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Am J Sports Med. 2013 Dec;41(12):2753-8. doi: 10.1177/0363546513505079. Epub 2013 Oct 10.

Free rehabilitation is safe after isolated meniscus repair: a prospective randomized trial comparing free with restricted rehabilitation regimens.

Author information

1
Martin Lind, Division of Sports Trauma, Aarhus Sygehus, Tage Hansens Gade 2, DK 8000 Aarhus, Denmark. martinlind@dadlnet.dk.

Abstract

BACKGROUND:

The optimal rehabilitation program after meniscus repair has not been established. Numerous regimens have been suggested as beneficial for meniscus healing, but no controlled trials exist in the literature.

HYPOTHESIS:

The purpose of this prospective randomized trial was to investigate outcome with a free or a restricted rehabilitation regimen after isolated meniscus repair. The hypothesis was that free rehabilitation would result in increased failure of meniscus healing.

STUDY DESIGN:

Randomized controlled clinical trial; Level of evidence, 1.

METHODS:

A total of 60 patients were included in this study within 2 to 3 days after meniscus repair. No patients with concomitant ligament reconstruction or cartilage repair surgery were included. Meniscus repair was performed with the all-inside technique; only vertical meniscus lesions close to the capsule were repaired. Patients were randomized to free (n = 32) or restricted (n = 28) rehabilitation. Free rehabilitation consisted of 2 weeks (range of motion [ROM], 0°-90°, no brace) and touch weightbearing, with unrestricted activity and free ROM allowed thereafter. Restricted rehabilitation consisted of 6 weeks of hinged brace use with a gradual increase ROM to 90° and only touch weightbearing during the 6 weeks. Patients were seen for follow-up at 3 months, 1 year, and 2 years. Those patients with joint line pain at the 3-month follow-up underwent MRI scanning to evaluate meniscus healing; a subsequent arthroscopy was performed for final evaluation meniscus healing if the MRI indicated lack of meniscus healing. At follow-up, the Knee Osteoarthritis Outcome Score (KOOS), Tegner function score, pain assessment, and patient satisfaction were used to evaluate outcomes.

RESULTS:

Eleven patients were lost to follow-up. Repeat arthroscopy in patients with persistent symptoms demonstrated partial healing or lack of healing in 28% and 36% of patients in the free and the restricted rehabilitation groups, respectively (P = .53, nonsignificant). The KOOS and Tegner function scores were similar between groups at all follow-up times, as was patient satisfaction. Patients who underwent subsequent partial meniscectomy because of meniscus repair failure had lower KOOS score and Tegner function score than did patients without repair failure.

CONCLUSION:

Free rehabilitation after meniscus repair is safe and does not entail increased failure rates compared with restricted rehabilitation. Subjective and functional outcomes at 1- and 2-year follow-up were not affected by rehabilitation regimen. Clinical outcomes in patients with repair failure who underwent subsequent partial meniscectomy were poorer than in those with healed meniscus repairs. A concern is the 30% overall lack of healing for patients with isolated meniscus lesions repaired with the all-inside technique.

KEYWORDS:

all-inside meniscus repair; meniscus repair; randomized clinical trial; rehabilitation

PMID:
24114748
DOI:
10.1177/0363546513505079
[Indexed for MEDLINE]

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