Related Experiment Video
Updated: May 14, 2026

Novel Triple-Loop Technique for Suturing TFCC Injuries without Transosseous Tunnel
Published on: May 23, 2025
Avulsion fracture and complete rupture of the thumb radial collateral ligament
J Köttstorfer1, M Hofbauer, I Krusche-Mandl
1Department of Trauma Surgery, General Hospital, Medical University of Vienna, Waehringer Guertel 18-20, Vienna, Austria. juliakoettstorfer@yahoo.de
Purpose:
Acute grade III tears of the radial collateral ligament (RCL) of the thumb as well as certain bony avulsion fractures receive early surgical repair at our institution. The aim of this study was to evaluate if patients would benefit from this treatment algorithm at long-term.
Methods:
47 patients with RCL bony avulsion fracture or grade III RCL tear were evaluated at a median follow-up of 4.5 years (range 1-17.3 years). Grade III RCL tears were treated operatively when presenting >30° angulation in stress X-ray together with palmar subluxation of ≥3 mm. Further, avulsed bony fragments with diastasis >2 mm or fragment rotation >30°-45° in conventional X-ray underwent surgery. 6 patients with grade III RCL tear as well as 9 patients with bony avulsion underwent surgical repair.
Results:
At follow-up, metacarpophalangeal joint stability and pain free ROM did not differ significantly between the groups. Subjective satisfaction based on the Catalano grading system revealed excellent results in operatively and conservatively treated patients.
Conclusions:
This retrospective analysis indicates that early surgical repair in severe RCL injuries is associated with unrestricted ROM, persistent joint stability, and subjective patient satisfaction. This data suggest that surgical treatment in certain RCL injuries might be a feasible therapeutic option in order to avoid chronic instability.
Related Concept Videos
Bones of the Upper Limb: Radius
The radius has a nail-shaped head, and a short...
Muscles of the Forearm that Move the Hand and Fingers
Anterior Compartment
The anterior compartment muscles originate from the humerus. They primarily function as flexors and are also known as flexor muscles. They typically insert on the carpals, metacarpals, and phalanges. The superficial layer includes the flexor carpi radialis,...
Bones of the Upper Limb: Ulna
Arteries of the Upper Limbs
Flail Chest-I
Flail chest is a severe and potentially life-threatening condition characterized by the fracture of three or more adjacent ribs in multiple places. It is most commonly caused by direct impacts and trauma, such as motor vehicle accidents or injuries from a steering wheel impact. It can also occur due to falls in elderly individuals with osteoporosis, or assaults involving sharp objects.
Pathophysiology
The pathophysiology of flail chest is complex, involving fractures of...
Bones of the Upper Limb: Humerus
