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Alfaro-Adrián J. Medial Meniscal Root Repair Should Be Combined with High Tibial Osteotomy in Cases of Meniscal Extrusion. Arthroscopy 2024:S0749-8063(24)00625-X. [PMID: 39243994 DOI: 10.1016/j.arthro.2024.08.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2024] [Accepted: 08/23/2024] [Indexed: 09/09/2024]
Abstract
Medial meniscus extrusion (MME) is classically defined as radial displacement of ≥3 mm outside the tibial border. MME is usually seen in middle age patients and it is strongly associated with medial meniscus root (MMR) pathology and medial femorotibial compartment degenerative change. MMR tears are associated with cartilage defects of the medial femoral condyle (89%) and MME ≥3mm (67%). If MMR tears are associated with MME, high tibial osteotomy (HTO) combined with MMR repair may reduce MME and protect the medial compartment. Recent research shows combined MMR repair and HTO yield improved radiographic and functional outcomes.
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Lamba A, Regan C, Levy BA, Stuart MJ, Krych AJ, Hevesi M. Long-term Outcomes of Partial Meniscectomy for Degenerative Medial Meniscus Posterior Root Tears. Orthop J Sports Med 2024; 12:23259671241266593. [PMID: 39247528 PMCID: PMC11375645 DOI: 10.1177/23259671241266593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 02/26/2024] [Indexed: 09/10/2024] Open
Abstract
Background Previous studies have demonstrated that medial meniscus posterior root tear (MMPRT) repair is superior to debridement in terms of patient-reported outcomes, rates of conversion to total knee arthroplasty (TKA), and long-term costs. Despite the known poor midterm outcomes, there is a paucity of long-term results of partial meniscectomy for degenerative MMPRTs. Purpose To 1) evaluate long-term patient-reported and radiographic outcomes of patients who underwent partial medial meniscectomy (PMM) for MMPRTs, and 2) determine the rate of and risk factors for conversion to total knee TKA. Study Design Case series; Level of evidence, 4. Methods A previously identified cohort of 26 patients treated with partial meniscectomy for isolated MMPRTs between 2005 and 2013 was prospectively followed for long-term outcomes at a minimum 10-year follow-up. Patients were evaluated for International Knee Documentation Committee (IKDC) outcome score, reoperation, and conversion to TKA. Failure was defined as conversion to arthroplasty or a severely abnormal IKDC subjective score <75.4. Results This study included 26 patients (10 men, 16 women; mean age, 54 ± 8.7 years [range, 38-71 years] at diagnosis; body mass index, 32.9 ± 5.5) who were followed for a mean of 14.0 ± 3.6 years (range, 10.1-19.6 years). At the final follow-up, 1 patient was deceased and 18 (72%) of the remaining 25 patients had progressed to TKA, with 1 (4%) patient undergoing repeat meniscectomy. The 6 (24%) patients who had not progressed to TKA or revision surgery reported a mean IKDC score of 57 ± 23. Nineteen patients underwent subsequent surgery and 5 demonstrated severely abnormal IKDC scores resulting in a clinical failure rate of 96% (24 of the 25 living patients) at a mean 14-year follow-up. Conclusion PMM for medial meniscus posterior horn root tears demonstrated 72% progression to TKA and 96% failure according to subjective clinical outcomes at a minimum 10-year follow-up.
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Affiliation(s)
- Abhinav Lamba
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Christina Regan
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Bruce A Levy
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Michael J Stuart
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Aaron J Krych
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Mario Hevesi
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
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Uchio Y, Ishijima M, Ikeuchi M, Ikegawa S, Ishibashi Y, Omori G, Shiba N, Takeuchi R, Tanaka S, Tsumura H, Deie M, Tohyama H, Yoshimura N, Nakashima Y. Japanese Orthopaedic Association (JOA) clinical practice guidelines on the management of Osteoarthritis of the knee - Secondary publication. J Orthop Sci 2024:S0949-2658(24)00139-8. [PMID: 39127581 DOI: 10.1016/j.jos.2024.06.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 06/28/2024] [Indexed: 08/12/2024]
Affiliation(s)
- Yuji Uchio
- Department of Orthopaedic Surgery, Shimane University, Izumo, Japan.
| | | | - Masahiko Ikeuchi
- Department of Orthopaedic Surgery, Kochi University, Nankoku, Japan
| | - Shiro Ikegawa
- Laboratory for Bone and Joint Diseases, Center for Integrated Medical Science (IMS), RIKEN, Tokyo, Japan
| | - Yasuyuki Ishibashi
- Department of Orthopedic Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Go Omori
- Department of Health and Sports, Niigata University of Health and Welfare, Niigata, Japan
| | - Naoto Shiba
- Department of Orthopaedics, Kurume University School of Medicine, Fukuoka, Japan
| | - Ryohei Takeuchi
- Department of Joint Surgery Center, Yokohama Sekishinkai Hospital, Yokohama, Japan
| | - Sakae Tanaka
- Department of Orthopaedic Surgery, University of Tokyo, Tokyo, Japan
| | - Hiroshi Tsumura
- Department of Orthopaedic Surgery, Oita University, Oita, Japan
| | - Masataka Deie
- Department of Orthopaedic Surgery, Aichi Medical University, Nagakute, Japan
| | | | - Noriko Yoshimura
- Department of Preventive Medicine for Locomotive Organ Disorders, 22nd Century Medical and Research Center, University of Tokyo, Tokyo, Japan
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Okamura H, Ishikawa H, Ohno T, Nagasaki K, Fujita S, Yamakami S, Yamamoto S, Kudo Y. Evaluation of the usefulness of non-weight-bearing tunnel view using X-ray in the short term after medial meniscus posterior root tear onset: a retrospective study. BMC Musculoskelet Disord 2024; 25:628. [PMID: 39107775 PMCID: PMC11304616 DOI: 10.1186/s12891-024-07751-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Accepted: 08/01/2024] [Indexed: 08/10/2024] Open
Abstract
BACKGROUND This study aimed to examine whether the non-weight-bearing tunnel view X-ray is effective for short-term evaluation of medial meniscus posterior root tear (MMPRT) by assessing the X-ray characteristics at the initial and follow-up visits. METHODS This was a retrospective longitudinal study of 26 enrolled knees diagnosed with MMPRT on magnetic resonance imaging. The distance between the medial tibial eminence and medial femoral condyle (MTE-MFC distance) and medial tibiofemoral joint (MTFJ) width were measured by obtaining non-weight-bearing tunnel view and frontal view X-ray radiographs. The initial and follow-up values at a median interval of 17 days were compared. Additionally, the correlations between the MTE-MFC distance increase rate and body mass index (BMI), age, femorotibial angle (FTA), and posterior tibial slope (PTS) were evaluated using linear regression analysis. RESULTS The tunnel view images of the initial and follow-up X-rays showed a significant increase in the MTE-MFC distance and a significant decrease in the MTFJ width. Furthermore, a moderate correlation was observed between the change in the MTE-MFC distance and the time interval between X-rays. However, no substantial correlation was observed for the change in the MTFJ width over time. Moreover, no significant correlation was observed between the change in the MTE-MFC distance in the non-weight-bearing tunnel view and BMI, age, FTA, and PTS. CONCLUSIONS The non-weight-bearing tunnel view is highly beneficial for evaluating MMPRT progression in the short term.
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Affiliation(s)
- Hiroki Okamura
- Department of Orthopedic Surgery, Nihon Koukan Hospital, 1-2-1 Koukandori, Kawasaki-ku, Kanagawa, 210-0852, Japan.
| | - Hiroki Ishikawa
- Department of Orthopedic Surgery, Nihon Koukan Hospital, 1-2-1 Koukandori, Kawasaki-ku, Kanagawa, 210-0852, Japan
| | - Takuya Ohno
- Department of Orthopedic Surgery, Nihon Koukan Hospital, 1-2-1 Koukandori, Kawasaki-ku, Kanagawa, 210-0852, Japan
| | - Kei Nagasaki
- Department of Orthopedic Surgery, Showa University School of Medicine, Tokyo, Japan
| | - Shogo Fujita
- Department of Orthopedic Surgery, Nihon Koukan Hospital, 1-2-1 Koukandori, Kawasaki-ku, Kanagawa, 210-0852, Japan
| | - Shigeo Yamakami
- Department of Orthopedic Surgery, Nihon Koukan Hospital, 1-2-1 Koukandori, Kawasaki-ku, Kanagawa, 210-0852, Japan
| | - Shota Yamamoto
- Department of Orthopedic Surgery, Nihon Koukan Hospital, 1-2-1 Koukandori, Kawasaki-ku, Kanagawa, 210-0852, Japan
| | - Yoshifumi Kudo
- Department of Orthopedic Surgery, Showa University School of Medicine, Tokyo, Japan
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Ozeki N, Koga H, Nakamura T, Katagiri H, Nakagawa Y, Hoshino T, Katakura M, Amemiya M, Yoshihara A, Katano H, Mizuno M, Endo K, Masumoto J, Sekiya I. The association of the medial meniscus covering ratio with knee cartilage thickness at 15 medial compartment subregions as found by three-dimensional analysis using MRI. J Exp Orthop 2024; 11:e70005. [PMID: 39193488 PMCID: PMC11347932 DOI: 10.1002/jeo2.70005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 06/15/2024] [Accepted: 06/21/2024] [Indexed: 08/29/2024] Open
Abstract
Purpose The correlation of cartilage thickness measured by three-dimensional (3D) magnetic resonance imaging (MRI) and the medial meniscal coverage ratio (MMCR), which presented pathology of the medial meniscus extrusion (MME) in 3D MRI, has not yet been elucidated. The study's purpose was to retrospectively verify whether the average cartilage thickness calculated by the automatic MRI 3D analysis system for each subregion was correlated with MMCR. Methods A total of 60 patients underwent medial meniscus repair or high tibial osteotomy to treat their medial knee osteoarthritis. Cartilage thickness and MMCR were automatically calculated using 3D MRI software. The MMCR was defined as the ratio of the area covered by the meniscus within the medial tibial cartilage area to the total medial tibial cartilage area. The association between MMCR and the average cartilage thickness at 15 subregions in the medial femoral condyle (MFC) and medial tibial plateau (MTP) was evaluated using Spearman's rank correlation coefficient. Results Kellgren-Lawrence grade exhibited a negative correlation with MMCR and a positive correlation with MME width. Cartilage thickness in the MTP had a moderately positive correlation with MMCR at four subregions and a weakly positive correlation at another subregion. Cartilage thickness in the MFC showed a moderately positive correlation with MMCR at five subregions and a weakly positive correlation at one subregion. Conclusions Cartilage thickness calculated by automatic MRI 3D analysis system had a positive correlation with MMCR for all subregions of the anterior and middle subregions in the MFC and for five regions of nine subregions of the anterior and middle subregions in the MTP. Level of evidence Level II, cross-sectional study (diagnosis).
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Affiliation(s)
- Nobutake Ozeki
- Center for Stem Cell and Regenerative MedicineTokyo Medical and Dental UniversityTokyoJapan
| | - Hideyuki Koga
- Department of Joint Surgery and Sports Medicine, Graduate School of Medical and Dental SciencesTokyo Medical and Dental UniversityTokyoJapan
| | - Tomomasa Nakamura
- Department of Joint Surgery and Sports Medicine, Graduate School of Medical and Dental SciencesTokyo Medical and Dental UniversityTokyoJapan
| | - Hiroki Katagiri
- Department of Joint Surgery and Sports Medicine, Graduate School of Medical and Dental SciencesTokyo Medical and Dental UniversityTokyoJapan
| | - Yusuke Nakagawa
- Department of Cartilage RegenerationTokyo Medical and Dental UniversityTokyoJapan
| | - Takashi Hoshino
- Clinical Center for Sports MedicineTokyo Medical and Dental UniversityTokyoJapan
| | - Mai Katakura
- Department of Joint Surgery and Sports Medicine, Graduate School of Medical and Dental SciencesTokyo Medical and Dental UniversityTokyoJapan
| | - Masaki Amemiya
- Clinical Center for Sports MedicineTokyo Medical and Dental UniversityTokyoJapan
| | - Aritoshi Yoshihara
- Department of Joint Surgery and Sports Medicine, Graduate School of Medical and Dental SciencesTokyo Medical and Dental UniversityTokyoJapan
| | - Hisako Katano
- Center for Stem Cell and Regenerative MedicineTokyo Medical and Dental UniversityTokyoJapan
| | - Mitsuru Mizuno
- Center for Stem Cell and Regenerative MedicineTokyo Medical and Dental UniversityTokyoJapan
| | - Kentaro Endo
- Center for Stem Cell and Regenerative MedicineTokyo Medical and Dental UniversityTokyoJapan
| | | | - Ichiro Sekiya
- Center for Stem Cell and Regenerative MedicineTokyo Medical and Dental UniversityTokyoJapan
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Stokes DJ, Cram TR, Laynes RA, Peszek A, Shinsako KK, Frank RM. Posterior Meniscus Root Repair Using a Retensionable Knotless All-Suture Anchor. Arthrosc Tech 2024; 13:102985. [PMID: 39100261 PMCID: PMC11293319 DOI: 10.1016/j.eats.2024.102985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 02/08/2024] [Indexed: 08/06/2024] Open
Abstract
Meniscus root injuries lead to increased tibiofemoral contact pressures and rapid progression of osteoarthritis. Early recognition and treatment with a meniscal root repair can restore biomechanics and help preserve the joint. The transtibial pullout repair and suture anchor repair are the most commonly used techniques to achieve anatomic fixation of the meniscal root. Still, each method presents distinct advantages and disadvantages. This Technical Note aims to describe a vastly simplified, more efficient, and reproducible posterior lateral meniscal root repair using a retensionable knotless all-suture anchor.
