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Research Article | DOI: https://doi.org/ 10.31579/2641-0427/007
1* Department of Orthopedics, The Behman Hospital, Egypt.
2 Department of Orthopedics surgery, Cairo, Egypt
*Corresponding Author: Trenton Dalton, Department of Orthopedics, The Behman Hospital, Egypt.
Citation: Trenton Dalton and Cesar Ricardo (2018), “Adjunctive bone grafting for symptomatic meniscal tearing with concomitant bone marrow edema”, J. Orthopaedics and Surgical Sports Medicine 1(2); Doi: 10.31579/2641-0427/007
Copyright: © 2018 Trenton Dalton. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Received: 15 September 2018 | Accepted: 21 September 2018 | Published: 27 September 2018
Keywords: meniscal tear, bone marrow lesion, osteochondritis dissecans, stress fracture, stress reaction, knee instability
Meniscal tears are prevalent throughout the population. These tears can become symptomatic for patients including locking, giving way, and buckling, creating instability. Conservative treatment measures initially prior to instability developing may include physical therapy, alternative shots, and rest. Patients may develop bone edema in the proximal tibia following meniscal tearing which may warrant further index treatment measures and a modified physical therapy program when compared to those patients that do not have any bone edema.
Meniscal tears are prevalent throughout the population. These tears can become symptomatic for patients including locking, giving way, and buckling, creating instability. Conservative treatment measures initially prior to instability developing may include physical therapy, alternative shots, and rest. Patients may develop bone edema in the proximal tibia following meniscal tearing which may warrant further index treatment measures and a modified physical therapy program when compared to those patients that do not have any bone edema.
Basic Science
With weight bearing, the menisci transfer forces outwards away from the tibia. As menisci tear, the forces may increase across the proximal tibia. As menisci develop complex tears, patients may develop instability as well, creating additional force across the proximal tibia. The proximal tibia may not have the capacity to handle the excess force, develop bone edema, and possibly a stress fracture. Treatment methods include initially non weight bearing with assistive devices, bracing, and physical therapy. When these measures fail and instability develops, additional arthroscopic treatment of the menisci may be beneficial with bone grafting of the proximal tibia.
From 2014 to 2016, 42 patients had symptomatic instability with stress reactions and meniscal tearing documented on MRI with no greater than Grade II arthritic changes on plain weight bearing x-rays. Following failed conservative treatment measures, arthroscopic outpatient treatment of the menisci with adjunctive bone grafting with auto graft and 5 cc of Cerament (Bonesupport, Inc) of the proximal tibia took place. Postoperatively the patients were seen 1-2 days following the procedure and their dressing changed. Partial weight bearing was recommended along with physical therapy to start the following week. Patients followed up 2 weeks later, sutures were removed, and x-rays obtained. The patients then followed up monthly with x-rays of the knee to assess bone graft incorporation until their symptoms resolved and were asked to follow up as needed.
Twenty two females and 20 males underwent the procedure. Forty seven procedures were done. Five patients had staged bilateral procedures done. Average age was 53. Average follow up was 14 months. No infections occurred. Preoperative average HSS knee score was 53. Postoperative HSS knee score was 92. (p value of 0.01). The five staged bilateral procedures were done between three to five months after the index operation. All 42 had bone graft incorporated with no nonunions or malunions at the harvest site. None of the 47 procedures developed bone edema postoperatively.
Percutaneous subchondroplasty has been described for isolated bone edema lesions in the knee with excellent results. Davis et al showed that subchondroplasty is an effective treatment modality for knee osteoarthritis and bone marrow edema, hopefully delaying the need for a total knee replacement. In patients with meniscal tears and bone edema, our results indicate patients would benefit from adjunctive bone grafting at the edema site with concomitant arthroscopic treatment of the meniscus tears to help the stress reaction and advance physical therapy postoperatively. Cohen et al described that isolated arthroscopic debridement beyond 6 months for bone marrow lesions was not effective but subchondroplasty for osteoarthritis with bone marrow lesions may be a promising approach. Byrd et al showed that midterm outcomes for subchondroplasty 95% would undergo subchondroplasty again and 96% would recommend the procedure. Twenty five percent went on to total knee arthroplasty.
Isolated meniscal tears may not necessarily need adjunctive bone grafting. Yoo et al described no early compromise of a total knee in patients who underwent total knee arthroplasty following subchondroplasty.
Adjunctive bone grafting for symptomatic meniscal tearing with concomitant bone marrow edema in the proximal tibia appears to be providing pain relief and improving functional outcomes in short and midterm follow up for patients.
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