigliani classification; acromial slope >= 25,7%; acromial index >= 0,73; lateral acromial angle <= 83°. As we have to expect also suboptimal radiographs, e.g. for projection errors in limited recording condition (the patients participating in the study are not supposed to have extra x-rays done if an x-ray comes out as suboptimal), one fulfilled criteria of those mentioned above is sufficient for the definition of a radiological outletimpingement. - qualitative Rating of the intraoperative arthroscopic views of the subacromial space (view from lateral; evaluation of alignment of the acromial caudal surface compared with a shaver which is inserted from dorsally after cut of the coracoacromial Ligament): a parallel alignment means no impingement; a non-parallel alignment or nudging of the shaver to the caudal surface of the acromion is defined asl intraoperativ outletimpingement.

—

Secondary

Measure	Time frame
radiological proof of a change in the calcification in the postoperative x-ray	—

Countries

Germany

Contacts

Public ContactLucia Braun-Munzinger

Klinik für Orthopädie, Unfallchirurgie und Sportmedizin - Klinikum Agnes Karll Laatzen - Klinikum Region Hannover

lucia.braun-munzinger@krh.eu+49-511-8208 2300

Outcome results

None listed

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