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Affiliation(s)
- Daniel J. Stokes
- Department of Orthopaedic Surgery, University of Colorado School of Medicine, Aurora, Colorado, U.S.A
| | - Tyler R. Cram
- Department of Orthopaedic Surgery, University of Colorado School of Medicine, Aurora, Colorado, U.S.A
| | - Renzo A. Laynes
- Department of Orthopaedic Surgery, University of Colorado School of Medicine, Aurora, Colorado, U.S.A
| | - Adam Peszek
- Department of Orthopaedic Surgery, University of Colorado School of Medicine, Aurora, Colorado, U.S.A
| | - Kevin K. Shinsako
- Department of Orthopaedic Surgery, University of Colorado School of Medicine, Aurora, Colorado, U.S.A
| | - Rachel M. Frank
- Department of Orthopaedic Surgery, University of Colorado School of Medicine, Aurora, Colorado, U.S.A
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Kaneko S, Hashimoto S, Honda A, Ohsawa T, Takase R, Shimada T, Chikuda H. The Usefulness of Posterior Shiny Corner Lesions in the Early Diagnosis of Medial Meniscus Posterior Root Tears. Cureus 2024; 16:e60605. [PMID: 38894800 PMCID: PMC11185192 DOI: 10.7759/cureus.60605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/18/2024] [Indexed: 06/21/2024] Open
Abstract
INTRODUCTION Posterior shiny corner lesions (PSCLs) have been reported to be useful for the early diagnosis of medial meniscus posterior root tears (MMPRTs) in surgical patients. However, the usefulness of PSCLs in outpatients, particularly regarding the optimal timing of magnetic resonance imaging (MRI) examinations after injury, remains unknown. We hypothesized that PSCLs would normally be observed in patients with MMPRTs within one month of injury. MATERIALS AND METHODS This study included 144 patients with knee pain who visited our hospital between January 2021 and May 2023. MRI findings within and after one month were examined. Fisher's exact test was performed for PSCLs, cleft signs, ghost signs, radial tear signs, bone cysts, and medial meniscus extrusion (MME), which are findings used for the diagnosis of MMPRTs. Time-dependent receiver operating characteristic (ROC) curve analysis was performed for each MRI finding. A binomial logistic regression analysis was performed for age, sex, PSCL, ghost sign, and MME. RESULTS PSCLs were observed on 82.6% of the MRI scans within one month, but the positivity rate decreased after one month. After one month, a high percentage of patients had cleft signs and ghost signs. The results of a time-dependent ROC curve analysis showed that the PSCL had better diagnostic ability than the cleft sign, ghost sign, radial tear sign, and MME at a relatively early stage. Additionally, the area under the curve (AUC) of PSCL peaks around 35 days and then declines, reaching 0.8 or less around 40 days. On the other hand, the AUC of the cleft sign and ghost sign began to increase around 30 days after injury, and it exceeded 0.8 after approximately 100 days. The results of the binomial logistic regression analysis revealed significant PSCLs and ghost signs. Independent associations between the PSCL, or ghost sign, and the MMPRT were demonstrated. CONCLUSION This study suggests that PSCLs have a superior diagnostic capability for MMPRT during the early stages of injury compared with other MRI findings in outpatients. In particular, PSCLs have a high positivity rate within one month after injury and a high diagnostic capacity up to 40 days after injury.
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Affiliation(s)
- Soya Kaneko
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi, JPN
| | - Shogo Hashimoto
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi, JPN
| | - Akira Honda
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi, JPN
| | - Takashi Ohsawa
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi, JPN
| | - Ryota Takase
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi, JPN
| | - Takeshi Shimada
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi, JPN
| | - Hirotaka Chikuda
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, Maebashi, JPN
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Lee DR, Clark SC, Daniel AV, Krych AJ, Smith PA. Arthroscopic Medial Meniscus Posterior Horn Direct Anchor Root Repair: Transtibial Approach With Knotless Adjustable Aperture Fixation. Arthrosc Tech 2024; 13:102934. [PMID: 38835457 PMCID: PMC11144809 DOI: 10.1016/j.eats.2024.102934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 12/22/2023] [Indexed: 06/06/2024] Open
Abstract
The integrity of the posterior meniscus root attachment is vital for the preservation of knee joint biomechanics. Meniscus root tears treated nonoperatively or with meniscectomy lead to poor functional outcomes and progressive knee degeneration. Repair returns knee biomechanics back to the intact state and has an established record of positive mid-term to long-term results. Although transtibial pullout repair has been the gold standard, innovation is needed to overcome the limitations inherent to traditional approaches. The latest generation of transtibial pullout repair devices is adjustable, permits suture anchor placement directly into the root footprint, and has demonstrated encouraging early results in biomechanical analysis. This Technical Note describes an arthroscopic technique for medial meniscus posterior root repair that uses a knotless adjustable implant (SutureLoc; Arthrex) for aperture fixation via a transtibial approach with intratunnel soft anchor direct fixation and rip-stop suture configuration.
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Affiliation(s)
- Dustin R. Lee
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, U.S.A
| | - Sean C. Clark
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, U.S.A
| | | | - Aaron J. Krych
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, U.S.A
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Yokota S, Ishizu H, Miyazaki T, Takahashi D, Iwasaki N, Shimizu T. Osteoporosis, Osteoarthritis, and Subchondral Insufficiency Fracture: Recent Insights. Biomedicines 2024; 12:843. [PMID: 38672197 PMCID: PMC11048726 DOI: 10.3390/biomedicines12040843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 03/31/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
The increased incidence of osteoarthritis (OA), particularly knee and hip OA, and osteoporosis (OP), owing to population aging, have escalated the medical expense burden. Osteoarthritis is more prevalent in older women, and the involvement of subchondral bone fragility spotlights its association with OP. Notably, subchondral insufficiency fracture (SIF) may represent a more pronounced condition of OA pathophysiology. This review summarizes the relationship between OA and OP, incorporating recent insights into SIF. Progressive SIF leads to joint collapse and secondary OA and is associated with OP. Furthermore, the thinning and fragility of subchondral bone in early-stage OA suggest that SIF may be a subtype of OA (osteoporosis-related OA, OPOA) characterized by significant subchondral bone damage. The high bone mineral density observed in OA may be overestimated due to osteophytes and sclerosis and can potentially contribute to OPOA. The incidence of OPOA is expected to increase along with population aging. Therefore, prioritizing OP screening, early interventions for patients with early-stage OA, and fracture prevention measures such as rehabilitation, fracture liaison services, nutritional management, and medication guidance are essential.
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Affiliation(s)
| | | | | | | | | | - Tomohiro Shimizu
- Department of Orthopedic Surgery, Faculty of Medicine, Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, Japan; (S.Y.); (H.I.); (T.M.); (D.T.); (N.I.)
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Mundal K, Geeslin AG, Solheim E, Inderhaug E. Differences Between Traumatic and Degenerative Medial Meniscus Posterior Root Tears: A Systematic Review. Am J Sports Med 2024:3635465241237254. [PMID: 38600780 DOI: 10.1177/03635465241237254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
BACKGROUND Intact meniscus roots are a prerequisite for normal meniscal function, including even distribution of compressive forces across the knee joint. An injury to the root disrupts the hoop strength of the meniscus and may lead to its extrusion and the development of osteoarthritis. A medial meniscus posterior root tear (MMPRT) is often thought to have a primary degenerative pathogenesis. However, there is mention of some cases of MMPRTs where the patients have a solely traumatic injury to a previously healthy meniscus. PURPOSE To describe a subpopulation of patients with traumatic MMPRT. STUDY DESIGN Systematic review; Level of evidence, 5. METHODS The Web of Science database (www.webofscience.com) was queried using the Medical Subject Headings term "medial root tear." Articles were reviewed, and those evaluated for MMPRTs in a degenerative meniscus were excluded. A total of 25 articles describing cases of acute traumatic causes were included in this study. For these articles, the patient characteristics, injury mechanisms, and concomitant injuries evaluated were recorded and pooled. RESULTS The search revealed 660 articles, and 25 were selected for inclusion. A total of 113 patients with a traumatic MMPRT were identified and included in this review. The study population had a mean age of 27.1 years and a high share of men (64%). Also, this review displays how most patients with traumatic MMPRTs also suffer concomitant injuries (68%). CONCLUSION The findings in this review support our hypothesis that there is a unique subgroup with acute traumatic MMPRTs that have unique patient characteristics, injury mechanisms, and combined injuries, compared with previously published reviews on MMPRTs.
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Affiliation(s)
- Kristine Mundal
- Department of Clinical Medicine, University of Bergen, Bergen, Norway
- Haukeland University Hospital, Bergen, Norway
| | - Andrew G Geeslin
- Larner College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Eirik Solheim
- Department of Clinical Medicine, University of Bergen, Bergen, Norway
- Aleris Nesttun Bergen, Bergen, Norway
| | - Eivind Inderhaug
- Department of Clinical Medicine, University of Bergen, Bergen, Norway
- Haukeland University Hospital, Bergen, Norway
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Chen Z, Li A, Shi R, Wang L, Cao Z, Mao N, Luo Z, Tan H. Reconstruction of medial meniscus posterior portion deficiency in pigs with an autologous patellar tendon graft: an experimental study. J Orthop Surg Res 2024; 19:225. [PMID: 38576008 PMCID: PMC10996223 DOI: 10.1186/s13018-024-04684-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 03/16/2024] [Indexed: 04/06/2024] Open
Abstract
OBJECTIVE This study was performed to investigate the effectiveness of two surgical procedures, autologous patellar tendon graft reconstruction and trans-tibial plateau pull-out repair, using a pig model. The primary focus was to assess the repair capability of medial meniscus posterior portion (MMPP) deficiency, the overall structural integrity of the meniscus, and protection of the femoral and tibial cartilage between the two surgical groups. The overall aim was to provide experimental guidelines for clinical research using these findings. METHODS Twelve pigs were selected to establish a model of injury to the MMPP 10 mm from the insertion point of the tibial plateau. They were randomly divided into three groups of four animals each: reconstruction (autologous tendon graft reconstruction of the MMPP), pull-out repair (suture repair of the MMPP via a trans-tibial plateau bone tunnel), and control (use of a normal medial meniscus as the negative control). The animals were euthanized 12 weeks postoperatively for evaluation of the meniscus, assessment of tendon bone healing, and gross observation of knee joint cartilage. The tibial and femoral cartilage injuries were evaluated using the International Society for Cartilage Repair (ICRS) grade and Mankin score. Histological and immunohistochemical staining was conducted on the meniscus-tendon junction area, primary meniscus, and tendons. The Ishida score was used to evaluate the regenerated meniscus in the reconstruction group. Magnetic resonance imaging (MRI) was used to evaluate meniscal healing. RESULTS All 12 pigs recovered well after surgery; all incisions healed without infection, and no obvious complications occurred. Gross observation revealed superior results in the reconstruction and pull-out repair groups compared with the control group. In the tibial cartilage, the reconstruction group had ICRS grade I injury whereas the pull-out repair and control groups had ICRS grade II and III injury, respectively. The Mankin score was significantly different between the reconstruction and control groups; histological staining showed that the structure of the regenerated meniscus in the reconstruction group was similar to that of the original meniscus. Immunohistochemical staining showed that the degree of type I and II collagen staining was similar between the regenerated meniscus and the original meniscus in the reconstruction group. The Ishida score was not significantly different between the regenerated meniscus and the normal primary meniscus in the reconstruction group. MRI showed that the MMPP in the reconstruction and pull-out repair groups had fully healed, whereas that in the control group had not healed. CONCLUSION Autologous patellar tendon graft reconstruction of the MMPP can generate a fibrocartilage-like regenerative meniscus. Both reconstruction and pull-out repair can preserve the structural integrity of the meniscus, promote healing of the MMPP, delay meniscal degeneration, and protect the knee cartilage.
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Affiliation(s)
- Zhian Chen
- Graduate School, Kunming Medical University, Kunming City, Yunnan Province, China
| | - Anxu Li
- Department of Orthopaedics, People's Liberation Army Joint Logistic Support Force 920th Hospital, Kunming City, Yunnan Province, China
| | - Rongmao Shi
- Department of Orthopaedics, People's Liberation Army Joint Logistic Support Force 920th Hospital, Kunming City, Yunnan Province, China
| | - Ling Wang
- Graduate School, Kunming Medical University, Kunming City, Yunnan Province, China
| | - Zijian Cao
- Graduate School, Kunming Medical University, Kunming City, Yunnan Province, China
| | - Neng Mao
- Graduate School, Kunming Medical University, Kunming City, Yunnan Province, China
| | - Zhihong Luo
- Department of Orthopaedics, People's Liberation Army Joint Logistic Support Force 920th Hospital, Kunming City, Yunnan Province, China
| | - Hongbo Tan
- Department of Orthopaedics, People's Liberation Army Joint Logistic Support Force 920th Hospital, Kunming City, Yunnan Province, China.
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Graham BC, Weiss-Laxer NS, Haider MN, Marzo JM. Item-Specific Knee Injury and Osteoarthritis Outcome Score Characterization of Patients With Medial Meniscus Root Tear. Orthop J Sports Med 2024; 12:23259671241241094. [PMID: 38617884 PMCID: PMC11015791 DOI: 10.1177/23259671241241094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 09/06/2023] [Indexed: 04/16/2024] Open
Abstract
Background Most studies regarding medial meniscus posterior root tear (MMPRT) report total Knee injury and Osteoarthritis Outcome Score (KOOS) subscale values as important patient-reported outcomes, but there are few symptom-specific characterizations of patients with MMPRT. Purpose/Hypothesis The purpose of this study was to characterize the prevalence and severity of symptoms and functional limitations among patients with MMPRT based on item-level KOOS responses. It was hypothesized that patients with MMPRT would show similar symptoms to those of other meniscal tear types, with items from the KOOS pain subscale forming a majority of the most severe and prevalent symptoms. Study Design Cross-sectional study; Level of evidence, 3. Methods The records of 1466 patients with medial meniscus root tear between January 2017 and December 2021 at a single institution were reviewed. KOOS subscale scores and item-specific responses from initial evaluation were collected for each patient. Each KOOS item was scored on a scale from 1 (none/least severe) to 5 (extreme/most severe). Median and mean item-level responses were calculated and ranked in order of most to least severe. For statistical analysis, item-level prevalence rates were calculated as the proportion of patients reporting at least mild symptoms and ranked from most to least prevalent. Results Included were 61 patients with MMPRT verified on magnetic resonance imaging (MRI). The most severe items according to item-level KOOS response were as follows: awareness of knee problem (mean, 4.62 [95% CI, 4.47-4.78]), difficulty jumping (mean, 4.06 [95% CI, 3.73-4.39]), difficulty twisting or pivoting (mean, 4.04 [95% CI, 3.76-4.32]), difficulty kneeling (mean, 3.98 [95% CI, 3.65-4.31]), and modification of lifestyle (mean, 3.94 [95% CI, 3.69-4.20]). The most prevalent items were knee stiffness later in the day, pain going up- or downstairs, difficulty ascending stairs, difficulty getting in and out of the car, difficulty twisting or pivoting, awareness of knee problem, and modification of lifestyle, with all patients reporting at least mild symptoms for each. Of the 11 most severe and prevalent symptoms, 8 came from the KOOS-Pain item-specific responses. Conclusion Pain-related items made up a majority of the most severe and most prevalent symptoms as identified by the item-specific KOOS responses. However, meniscal symptoms commonly seen in other tear types, such as clicking and knee stiffness, were still quite prevalent in patients with MMPRT.
