Research Article
Pes Anserinus Structural Framework and Constituting Tendons Are Grossly Aberrant in Nigerian Population
Table 1
Classification (types) of pes anserinus.
| | Classification | Classes | Number
() | Total
(100%) |
| | Based on tendinous formation | Type I (SAT + GRT + STT) | 1 | 5% | | Type II (SAT + GRT + STT+ aSTT + SMT + TCL) | 1 | 5% | | Type III (SAT + GRT + STT + aSTT) | 13 | 65% | | Type IV (SAT + GRT + STT + aSTT + SMT) | 3 | 15% | | Type V (SAT + STT + GRT + aSAT + SMT) | 1 | 5% | | Type VI (SAT + GRT + STT + aGRT + aSTT) | 1 | 5% |
| | Based on union of the tendons | Nonconvergence (side-by-side termination) | 2 | 10% | | Early convergence (superior to medial tibial condyle) | 1 | 5% | | Late convergence (inferior to medial tibial condyle) | 17 | 85% |
| | Based on point of insertion | Superior anteromedial tibia | 0 | 0% | | Medial border of tibia | 0 | 0% | | Superior anteromedial bone + medial border of tibia | 18 | 90% | | Superior anteromedial bone + medial border of tibia + fascia cruris | 2 | 10% |
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(i) SAT: sartorius muscle tendon.
(ii) GRT: gracilis muscle tendon.
(iii) STT: semitendinosus muscle tendon.
(iv) SMT: semimembranosus muscle tendon.
(v) aSAT: accessory sartorius muscle tendon.
(vi) aSTT: accessory semitendinosus muscle tendon.
(vii) aGRT: accessory gracilis muscle tendon.
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