AOFAS and Karlsson-Peterson scales in evaluating patients treated with modified Broström-Gould and suture tape augmentation for ankle instability: a performance analysis

Abstract

Objective: The objective of this study was to evaluate the performance of the American Orthopedic Foot and Ankle Society (AOFAS) and Karlsson-Peterson scales in patients with lateral ankle instability treated with modified Bröstrom-Gould (MBG) plasty and suture tape augmentation. Methods: This retrospective, bicentric, cohort study involved consecutive patients with lateral ankle instability treated with MBG plasty and suture tape augmentation. The Visual Analog Scale (VAS), AOFAS scale, and Karlsson-Peterson scale were used in pre-/postoperative assessments. Results: Fifty-five patients who underwent MBG plasty and suture tape augmentation were included. Mean preoperative and postoperative VAS scores were 7.1 ± 1.4 and 1.3 ± 1.6 (p<0.001), respectively. Mean AOFAS scores were 61.3 ± 21.1 and 95.4 ± 8.4, respectively (p<0.001). Mean Karlsson-Peterson scale scores were 46.8 ± v14.3 and 95.2 ± v7.9 (p<0.001), respectively. Conclusions: The Karlsson-Peterson scale showed a better performance than the AOFAS scale in the clinical and functional evaluation of patients with ankle instability treated with MBG plasty and suture tape augmentation. Level of Evidence III; Therapeutic Studies; Comparative Retrospective Study.

The Outcome of Modified Mini-Open Brostrom Gould Ankle Surgery on Chronic Ankle Instability

“…On analysis, the average pre-operative pain VAS score (Table 1 ) was 6.57 and reduced to an average of 1.33 2.6 years post-operation. The pre-operative VAS score was reported in five studies (Figure 4 ), with 164 patients treated with open repair [ 9 - 13 ]. The average pre-operative VAS score was 5.89.…”

“…The average Karlsson score was 47.7. The post-operative Karlsson score was reported in five studies (Figure 5 ), with 243 patients averaging 88.1 [ 9 - 11 , 14 - 15 ]. This corresponds closely to the results collected in our study.…”

“…We found that the MMBG decreased pain level post-operatively, based on the VAS pain score, and in multiple components of other scoring systems, such as the pain components of the Karlsson score and the FAOS. The VAS score was reported in five other studies, with 164 patients treated with open repair [ 9 - 13 ]. The average VAS scores in these studies decreased from 5.89 to 1.53.…”

“…In recent years, numerous clinical studies have been done to measure the outcomes of conventional open MBG. There have also been increasing numbers of studies to compare the outcomes of open versus arthroscopic MBG [8][9][10][11][12][13][14][15][16][17]. However, few studies have discussed the outcomes of a mini-open approach, which may benefit patients who may not be suitable for arthroscopic surgery.…”