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Affiliation(s)
- Benjamin C. Graham
- Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, New York, USA
| | | | | | - John M. Marzo
- UBMD Orthopaedics and Sports Medicine, Buffalo, New York, USA
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Manatrakul R, Loeffler M, Bharadwaj UU, Joseph GB, Lansdown D, Feeley B, Baal JD, Guimaraes JB, Link TM. Clinical and radiologic outcomes in patients with meniscal root tears. BMC Musculoskelet Disord 2024; 25:232. [PMID: 38521904 PMCID: PMC10960405 DOI: 10.1186/s12891-024-07359-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 03/14/2024] [Indexed: 03/25/2024] Open
Abstract
BACKGROUND Meniscal root tears can lead to early knee osteoarthritis and pain. This study aimed (1) to compare clinical and radiological outcomes between patients who underwent arthroscopic meniscal root repair after meniscal root tears and those who received non-surgical treatment, and (2) to identify whether baseline MRI findings could be potential predictors for future treatment strategies. METHODS Patients with meniscal root tears were identified from our picture archiving and communication system from 2016 to 2020. Two radiologists reviewed radiographs and MRI studies using Kellgren-Lawrence (KL) grading and a modified Whole Organ MRI Scoring (WORMS) at baseline and follow-up. The median (interquartile range [IQR]) of follow-up radiographs and MRI studies were 134 (44-443) days and 502 (260-1176) days, respectively. MR images were assessed for root tear-related findings. Pain scores using visual analogue scale (VAS) and management strategies (non-surgical vs. arthroscopic root repair) were also collected. Chi-squared tests and independent t-tests were used to assess differences regarding clinical and imaging variables between treatment groups. Logistic regression analyses were performed to evaluate the associations between baseline MRI findings and each future treatment. RESULTS Ninety patients were included. VAS pain scores were significantly (p < 0.01) lower after arthroscopic repair compared to conservative treatment (1.27±0.38vs.4±0.52) at the last follow-up visit with median (IQR) of 325 (180-1391) days. Increased meniscal extrusion (mm) was associated with higher odds of receiving non-surgical treatment (OR = 1.65, 95%CI 1.02-2.69, p = 0.04). The odds of having arthroscopic repair increased by 19% for every 1 mm increase in the distance of the tear from the root attachment (OR = 1.19, 95% CI: 1.05-1.36, p < 0.01). The odds of undergoing arthroscopic repair were reduced by 49% for every 1 mm increase in the extent of meniscal extrusion (OR = 0.51, 95% CI: 0.29-0.91, p = 0.02) as observed in the baseline MRI. CONCLUSIONS Patients who underwent arthroscopic repair had lower pain scores than patients with conservative treatment in the follow-up. Distance of the torn meniscus to the root attachment and the extent of meniscal extrusion were significant predictors for arthroscopic repair in the next three weeks (time from the baseline MRI to the surgery date).
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Affiliation(s)
- Rawee Manatrakul
- Department of Radiology and Biomedical Imaging, University of California San Francisco, 185 Berry St, Suite 350, San Francisco, CA, 94158, USA
- Department of Radiology, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Maximilian Loeffler
- Department of Radiology and Biomedical Imaging, University of California San Francisco, 185 Berry St, Suite 350, San Francisco, CA, 94158, USA
- Department of Diagnostic and Interventional Radiology, University Medical Center Freiburg, Freiburg im Breisgau, Germany
| | - Upasana U Bharadwaj
- Department of Radiology and Biomedical Imaging, University of California San Francisco, 185 Berry St, Suite 350, San Francisco, CA, 94158, USA
| | - Gabby B Joseph
- Department of Radiology and Biomedical Imaging, University of California San Francisco, 185 Berry St, Suite 350, San Francisco, CA, 94158, USA
| | - Drew Lansdown
- Department of Orthopaedic Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Brian Feeley
- Department of Orthopaedic Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Joe D Baal
- Department of Radiology and Biomedical Imaging, University of California San Francisco, 185 Berry St, Suite 350, San Francisco, CA, 94158, USA
| | - Julio B Guimaraes
- Department of Radiology and Biomedical Imaging, University of California San Francisco, 185 Berry St, Suite 350, San Francisco, CA, 94158, USA
- Department of Radiology, Federal University of Sao Paulo (UNIFESP), Sao Paulo, Brazil
- Department of Musculoskeletal Radiology, Fleury Medicina e Saúde, São Paulo, Brazil
| | - Thomas M Link
- Department of Radiology and Biomedical Imaging, University of California San Francisco, 185 Berry St, Suite 350, San Francisco, CA, 94158, USA.
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Jackson GR, Warrier AA, Wessels M, Khan ZA, Obioha O, McCormick JR, Kaplan DJ, Mameri ES, Knapik DM, Verma NN, Chahla J. A Systematic Review of Adverse Events and Complications After Isolated Posterior Medial Meniscus Root Repairs. Am J Sports Med 2024; 52:1109-1115. [PMID: 37129097 DOI: 10.1177/03635465231157758] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
BACKGROUND Medial meniscus posterior root (MMPR) tears are recognized as a substantial cause of disability and morbidity. However, meniscus root repair, regardless of technique, is not without potential complications. PURPOSE To evaluate the reported incidence of complications and adverse events after isolated MMPR repair. STUDY DESIGN Systematic review; Level of evidence, 4. METHODS A systematic review was conducted according to the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines using Embase, PubMed, and Scopus databases with the following search terms combined with Boolean operators: "meniscus,""root," and "repair." Inclusion criteria consisted of level 1 to 4 human clinical studies in English or English-language translation reporting complications and adverse events after isolated posterior medial meniscus root repairs. The overall incidence of specific complications was estimated from the pooled sample of the included studies. RESULTS Eleven studies with a total pooled sample of 442 patients were identified. The mean patient age was 58.1 years, while the mean final follow-up time was 37.2 months (range, 12-84.8 months). The overall incidence of complications was 9.7% (n = 43/442), with the most commonly reported complication being progressive degenerative changes within the knee (10.4%; n = 25/240; n = 5 studies). A total of 1.25% (n = 3/240) of patients who experienced degenerative changes required conversion to total knee arthroplasty. Repair failures were reported in 3.1% (n = 10/327; n = 8 studies) of patients. CONCLUSION Repairing MMPR tears is critical in preventing accelerated progression of knee osteoarthritis in patients without significant knee osteoarthritis preoperatively. While this repair is still recommended and necessary in appropriate patients, this review found that the incidence of complications after isolated posterior medial meniscus root repair was 9.7%, primarily involving the presence of progressive degeneration, while repair failure was reported in 3% of patients.
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Affiliation(s)
- Garrett R Jackson
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
| | - Alec A Warrier
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
| | - Morgan Wessels
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
| | - Zeeshan A Khan
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
| | - Obianuju Obioha
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
| | - Johnathon R McCormick
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
| | - Daniel J Kaplan
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
| | - Enzo S Mameri
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
- Instituto Brasil de Tecnologia da Saúde, Rio de Janeiro, Rio de Janeiro, Brazil
- Department of Orthopedics and Traumatology, Federal University of São Paulo (EPM-UNIFESP), São Paulo, São Paulo, Brazil
| | - Derrick M Knapik
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
- Department of Orthopaedic Surgery, Washington University and Barnes-Jewish Orthopedic Center, Chesterfield, Missouri, USA
| | - Nikhil N Verma
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
| | - Jorge Chahla
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
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15
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Lee DR, Lu Y, Reinholz AK, Till SE, Lamba A, Saris DBF, Camp CL, Krych AJ. Root Repair Has Superior Radiological and Clinical Outcomes Than Partial Meniscectomy and Nonoperative Treatment in the Management of Meniscus Root Tears: A Systematic Review. Arthroscopy 2024:S0749-8063(24)00152-X. [PMID: 38401664 DOI: 10.1016/j.arthro.2024.02.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 02/04/2024] [Accepted: 02/15/2024] [Indexed: 02/26/2024]
Abstract
PURPOSE To compile and analyze structural and clinical outcomes after meniscus root tear treatment as currently described in the literature. METHODS A review was conducted to identify studies published since 2011 on efficacy of repair, meniscectomy, and nonoperative management in the treatment of meniscus root tears. Patient cohorts were grouped into treatment categories, with medial and lateral root tears analyzed separately; data were collected on patient demographics, structural outcomes including joint space width, degree of medial meniscal extrusion, progression to total knee arthroplasty, and patient-reported outcome measures. Risk of bias was assessed using the MINORS (methodological index for non-randomized studies) criteria. Heterogeneity was measured using the I-statistic, and outcomes were summarized using forest plots without pooled means. RESULTS The 56 included studies comprised a total of 3,191 patients. Mean age among the included studies ranged from 24.6 to 65.6 years, whereas mean follow-up ranged from 12 to 125.9 months. Heterogeneity analysis identified significant differences between studies. Change in joint space width ranged from -2.4 to -0.6 mm (i.e., decreased space) after meniscectomy (n = 186) and -0.9 to -0.1 mm after root repair (n = 209); change in medial meniscal extrusion ranged from -0.6 to 6.5 mm after root repair (n = 521) and 0.2 to 4.2 mm after meniscectomy (n = 66); and event rate for total knee arthroplasty ranged from 0.00 to 0.22 after root repair (n = 205), 0.35 to 0.60 after meniscectomy (n = 53), and 0.27 to 0.35 after nonoperative treatment (n = 93). Root repair produced the greatest numerical increase in International Knee Documentation Committee and Lysholm scores of the 3 treatment arms. In addition, root repair improvements in Knee Injury and Osteoarthritis Outcome Score Pain (range: 22-32), Sports and Recreational Activities (range: 23-36), Quality of Life (range: 22-42), and Symptoms subscales (range: 10-19), in studies with low risk of bias. CONCLUSIONS The literature reporting on the treatment of meniscus root tears is heterogenous and largely limited to Level III and IV studies. Current evidence suggests root repair may be the most effective treatment strategy in lessening joint space narrowing of the knee and producing improvements in patient-reported outcomes. LEVEL OF EVIDENCE Level IV, systematic review of Level II-IV studies.
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Affiliation(s)
- Dustin R Lee
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, U.S.A
| | - Yining Lu
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, U.S.A
| | - Anna K Reinholz
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, U.S.A
| | - Sara E Till
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, U.S.A
| | - Abhinav Lamba
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, U.S.A
| | - Daniel B F Saris
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, U.S.A
| | - Christopher L Camp
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, U.S.A
| | - Aaron J Krych
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, U.S.A..
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Dzidzishvili L, Allende F, Allahabadi S, Mowers CC, Cotter EJ, Chahla J. Increased Posterior Tibial Slope Is Associated With Increased Risk of Meniscal Root Tears: A Systematic Review. Am J Sports Med 2024:3635465231225981. [PMID: 38362610 DOI: 10.1177/03635465231225981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
BACKGROUND While increased posterior tibial slope (PTS) is an established risk factor for anterior cruciate ligament tears, the association between tibial slope and meniscal posterior root tears is not well-defined. PURPOSE To summarize the available literature evaluating the association between PTS and meniscus root injuries compared with patients without root tears. STUDY DESIGN Systematic review; Level of evidence, 4. METHODS A literature search was performed using the Scopus, PubMed, and Embase databases. Human clinical studies evaluating the associations between the medial tibial slope (MTS), lateral tibial slope (LTS), lateral-to-medial (L-to-M) slope asymmetry, and the risk of meniscus root tears were included. Patients with medial meniscus posterior root tears (MMPRTs) and lateral meniscus posterior root tears (LMPRTs) were compared with a control group without root injury. Study quality was assessed using the methodological index for non-randomized studies criteria. RESULTS Ten studies with 1313 patients were included (884 patients with root tears; 429 controls). The LMPRT subgroup (n = 284) had a significantly greater LTS (mean ± SD, 7.3°± 1.5° vs 5.7°± 3.91°; P < .001), MTS (5.26°± 1.2° vs 4.8°± 1.25°; P < .001), and increased L-to-M asymmetry (2.3°± 1.3° vs 0.65°± 0.5°; P < .001) compared with controls. The MMPRT group (n = 600) had significantly increased MTS relative to controls (8.1°± 2.5° vs 4.3°± 0.7°; P < .001). Furthermore, there was a higher incidence of noncontact injuries (79.3%) and concomitant ramp lesions (56%) reported in patients with LMPRT. CONCLUSION Increased MTS, LTS, and L-to-M slope asymmetry are associated with an increased risk of LMPRTs, while increased MTS is associated with MMPRTs. Surgeons should consider how proximal tibial anatomy increases the risk of meniscus root injury.
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Affiliation(s)
- Lika Dzidzishvili
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
- Midwest Orthopaedics at Rush, Chicago, Illinois, USA
| | - Felicitas Allende
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
- Midwest Orthopaedics at Rush, Chicago, Illinois, USA
| | - Sachin Allahabadi
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
- Midwest Orthopaedics at Rush, Chicago, Illinois, USA
| | - Colton C Mowers
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
- Midwest Orthopaedics at Rush, Chicago, Illinois, USA
| | - Eric J Cotter
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
- Midwest Orthopaedics at Rush, Chicago, Illinois, USA
| | - Jorge Chahla
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois, USA
- Midwest Orthopaedics at Rush, Chicago, Illinois, USA
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Tamura M, Furumatsu T, Yokoyama Y, Higashihara N, Kawada K, Ozaki T. Superior outcomes of pullout repairs for medial meniscus posterior root tears in partial tear compared to complete radial tear. Knee Surg Relat Res 2024; 36:8. [PMID: 38331953 PMCID: PMC10854085 DOI: 10.1186/s43019-023-00206-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 12/15/2023] [Indexed: 02/10/2024] Open
Abstract
PURPOSE To reveal the outcomes of partial medial meniscus posterior root tears following transtibial pullout repair compared with the outcomes of complete radial meniscus posterior root tears. MATERIALS AND METHODS We retrospectively evaluated 15 consecutive patients (male/female, 5/10; average age, 64.4 years) who underwent transtibial pullout repair for partial medial meniscus posterior root tears and compared their results with those of 86 consecutive patients who underwent the same surgery for complete medial meniscus posterior root tears. All patients underwent second-look arthroscopy on average 1 year postoperatively, and a semi-quantitative meniscal healing score (anteroposterior width, stability, and synovial coverage, total 10 points) was evaluated. Medial meniscus extrusion was evaluated preoperatively and at second-look arthroscopy. RESULTS Postoperative clinical scores were not significantly different in the short term. However, second-look arthroscopy revealed a significant difference in repaired meniscal stability (partial tear; 3.3 points, complete tear; 2.3 points, p < 0.001) and total meniscal healing scores (partial tear; 8.3 points, complete tear; 7.1 points, p < 0.001). Medial meniscus extrusion progression was significantly different (partial tear; 0.4 mm, complete tear; 1.0 mm, p < 0.001). CONCLUSION Partial medial meniscus posterior root tears showed better meniscal healing and less medial meniscus extrusion progression following pullout repair than complete medial meniscus posterior root tears.
