Patients or population: Adult patients with septic arthritis of the native knee joint Intervention: Arthroscopic washout (AW) Comparison: Open arthrotomy washout (OW) | ||||||
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Outcomes | Illustrative comparative risks | Relative effect | Number of participants (studies) | Certainty of the evidence (GRADE) | Comments | |
AW | OW | |||||
Lysholm Knee Scoring Scale [32] | The mean score was 93.8 points | The mean score was 6.6 points lower | - | 21 (1 RCT) | ⨁⨁⨁O1 | AW may result in a superior LKSS, however, difference non-significant |
Bussiere and Beaufils functional scale [33] | Function regarded as ‘good’ in 71.4% | Function regarded as ‘good’ in 21.1% | - | 40 (1 cohort study) | ⨁⨁OO2 | AW may result in a superior BBFs, however, difference non-significant |
Western Ontario and McMaster Universities Osteoarthritis Index [34] | The mean score was 17 points | The mean score was 0.9 points lower | - | 27 (1 cohort study) | ⨁⨁OO3 | AW may result in a superior WOMAC, however, difference non-significant |
Larson score [35] | The mean score was 74 points | The mean score was 13 points lower | - | 51 (1 cohort study) | ⨁OOO4 | AW may result in a superior Larson score, however, difference non-significant |
Range of movement | The mean ranged from 90 to 106° | The mean ranged from 70 to 95° | Mean difference 20.18° | 282 (4 cohort studies) | ⨁OOO5 | AW associated with superior post-operative ROM |
Need for further intervention | Rates of reoperation ranged from 4.0 to 50.4% in the observational studies, 0 in the RCT | Rates of reoperation ranged from 13.3 to 71.4% in the observational studies, 18.2% in the RCT | OR 0.64 | 384 (6 cohort studies, 1 RCT) | ⨁OOO6 | AW may be associated with lower re-operation requirement, however, difference non-significant |