Table 2 Karlstrom criteria for functional assessment after management of floating knee injuries
From: Impact of associated injuries in the Floating knee: A retrospective study
Criterion | Excellent | Good | Acceptable | Poor |
|---|---|---|---|---|
Symptoms from thigh or leg | None | Intermittent slight symptoms | More severe symptom impairing function | Considerable functional impairment: pain at rest |
Symptoms from knee or ankle joint | None | Same as above | Same as above | Same as above |
Walking ability | Unimpaired | Same as above | Walking distance restricted | Uses cane, crutch or other support |
Work and sports | Same as before | Given up sport; work same as before | Change to less strenuous work | Permanent disability |
Angulation, rotational deformity or both | 0 | < 10 degrees | 10 – 20 degrees | > 20 degrees |
Shortening | 0 | < 1 centimetre | 1 – 3 centimetres | > 3 centimetres |
Restricted joint mobility | 0 | < 10 degrees at ankle; < 20 degrees at hip, knee or both | 10 – 20 degrees at ankle; 20 – 40 degrees at hip, knee or both | > 20 degrees at ankle; > 40 degrees at hip, knee or both |