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Affiliation(s)
- Masanori Tamura
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Takayuki Furumatsu
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan.
| | - Yusuke Yokoyama
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Naohiro Higashihara
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Koki Kawada
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
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Severyns M, Zot F, Harika-Germaneau G, Germaneau A, Herpe G, Naudin M, Valle V, Danion J, Vendeuvre T. Extrusion and meniscal mobility evaluation in case of ramp lesion injury: a biomechanical feasibility study by 7T magnetic resonance imaging and digital volume correlation. Front Bioeng Biotechnol 2024; 11:1289290. [PMID: 38249805 PMCID: PMC10796713 DOI: 10.3389/fbioe.2023.1289290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 12/11/2023] [Indexed: 01/23/2024] Open
Abstract
Introduction: The existing body of literature on the biomechanical implications of ramp lesions is limited, leaving a significant gap in our understanding of how these lesions impact joint kinematics and loading in the medial compartment. This cadaveric biomechanical study aims to address this gap by employing an innovative Digital Volume Correlation (DVC) method, utilizing 7 Tesla Magnetic Resonance Imaging (MRI) images under various loading conditions. The primary objective is to conduct a comprehensive comparison of medial meniscal mobility between native knees and knees affected by grade 4 ramp lesions. By focusing on the intricate dynamics of meniscal mobility and extrusion, this work seeks to contribute valuable insights into the biomechanical consequences of medial meniscus ramp lesions. Materials and methods: An initial set of 7T MRI imaging sessions was conducted on two intact native knees, applying load values up to 1500N. Subsequently, a second series of images was captured on these identical knees, with the same loads applied, following the creation through arthroscopy of medial meniscus ramp lesions. The application of DVC enabled the precise determination of the three components of displacement and spatial variations in the medial menisci, both with and without ramp lesions. Results: The measured directional displacements between native knees and injured knees indicate that, following the application of axial compression load, menisci exhibit increased extrusion and posterior mobility as observed through DVC. Discussion: Injuries associated with Subtype 4 medial meniscus ramp lesions appear to elevate meniscal extrusion and posterior mobility during axial compression in the anterior cruciate ligament of intact knees. Following these preliminary results, we plan to expand our experimental approach to encompass individuals undergoing weight-bearing MRI. This expansion aims to identify meniscocapsular and/or meniscotibial insufficiency or rupture in patients, enabling us to proactively reduce the risk of osteoarthritic progression.
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Affiliation(s)
- M. Severyns
- Institut Pprime UPR 3346, Centre National de Recherche Scientifique–Université de Poitiers–ISAE-ENSMA, Poitiers, France
- Department of Orthopaedic Surgery and Traumatology, Clinique Porte Océane, Les Sables d’Olonne, France
| | - F. Zot
- Institut Pprime UPR 3346, Centre National de Recherche Scientifique–Université de Poitiers–ISAE-ENSMA, Poitiers, France
| | - G. Harika-Germaneau
- Unité de Recherche Clinique Pierre Deniker, CH Henri Laborit, Centre de Recherches sur la Cognition et l’Apprentissage UMR 7295, Centre National de Recherche Scientifique–Université de Poitiers, Poitiers, France
| | - A. Germaneau
- Institut Pprime UPR 3346, Centre National de Recherche Scientifique–Université de Poitiers–ISAE-ENSMA, Poitiers, France
| | - G. Herpe
- CHU de Poitiers, Department of Radiology, LabCom I3M Centre National de Recherche Scientifique–Siemens Healthineers, LMA, UMRCNRS 7348, Université de Poitiers, Poitiers, France
| | - M. Naudin
- CHU de Poitiers, Department of Radiology, LabCom I3M Centre National de Recherche Scientifique–Siemens Healthineers, LMA, UMRCNRS 7348, Université de Poitiers, Poitiers, France
| | - V. Valle
- Institut Pprime UPR 3346, Centre National de Recherche Scientifique–Université de Poitiers–ISAE-ENSMA, Poitiers, France
| | - J. Danion
- CHU de Poitiers, ABS Lab, Poitiers, France
| | - T. Vendeuvre
- Institut Pprime UPR 3346, Centre National de Recherche Scientifique–Université de Poitiers–ISAE-ENSMA, Poitiers, France
- CHU de Poitiers, Department of Orthopaedic Surgery and Traumatology, Poitiers, France
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19
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Husen M, Poudel K, Wang A, Saul D, Stuart MJ, Levy BA, Saris DBF, Krych AJ. Survivorship of 157 Arthroscopic Meniscal Allograft Transplants Using Bone Fixation at a Mean of 7 Years and Prognostic Factors Analysis. Am J Sports Med 2024; 52:96-108. [PMID: 38164687 DOI: 10.1177/03635465231212667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
BACKGROUND Meniscal allograft transplantation (MAT) is an accepted and effective treatment option in the context of unsalvageable menisci, particularly in young and active patients. It has been shown to reduce pain and improve knee function in previously symptomatic patients. However, there is still limited knowledge about the long-term survival rates of allografts, the durability of clinical results, and the influence of patient-specific parameters, such as leg alignment, tibial slope, and preoperative International Cartilage Regeneration & Joint Preservation Society (ICRS) grade. PURPOSE To determine (1) the long-term clinical success rate after MAT with bony fixation in a large, single-center cohort of consecutive patients, and (2) if patient-specific and procedural variables influence the clinical, anatomic, and subjective outcomes and risk of failure. STUDY DESIGN Case-control study; Level of evidence, 3. METHODS Data on 185 consecutive knees undergoing MAT in a single institution were prospectively collected and screened for inclusion in this study. The minimum follow-up time was 2 years. Radiographic variables (ICRS grade and Kellgren-Lawrence grade) were assessed preoperatively and at follow-up. Subjective patient-reported outcome measures (PROMs) (Lysholm score, Knee injury and Osteoarthritis Outcome Score [KOOS] including subscores, International Knee Documentation Committee [IKDC] score, and visual analog scale [VAS] score) were collected preoperatively and at follow-up. Clinical failure was defined as revision surgery due to graft failure or conversion to total knee arthroplasty. Anatomic failure was considered a tear covering >20% of the allograft, any peripheral tear, and unstable peripheral fixation leading to dislocation of the graft. Subjective failure was defined as Lysholm score ≤65. Preoperative tibial slope and leg alignment were assessed. Survival analyses were performed using the Kaplan-Meier estimate. Univariate and multivariate analyses were performed to determine risk factors for clinical and anatomic failure. RESULTS A total of 157 knees met inclusion criteria. After a mean follow-up time of 7 ± 3.5 years, 127 (80.9%) knees were free of clinical, anatomic, and subjective failure. Fourteen (8.9%) knees experienced clinical failure, 26 (16.6%) knees were identified as having experienced anatomic failure, and 13 (8.3%) patients experienced subjective failure with a reported Lysholm score of ≤65 at a mean follow-up of 7 years. Concurrent osteochondral allograft transplantation was identified as a predictor of both clinical (hazard ratio [HR], 4.55; 95% CI, 1.46-14.17; P = .009) and anatomic (HR, 3.05; 95% CI, 1.34-6.92; P = .008) failure. Cartilage damage of ICRS grade 3 or 4 of the index compartment conveyed an increased risk for clinical (HR, 3.41; 95% CI, 1.05-11.01; P = .04) and anatomic (HR, 3.04; 95% CI, 1.31-7.11; P = .01) failure. High-grade cartilage damage preoperatively (HR, 10.67; 95% CI, 1.037-109.768; P = .046), patient age >25 years (HR, 5.44; 95% CI, 0.120-246.070; P = .384), and a body mass index >30 (HR, 2.24; 95% CI, 0.748-6.705; P = .149) were associated with subjective failure. PROMs including KOOS and IKDC were significantly improved at final follow-up compared with preoperative scores across all measurements (P < .005). CONCLUSION MAT showed good to excellent clinical results at a mean follow-up of 7 years. Low ICRS lesion grade was associated with a higher clinical and anatomic survival rate. Patients with concurrent OCA transplantation are at a higher risk of clinical and anatomic failure, but still report significantly improved PROMs. These results suggest that MAT has a lasting beneficial effect both in isolation and in complex cases with ≥1 concurrent procedures.
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Affiliation(s)
- Martin Husen
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
- Department of Orthopaedics, Heidelberg University Hospital, Heidelberg, Germany
| | - Keshav Poudel
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Allen Wang
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Dominik Saul
- Kogod Center on Aging and Division of Endocrinology, Mayo Clinic, Rochester, Minnesota, USA
- Department of Trauma and Reconstructive Surgery, Eberhard Karls University Tübingen, BG Trauma Center Tübingen, Tübingen, Germany
| | - Michael J Stuart
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Bruce A Levy
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Daniël B F Saris
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Aaron J Krych
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
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20
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Shimozaki K, Nakase J, Kanayama T, Yanatori Y, Oshima T, Asai K, Shima Y, Tsuchiya H. Ultrasonographic diagnosis of medial meniscus posterior root tear in early knee osteoarthritis: a comparative study. Arch Orthop Trauma Surg 2024; 144:281-287. [PMID: 37750911 DOI: 10.1007/s00402-023-05068-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 09/03/2023] [Indexed: 09/27/2023]
Abstract
INTRODUCTION This study aimed to detect medial meniscal posterior root tear (MMPRT) diagnostic methods with high sensitivity and specificity using dynamic ultrasonographic evaluation in patients with early knee osteoarthritis (OA) and demonstrate the usefulness of dynamic ultrasonographic medial meniscal extrusion (MME) evaluation in MMPRT diagnosis using a cutoff value. MATERIALS AND METHODS Between 2018 and 2020, a total of 120 patients were diagnosed with early knee OA using clinical and radiographic findings. Dynamic ultrasonographic evaluations and magnetic resonance imaging were performed in all patients, and 47 patients who had and 73 patients who did not have MMPRT were classified into the MMPRT and non-MMPRT groups, respectively. Age, sex, femorotibial angle, MME of knee extension and flexion, and MME at weight-bearing were compared between the two groups. Additionally, the sensitivity and specificity of significant ultrasonographic findings were calculated using a receiver operating characteristic (ROC) curve. RESULTS The MMEs under knee extension-flexion and weight-loading in the MMPRT group were significantly larger than those in the non-MMPRT group. ROC curve analysis for each ultrasonographic evaluation condition to diagnose MMPRT indicated that the sensitivity was 72-88% and the specificity was 66-85% when the cutoff values of MME under knee flexion at 0°, 90°, and weight-loading were set at 2.55 mm, 2.00 mm, and 3.55 mm, respectively. The highest sensitivity (88%) and specificity (85%) were exhibited upon > 2 mm MME at a knee flexion of 90° and were the most useful indicators for MME diagnosis. CONCLUSIONS Ultrasonographic MME evaluations for MMPRT diagnosis showed relatively high sensitivity and specificity in patients with early knee OA. Dynamic ultrasonographic MME evaluation may lead to appropriate additional examinations, early diagnosis, and intervention for MMPRT in patients with early knee OA.
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Affiliation(s)
- Kengo Shimozaki
- Department of Orthopedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-Machi, Kanazawa-Shi, Ishikawa-Ken, 920-8641, Japan
| | - Junsuke Nakase
- Department of Orthopedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-Machi, Kanazawa-Shi, Ishikawa-Ken, 920-8641, Japan.
| | - Tomoyuki Kanayama
- Department of Orthopedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-Machi, Kanazawa-Shi, Ishikawa-Ken, 920-8641, Japan
| | - Yusuke Yanatori
- Department of Orthopedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-Machi, Kanazawa-Shi, Ishikawa-Ken, 920-8641, Japan
| | - Takeshi Oshima
- Department of Orthopedic Surgery, Asanogawa General Hospital, Kanazawa, Japan
| | - Kazuki Asai
- Department of Orthopedic Surgery, KKR Hokuriku Hospital, Kanazawa, Japan
| | - Yosuke Shima
- Department of Orthopedic Surgery, KKR Hokuriku Hospital, Kanazawa, Japan
| | - Hiroyuki Tsuchiya
- Department of Orthopedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-Machi, Kanazawa-Shi, Ishikawa-Ken, 920-8641, Japan
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Amano Y, Ozeki N, Matsuda J, Nakamura T, Nakagawa Y, Sekiya I, Koga H. Augmentation of a Nonanatomical Repair of a Medial Meniscus Posterior Root Tear With Centralization Using Three Knotless Anchors May Be Associated With Less Meniscal Extrusion and Better Compressive Load Distribution in Mid-Flexion Compared With Non-Anatomical Root Repair Alone in a Porcine Knee Model. Arthroscopy 2023; 39:2487-2498.e4. [PMID: 37142135 DOI: 10.1016/j.arthro.2023.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 04/08/2023] [Accepted: 04/14/2023] [Indexed: 05/06/2023]
Abstract
PURPOSE To investigate the biomechanics of the centralization augmentation using knotless soft anchors to a nonanatomical transtibial pull-out root repair in a porcine medial meniscus posterior root tear (MMPRT) model. METHODS Porcine knee joints (N = 10) were used to perform one of the following procedures: (1) intact; (2) MMPRT; (3) nonanatomical root repair; (4) nonanatomical root repair with centralization using 2 anchors: anchors were inserted at the posterior medial collateral ligament (MCL) border and 10 mm anterior to the posterior MCL border; and (5) nonanatomical root repair with centralization using 3 anchors: another anchor was placed 10 mm posterior to the posterior MCL border. Contact area on the medial meniscus (MM), contact pressure in the MM and tibial cartilage, and MM extrusion were evaluated at 30°, 45°, 60°, and 90° knee flexions under 200 N compressive force. RESULTS MM extrusion at the posterior MCL border was significantly reduced after root repair with centralization using 3 anchors than after root repair alone at 30° (-0.063 mm vs 1.5 mm, P = .017), 45° (0.21 mm vs 1.7 mm, P = .018), and 60° (0.78 mm vs 2.3 mm, P = .019). There were no significant differences in MM extrusion between the root repair alone and root repair with centralization using 2 anchors at all flexion angles. The contact area in the middle and posterior MM was significantly greater after centralization with 3 anchors than after root repair alone at all flexion angles (except the posterior MM at 90°). The mean contact pressure in the tibial cartilage was significantly lower after centralization with 3 anchors than after root repair at all angles. CONCLUSIONS Augmentation of a nonanatomical repair of a medial meniscus posterior root tear with centralization using three knotless anchors may be associated with less meniscal extrusion and better compressive load distribution between 30° and 60° flexion compared with nonanatomical root repair alone in a porcine model. CLINICAL RELEVANCE This biomechanical study at time zero suggests that the addition of centralization using 3 knotless anchors may reduce MM extrusion and restore the load-distributing function of the MM.
