The Lateral Meniscus Oblique Radial Tear (LMORT)

Daniel, Adam V.; Krych, Aaron J.; Smith, Patrick A.

doi:10.1007/s12178-023-09835-1

Cited by 2 publications

(3 citation statements)

References 32 publications

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“…2,35,36 These findings suggest that ACL graft integrity could be compromised from a failure to repair the meniscus. 8 Regarding healing of these tears, second-look arthroscopy in LMORT tears as described by Jeon et al 11 showed 80.3% complete healing status and 19.7% partial healing status in 61 repaired LMORTs. As a substantial portion of the tear crosses obliquely through the red-red and red-white zones of the meniscus and repair is occurring during the time of ACLR, there is ample vascularity and stimulus to encourage healing of these tears when combined with anatomic repair.…”

Section: Discussionmentioning

confidence: 96%

“…15 These are distinct from both LMORT types 1 and 2, which are classified as occurring 10 mm from the root, as well as pure root tears. 8,16 Appropriate treatment of LMORTs is to correct the altered knee kinematics that occur in the setting of these…”

mentioning

confidence: 99%

“…36 However, little evidence is available on the clinical outcomes for repair of these tear patterns. 8 The purpose of this study was to determine the minimum 2-year functional outcomes after LMORT repair at the time of ACLR compared to a matched cohort of patients who underwent isolated ACLR (iACLR). We hypothesized that patients who underwent LMORT repairs would have comparable failure and reoperation rates, as well as patient-reported outcomes (PROs), when compared with patients who underwent iACLR.…”

mentioning

confidence: 99%

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Outcomes of Lateral Meniscal Oblique Radial Tear Repair Compared With Intact Meniscus After ACL Reconstruction: A Cohort Study

Therrien,

Langhans,

Lamba

et al. 2023

Orthopaedic Journal of Sports Medicine

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Background: Recently, the posterior horn lateral meniscal oblique radial tear (LMORT) was identified in 12% of acute anterior cruciate ligament (ACL) injuries. However, patient-reported outcomes for repair of this relatively common tear have not been reported. Purpose: To determine the minimum 2-year functional outcomes after LMORT repair at the time of ACL reconstruction (ACLR) compared to a matched cohort of patients who underwent isolated ACLR (iACLR). Study Design: Cohort study; Level of evidence, 3. Methods: Included were 100 patients (mean age at surgery, 21 years; range, 13-45 years) who underwent primary ACLR between 2010 and 2018. The mean follow-up period was 4.1 ± 2.0 years (range, 2.0-9.2 years). A total of 50 patients with surgically repaired LMORT type 3 or type 4 lesions, defined as partial or complete tears >10 mm from the root (LMORT group) were matched 1:1 based on age, date of surgery, and graft choice with 50 patients who underwent iACLR (iACLR group). The postoperative outcomes were compared between groups using the International Knee Documentation Committee subjective score (sIKDC) and the Tegner activity scale. An updated medical history was obtained via the electronic medical record to determine any subsequent complications and reoperations. Results: There was 1 ACL graft failure in each group as well as 5 (10%) reoperations per group. None of the patients in the LMORT group necessitated a lateral meniscal revision repair or partial meniscectomy. The LMORT and iACLR groups reported comparable sIKDC scores (92.5 ± 6.8 vs 91.9 ± 8.2, respectively; P = .712) as well as Tegner scores (6.7 ± 1.8 vs 6.6 ± 1.8, respectively; P = .910) at final follow-up. No failures of the LMORT repairs were reported. Conclusion: The study findings demonstrated that reoperations, graft failure rates, patient-reported outcomes, and patient activity levels at ≥2 years after type 3 and 4 LMORT repairs at the time of ACLR compared favorably with those of a matched cohort of patients who underwent iACLR with intact meniscus.

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