ACromioclavicular joint Osteolysis lateral clavicle

1. Acromioclavicular (AC) Joint
Excision
due to Osteolysis
• Lennard Funk
• Jameson Lua

2. Acromioclavicular (AC) Joint Osteolysis
• Bone eroded faster than it is replaced
• Caused by excessive overhead motions
• Commonly seen in:
• Weightlifters
• Rugby players
• Symptoms
• Pain & tenderness
• Limited range of motion AC Joint Clavicle
Acromion

3. Management
• Conservative
• Steroid injection
• Surgical - joint excision
• Open
• Arthroscopic
• Direct
• Indirect

4. Current Literature
• Direct arthroscopic technique
• No previous large studies
• Only 1 clinical review in 1995
• 29 patients
• 93% satisfactory results at 2 year follow-up

5. Aims
• Evaluate clinical outcomes
• Direct arthroscopic AC joint excision
• For osteolysis

6. Methods
• Inclusion criteria
• Procedures over 2 year period
• 16 patients identified
• Outcome measures
• Constant Shoulder Score
• QuickDASH score
• Satisfaction rating

7. Methods
• Data collection
• Pre-operative scores
• Bluespier database
• Post-operative scores
• Online questionnaire
• Telephone interview
• Follow-up period
• Mean: 21 months
• Standard Deviation: 10.7

8. Results – Demographics
• Age
• Mean: 33.6 years
• Standard Deviation:
12.2
• Gender
• Male: 16 (87%)
• Female: 2 (13%)
• Sport Level
• Professional: 9
• Semi-Pro: 1
• Leisure: 6

9. Results – Shoulder Scores
Shoulder
Score
Pre-Op
Mean
Post-Op
Mean
Differenc
e in
Means
Standard
Deviation
P value
(Paired t-
Constant 52.3 87.3 +35.0 20.94 <0.001
QuickDA
SH
30.5 6.8 -23.7 17.55 0.012

10. Results – Patient Satisfaction
Mean Rating
Standard
Deviation
Satisfaction 88% 25.5

11. Discussion
• Limitations
• Retrospective study
• Limited number of patients

12. Conclusions
• Surgical Outcomes
• Effective
• Improvement in post-operative scores significant
• After 21 months
• High satisfaction ratings

13. Acknowledgements
• Tanya MacKenzie
• http://www.shoulderdoc.co.uk/article.asp?article=1280

14. Questions