Related Experiment Video
Updated: Feb 10, 2026

A Novel Arthroscopic Medial Knot-Tying Suture-Bridge Repair with Rip-Stop Technique for Rotator Cuff Tears
Published on: January 13, 2026
The comparison of arthroscopic acromioplasty with and without acromioclavicular coplaning
Nuri Aydın1, Barış Kocaoğlu, Ender Sarıoğlu
1Department of Orthopaedic and Traumatology, İstanbul University Cerrahpaşa Faculty of Medicine, İstanbul-Turkey. nuri.aydin@istanbul.edu.tr.
Background:
Coplaning means the removal of medial acromial spurs and inferior aspect of the distal clavicle. The aim of the study was to evaluate the outcomes of arthroscopic acromioplasty with and without coplaning in patients without acromioclavicular (AC) joint arthritis.
Methods:
Because of impingement syndrome, arthroscopic subacromial decompression and acromioplasty was performed in Group 1 (9 males/31 female). In addition, coplaning was performed in Group 2 (8 males/21 females) by two different surgeons. The mean age was 48 in Group 1, 46 in Group 2. The mean follow-up was 50 months and 44 months, respectively.
Results:
Constant score, cross-body adduction test and AC joint tenderness was used for follow-up. The mean preoperative Constant scores were 45 points (range: 34-76 points) in Group 1, 39 points (range: 32-69 points) in Group 2. The mean Constant scores at the latest follow-up was 78 points (range: 68-100 points) for Group 1, 84 points (range: 72-100 points) for Group 2. There was no statistically difference between two groups at the latest follow-up (p<0.05). In two patients in Group 2, cross-body adduction test was positive but asymptomatic.
Conclusion:
Excision of the inferior side of the lateral clavicle to the level of the acromion with minimal disruption of the joint capsule does not develop AC joint symptoms in long-term follow-up.
More Related Videos
Related Concept Videos
The Sense of Self: Reflected Self-Appraisal and Social Comparison
Multiple Comparison Tests
It would be easy to compare two samples using a significance alpha level of 0.05. In other words, there is only one sample pair to be compared. However, it would be difficult to identify a significantly different sample if the number...
Evolutionary Relationships through Genome Comparisons
Comparison Between Electrical And Gravitational Forces
Since both are inverse square law forces, the distance gets canceled when the ratio of the two forces is considered. Instead, the ratio of the electrical and gravitational forces depends on...
Comparison between RL and RC circuits
Molecular Comparison of Gases, Liquids, and Solids

