Limitations of the Knee Society Score in Evaluating Outcomes Following Revision Total Knee Arthroplasty

Ghanem, Elie; Pawasarat, Ian; Lindsay, Adam; May, Lauren R.; Azzam, Khalid; Joshi, Anand; Parvızı, Javad

doi:10.2106/jbjs.i.00252

Cited by 56 publications

(43 citation statements)

References 28 publications

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“…In the series by Buechel et al [2] [10,15,24]. The KS Score may have some limitations in evaluating knee function after revision TKA [6]; however, there is no universally accepted rating system. Our findings do not support the notion that one-stage exchange has the potential to allow better functional knee outcome than two-stage exchange, especially when the latter procedure is associated with articulating spacers.…”

Section: Discussionmentioning

confidence: 99%

High Infection Control Rate and Function After Routine One-stage Exchange for Chronically Infected TKA

Jenny

Bruno

Gaudias

et al. 2013

Clinical Orthopaedics &Amp; Related Research

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Section: Discussionmentioning

confidence: 99%

High Infection Control Rate and Function After Routine One-stage Exchange for Chronically Infected TKA

Jenny

Bruno

Gaudias

et al. 2013

Clinical Orthopaedics &Amp; Related Research

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“…One of the major benefits of the use of a generic health questionnaire is that the patient's psychological status can be assessed [14,16].…”

Section: Outcome Measuresmentioning

confidence: 99%

Functional and psychological outcomes of delayed lower limb amputation following failed lower limb reconstruction

Merwe

Birkholtz

Tetsworth

et al. 2016

Injury

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Purpose:The purpose of this study was to evaluate the functional and psychological outcomes of patients who underwent delayed lower limb amputation following failed limb salvage surgery. Methods:This retrospective, descriptive study evaluated functional outcomes using the Sickness Impact Profile (SIP) and Short Form-36 (SF-36) in 12 patients. Inclusion criteria included patients who underwent limb reconstruction and delayed amputation between between July 2006 and December 2014, with an age range between 18-80 years of age, the ability to ambulate independently, a time interval between the last salvage procedure and amputation greater than six months, and a minimum follow-up of 24 months. Patients were contacted via telephone by the principal investigator and both the Sickness Impact Profile (SIP) and Short Form-36 (SF-36) were completed. Descriptive analysis (means and standard deviation) was used to determine outcomes for both SIP and SF-36 health profiles. Results:Ten patients who had amputations following failed reconstruction (2006-2014) with a mean age of 53+10 years were interviewed. Six patients had a SIP < 5, three patients scored between five and 10 points and one scored >10 points. The main deficit on the SF-36 was in the physical component. The SF-36 scores demonstrated a mean score of 40.8+11.5 for the physical component, and 57.4+7.9 for the mental component. Three patients returned to work after amputation and continued performing their pre-injury duties as farmers.Three other patients returned to work, but were allocated to administrative duties. Two patients were pensioners at the time of their injuries, and the only female patient was a housewife. One patient went into early retirement. Conclusion:The results of this study strongly suggest that delayed amputation following failed limb salvage surgery can still result in good and satisfactory outcomes in the majority of patients and achieves results similar to early amputation and limb reconstruction techniques.

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“…The Knee Society Clinical Rating System has been the most popular method of tracking and reporting outcomes after total and partial knee arthroplasty worldwide [24]. However, it became clear that certain ambiguities and deficiencies within the original Knee Society Clinical Rating System challenged its use and validity [11]. In the last decades, the number of young and active patients undergoing TKA has rapidly increased.…”

Section: Introductionmentioning

confidence: 99%

Straeten

Witvrouw

Willems

et al. 2013

Clinical Orthopaedics &Amp; Related Research

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Background A new version of The Knee Society Knee Scoring System Ó (KSS) has recently been developed. Before this scale can be used in non-English-speaking populations, it has to be translated and validated for a particular population. Questions/purposes We evaluated the construct and content validity, the test-retest reliability, and the internal consistency of the Dutch version of the New Knee Society KSS. Methods A Dutch translation was performed using a forward-backward translation protocol. We tested the construct validity of the Dutch New KSS by comparing it with the Dutch versions of the WOMAC, Knee Injury and Osteoarthritis Outcome Score (KOOS), and SF-12 scores in 137 patients undergoing total knee arthroplasty (TKA). Content validity was assessed by comparing pre-and postoperative scores and by checking floor and ceiling effects. To evaluate test-retest reliability and consistency, 47 patients completed the questionnaire a second time with a mean of 8 days interval (range, 2-20 days) between tests. Results Construct validity was demonstrated because the Dutch New KSS correlated well with the Dutch WOMAC (r = À0.751; p \ 0.001), Dutch KOOS (r = À0.723; p \ 0.001), and Dutch SF-12 (r = 0.569; p \ 0.001). There was a significant difference between pre-and postoperative scores (p \ 0.001) in line with the other scores. Test-retest reliability proved excellent with an intraclass correlation coefficient between 0.73 and 0.92 depending on the domain tested. Consistency as indicated by Cronbach's alpha ranging from 0.84 to 0.96 was good to excellent. Conclusions As demonstrated by the validation procedure, the Dutch New KSS is an excellent instrument to evaluate TKA outcome in Dutch-speaking patients.

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Limitations of the Knee Society Score in Evaluating Outcomes Following Revision Total Knee Arthroplasty

Cited by 56 publications

References 28 publications

High Infection Control Rate and Function After Routine One-stage Exchange for Chronically Infected TKA

High Infection Control Rate and Function After Routine One-stage Exchange for Chronically Infected TKA

Functional and psychological outcomes of delayed lower limb amputation following failed lower limb reconstruction

Translation and Validation of the Dutch New Knee Society Scoring System©

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