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Affiliation(s)
- Yusuke Amano
- Department of Joint Surgery and Sports Medicine, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
| | - Nobutake Ozeki
- Center for Stem Cell and Regenerative Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Junpei Matsuda
- Center for Stem Cell and Regenerative Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tomomasa Nakamura
- Department of Joint Surgery and Sports Medicine, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yusuke Nakagawa
- Department of Joint Surgery and Sports Medicine, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
| | - Ichiro Sekiya
- Center for Stem Cell and Regenerative Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hideyuki Koga
- Department of Joint Surgery and Sports Medicine, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan.
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LaPrade RF, LaPrade CM, Kennedy NI. Editorial Commentary: Meniscal Extrusion. Arthroscopy 2023; 39:2499-2501. [PMID: 37981390 DOI: 10.1016/j.arthro.2023.06.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 06/15/2023] [Indexed: 11/21/2023]
Abstract
With the improved recognition of meniscal root tears over the past decade, it has become clear that root repairs are necessary in most patients indicated for a repair to prevent the further progression of osteoarthritis. Root repairs are cost beneficial to and prevent the early need for a total knee arthroplasty. As further postoperative follow-up occurs for root repairs, we have found that most patients have significantly improved patient-reported outcomes, while it is still clear that further clinical outcome study as well as further refinement of surgical technique is necessary. The next thing that we have to investigate is how to prevent recurrent meniscal extrusion after a root repair. Nonanatomic repair significantly alters tibiofemoral biomechanics and results in notably increased meniscal extrusion. In contrast, biomechanical studies show anatomic repair of the meniscus attachment within 1 cm of the meniscus attachment site restores joint loading close to normal.
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Hoshikawa A, Nakamura H, Takei R, Matsumoto R, Saita K. Figure-4 Patient Positioning Increases Medial Meniscus Extrusion on Ultrasound in Patients With Posterior Medial Meniscus Root Tears of the Knee. Arthrosc Sports Med Rehabil 2023; 5:100818. [PMID: 38034026 PMCID: PMC10682546 DOI: 10.1016/j.asmr.2023.100818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 09/28/2023] [Indexed: 12/02/2023] Open
Abstract
Purpose To compare the degree of medial meniscal extrusion (MME) between knees with medial meniscus posterior root tear (MMPRT) and degenerative tears of the medial meniscus using ultrasonography (US) in different limb positions and to identify the findings characteristic of MMPRT. Methods The study group comprised 25 subjects with MMPRT (group RT), 25 subjects with degenerative medial meniscal tears (group D), and 25 knees with no abnormalities of the medial meniscus (MM) on magnetic resonance imaging (MRI) (group C) whose age was ≥40 years. MME was evaluated using US in the supine, figure-4, feet-dangling, and standing positions. The MME was evaluated by the actual measurement values and the relative values to the MME in the supine position. The differences in the MME among the 3 groups in each limb position were analyzed using one-way analysis of variance. P < .05 was considered significant. Results The actual MME values were largest in group RT in all 4 limb positions. When changing the limb position from the supine to the figure-4, the actual MME increased from 3.8 ± 0.8 mm to 5.5 ± 1.3 mm in group RT, whereas it decreased from 3.4 ± 1.1 mm to 1.8 ± 1.2 mm in group D, showing the most significant difference in MME of the figure-4 position between the 2 groups (P < .001). In group RT, 88% of knees had the maximum MME in the figure-4 position. In group D, 60% of knees had the maximum MME in the standing position and only 2 knees (8%) had the maximum MME in the figure-4 position. Conclusions The increase in MME from the supine to the figure-4 position was a characteristic finding of MMPRT but not degenerative tears. Level of Evidence Level III, case-control study.
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Affiliation(s)
- Atsuto Hoshikawa
- Department of Orthopaedic Surgery, Tohto Bunkyo Hospital, Tokyo, Japan
- Department of Orthopaedic Surgery, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Haruhiko Nakamura
- Department of Orthopaedic Surgery, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Ryota Takei
- Department of Orthopaedic Surgery, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Risa Matsumoto
- Department of Orthopaedic Surgery, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Kazuo Saita
- Department of Orthopaedic Surgery, Saitama Medical Center, Saitama Medical University, Saitama, Japan
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Takase R, Ohsawa T, Hashimoto S, Kurihara S, Yanagisawa S, Hagiwara K, Kimura M, Chikuda H. Insufficient restoration of meniscal extrusion by transtibial pullout repair for medial meniscus posterior root tears. Knee Surg Sports Traumatol Arthrosc 2023; 31:4895-4902. [PMID: 37573532 DOI: 10.1007/s00167-023-07528-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 07/26/2023] [Indexed: 08/15/2023]
Abstract
PURPOSE The long-term changes in the dynamics of the medial meniscus after transtibial pullout repair for medial meniscus posterior root tears (MMPRTs) are not completely understood. Thus, the aim of this study was to investigate the effects of transtibial pullout repair on MMPRTs and whether the effects would be sustained. METHODS Nineteen knees with MMPRTs that were treated by trans-tibial pullout repair were enrolled in this study. Medial meniscus extrusion (MME) was measured by ultrasonography during knee extension (no weight-bearing with the knee at 0° extension: NW0°) and 90° flexion (no weight-bearing with the knee at 90° flexion: NW90°) with the patient in the supine position and with full weight-bearing (FW0°) preoperatively and at 3 and 12 months postoperatively. The clinical outcomes were assessed using the Knee Injury and Osteoarthritis Outcome Score, Lysholm score, and International Knee Documentation Committee score. RESULTS The difference in MME with NW0° was not statistically significant between the preoperative (3.4 ± 1.0 mm) and 12-month postoperative (3.7 ± 0.6 mm) time points. The MME with NW90° at 3 (2.1 ± 0.7 mm) and 12 months (2.9 ± 0.6 mm) postoperatively were significantly lower than the preoperative values (3.4 ± 0.8 mm) (P < 0.05). However, the value significantly increased from 3 to 12 months postoperatively (P < 0.05). The MME with FW0° at 12 months postoperatively (4.3 ± 0.6 mm) was significantly larger than that at pre-operatively (3.6 ± 0.9 mm) (P < 0.05). All the patients' clinical conditions were significantly improved at 12 months postoperatively when compared to their preoperative clinical conditions. CONCLUSION Surgery did not reduce the extrusion in the no weight-bearing and weight-bearing positions at knee extension, and these values increased in the postoperative period. In addition, while the surgery reduced the extrusion in the knee flexion position, the restoration achieved by the surgery was not sustained in the long term. LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- Ryota Takase
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma, 371-8511, Japan.
| | - Takashi Ohsawa
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma, 371-8511, Japan
| | - Shogo Hashimoto
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma, 371-8511, Japan
| | - Shingo Kurihara
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma, 371-8511, Japan
| | - Shinya Yanagisawa
- Zenshukai Hospital Gunma Sports Medicine Research Center, Gunma, Japan
| | - Keiichi Hagiwara
- Zenshukai Hospital Gunma Sports Medicine Research Center, Gunma, Japan
| | - Masashi Kimura
- Zenshukai Hospital Gunma Sports Medicine Research Center, Gunma, Japan
| | - Hirotaka Chikuda
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma, 371-8511, Japan
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Fukui D, Nishiyama D, Yamanaka M, Tamai H, Nishio N, Kawakami M, Yamada H. Development of a Novel Rat Knee Osteoarthritis Model Induced by Medial Meniscus Extrusion. Cartilage 2023:19476035231205680. [PMID: 37837194 DOI: 10.1177/19476035231205680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/15/2023] Open
Abstract
OBJECTIVE The medial meniscus extrusion (MME) is associated with increased stress on the knee joint, which leads to cartilage degeneration. To evaluate the etiology of knee osteoarthritis, it is extremely important to create animal models of the disease that more closely resemble actual clinical conditions in terms of symptomatology, molecular biology, and histology. This study aimed to create a clinically relevant model of MME in rats. DESIGN Behavioral, molecular biological, and histological changes in the newly developed rat MME model were compared with those in sham and medial meniscus transection and medial collateral ligament transection (MMT) models to examine the characteristics of this model. RESULTS In the MME rat model, behavioral evaluation shows abnormalities in gait compared with the other 2 groups, and molecular biological evaluation of the infrapatellar synovia of rats shows that gene expression of inflammatory cytokines, matrix-degrading enzymes, and pain-related nerve growth factor was increased compared with the sham group. Furthermore, histological evaluation reveals that cartilage degeneration was the most severe in the MME group. CONCLUSIONS The newly developed MME model reproduced the characteristic pathology of MME in clinical practice, such as severe pain, inflammation, and rapid progression of osteoarthritis. The MME model, which might more closely mimic human knee osteoarthritis (OA), could be a useful model for elucidating the pathophysiology and considering therapeutic management for knee OA.
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Affiliation(s)
- Daisuke Fukui
- Department of Orthopedic Surgery, Wakayama Medical University, Wakayama, Japan
| | - Daisuke Nishiyama
- Department of Orthopedic Surgery, Wakayama Medical University, Wakayama, Japan
| | - Manabu Yamanaka
- Department of Orthopedic Surgery, Wakayama Medical University, Wakayama, Japan
| | - Hidenobu Tamai
- Department of Orthopedic Surgery, Wakayama Medical University, Wakayama, Japan
| | - Naoko Nishio
- Department of Orthopedic Surgery, Wakayama Medical University, Wakayama, Japan
| | - Mamoru Kawakami
- Department of Orthopedic Surgery, Saiseikai Wakayama Hospital, Wakayama, Japan
| | - Hiroshi Yamada
- Department of Orthopedic Surgery, Wakayama Medical University, Wakayama, Japan
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Kawada K, Furumatsu T, Tamura M, Xue H, Higashihara N, Kintaka K, Yokoyama Y, Ozaki T. Time-Dependent Increase in Medial Meniscus Extrusion Predicts the Need for Meniscal Repair in Patients with Partial Medial Meniscus Posterior Root Tears: A Case-Control Study. Indian J Orthop 2023; 57:1633-1639. [PMID: 37766949 PMCID: PMC10519898 DOI: 10.1007/s43465-023-00987-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 08/24/2023] [Indexed: 09/29/2023]
Abstract
Purpose This study aimed to compare medial meniscus extrusion (MME) in patients with partial medial meniscus posterior root tears (MMPRTs) through magnetic resonance imaging (MRI) conducted at two-time points and to determine whether patient characteristics or MME measurements differ in patients who respond to nonoperative treatment compared with those who require surgical treatment. Methods Thirty-seven patients with partial MMPRTs underwent two MRI scans during nonoperative management or before pull-out repair. Among these, 17 patients received nonoperative management, and 20 underwent pull-out repair. Partial MMPRTs were diagnosed based on the MRI findings. MME measurements were performed on both MRI scans. Statistical and receiver operating curve (ROC) analyses were performed. Results The duration between the two MRI scans was significantly shorter in the pull-out repair group than in the nonoperative management group. The increase in MME (ΔMME) on MRI scans was significantly greater in the pull-out repair group than in the nonoperative management group. Linear regression analysis revealed a weak correlation between the MRI interval and ΔMME in the nonoperative management group and a moderate correlation in the pull-out repair group. In the ROC construction, the cut-off value for ΔMME that requires surgical intervention was 0.41 mm, with a sensitivity and specificity of 85.0% and 52.9%, respectively. Conclusion Patients with partial MMPRTs requiring surgical treatment had greater MME progression in a shorter time and a time-dependent increase in MME. Therefore, a ΔMME of ≥ 0.41 mm may be useful in deciding surgical intervention based on MRI retests. Level of evidence III.
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Affiliation(s)
- Koki Kawada
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558 Japan
| | - Takayuki Furumatsu
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558 Japan
| | - Masanori Tamura
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558 Japan
| | - Haowei Xue
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558 Japan
| | - Naohiro Higashihara
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558 Japan
| | - Keisuke Kintaka
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558 Japan
| | - Yusuke Yokoyama
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558 Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558 Japan
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Choi BS, Chung J, Kwak J, Han HS. Subchondral insufficiency fracture is a predictive factor of osteoarthritis progression and conversion to arthroplasty in non-surgically treated medial meniscus root tear. Knee Surg Sports Traumatol Arthrosc 2023; 31:4492-4500. [PMID: 37195475 DOI: 10.1007/s00167-023-07444-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 04/26/2023] [Indexed: 05/18/2023]
Abstract
PURPOSE To investigate the radiographic and clinical outcomes of non-surgical treatment for medial meniscus posterior root tear (MMPRT), and prognostic factors for osteoarthritis (OA) progression and clinical failure. METHODS A prospectively collected database was retrospectively reviewed for patients who were diagnosed with acute medial meniscus posterior root tear (MMPRT) between 2013 and 2021 and treated non-surgically for more than 2 years. Patient demographic characteristics and clinical outcomes including pain numeric rating scale (NRS), International Knee Documentation Committee (IKDC) subjective score, Lysholm score, and Tegner activity scale were evaluated. For radiographic evaluation, knee radiographs were obtained to assess the angle of knee alignment and Kellgren-Lawrence (K-L) grade during the first and annually follow-up visits. Baseline magnetic resonance (MR) images were reviewed for the presence of medial meniscus extrusion, bone marrow edema, subchondral insufficiency fracture of medial femoral condyle, and cartilage lesion. The OA progression group was defined as patients who experienced a worsening of one or more grades in the K-L classification system. Prognostic factors were evaluated for OA progression and conversion to total knee arthroplasty (TKA). RESULTS Ninety-four patients (90 female and 4 male) with a mean age of 67.0 ± 7.3 years (range, 53-83 years) were followed for a mean of 46.1 ± 22.1 months (range, 24.1-170.5). During the follow-up period, no significant differences in clinical scores were observed, and there were also no significant differences between the groups with and without OA progression. Overall, 12 patients (13%) underwent TKA at a mean of 20.7 ± 16.5 months (range, 8-69 months) and 34 patients (36%) demonstrated OA progression at a mean time of 24 ± 15 months (range, 12-62). The subchondral insufficiency fracture was a prognostic factor for OA progression (p = 0.045 for knee radiograph and p = 0.019 for MR) and conversion to TKA (RR, 4.08 [95% CI 1.23-13.57]; p = 0.022). CONCLUSIONS Non-surgical treatment for acute medial meniscus posterior root tear did not result in any significant change in clinical outcomes from the initial to the final follow-up. The rate of conversion to arthroplasty was 13%, and the rate of osteoarthritis progression was 36%. Furthermore, subchondral insufficiency fracture was found to be a concomitant prognostic factor correlated with OA progression and conversion to arthroplasty. This information can provide insights for physicians when discussing treatment options with patients, particularly regarding the use of non-surgical treatment and may contribute as a source for future studies of medial meniscus posterior root tear. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Byung Sun Choi
- Department of Orthopaedic Surgery, Seoul National University Hospital, 101 Daehak-Ro Jongno-Gu, Seoul, 03080, Republic of Korea
| | - Jeehyeok Chung
- Department of Orthopaedic Surgery, Seoul National University Hospital, 101 Daehak-Ro Jongno-Gu, Seoul, 03080, Republic of Korea
| | - Junpyo Kwak
- Department of Orthopaedic Surgery, Seoul National University Hospital, 101 Daehak-Ro Jongno-Gu, Seoul, 03080, Republic of Korea
| | - Hyuk-Soo Han
- Department of Orthopaedic Surgery, Seoul National University Hospital, 101 Daehak-Ro Jongno-Gu, Seoul, 03080, Republic of Korea.
