Does Anterior Laxity of the Uninjured Knee Influence Clinical Outcomes of ACL Reconstruction?

Kim, Sung-Jae; Lee, Su-Keon; Kim, Sunghwan; Kim, Seong Hun; Kim, Jongsoon; Jung, Min

doi:10.2106/jbjs.m.00521

Cited by 18 publications

(10 citation statements)

References 21 publications

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“…Furthermore, they have greater increase in anterior and rotational knee laxity with exercise and fatigue [47•, 48]. Even though the influence of physiological knee laxity on knee function has not been clearly established, several studies suggest it could influence the outcome of ACL reconstructions [49][50][51]. After ACL reconstruction with a bonepatellar-tendon-bone graft (BPTB), patients with an increased physiological laxity have lower Lysholm [50,51] and IKDC subjective [49][50][51] scores.…”

Section: Physiological Laxity Knee Function and Injuriesmentioning

confidence: 99%

Objective measurements of static anterior and rotational knee laxity

Mouton

Theisen

Seil

2016

Curr Rev Musculoskelet Med

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Several devices allow to measure anterior and rotational static knee laxity. To date, the use of rotational laxity measurements in the daily clinical practice however remains to be improved. These measurements may be systematically integrated to the follow-up of knee injuries. Physiologic laxity measurements may particularly be of interest for the identification of risk factors in athletes. Furthermore, knee laxity measurements help to improve the diagnosis of knee soft tissue injuries and to follow up reconstructions. Further prospective follow-ups of knee laxity in the injured/reconstructed knees are however required to conclude on the best treatment strategy for knee soft tissue injuries.

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Section: Physiological Laxity Knee Function and Injuriesmentioning

confidence: 99%

Objective measurements of static anterior and rotational knee laxity

Mouton

Theisen

Seil

2016

Curr Rev Musculoskelet Med

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show abstract

“…The group with anterior laxity of >7.5 mm in the uninjured knee had poorer functional scores and higher sideto-side laxity measurements compared with patients with £7.5 mm of laxity 26 .…”

Section: Risk Factors For Acl Outcomesmentioning

confidence: 80%

What’s New in Sports Medicine

Tanksley

Werner

et al. 2015

The Journal of Bone and Joint Surgery

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“…Earlier investigators have reported excessive joint laxity as a negative prognostic factor in ligament reconstruction surgery in the knee joint. 10,11,15 Likewise, excessive joint laxity was related to a high recurrence rate after arthroscopic Bankart repair in the setting of moderate to severe glenoid defects. 12 We supposed that excessive joint laxity would negatively affect shoulder stability.…”

Section: Discussionmentioning

confidence: 99%

Association Between Excessive Joint Laxity and a Wider Hill-Sachs Lesion in Anterior Shoulder Instability

et al. 2021

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Background: Excessive general joint laxity, a negative prognostic factor in joint instability, has not been studied to determine its relationship with bipolar bone loss in anterior shoulder instability. Purpose/Hypothesis: This study aimed to investigate the characteristics of bipolar bone defects in the presence of excessive joint laxity and the clinical outcomes based on the on-track/off-track theory. We hypothesized that (1) patients with excessive joint laxity might have less significant bipolar bone defects compared with those without excessive joint laxity and (2) no significant difference would be found in the clinical outcomes, including recurrence rate. Study Design: Cohort study; Level of evidence, 3. Methods: This study included 81 patients who had undergone arthroscopic Bankart repair, with (group L; n = 33) or without (group N; n = 48) excessive joint laxity. The presence of excessive joint laxity was defined as a score of ≥4 using Beighton and Horan criteria preoperatively. Bipolar bone lesions were assessed using preoperative 3-dimensional computed tomography. Additional remplissage was performed for cases with off-track or positive engagement test in borderline on-track lesions. The functional outcomes at the 2-year follow-up were assessed using the recurrence rate, Subjective Shoulder Value, Rowe score, University of California Los Angeles shoulder score, active range of motion, and the sports/recreation activity level. Results: No significant difference was found in the glenoid bone defect between groups (14.1%, group L; 14.4%, group N). Off-track lesions were identified in 39.4% (13/33) of group L and 14.6% (7/48) of group N ( P = .011). The mean Hill-Sachs interval to glenoid track ratio was 83.1% in group L and 75.2% in group N ( P = .021). Additional remplissage procedures were more frequently performed in group L (48.5%; 16/33) than in group N (16.7%; 8/48) ( P = .002). However, no significant difference was observed in the shoulder functional scores and recurrence rates between the groups. Conclusion: Patients with anterior shoulder instability and excessive joint laxity had significantly wider Hill-Sachs lesions and more off-track lesions than did those with normal joint laxity despite the lack of a significant difference in the glenoid bone defect. However, these differences in the Hill-Sachs lesion were not related to differences in the functional outcomes between the groups.

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Does Anterior Laxity of the Uninjured Knee Influence Clinical Outcomes of ACL Reconstruction?

Abstract: Greater anterior laxity of the uninjured knee was associated with poorer stability and functional outcomes after ACL reconstruction. Excessive anterior laxity of the uninjured knee thus appears to represent a risk factor for inferior outcomes.

Cited by 18 publications

References 21 publications

Objective measurements of static anterior and rotational knee laxity

Objective measurements of static anterior and rotational knee laxity

What’s New in Sports Medicine

Association Between Excessive Joint Laxity and a Wider Hill-Sachs Lesion in Anterior Shoulder Instability

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