संहनन Bone Structure
– वज्रवृषभ नाराच Interlocking of bones on both sides and strengthening with plates etc
– व्रज नाराच Adamantine ligature
– नाराच Interlocking on both side
– अर्द्ध नाराच Interlocking on one side
– कीलक Weak bones, just presses and nailed
– असंप्राप्ता सृपाटिका Ligatures structure