Case Report Bilateral, Simultaneous Medial Meniscus Bucket...

Case ReportBilateral, Simultaneous Medial Meniscus Bucket Handle Tears ina 23-Year-Old Female

Brett Walker and Andrew Limbert

Department of Orthopedic Surgery, Michigan State University, McLaren Oakland, Pontiac, MI 48342, USA

Correspondence should be addressed to Brett Walker; walke219@msu.edu

Received 9 May 2014; Accepted 18 August 2014; Published 11 September 2014

Academic Editor: Thierry Begue

Copyright © 2014 B. Walker and A. Limbert. This is an open access article distributed under the Creative Commons AttributionLicense, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properlycited.

Traumatic tears of the meniscus are well reported in the literature. Rarely, bilateral meniscal tears occur. A PubMed search foundthat only three cases of bilateralmedialmeniscus bucket handle type tears have been reported. Treatment options range frompartialmeniscectomy to repair of the meniscal tear. Repair is reported to be more successful in the vascular red-red or red-white zones.We present the case of a 23-year-old female who sustained simultaneous bilateral medial meniscus bucket handle type tears inan automobile accident. She was treated in a staged fashion with knee arthroscopy. Her meniscus tears were both found to be inthe vascularized zone and meniscal tear repair was conducted. At two weeks postoperatively, she had excellent resolution of hersymptoms and has returned to pain-free weight-bearing. She has remained pain-free at six-month follow-up.

1. Introduction

Traumatic meniscal tears are well reported. They are respon-sible for significant pain and loss of function. Infrequently,traumatic meniscal tears are bilateral. After a PubMed liter-ature search, only three reports of bilateral traumatic buckethandle meniscus tears have been reported to our knowledge.None of these cases appeared to occur in the red-red orred-white zone bilaterally. The following case is a 23-year-old female who was involved in a motor vehicle collisionwhere she suffered simultaneous bilateral bucket handle typemeniscus tears, which were both located in the red-whitezone. Neither was associated with ACL pathology. To ourknowledge, this is the first example in the literature.

2. Case

A 23-year-old female was seen in the emergency departmentregarding bilateral knee pain after a motor vehicle collision.As she was restrained, she likely experienced a sudden flexionforce across the knees. Plain film radiography demonstratedno abnormalities and she was discharged home. On follow-up, she complained ofmild swellingwith clicking of her kneeswhich caused her pain. She denied any locking sensation of

her knees. Prior to the accident, she had no complaints ofknee pain.

Plain film radiography was repeated in office and demon-strated no pathology.

The patient’s physical exam revealed no visual deformity.She ambulated with a slightly antalgic gait. There were mildeffusions present bilaterally. Passive range of motion waslimited secondary to pain. There was a five-degree extensionlag present on the right knee while the left knee achieved fullextension. Flexion was symmetric to 135 degrees with pain atthe extreme. She complained of pain with medial joint linecompression and McMurray’s testing was positive medially(both audible clicking and pain) bilaterally. Lachman test wasstable and symmetric bilaterally. There was no posterior lag.Valgus and varus stressing was normal. Further clinical kneetesting was negative. She admitted that her right knee wasmore symptomatic than the left one.

MRI revealed findings consistent with bilateral medialmeniscus bucket handle type tears. There was no evidence ofabnormal meniscal shape. All ligaments, including her ACLs,were intact bilaterally. No further pathology was noted.

Attention was paid to the right knee first, as thepatient had limited passive range of motion and was whereshe reported the most pain. Traditional anteromedial and

Hindawi Publishing CorporationCase Reports in OrthopedicsVolume 2014, Article ID 689130, 3 pageshttp://dx.doi.org/10.1155/2014/689130

2 Case Reports in Orthopedics

(a) (b)

Figure 1: (a) Left knee, prefixation. (b) Left knee, postfixation.

(a) (b)

Figure 2: (a) Right knee, prefixation. (b) Right knee, postfixation.

anterolateral portals were utilized. On initial visualization,no tear was noted of the medial meniscus. When the probewas introduced, however, there was a clear medial meniscusbucket handle type tear. The tear appeared in the red-whitezone of the meniscus as the posterior aspect of the tearappeared pink andwas assumed to be within the vascularizedzone.The edges of the tear did not appear to be frayed. Basedon these observations, the decision was made to repair themeniscus rather than resect it. An all inside knotless suture-anchor technique was used. Three anchors were placed andthe integrity of the meniscus was tested using the probe.This provided excellent stabilization of the tear. Furtherexamination of the remainder of the knee revealed no furtherpathology (Figure 1).

