The phrase "a flexion of" is correct and usable in written English.
It can be used in contexts related to grammar, linguistics, or anatomy, where it refers to a bending or change in form.
Example: "In linguistics, a flexion of the verb indicates a change in tense or mood."
Alternatives: "a variation of" or "a modification of".
We obtained a correct physiologic alignment along the frontal mechanical axis plus/minus approximately 3°, whereas in the lateral view, the femoral component had a flexion of approximately 3° to avoid femoral notching (potential cause of fractures).
Scuderi [8] noted that a flexion of 65° is required to walk on a flat ground, of 70° to arise from a chair and of 90° to descend stairs.
The range of motion was nearly full: flexion 130°, extension 10°, pronation 75° and supination 80°, compared with a flexion of 140°, extension of 0°, pronation of 80° and supination of 80° of the contralateral elbow.
In patients with partial restriction of motion, the preoperative range of motion was 23° (range 11° 52°), with a flexion of 72° (range 65° 88°) and flexion contracture of 49° (range 26° 68°).
The average preoperative arc of motion was 52° (range 11° 57°) in patients with partial restriction of motion, with a flexion of 93° (range 74° 108°) and an extension of 40° (range 25° 72°).
If a flexion of more than 90° after TKA was not achieved, they were entitled as being stiff.
In a SOFCOT series, there was a flexion improvement of 35° with an average postoperative flexion of 83°; moreover, an improvement in flexion contracture and pain score was noted [41].
Activities of daily living were only marginally restricted by a flexion contracture of both elbow joints and an extension contracture of both second metacarpophalangeal joints (MCP II).
One study defined stiffness as a knee having a flexion contracture of ≥15 degrees and/or < 75 degrees of flexion (Kim et al. 2004).
A flexion contracture of the knee combined with an equinus contracture of the ankle occurred in one patient (who had an associated substance-induced psychotic disorder).
However, all these knees could be passively extended with the exception of case 2 (left side) which had a flexion deformity of 15°.