- Department of Orthopaedic Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea.
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Oladeji LO, Reynolds G, Nuelle CW, DeFroda SF. Securing the Root: Meniscus Root Repair with Rip Stop and Cannulated Drilling. Arthrosc Tech 2023; 12:e1665-e1672. [PMID: 37942109 PMCID: PMC10627872 DOI: 10.1016/j.eats.2023.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 05/27/2023] [Indexed: 11/10/2023] Open
Abstract
Meniscal root pathology has garnered increased attention over the past decade. Meniscal root tears are considered to essentially represent a meniscus-deficient state, which has led to a rise in the surgical fixation of this pathology. Meniscus root tears are classified as either radial tears within 1 cm of the root insertion, or a direct avulsion of meniscal root. These injuries are important to recognize because they contribute to impaired joint mechanics and rapid articular cartilage degeneration. Given this, there remains significant interest in identifying novel surgical techniques that may facilitate better surgical repair and enhance patient outcomes. The purpose of this technical note is to describe a surgical technique for a medial meniscus root ripstop repair with cannulated drilling. This technique is simple and reproducible, while also allowing for the augmentation of potentially poor tissue quality.
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Affiliation(s)
- Lasun O. Oladeji
- Department of Orthopaedic Surgery, University of Missouri Columbia, Columbia, Missouri, USA
| | - Grace Reynolds
- Department of Orthopaedic Surgery, University of Missouri Columbia, Columbia, Missouri, USA
| | - Clayton W. Nuelle
- Department of Orthopaedic Surgery, University of Missouri Columbia, Columbia, Missouri, USA
| | - Steven F. DeFroda
- Department of Orthopaedic Surgery, University of Missouri Columbia, Columbia, Missouri, USA
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Kawada K, Furumatsu T, Tamura M, Xue H, Higashihara N, Kintaka K, Yokoyama Y, Ozaki T. Medial joint space narrowing progresses after pullout repair of medial meniscus posterior root tear. INTERNATIONAL ORTHOPAEDICS 2023; 47:2401-2407. [PMID: 36715713 PMCID: PMC10522731 DOI: 10.1007/s00264-023-05701-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 01/13/2023] [Indexed: 01/31/2023]
Abstract
PURPOSE The extent to which arthropathic changes progress after medial meniscus posterior root tear (MMPRT) repair remains controversial. This retrospective study assessed medial joint space (MJS) narrowing progression after pullout repair for MMPRT and identified the correlating factors. METHODS We included 56 patients who underwent pullout repair for MMPRT. The MJS of the bilateral knees was assessed with radiography using the fixed-flexion view. A second-look arthroscopy was performed one year post-operatively for all patients. The baseline characteristics, clinical scores, Kellgren-Lawrence (KL) grade, and medial meniscus extrusion (MME) were identified. Statistical comparisons and correlation analyses were conducted. RESULTS The MJS narrowing width was significantly larger in MMPRT knees than in contralateral knees (0.51 ± 0.85 mm vs. 0.09 ± 0.49 mm, p < 0.001). KL grade progression was observed in 23.2% (13/56) of patients. There was a significant difference between pre- and post-operative MME values, indicating MME progression (p < 0.001). Each clinical score showed significant improvement one year post-operatively (p < 0.001). Positive correlations were found between MJS narrowing and pre-operative MJS (coefficient = 0.510, p < 0.001), rate of change in MJS (coefficient = 0.929, p < 0.001), and increase in MME (ΔMME) (coefficient = 0.506, p < 0.001). CONCLUSION Knees that underwent pullout repair for MMPRT showed progression of MJS narrowing by 0.51 mm at one year post-operatively, although clinical scores markedly improved. Correlating factors for MJS narrowing were pre-operative MJS, rate of change in MJS, and ΔMME. Preventing MME progression is essential for preventing arthropathic changes.
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Affiliation(s)
- Koki Kawada
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan
| | - Takayuki Furumatsu
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan.
- Present address: Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8558, Japan.
| | - Masanori Tamura
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan
| | - Haowei Xue
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan
| | - Naohiro Higashihara
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan
| | - Keisuke Kintaka
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan
| | - Yusuke Yokoyama
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Science, Okayama, Japan
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Migliorini F, Asparago G, Oliva F, Bell A, Hildebrand F, Maffulli N. Greater rate of return to play and re-injury following all-inside meniscal repair compared to the inside-out technique: a systematic review. Arch Orthop Trauma Surg 2023; 143:6273-6282. [PMID: 37284879 PMCID: PMC10491517 DOI: 10.1007/s00402-023-04933-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 05/25/2023] [Indexed: 06/08/2023]
Abstract
INTRODUCTION Inside-out and all-inside arthroscopic meniscal repairs are widely performed. However, it remains unclear which method promotes greater clinical outcomes. This study compared inside-out versus all-inside arthroscopic meniscal repair in terms of patient-reported outcome measures (PROMs), failures, return to play, and symptoms. METHODS This systematic review was conducted in accordance with the PRISMA guidelines. Two authors independently performed the literature search by accessing the following databases: PubMed, Google Scholar, and Scopus in February 2023. All clinical studies which investigated the outcomes of all-inside and/or inside-out meniscal repair were considered. RESULTS Data from 39 studies (1848 patients) were retrieved. The mean follow-up was 36.8 (9 to 120) months. The mean age of the patients was 25.8 ± 7.9 years. 28% (521 of 1848 patients) were women. No difference was found in PROMs: Tegner Activity Scale (P = 0.4), Lysholm score (P = 0.2), and International Knee Document Committee score (P = 0.4) among patients undergoing meniscal repair with all inside or inside-out techniques. All-inside repairs showed a greater rate of re-injury (P = 0.009) but also a greater rate of return to play at the pre-injury level (P = 0.0001). No difference was found in failures (P = 0.7), chronic pain (P = 0.05), reoperation (P = 0.1) between the two techniques. No difference was found in the rate of return to play (P = 0.5) and to daily activities (P = 0.1) between the two techniques. CONCLUSION Arthroscopic all-inside meniscal repair may be of special interest in patients with a particular interest in a fast return to sport, while, for less demanding patients, the inside-out suture technique may be recommended. High-quality comparative trials are required to validate these results in a clinical setting. LEVEL OF EVIDENCE Level III, systematic review.
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Affiliation(s)
- Filippo Migliorini
- Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH University Hospital, Pauwelsstraße 30, 52074, Aachen, Germany.
- Department of Orthopedics and Trauma Surgery, Academic Hospital of Bolzano (SABES-ASDAA), 39100, Bolzano, Italy.
- Department of Orthopaedic and Trauma Surgery, Eifelklinik St. Brigida, Simmerath, Germany.
| | - Giovanni Asparago
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84081, Baronissi, SA, Italy
| | - Francesco Oliva
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84081, Baronissi, SA, Italy
| | - Andreas Bell
- Department of Orthopaedic and Trauma Surgery, Eifelklinik St. Brigida, Simmerath, Germany
| | - Frank Hildebrand
- Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH University Hospital, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Nicola Maffulli
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84081, Baronissi, SA, Italy
- School of Pharmacy and Bioengineering, Faculty of Medicine, Keele University, ST4 7QB, Stoke On Trent, England
- Barts and the London School of Medicine and Dentistry, Centre for Sports and Exercise Medicine, Mile End Hospital, Queen Mary University of London, E1 4DG, London, England
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Kawada K, Furumatsu T, Fukuba M, Tamura M, Higashihara N, Okazaki Y, Yokoyama Y, Katayama Y, Hamada M, Ozaki T. Increased quadriceps muscle strength after medial meniscus posterior root repair is associated with decreased medial meniscus extrusion progression. BMC Musculoskelet Disord 2023; 24:727. [PMID: 37700279 PMCID: PMC10496236 DOI: 10.1186/s12891-023-06858-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 09/06/2023] [Indexed: 09/14/2023] Open
Abstract
BACKGROUND This study aimed to assess quadriceps muscle strength after medial meniscus (MM) posterior root repair and determine its relationship with clinical scores and MM extrusion (MME). METHODS Thirty patients who underwent pullout repair for MM posterior root tear and were evaluated for quadriceps muscle strength preoperatively and at 1 year postoperatively were included in this study. Quadriceps muscle strength was measured using the Locomo Scan-II instrument (ALCARE, Tokyo, Japan). MME and clinical scores (i.e., Knee Injury and Osteoarthritis Outcome Score [KOOS], International Knee Documentation Committee score, Lysholm score, Tegner score, and visual analog scale pain score) were evaluated preoperatively and at 1 year postoperatively, and second-look arthroscopy was performed at 1 year postoperatively. Wilcoxon's signed-rank test was used to compare each measure pre- and postoperatively. Pearson's correlation coefficient was used to assess the correlation with quadriceps muscle strength values. Multiple regression analysis was performed to identify factors associated with the change in MME (ΔMME). RESULTS Second-look arthroscopy confirmed continuity of the posterior root in all patients. The quadriceps muscle strength measured at 1 year postoperatively (355.1 ± 116.2 N) indicated significant improvement relative to the quadriceps muscle strength measured preoperatively (271.9 ± 97.4 N, p < 0.001). The MME at 1 year postoperatively (4.59 ± 1.24 mm) had progressed significantly relative to the MME preoperatively (3.63 ± 1.01 mm, p < 0.001). The clinical scores at 1 year postoperatively were improved significantly relative to the scores preoperatively (p < 0.001). The postoperative quadriceps muscle strength was correlated with ΔMME (correlation coefficient = -0.398, p = 0.030), and the change in quadriceps muscle strength was correlated with the KOOS-Quality of Life (correlation coefficient = 0.430, p = 0.018). Multiple regression analysis showed that the postoperative quadriceps muscle strength had a significant effect on ΔMME even when the body mass index and time from injury to surgery were included. CONCLUSIONS After MM posterior root repair, patients with greater quadriceps muscle strength showed less MME progression. In addition, patients with greater improvement in quadriceps muscle strength had better clinical scores; therefore, continued rehabilitation aimed at improving quadriceps muscle strength after MM posterior root repair is recommended. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Koki Kawada
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2‑5‑1 Shikata‑Cho, Kita‑Ku, Okayama, 700‑8558, Japan
| | - Takayuki Furumatsu
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2‑5‑1 Shikata‑Cho, Kita‑Ku, Okayama, 700‑8558, Japan.
| | - Mikao Fukuba
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2‑5‑1 Shikata‑Cho, Kita‑Ku, Okayama, 700‑8558, Japan
| | - Masanori Tamura
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2‑5‑1 Shikata‑Cho, Kita‑Ku, Okayama, 700‑8558, Japan
| | - Naohiro Higashihara
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2‑5‑1 Shikata‑Cho, Kita‑Ku, Okayama, 700‑8558, Japan
| | - Yuki Okazaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2‑5‑1 Shikata‑Cho, Kita‑Ku, Okayama, 700‑8558, Japan
| | - Yusuke Yokoyama
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2‑5‑1 Shikata‑Cho, Kita‑Ku, Okayama, 700‑8558, Japan
| | - Yoshimi Katayama
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2‑5‑1 Shikata‑Cho, Kita‑Ku, Okayama, 700‑8558, Japan
| | - Masanori Hamada
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2‑5‑1 Shikata‑Cho, Kita‑Ku, Okayama, 700‑8558, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2‑5‑1 Shikata‑Cho, Kita‑Ku, Okayama, 700‑8558, Japan
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Murphy SN, Brinkman JC, Tummala SV, Renfree SP, Kemper KJ, Economopoulos KJ. Outcomes After Meniscal Root Repair in Patients With and Without Advanced Patellofemoral Chondromalacia: Comparison at 2-Year Follow-up. Orthop J Sports Med 2023; 11:23259671231193986. [PMID: 37711507 PMCID: PMC10498705 DOI: 10.1177/23259671231193986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 04/27/2023] [Indexed: 09/16/2023] Open
Abstract
Background Meniscal root repair can improve patient outcomes significantly; however, several contraindications exist, including arthritic change to the medial or lateral tibiofemoral compartments. Purpose/Hypothesis The purpose of this study was to evaluate the outcomes of meniscal root repair in patients with advanced patellofemoral chondromalacia (PFC). It was hypothesized that the presence of advanced PFC would not significantly affect the postoperative outcomes. Study Design Cohort study; Level of evidence, 3. Methods A retrospective review was conducted of patients who underwent meniscal root repair with at least 2 years of follow-up data. Patients with chondromalacia as determined by arthroscopic visualization (defined as Outerbridge grade 3 or 4) were placed in the PFC group; patients with Outerbridge grade 0 to 2 chondromalacia were placed in the non-PFC group. Outcomes were measured by the Lysholm knee scoring scale and the International Knee Documentation Committee (IKDC) Subjective Knee Form. Clinical outcomes including complications were also recorded. Quantitative data between the groups were analyzed using the 2-tailed independent-samples t test. Results Overall, this study included 81 patients (35 in the PFC group, 46 in the non-PFC group). The mean follow-up times were 25.1 months in the PFC group and 24.8 months in the non-PFC group. In both groups, Lysholm and IKDC scores improved significantly with 24-month Lysholm scores averaging 85.86 in the PFC group and 86.61 in the non-PFC group (P = .62) and 24-month IKDC scores averaging 77.66 for the PFC group and 79.59 for the non-PFC group (P = .45). The cohorts demonstrated similar rates of retear, arthrofibrosis, infection, and progression to total knee arthroplasty. Conclusion The presence of advanced PFC was not associated with inferior outcomes in patients who underwent posterior meniscal root repair, and rates of recurrent tears, postoperative infection, arthrofibrosis, and conversion to total knee arthroplasty were similar between the study groups. These findings suggest that PFC may not significantly alter the results of meniscal root repair and should not be considered an absolute contraindication for this procedure.
