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. 2023 May;57(3):109-115.
doi: 10.5152/j.aott.2023.21365.

The effects of remnant-preserving anterior cruciate ligament reconstruction on proprioception: A prospective comparative study

Volkan Igdir  1 , Batuhan Gencer  2 , Ozgur Dogan  2 , Emrah Caliskan  3 , Ali Orhan  4 , Sibel Demir Ozbudak  5
Affiliations

The effects of remnant-preserving anterior cruciate ligament reconstruction on proprioception: A prospective comparative study

Volkan Igdir et al. Acta Orthop Traumatol Turc. 2023 May.

Abstract

Objective: The aim of this study was to investigate the effects of anterior cruciate ligament reconstruction performed by preserving remnant tissue on proprioception and to assess the effects it has on isokinetic quadriceps and hamstring muscle strength, as well as on range of motion and functional scores.

Methods: A prospective study was conducted with 44 patients who underwent either anterior cruciate ligament reconstruction with remnant preservation (study group, n=22) or with remnant excision (control group, n=22) with the use of a 4-strand hamstring allograft. The mean follow-up time was 20.2 ± 1.4 months after surgery. Using an isokinetic dynamometer, proprioception was evaluated with passive joint position perception at 150, 450, and 600, and quadriceps femoris, and hamstring muscle strength were evaluated at speeds of 900, 1800, and 2400 per second. Range of motion was measured using a goniometer. Functional outcomes were assessed using International Knee Documentation Committee subjective knee evaluation score and Lysholm knee scoring questionnaires.

Results: It was only at 15° of knee flexion that there was a statistically significant difference in proprioception; the median of the difference in the amount of deviation from the target angle between the healthy knee and the operated side was 1.7 (range, 0.7-20.7) in those with remnant preserved, and 2.7 (range, 1-26) in those with remnant excised (P=.016). At 2400/s speed, the mean quadriceps femoris strength was 77.2 ± 24.3 Nm in those with remnant preserved and 67.6 ± 24.2 Nm in those with remnant excised. (P=.048) There was no difference between the 2 groups in terms of range of motion, International Knee Documentation Committee, and Lysholm knee scoring. (P > .05) Conclusion: The present study has demonstrated that better proprioception and higher quadriceps femoris muscle strength can be obtained by remnant-preserving anatomical single-bundle anterior cruciate ligament reconstruction using a hamstring autograft.

Level of evidence: Level II, Therapeutic study.

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Figures

Figure 1.
Figure 1.
CONSORT flowchart of this trial.
Figure 2.
Figure 2.
Intraoperative view of remnant-excised anterior cruciate ligament reconstruction. Red arrow: Hamstring autograft.
Figure 3.
Figure 3.
Intraoperative view of remnant-preserving anterior cruciate ligament reconstruction. Red arrow: Hamstring autograft, Blue arrow: Tibial remnant tissue.
Figure 4.
Figure 4.
Patient positioning in the isokinetic dynamometer during the proprioception and muscle strength measurements.
See this image and copyright information in PMC

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