Role of the Juncturae Tendinum in Preventing Radial Subluxation of the Extensor Communis Tendons after Ulnar Sagittal Band Rupture: A Cadaveric Study

Table 2

Tendon subluxations after complete ulnar sagittal band release and after subsequent division of the juncturae tendinum during fist formation and for individual finger flexion. (Note the figures in brackets are the combination of subluxations and dislocations occurring.)

		Index (𝑛=10)	Long (𝑛=10)	Ring (𝑛=10)	Little (𝑛=10)	All (𝑛=40)
Fist formation	Ulnar sagittal band rupture	0 (0)	0 (0)	1 (1)	0 (0)	1 (1)
	+ additional juncturae tendini division	1 (1)	1 (1)	3 (4)	0 (0)	5 (6)
Individual finger flexion	Ulnar sagittal band rupture	0 (0)	0 (0)	1 (1)	0 (0)	1 (1)
	+ additional juncturae tendini division	1 (1)	1 (1)	2 (4)	2 (2)	6 (8)