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Affiliation(s)
- Sierra N. Murphy
- Mayo Clinic Alix School of Medicine–Arizona Campus, Scottsdale, Arizona, USA
| | - Joseph C. Brinkman
- Department of Orthopedic Surgery, Mayo Clinic Arizona, Phoenix, Arizona, USA
| | - Sailesh V. Tummala
- Department of Orthopedic Surgery, Mayo Clinic Arizona, Phoenix, Arizona, USA
| | - Sean P. Renfree
- University of Arizona School of Medicine, Tucson, Arizona, USA
| | - Kacey J. Kemper
- Mayo Clinic Alix School of Medicine–Arizona Campus, Scottsdale, Arizona, USA
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Krych AJ, Lamba A, Wang AS, Boos AM, Camp CL, Levy BA, Stuart MJ, Hevesi M. Nonoperative Management of Degenerative Medial Meniscus Posterior Root Tears: Poor Outcomes at a Minimum 10-Year Follow-up. Am J Sports Med 2023; 51:2603-2607. [PMID: 37434486 DOI: 10.1177/03635465231185132] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/13/2023]
Abstract
BACKGROUND Medial meniscus posterior root tears (MMPRTs) cause pain and dysfunction and are associated with poor clinical outcomes with nonoperative management at short-term follow-up. However, little is known about the long-term natural history of these tears. PURPOSE The purpose of this study was to (1) provide an update to a previous minimum 2-year study on the natural progression of these tears and (2) evaluate long-term patient-reported and radiographic outcomes. STUDY DESIGN Case series (prognosis); Level of evidence, 4. METHODS A retrospective review was performed on a cohort of patients with untreated MMPRTs, diagnosed between 2005 and 2013, who were followed clinically using International Knee Documentation Committee (IKDC), visual analog scale for pain, and Tegner activity scores as well as radiographically at a minimum 10-year follow-up. Failure was defined as conversion to arthroplasty or a severely abnormal subjective IKDC score <75.4. RESULTS Overall, 5 (10%) of the original 52 patients with minimum 2-year outcomes were subsequently lost to follow-up. The remaining 47 patients (21 male, 26 female) were followed for a mean of 14 ± 2 years (range, 11-18 years). At final follow-up, 25 patients (53%) had progressed to total knee arthroplasty, 8 (17%) were deceased, and 14 (30%) had not progressed to total knee arthroplasty. The mean IKDC and Tegner activity scores for the 14 patients with remaining MMPRTs were 51.6 ± 22.2 and 3.1 ± 1.1, respectively, and the mean visual analog scale score was 4.4 ± 3.0. Radiographically, the mean Kellgren-Lawrence grade progressed from 1.2 ± 0.7 at baseline to 2.6 ± 0.5 at final follow-up (P < .001). At a minimum 10-year follow-up, 37 of 39 living patients (95%) had failed nonoperative treatment. CONCLUSION Poor clinical and radiographic outcomes were associated with the nonoperative treatment of degenerative MMPRTs at long-term follow-up. This study provides a valuable update on the natural history and long-term prognosis of nonoperatively treated MMPRTs.
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Affiliation(s)
- Aaron J Krych
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Abhinav Lamba
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Allen S Wang
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Alexander M Boos
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Christopher L Camp
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Bruce A Levy
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Michael J Stuart
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Mario Hevesi
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
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Pasic N, Storaci H, Guzman R, Debaun M, Maruyama M, Hall K, Salazar BP, Dragoo JL. A Biomechanical Comparison of All-Inside Versus Transtibial Meniscus Root Repair Techniques. Am J Sports Med 2023; 51:2366-2373. [PMID: 37358235 DOI: 10.1177/03635465231179960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Abstract
BACKGROUND Meniscus root tears are associated with chondral injury, early degenerative change, and a high conversion rate to total knee arthroplasty. It is well-established that meniscus root tears lead to decreased femorotibial contact area, increased peak contact pressures, and increased stress on the articular cartilage. PURPOSE To evaluate the biomechanical characteristics of the all-inside meniscus root repair procedure and compare it with the previously described transtibial technique. STUDY DESIGN Controlled laboratory study. METHODS Nine paired cadaveric knees were prepared by removing skin, subcutaneous tissues, quadriceps muscles, patella, and patellar tendon, while leaving the capsule in place. Pressure-mapping sensors were inserted, and specimens underwent compressive loading to obtain peak pressures, mean pressures, and femorotibial contact area in the medial and lateral compartments. Tests were performed as static compression tests with the knee locked at 0° of flexion. Compression testing was performed in 3 states: meniscus intact, meniscus root cut, and after meniscus root repair with an all-inside repair technique. Additionally, testing was completed on 9 pairs of cadaveric knees to compare stiffness and maximal load to failure between the all-inside and transtibial meniscus root repair techniques. RESULTS In the medial compartment, there were significant increases in median peak pressures and median mean pressures in the root cut state as compared with the intact state (+636 kPA [95% CI, 246 to 1026] and +190 kPA [95% CI, 49 to 330], respectively). All-inside meniscus root repair restored median peak pressures and median mean pressures to approach those of the intact meniscus (+311 kPA [95% CI, -79 to 701] and +137 kPA [95% CI, -3 to 277]). In the lateral compartment, there were also significant increases in median peak pressures and median mean pressures in the root cut state as compared with the intact state (+718 kPA [95% CI, 246 to 1191] and +203 kPA [95% CI, 51 to 355]). All-inside meniscus root repair restored median peak pressures and median mean pressures such that they were not significantly different from the intact state (+322 kPA [95% CI, -150 to 795] and +18 kPA [95% CI, -134 to 171]). There was no difference between repair techniques regarding load to failure (P = .896). Transtibial meniscus root repair had significantly more stiffness (mean ± SD, 24.8 ± 9.3 N/mm) as compared with the all-inside meniscus root repair technique (13.6 ± 3.8 N/mm, P = .015). CONCLUSION All-inside meniscus root repair reduced median peak and mean pressures to those of the native intact meniscus with the knee in extension in the cadaveric model. When compared with a transtibial meniscus root repair technique, all-inside repair demonstrated decreased stiffness and a similar load to failure. CLINICAL RELEVANCE All-inside meniscus root repair restored mean and peak femorotibial pressures to those of the intact meniscus. Additionally, it offers a technically easier technique for management of meniscus root tears.
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Affiliation(s)
- Nicholas Pasic
- Division of Sports Medicine, Department of Orthopaedic Surgery, School of Medicine, University of Colorado, Boulder, Colorado, USA
| | - Hunter Storaci
- Department of Orthopaedic Surgery, Stanford University, Redwood City, California, USA
| | - Roberto Guzman
- Department of Orthopaedic Surgery, Stanford University, Redwood City, California, USA
| | - Malcolm Debaun
- Department of Orthopaedic Surgery, Duke University, Durham, North Carolina, USA
| | - Masahiro Maruyama
- Department of Orthopaedic Surgery, Stanford University, Redwood City, California, USA
| | - Kimberly Hall
- Department of Orthopaedic Surgery, Stanford University, Redwood City, California, USA
| | - Brett P Salazar
- Department of Orthopaedic Surgery, Stanford University, Redwood City, California, USA
| | - Jason L Dragoo
- Division of Sports Medicine, Department of Orthopaedic Surgery, School of Medicine, University of Colorado, Boulder, Colorado, USA
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Weaver AP, Walaszek MC, Roman DP, Harkey MS, Kuenze C. The Impact of Meniscal Tear Type and Surgical Treatment on Quadriceps Strength: A Study of Adolescent Patients Post Anterior Cruciate Ligament Reconstruction. Am J Sports Med 2023; 51:2357-2365. [PMID: 37272684 PMCID: PMC10865339 DOI: 10.1177/03635465231177626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
BACKGROUND Treatment of meniscal injuries at the time of anterior cruciate ligament reconstruction (ACLR) can result in restrictions on weightbearing and range of motion in the early rehabilitative phases. What is unknown is the effect of (1) meniscal tear type and location at the time of anterior cruciate ligament injury and (2) meniscal treatment at the time of ACLR on quadriceps strength in adolescents during the late rehabilitative phase. HYPOTHESIS Meniscal tears involving the root and requiring repair would adversely affect quadriceps strength at 6 to 9 months postoperatively. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS Patients who underwent ACLR at 1 of 2 research sites between 2013 and 2021 were identified. Adolescent participants were included if they were between the ages of 12 and 20 years at the time of assessment and had undergone primary unilateral ACLR in the previous 6 to 9 months. Participants were subgrouped by meniscal tear type (no tear, nonroot tear, root tear) and meniscal treatment at the time of ACLR (no treatment, meniscectomy, meniscal repair), which were confirmed via chart review. Isokinetic strength testing occurred at 60 deg/s, and quadriceps strength and quadriceps strength limb symmetry index were compared between the meniscal tear type and meniscal procedure subgroups using analysis of covariance while controlling for the effects of age, sex, and ACLR graft source. RESULTS An overall 236 patients were included in this analysis (109 male, 127 female; mean ± SD age, 16.0 ± 1.9 years). There were no significant differences in ACLR limb quadriceps strength based on meniscal tear type (P = .61) or meniscal procedure at the time of ACLR (P = .61), after controlling for age, biological sex, and ACLR graft source. Similarly, quadriceps strength limb symmetry index did not differ by meniscal tear type (P = .38) or meniscal procedure at the time of ACLR (P = .40). CONCLUSION Meniscal tear type and treatment at the time of ACLR did not affect quadriceps strength or quadriceps strength symmetry in adolescents 6 to 9 months after ACLR.
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Affiliation(s)
- Adam P. Weaver
- Address correspondence to Adam P. Weaver, PT, DPT, Sports Physical Therapy, Connecticut Children’s, 399 Farmington Ave, Farmington, CT 06032, USA () (Twitter: @adampweaver)
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Su J, Wan H, Pang Y, Lu Y, Liang J, Yan Z, Xu S, Sun T. Clinical, Radiographic, and MRI Evaluation of All-Inside Medial Meniscus Posterior Root Repair via Suture Fixation to the Posterior Cruciate Ligament Versus Partial Meniscectomy: Results at 3-Year Follow-up. Orthop J Sports Med 2023; 11:23259671231180545. [PMID: 37435421 PMCID: PMC10331207 DOI: 10.1177/23259671231180545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 02/26/2023] [Indexed: 07/13/2023] Open
Abstract
Background Medial meniscus posterior root tears (MMPRTs) disrupt the integrity and hoop tension of the meniscus, leading to cartilage degeneration and accelerated osteoarthritis (OA) progression. The management of patients with MMPRT is controversial, and the efficacy of different treatment options is unclear. Purpose To compare the clinical, radiographic, and magnetic resonance imaging (MRI) outcomes of patients with MMPRT between trans-posterior cruciate ligament (trans-PCL) all-inside repair and partial meniscectomy. Study Design Cohort study; Level of evidence, 3. Methods We identified patients with MMPRT who underwent trans-PCL all-inside repair (group AR) or partial meniscectomy (group PM) between 2015 and 2019 at a single institution. The trans-PCL all-inside repair was performed by suturing the torn meniscus root to the PCL fibers. Patient-reported outcomes as well as radiographic and MRI outcomes were collected at baseline and final follow-up. Clinical failure was defined as conversion to total knee arthroplasty (TKA), and Kaplan-Meier survival analysis was used to investigate the survival rates of patients with different surgical procedures. Results Included were 29 patients in group AR and 31 patients in group PM (mean age, 62.69 and 60.68 years, respectively; mean follow-up, 2.91 ± 1.33 and 3.45 ± 1.50 years, respectively). There were no differences in baseline patient characteristics between the groups. All patient-reported outcome scores improved significantly in both groups at the final follow-up. When we compared final outcomes between the groups, group AR had less joint space narrowing (P = .010), less Kellgren-Lawrence OA grade progression (P = .002), and less medial meniscal extrusion (MME; P = .002) than group PM. In addition, group AR showed less progression of bone marrow lesions and cartilage lesions (P < .05) than group PM. The rate of conversion to TKA was 6.90% in group AR and 29.0% in group PM. The 5-year survival rates in the AR and PM groups were 82.6% and 59.8%, respectively (P = .153). Conclusion Trans-PCL all-inside repair for MMPRTs was associated with greater improvement in clinical function, better radiographic results, less MME and cartilage degeneration, and a lower rate of subsequent TKA compared with partial meniscectomy.
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Affiliation(s)
- Jiarong Su
- Arthritis Clinic and Research Center, Peking University, People’s Hospital, Beijing, China
| | - Hongyan Wan
- Department of Radiology, Lonfu Hospital, Beijing, China
| | - Yingchang Pang
- Arthritis Clinic and Research Center, Peking University, People’s Hospital, Beijing, China
| | - Yanli Lu
- Arthritis Clinic and Research Center, Peking University, People’s Hospital, Beijing, China
| | - Jiaming Liang
- Arthritis Clinic and Research Center, Peking University, People’s Hospital, Beijing, China
| | - Zhigang Yan
- Department of Radiology, Lonfu Hospital, Beijing, China
| | - Sibo Xu
- Arthritis Clinic and Research Center, Peking University, People’s Hospital, Beijing, China
| | - Tiezheng Sun
- Arthritis Clinic and Research Center, Peking University, People’s Hospital, Beijing, China
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Mameri ES, Kerzner B, Jackson GR, Jawanda H, Khan ZA, Kaplan DJ, Chahla J. Top Ten Pearls for a Successful Transtibial Pull-Out Repair of Medial Meniscal Posterior Root Tears With a Concomitant Centralization Stitch. Arthrosc Tech 2023; 12:e1039-e1049. [PMID: 37533905 PMCID: PMC10390883 DOI: 10.1016/j.eats.2023.02.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/06/2023] [Accepted: 02/19/2023] [Indexed: 08/04/2023] Open
Abstract
Although historically overlooked, medial meniscus posterior root (MMPR) tears are now increasingly recognized as a substantial cause of biomechanical impairment and morbidity. MMPR tears, when left untreated, are strongly correlated to meniscal extrusion and ultimately lead to altered kinematics and loading functionally equivalent to a total meniscectomy. To prevent progressive joint degeneration and alleviate pain while re-establishing native joint kinematics, MMPR repair is generally recommended in appropriately selected patients. In this Technical Note, the authors describe a detailed checklist with 10 crucial points of emphasis when performing the gold-standard transtibial pull-out repair of the MMPR, with an additional centralization stitch, providing technical pearls backed up by previous literature and ample experience treating this condition.
