Outcomes of Anatomical repair and ligament bracing of Schenc
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The aim of this study was to analyze the outcomes of anatomical repair and ligament bracing for Schenck III and IV knee dislocation (KD).

The results of 27 patients (15 and 12 cases of Schenck III and IV KD, respectively) after a mean follow-up of 18.1±12.1 months (range 6–45 months) were retrospectively reviewed. 22 patients suffered high-kinetic-energy accidents, whereas 5 patients suffered ultralow-velocity (ULV) trauma due to obesity. The outcome measures were the Lysholm score, Hospital for Special Surgery (HSS) knee score, Knee Society Score (KSS), Knee Injury and Osteoarthritis Outcome Score (KOOS) and Short Form 36 (SF-36) score. A kinematic 3D gait analysis with five walking trials was performed to compare the patients and healthy controls.

Results:
--The mean KSS, HSS score, Lysholm score, and KOOS were 77.4±14.4, 84.6±11.2, 81.5±10.4, and 67.3±16.8, respectively.

--No intra- or postoperative complications occurred. The mean range of motion deficiency compared to the healthy side was 24.4±18.5°.

--10 patients had first-degree residual laxity of the anterior cruciate ligament; 12 and 2 patients had first- and second-degree residual laxity of the collateral ligament, respectively.

--5 patients underwent additional arthroscopic arthrolysis due to arthrofibrosis at an average of 6.2±1.9 months (range 4–9 months) after the initial surgery.

--The 3D gait analysis showed no major differences in joint stability or movement between the patients and healthy controls.

--Only the ULV trauma patients had significantly lower outcome scores and showed larger kinematic deviations in joint movement during the gait analysis.

Conclusively, anatomical repair with ligament bracing is a suitable surgical procedure in the treatment of KD and provides evidence in clinical practice with the benefit of early, definitive repair and preservation of the native ligaments. Patients reach acceptable subjective and objective functional outcomes, including mainly normalized gait patterns during short-term follow-up, with only minor changes in kinematics and spatial–temporal characteristics. Obese patients who suffered ULV trauma showed significantly inferior outcomes with larger deviations in joint kinematics.

Source: https://link.springer.com/article/10.1007/s00167-021-06501-2
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