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Older age, lesion status cited among predictors of poor results after medial meniscus posterior root repair

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BARCELONA — In a retrospective study of 40 patients with more than 5 years of follow-up after repair of medial meniscus posterior pullout tears, researchers found modified Outerbridge grade 3 or grade 4 chondral lesion classification, varus alignment and older patient age as factors that may help predict poor outcomes of repair.

Jeong Ku Ha, MD, of Inje University in South Korea, presented the findings at the European Society of Sports Traumatology, Knee Surgery and Arthroscopy Congress, here.

“Univariate analysis showed that significantly Kellgren-Lawrence [K-L] grade and meniscal extrusion and meniscal status and chondral lesion status are related to poor prognosis,” Ha said.

Jeong Ku Ha

According to Ha, the mean age of the patients treated in the study was 55 years. As age may be one factor clinicians can use to select patients for these repairs, Ha said he and his colleagues have changed their practice based on these findings and shifted the age of patients in whom they do these root pullout repairs. They now only perform the root pullout repair in patients aged 40 years to 64 years, he said.

Ha and colleagues studied the patients’ Lysholm and IKDC subjective scores and compared preoperative full X-rays to those taken postoperatively. They used the Rosenberg view to determine the K-L grade.

“Lysholm score improved significantly. IKDC score significantly improved,” Ha said.

These improvements occurred despite an overall observed loss of medial joint space width and significant progression of the K-L grade reported in the study abstract.

The Lysholm scores improved from 52.1 preoperatively to 83.8 at 5 years postoperatively, and the IKDC scores improved from 40.1 to 73.3. – by Susan M. Rapp

Reference:

Ha, JK. Paper #FP-32-2422. Presented at: European Society of Sports Traumatology, Knee Surgery and Arthroscopy Congress; May 4-7, 2016; Barcelona.

Disclosure: Ha reports no relevant financial disclosures.