Objective To observe and measure the stop-point morphologic features of the peroneus tertius (PT), and provide anatomic basis for ligament reconstruction. Methods The distance from the tendon junction to the PT insertion point (D1), the distance from the PT insertion point to the extensor subservient distal band (D2) were measured. The width and thickness of the insertion point and the attachment of the muscle tendon were recorded in 34 cases of the isolated ankle joint specimens and were classified according to the type of insertion point. Results According to the PT insertion point pattern, the occurrence rate of the different patterns were 17.65 %, 35.29 %, 41.18 % and 5.88 %, respectively. The distance from the PT insertion point to the extensor subservient distal band was (58.12±6.82) mm. The distance from the tendon junction to the PT insertion point was (68.22±6.76) mm. The width of PT insertion point was (32.59±10.61) mm. The width of the PT tendon joint was (3.91±0.73) mm. The PT thickness was (1.12±0.18) mm. The D2 and the some PT patterns were not completely same, and there was statistical significance among them (H = 15.645, P<0.05). The D1 and the some PT patterns were not completely same, and there was statistical significance between them (H = 15.027, P<0.05). The width of PT terminal point in each pattern was not completely same, and there were statistical significance between them (H = 28.098, P<0.05). The width of the junction of the tendons in each PT pattern was not completely same, and there were statistical significance between them (H = 7.919, P<0.05). There was no statistical difference in the thickness of PT (H = 1.638, P>0.05). Conclusions The occurrence rate of type Ⅲ stop-point is the highest, and that of type IV stop-point is the lowest. There were no significant differences in length, width, body side and gender, but there were significant differences in the type of stop-point, which is helpful for clinical ligament reconstruction and other operations.
Key words
The peroneus tertius; Anatomy; Ankle joint /
Ligament reconstruction
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