Validity and Responsiveness of the Knee Society Clinical Rating System in Comparison with the SF-36 and WOMAC

Lingard, Elizabeth A.; Katz, Jeffrey N.; Wright, R. John; Wright, Elizabeth A.; Sledge, Clement B.

doi:10.2106/00004623-200112000-00014

Cited by 292 publications

(212 citation statements)

References 17 publications

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“…Outcomes were measured using the Medical Outcomes Study SF-36 [24,25,33], the WOMAC [2,3,34], the functional and clinical components of the Knee Society Severity Index (KSS) [14], and the Lower Extremity Activity Scale (LEAS) [30]. The WOMAC and the SF-36 provide good estimates of patient outcomes following joint replacement [11,22,23], and the LEAS was developed specifically for use in the rev-TKA population [30]. All measures, with the exception of the KSS, were completed by the patient at each visit; the KSS was completed by the physician during the patient visit.…”

Section: Methodsmentioning

confidence: 99%

Does Concomitant Low Back Pain Affect Revision Total Knee Arthroplasty Outcomes?

Novicoff

Rion

Mihalko

et al. 2009

Clinical Orthopaedics &Amp; Related Research

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The number of revision total knee arthroplasties (rev-TKA) is increasing every year. These cases are technically difficult and add considerable burden on the healthcare system. Many patients have concomitant low back pain that may interfere with functional outcome. We asked whether having low back pain at baseline would influence amount and rate of improvement on standardized outcomes measures after rev-TKA. We retrospectively reviewed 308 patients from prospectively collected data in a multicenter study. A minimum 24-month followup was available for 221 patients (71.8%). Patients with low back pain at baseline had worse scores on most instruments than their counterparts at baseline, 12 months postsurgery, and 24 months postsurgery. The data suggest concomitant back pain in patients undergoing rev-TKA affects their outcomes as measured by standardized instruments. Orthopaedic surgeons should counsel their patients with back pain regarding the possibility of slower or less complete recovery.

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Section: Methodsmentioning

confidence: 99%

Does Concomitant Low Back Pain Affect Revision Total Knee Arthroplasty Outcomes?

Novicoff

Rion

Mihalko

et al. 2009

Clinical Orthopaedics &Amp; Related Research

View full text Add to dashboard Cite

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“…While patient self-reported measures of outcome such as the SF-36, the WOMAC, and the four-question 4-point Likert scale for patient satisfaction have previously been validated, the Knee Society clinical rating system has yet to be validated, particularly for patients after revision total knee arthroplasty 4,[14][15][16][17]19,20,22,26,33 . Lingard et al claimed the face validity of the Knee Society rating system is questionable, as patients were not included in the item-selection process and the number of selected items is limited 22 . In the same study, it was also demonstrated that the physical examination score is subject to misrepresentative scores, as poor correlation among the items of the clinical score on the Knee Society rating system make it possible for two very different patients to receive the same score.…”

Section: Discussionmentioning

confidence: 99%

“…As there is currently no validated means of assessing the clinical measurements (range of motion, alignment, and stability), it was impossible to test for convergent construct validity for the above parameters 22 . The preoperative Knee Society pain score showed a low degree of correlation with the WOMAC pain score but a moderate level of association with the SF-36 pain score.…”

Section: Validitymentioning

confidence: 99%

“…Although Lingard et al showed the Knee Society rating system to have adequate convergent construct validity, those authors also stated that the WOMAC and SF-36 are preferable for outcome assessment of total knee arthroplasty as these tools are able to be completed by the patient alone 22 . The aim of our study was to determine the correlation between commonly used outcome questionnaires, specifically those that are used at our institution following revision total knee arthroplasty.…”

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confidence: 99%

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

Ghanem

Pawasarat

Lindsay

et al. 2010

The Journal of Bone and Joint Surgery-American Volume

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“…However, application of its features in Japanese TKA patients has been unclear. Whereas objective scales such as the Knee Society Score (KSS) and Japanese Orthopaedic Association (JOA) score have well-established validation and response rates [17,18], the Japanese KOOS has shown little correlation with objective scales for patient-based outcome scores in previous studies [19]. Furthermore, the normal variability and responses of KOOS in Japanese patients and the general population are unknown.…”

Section: Introductionmentioning

confidence: 99%

Relationship between patient-based outcome score and conventional objective outcome scales in post-operative total knee arthroplasty patients

Sasaki

Tsuda

Yamamoto

et al. 2013

International Orthopaedics (SICOT)

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Purpose Evaluations for knee osteoarthritis (OA) or postoperative total knee arthroplasty (TKA) have mainly been assessed by objective scales. Though the Knee injury and Osteoarthritis Outcome Score (KOOS) is attracting attention as a patient-based outcome score, the relationship with conventional objective scales after TKA remains controversial. The purpose of this study was to investigate the relationship between KOOS and conventional objective scales and evaluate the features of patient-based outcome scores. Methods Subjects were 130 post-operative patients involving 186 knees treated with TKA. Their mean age was 74.0± 8.0 years, and the follow-up period was 43 months. Japanese Orthopaedic Association (JOA) score, original Knee Society Score (KSS) and surgeon's satisfaction score were scored as conventional objective scales besides KOOS. Spearman's correlation coefficient was estimated between these scales. Comparisons between OA and rheumatoid arthritis (RA) as well as primary and revision surgery were performed by the Mann-Whitney U test. Results There were strong correlations between KOOS activities of daily living (ADL) and JOA score (r =0.806), KSS function score (r =0.803) and between KOOS pain and KSS knee score (r =0.689). However, there was a poor correlation between KOOS and surgeon's satisfaction score (r =0.188-0.321). TKA for RA showed poorer results only in KOOS pain (p =0.003), and revision surgery showed poorer results in KSS function, KOOS symptoms and KOOS quality of life (QOL). Conclusions This study suggested that conventional objective scales reflected mainly ADL disturbances in post-operative TKA patients. Furthermore, patient-based outcome scores made it possible to evaluate and detect a minute change of knee pain and QOL in TKA patients. The Japanese KOOS was a useful tool to evaluate conditions after TKA.

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Validity and Responsiveness of the Knee Society Clinical Rating System in Comparison with the SF-36 and WOMAC

Cited by 292 publications

References 17 publications

Does Concomitant Low Back Pain Affect Revision Total Knee Arthroplasty Outcomes?

Does Concomitant Low Back Pain Affect Revision Total Knee Arthroplasty Outcomes?

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

Relationship between patient-based outcome score and conventional objective outcome scales in post-operative total knee arthroplasty patients

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