( ( Rotation ( of ( the ( bone fragment ) ) ) ) ( ( occurs ( as ( ( ( a result ) ( of ( ( the ( torsional forces ) ) ( applied ( through ( ( the thumb ) ( on rotation ) ) ) ) ) ) ) ( oaf ( the body ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Rotation)) (PP (IN of) (NP (DT the) (NN bone) (NN fragment)))) (VP (VBZ occurs) (SBAR (IN as) (S (NP (NP (DT a) (NN result)) (PP (IN of) (NP (NP (DT the) (JJ torsional) (NNS forces)) (VP (VBN applied) (PP (IN through) (NP (NP (DT the) (NN thumb)) (PP (IN on) (NP (NN rotation))))))))) (VP (VBP oaf) (NP (DT the) (NN body)))))) (. .)))
Rotation of the bone fragment occurs as a result of the torsional forces applied through the thumb on rotation oaf the body.
(ROOT (S (NP (JJ Medial) (NN rotation)) (VP (VBZ is) (NP (NP (DT the) (NN term)) (PP (IN for) (NP (NP (NN rotation)) (PP (IN of) (NP (NP (DT a) (NN bone)) (PP (IN toward) (NP (NP (DT the) (NN midline)) (PP (IN of) (NP (DT the) (NN body))))))))))) (. .)))