Department of Orthopedics, Academic Medical Center, Orthopaedic Research Center Amsterdam, Room G4-242, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands,
Knee Surg Sports Traumatol Arthrosc. 2013 Nov;21(11):2647-53. doi: 10.1007/s00167-013-2635-4. Epub 2013 Sep 12.
To translate and validate the Kujala Anterior Knee Pain Scale (AKPS) in patients who have undergone total knee arthroplasty (TKA) or unicompartmental knee arthroplasty (UKA) and evaluate the internal consistency, construct validity and ceiling or floor effect.
After standard forward and backward translation was performed, 302 patients who have received a TKA or UKA filled out the AKPS together with Hospital for Special Surgery (HSS) patella score, visual analogue score (VAS) for pain, the Oxford 12-item questionnaire and the SF-36 at follow-up. The internal consistency was tested using Cronbach's α coefficient. The construct validity was assessed using Spearman's rank correlation (R) to test for correlations between the AKPS and VAS HSS, HSS patella score, VAS month, Oxford 12-item questionnaire and SF-36 subscales. Ceiling or floor effects are given in percentage of patients giving a maximum or minimum score.
The internal reliability of the AKPS is acceptable with a Cronbach's α of 0.81 in patients after TKA or UKA. A high correlation was found between the AKPS and the Oxford 12-item questionnaire (R = 0.81). Moderate correlations were found with the VAS month (R = 0.63), HSS patella score (R = 0.51) and SF-36 subscales physical functioning (R = 0.59), role-physical (R = 0.59), bodily pain (R = 0.57). Other correlations were poor, therefore indicating a good convergent and divergent validity. Ceiling effects were observed for the HSS patella score (31 %), VAS HSS (51 %), VAS pain (19 %), SF36-RP (46 %), SF36-RE (80 %) and SF36-BP (24 %). No ceiling or floor effect was found for the AKPS, Oxford 12-item and the other SF36 domains.
The AKPS appears to be reliable and valid in patients after knee arthroplasty, with no ceiling and floor effects, and can be used to assess anterior knee pain in patient who underwent joint replacement surgery.
将全膝关节置换术（TKA）或单髁膝关节置换术（UKA）后的患者的 Kujala 膝关节前痛量表（AKPS）进行翻译和验证，并评估其内部一致性、结构效度以及天花板或地板效应。
经过标准的正向和逆向翻译后，302 例接受 TKA 或 UKA 的患者在随访时填写 AKPS 以及美国特种外科医院（HSS）髌骨评分、疼痛视觉模拟评分（VAS）、牛津 12 项问卷和 SF-36。采用 Cronbach's α 系数检验内部一致性。采用 Spearman 秩相关（R）评估结构效度，以检验 AKPS 与 VAS HSS、HSS 髌骨评分、VAS 评分、牛津 12 项问卷和 SF-36 子量表之间的相关性。以最大或最小评分的患者百分比表示天花板或地板效应。
TKA 或 UKA 后患者的 AKPS 内部可靠性可接受，Cronbach's α 为 0.81。AKPS 与牛津 12 项问卷高度相关（R=0.81）。与 VAS 评分月（R=0.63）、HSS 髌骨评分（R=0.51）和 SF-36 子量表躯体功能（R=0.59）、躯体角色（R=0.59）、躯体疼痛（R=0.57）中度相关。其他相关性较差，表明具有良好的聚合和发散效度。HSS 髌骨评分（31%）、VAS HSS（51%）、VAS 疼痛（19%）、SF36-RP（46%）、SF36-RE（80%）和 SF36-BP（24%）存在天花板效应。AKPS、牛津 12 项和其他 SF36 域均无天花板或地板效应。
AKPS 似乎在膝关节置换术后患者中具有可靠性和有效性，无天花板和地板效应，可用于评估接受关节置换手术患者的膝关节前痛。