Four weeks later, the patient returned to the operativesuite to have the left knee addressed. Once again, tradi-tional anteromedial and anterolateral portals were utilized. Anondisplaced bucket handle type tear was again observed inthe red-white zone of the medial meniscus. Probe examina-tion revealed that the edgeswere not frayed. In similar fashionas the right knee, the meniscus was repaired. Two anchorswere placed and probe examination revealed excellent stabi-lization of the tear (Figure 2).

Patient was followed closely postoperatively for eachknee. She reported near total resolution of her knee painat her first postoperative visit at two weeks. On subsequent

follow-up, her knee pain had totally resolved and she wasweight bearing without difficulty or pain. She has remainedsymptom-free at six months. Informed consent was obtainedfor participation in this case study.

3. Discussion

The above case highlights traumatic bilateral medial meniscibucket handle tears. No previously reported cases of theserepairs were found on a PubMed literature search. Ourpatient achieved excellent results and is pain-free after bilat-eral repair.

Bucket handle tears are most frequently caused by simpletwisting injury usually related to sport. Shakespeare andRigby reported that out of 196 patients only 4 (2%) weresustained from road traffic accidents [1]. Bucket handle tearsare thought to represent 10–26% of all meniscus tears withmost cases reported unilateral and often associated withACL pathology. Of the cases which are bilateral, most occurnonsimultaneously [2].

Blood supply to the meniscus is from branches of themedial and lateral inferior and middle geniculate arteries [3].The outer 25–30% of themeniscus has sufficient blood supplyto heal. This represents the “red-red” zone and partially the“red-white” zone [4]. Previous reports have shown higher

Case Reports in Orthopedics 3

failure rates for isolated medial meniscus tears without lig-amentous pathology [2]. This may occur because of intrinsicfactors. It has been reported that althoughmedial tears do notheal as well as lateral tears, the majority of meniscal repairswill go on to healing and patients report satisfactory resultsat up to five-year follow-up. Even elite athletes may return toprevious levels of play [5].

During a literature search, three cases were found ofbilateral medial meniscus bucket handle tears. Day et al.reported a 35-year-old male who sustained bilateral medialmeniscus bucket handle tears [3]. These, however, occurrednonsimultaneously and were attributed to a history of manyfootball injuries. Greis and Lahav also reported nonsimulta-neously occurring bucket handle type medial meniscus tearsin a female ice skater [6]. The closest example to our casewas presented by Abbott et al. who described simultaneouslyoccurring bilateral bucket handle tears in a long jumper[7]. None of these cases appeared to be amenable to repairbilaterally.

Our case appears to be unique to those previouslyfound in the literature. It represents simultaneous, bilaterallyoccurring bucket handle style meniscus tears found in theperiphery secondary to motor vehicle trauma, which is a raremechanism of injury.

Conflict of Interests

The authors declare that there is no conflict of interestsregarding the publication of this paper.

References

[1] D. T. Shakespeare and H. S. Rigby, “The bucket-handle tear ofthe meniscus,” Journal of Bone and Joint Surgery B, vol. 65, no.4, pp. 383–387, 1983.

[2] H. B. Sezer, Y. Arikan, R. Armagan, and O. T. Eren, “Bilateralbucket handle medial meniscal tears of the knee: a case report,”International Journal of Surgery Case Reports, vol. 4, no. 10, pp.926–928, 2013.

[3] B. Day, W. G. Mackenzie, S. S. Shim, and G. Leung, “The vas-cular and nerve supply of the human meniscus,” Arthroscopy,vol. 1, no. 1, pp. 58–62, 1985.

[4] J. M. Flynn, “Meniscus tears,” in OKU 10: Orthopaedic Knowl-edge Update, p. 458, American Academy, Rosemont, Ill, USA,2011.

[5] M. Logan, M. Watts, J. Owen, and P. Myers, “Meniscal repairin the elite athlete: results of 45 repairs with a minimum 5-yearfollow-up,” American Journal of Sports Medicine, vol. 37, no. 6,pp. 1131–1134, 2009.

[6] P. E. Greis and A. Lahav, “Bilateral displaced “bucket handle”tears of the medial meniscus in a 16-year-old girl,” The Journalof Knee Surgery, vol. 19, no. 1, pp. 41–44, 2006.

[7] J. Abbott, K. S. Lam, V. M. Srivastava, and A. Moulton, “Sandpits and bucket handles: a case of bilateral traumatic bucket-handle tears of the medial menisci,” Arthroscopy—Journal ofArthroscopic and Related Surgery, vol. 16, no. 6, pp. 1–3, 2000.

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