Arthroscopic Versus Open Distal Clavicle Resection: A Biomechanical Analysis on a Cadaveric Model

• Published in: Arthroscopy Vol. 15; no. 3; pp. 237 - 240
• Main Authors: Matthews, Leslie S., Parks, Brent G., Pavlovich, Lucas J., Giudice, Michael A.
• Format: Journal Article
• Language: English
• Published: Philadelphia, PA Elsevier Inc 01-04-1999; Elsevier
• Subjects: Acromioclavicular joint; Acromioclavicular Joint - physiology; Acromioclavicular Joint - surgery; Arthroscopy; Biological and medical sciences; Biomechanical Phenomena; Biomechanical test; Cadaver; Cadaver model; Clavicle - surgery; Distal clavicle resection; Endoscopy - methods; Humans; Medical sciences; Models, Anatomic; Orthopedic Procedures - methods; Shoulder; Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases; Technology. Biomaterials. Equipments; Weight-Bearing - physiology; Cadaver model; Biomechanical test; Distal clavicle resection; Acromioclavicular joint; Shoulder; Human; Postoperative; Endoscopic surgery; Exploration; Surgical resection; Joint; In vitro; Biomechanics; Acromioclavicular; Arthroscopy; Orthopedic surgery; Clavicle; Technique; Cadaver; Comparative study
• ISSN: 0749-8063; 1526-3231
• DOI: 10.1016/S0749-8063(99)70027-7

A fresh cadaver shoulder model was used to evaluate the difference in joint laxity between arthroscopic and open distal clavicle resection procedures. Twelve shoulders were mounted in a load frame that allowed compressive loading of the distal clavicle into the acromion. Specimens were loaded to 100 N (20 N/sec) while load and deformation data were recorded for three conditions: (1) intact, (2) 5-mm closed resection, and (3) 10-mm open resection. The displacement at the 100-N load and the stiffness of the load/displacement curves were compared for the intact, arthroscopic, and open procedures. Significant differences (ANOVA,
P ≤ .05) in displacement and stiffness were observed between the intact joint and both surgically resected joints. No significant differences were observed between the two surgically resected joints. The amount of bone removed arthroscopically was sufficient to prevent further bony contact in the axially loaded acromioclavicular joint.
Arthroscopy: The Journal of Arthroscopic and Related Surgery, Vol 15, No 3 (April), 1999: pp 237–240