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Affiliation(s)
- Enzo S. Mameri
- Midwest Orthopaedics at Rush, Chicago, Illinois
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois
- Escola Paulista de Medicina, Federal University of São Paulo, São Paulo - SP, Brazil
- Instituto Brasil de Tecnologias da Saúde, Rio de Janeiro - RJ, Brazil
| | - Benjamin Kerzner
- Midwest Orthopaedics at Rush, Chicago, Illinois
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois
| | - Garrett R. Jackson
- Midwest Orthopaedics at Rush, Chicago, Illinois
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois
| | - Harry Jawanda
- Midwest Orthopaedics at Rush, Chicago, Illinois
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois
| | - Zeeshan A. Khan
- Midwest Orthopaedics at Rush, Chicago, Illinois
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois
| | - Daniel J. Kaplan
- Midwest Orthopaedics at Rush, Chicago, Illinois
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois
| | - Jorge Chahla
- Midwest Orthopaedics at Rush, Chicago, Illinois
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois
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Moon HS, Choi CH, Jung M, Chung K, Jung SH, Kim YH, Kim SH. Medial Meniscus Posterior Root Tear: How Far Have We Come and What Remains? MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1181. [PMID: 37511993 PMCID: PMC10386469 DOI: 10.3390/medicina59071181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/16/2023] [Accepted: 06/19/2023] [Indexed: 07/30/2023]
Abstract
Medial meniscus posterior root tears (MMRTs), defined as tears or avulsions that occur within 1 cm of the tibial attachment of the medial meniscus posterior root, lead to biomechanically detrimental knee conditions by creating a functionally meniscal-deficient status. Given their biomechanical significance, MMRTs have recently been gaining increasing interest. Accordingly, numerous studies have been conducted on the anatomy, biomechanics, clinical features, diagnosis, and treatment of MMRTs, and extensive knowledge has been accumulated. Although a consensus has not yet been reached on several issues, such as surgical indications, surgical techniques, and rehabilitation protocols, this article aimed to comprehensively review the current knowledge on MMRTs and to introduce the author's treatment strategies.
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Affiliation(s)
- Hyun-Soo Moon
- Arthroscopy and Joint Research Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
- Department of Orthopedic Surgery, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang 14068, Republic of Korea
| | - Chong-Hyuk Choi
- Arthroscopy and Joint Research Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
- Department of Orthopedic Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Min Jung
- Arthroscopy and Joint Research Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
- Department of Orthopedic Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Kwangho Chung
- Arthroscopy and Joint Research Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
- Department of Orthopedic Surgery, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin 16995, Republic of Korea
| | - Se-Han Jung
- Arthroscopy and Joint Research Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
- Department of Orthopedic Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul 06273, Republic of Korea
| | - Yun-Hyeok Kim
- Department of Orthopedic Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
| | - Sung-Hwan Kim
- Arthroscopy and Joint Research Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
- Department of Orthopedic Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul 06273, Republic of Korea
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Wang H, Man Q, Gao Y, Xu L, Zhang J, Ma Y, Meng Q. The efficacy of medial meniscal posterior Root tear Repair with or without high tibial osteotomy: a systematic review. BMC Musculoskelet Disord 2023; 24:464. [PMID: 37280599 DOI: 10.1186/s12891-023-06520-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 05/11/2023] [Indexed: 06/08/2023] Open
Abstract
BACKGROUND Medial meniscal posterior root tear (MMPRTs) is a common lesion of the knee joint, and repair surgery is a well-established treatment option. However, patients with obvious varus alignment are at an increased risk for MMPRT and can suffer from a greater degree of medial meniscus extrusion, which leads to the development of osteoarthritis following repair. The efficacy of high tibial osteotomy (HTO) as a means of correcting this malformation, and its potential benefits for MMPRT repair, remains unclear. PURPOSE To explore whether HTO influenced the outcome of MMPRT repair in clinical scores and radiological findings. STUDY DESIGN Systematic review. METHODS According to the PRISMA (Preferred Reporting Items for Systematic Review and Meta-Analyses) guidelines, we searched PubMed, Embase, Web of Science, and the Cochrane Library databases for studies reporting the outcomes of MMPRT repair and extracted data about characteristics of patients, clinical functional scores and radiologic outcomes. One reviewer extracted the data and 2 reviewers assessed the risk of bias and performed a synthesis of the evidence. Articles were eligible if they reported the results of MMPRT repair with exact mechanical axis (registered in the International Prospective Register of Systematic Reviews, CRD42021292057). RESULTS Fifteen studies with 625 cases of high methodological quality were identified. Eleven studies were assigned to the MMPRT repair group (M) with 478 cases performing MMPRT repair only, and others belonged to the MMPRT repair and HTO group (M and T) performing HTO and MMPRT repair. Most of the studies had significantly improved clinical outcome scores, especially in M groups. And the radiologic outcomes showed that the osteoarthritis deteriorated in both groups with similar degree in about 2-year follow-up. CONCLUSION HTO is a useful supplement in treating MMPRT patients with severe osteoarthritis and the clinical and radiological outcomes were similar with MMPRT repair alone. Which would be better for patients' prognosis generally, performing MMPRT repair alone or a combination of HTO and MMPRT repair, was still controversial. We suggested taking K-L grade into account. Large-scale randomized control studies were called for in the future to help make better clinical decisions. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Hangle Wang
- Department of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Institute of Sports Medicine of Peking University, 49 North Garden Road, Haidian District, Beijing, 100191, People's Republic of China
- Peking University Health Science Center, 38 Xueyuan Road, Haidian District, Beijing, 100191, People's Republic of China
| | - Qian Man
- Department of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Institute of Sports Medicine of Peking University, 49 North Garden Road, Haidian District, Beijing, 100191, People's Republic of China
- Peking Unversity First Hospital, 8 Xishiku Street, Xicheng District, Beijing, 100034, People's Republic of China
| | - Yitian Gao
- Peking University Health Science Center, 38 Xueyuan Road, Haidian District, Beijing, 100191, People's Republic of China
| | - Lingyi Xu
- Peking Unversity First Hospital, 8 Xishiku Street, Xicheng District, Beijing, 100034, People's Republic of China
| | - Jingwei Zhang
- Peking University People's Hospital, No.11 Xizhimen South Street, Xicheng District, Beijing, 100044, People's Republic of China
| | - Yong Ma
- Department of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Institute of Sports Medicine of Peking University, 49 North Garden Road, Haidian District, Beijing, 100191, People's Republic of China.
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, People's Republic of China.
| | - Qingyang Meng
- Department of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Institute of Sports Medicine of Peking University, 49 North Garden Road, Haidian District, Beijing, 100191, People's Republic of China.
- Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, People's Republic of China.
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Kim DH, Bae KC, Yon CJ, Kim JH. Posterior Medial Meniscus Root Repair Using Two Transtibial Tunnels with Modified Mason-Allen Stitches: A Technical Note. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:medicina59050922. [PMID: 37241154 DOI: 10.3390/medicina59050922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/07/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023]
Abstract
Complete tear of the posterior medial meniscus root can result in a loss of hoop tension and increased contact pressure. Thus, medial meniscus posterior root tear (MMPRT) is increasingly recognized as an important pathology. Although several surgical techniques for MMPRT have recently been introduced, the ideal technique is not yet established. This technical note is aimed at introducing a novel surgical technique using two transtibial tunnels with modified Mason-Allen stitches in the treatment of MMPRT.
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Affiliation(s)
- Du-Han Kim
- Department of Orthopedic Surgery, Keimyung University Dongsan Hospital, Keimyung University School of Medicine, Daegu 42601, Republic of Korea
| | - Ki-Cheor Bae
- Department of Orthopedic Surgery, Keimyung University Dongsan Hospital, Keimyung University School of Medicine, Daegu 42601, Republic of Korea
| | - Chang-Jin Yon
- Department of Orthopedic Surgery, Keimyung University Dongsan Hospital, Keimyung University School of Medicine, Daegu 42601, Republic of Korea
| | - Ji-Hoon Kim
- Department of Orthopedic Surgery, Keimyung University Dongsan Hospital, Keimyung University School of Medicine, Daegu 42601, Republic of Korea
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Hiranaka T, Furumatsu T, Okazaki Y, Kintaka K, Higashihara N, Tamura M, Nakata E, Ozaki T. Accuracy of the newly developed Zimmer Biomet Root Aiming guide in tibial tunnel creation compared with that of conventional guides. Asia Pac J Sports Med Arthrosc Rehabil Technol 2023; 32:1-6. [PMID: 37092123 PMCID: PMC10120359 DOI: 10.1016/j.asmart.2023.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 10/12/2022] [Accepted: 03/16/2023] [Indexed: 04/25/2023] Open
Abstract
Background/objective Accurate tibial tunnel creation is crucial for successful transtibial pullout repair of medial meniscus (MM) posterior root tears (MMPRTs). This study aimed to evaluate the accuracy of the newly developed Zimmer Biomet Root Aiming (ZeBRA) guide for transtibial pullout repair of MMPRTs. Methods This study included 50 patients who underwent transtibial pullout repair using the Unicorn Meniscal Root (UMR) (n = 25) and ZeBRA (n = 25) guides. The expected anatomic centre (AC) and tibial tunnel centre (TC) were assessed using three-dimensional postoperative computed tomography (CT) images. The expected AC was defined as the centre of the circle tangent to the triangular footprint of the MM posterior root. The expected AC and TC on the tibial surface were assessed using the percentage-based posterolateral location on the tibial surface. The absolute distance between the AC and TC (mm) was evaluated. Results The mean AC location was 76.1% ± 3.1% posterior and 40.8% ± 2.1% lateral, whereas the mean TC location was 76.7% ± 5.3% posterior and 37.2% ± 3.6% lateral using the UMR guide and 75.8% ± 3.1% posterior and 36.5% ± 2.4% lateral using the ZeBRA guide. No significant difference was observed in the absolute distance between the UMR and ZeBRA guides (3.9 ± 1.4 and 3.8 ± 1.3 mm, respectively; p = 0.617). Conclusions The newly developed ZeBRA guide allows accurate tibial tunnel creation, and its accuracy is comparable to that of the conventional UMR guide. Tibial tunnels were created at optimal positions using both guides, and the choice of the guide would depend on the surgeon's preference.
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Affiliation(s)
- Takaaki Hiranaka
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
- Department of Orthopaedic Surgery, Ako Central Hospital, 52‑6 Sohmon‑cho, Ako, Hyogo 678‑0241, Japan
| | - Takayuki Furumatsu
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
- Corresponding author. Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan.
| | - Yuki Okazaki
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Keisuke Kintaka
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Naohiro Higashihara
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Masanori Tamura
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Eiji Nakata
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama 700-8558, Japan
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Revelt N, Kurcz B, George E, Wolters B. Medial Meniscal Posterior Root Avulsion Fracture Repair Using the Nice Knot. Arthrosc Tech 2023; 12:e357-e362. [PMID: 37013019 PMCID: PMC10066258 DOI: 10.1016/j.eats.2022.11.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 11/06/2022] [Indexed: 04/05/2023] Open
Abstract
Meniscal root tears have recently seen an increase in diagnosis. As we understand more about the biomechanical relationship between the meniscus and tibiofemoral articular surface, it becomes more important to promptly identify and repair these lesions. Root tears may cause up to a 25% increase in forces in the tibiofemoral compartment, potentially leading to hastened degenerative changes visible on radiographs and decreased patient outcomes. The anatomic footprint of the meniscal roots has been described, as well as multiple iterations of repair techniques, with the most popular being the arthroscopic-assisted transtibial pullout technique for repair of the posterior meniscal roots. The tensioning technique varies and has been a surgical step that can lead to error during the procedure. We use a transtibial technique with modifications in the method of suture fixation and tensioning. To begin, we use 2 doubled-over sutures that are passed through the root to create a looped end and a twin-tailed end. This is followed by the use of a locking, tensionable and, if needed, reversible Nice knot that is tied on the anterior tibial cortex over a button. This technique provides controlled and accurate tension to the root repair when tied over a suture button on the anterior tibia with stable suture fixation to root.
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Affiliation(s)
- Nicolas Revelt
- Division of Orthopedics and Rehabilitation, Department of Surgery, Southern Illinois University School of Medicine, Springfield, Illinois, USA
| | - Brian Kurcz
- Division of Orthopedics and Rehabilitation, Department of Surgery, Southern Illinois University School of Medicine, Springfield, Illinois, USA
| | - Edgar George
- Division of Orthopedics and Rehabilitation, Department of Surgery, Southern Illinois University School of Medicine, Springfield, Illinois, USA
| | - Brett Wolters
- Division of Orthopedics and Rehabilitation, Department of Surgery, Southern Illinois University School of Medicine, Springfield, Illinois, USA
- Orthopedics Department, Springfield Clinic Springfield, Illinois, USA
- Address correspondence to Brett Wolters, M.D., Orthopedics Department, Springfield Clinic, 800 N. 1st St., Springfield, IL 62702.
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El Helou A, Gousopoulos L, Shatrov J, Hopper GP, Philippe C, Ayata M, Thaunat M, Fayard JM, Freychet B, Vieira TD, Sonnery-Cottet B. Failure Rates of Repaired Bucket-Handle Tears of the Medial Meniscus Concomitant With Anterior Cruciate Ligament Reconstruction: A Cohort Study of 253 Patients From the SANTI Study Group With a Mean Follow-up of 94 Months. Am J Sports Med 2023; 51:585-595. [PMID: 36734511 DOI: 10.1177/03635465221148497] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Failure rates of repaired bucket-handle medial meniscal tears (BHMMTs) concomitant with anterior cruciate ligament reconstruction (ACLR) are as high as 20%. The outcomes of posteromedial portal suture hook repair have not been compared with all-inside repair techniques for this subtype of meniscal lesion. PURPOSE/HYPOTHESIS The aim of this study was to evaluate the outcomes and failure rates of patients who underwent BHMMT repair concomitant with ACLR using an all-inside technique, suture hook + all-inside technique, or suture hook + outside-in technique. It was hypothesized that no significant differences in failure rates would be found between the groups. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS A retrospective analysis was performed on patients diagnosed with a BHMMT who underwent meniscal repair during primary ACLR and had a minimum follow-up of 2 years. Patients were grouped based on the meniscal repair technique used: all-inside repair, suture hook + all-inside repair, or suture hook + outside-in repair. At the end of the study period, secondary medial meniscectomy rates were determined. RESULTS The study population comprised 253 patients who underwent repair of a BHMMT with concomitant ACLR with a mean follow-up of 94.0 ± 47.6 months. A total of 114 patients (45.1%) underwent all-inside repair, 61 patients (24.1%) underwent suture hook + all-inside repair, and 78 patients (30.8%) underwent suture hook + outside-in repair. Overall, there were 36 failures. The failure rates were 20.2%, 14.8%, and 5.1%, respectively (P = .0135). All-inside repairs were >4 times more likely to fail than suture hook + outside-in repairs (hazard ratio [HR], 4.103; 95% CI, 1.369-12.296; P = .0117). Failure was also 3 times higher (HR, 2.943; 95% CI, 1.224-7.075; P = .0159) for patients <30 years of age compared with those aged ≥30 years. An additional anterolateral ligament reconstruction (ALLR) was also found to reduce the failure rate of repaired BHMMTs concomitant with ACLR. CONCLUSION Combined suture hook + outside-in repair of BHMMTs resulted in significantly fewer failures than all other techniques. Furthermore, age <30 years and no additional ALLR were associated with higher failure rates.
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Affiliation(s)
- Abdo El Helou
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
| | - Lampros Gousopoulos
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
| | - Jobe Shatrov
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
| | - Graeme P Hopper
- NHS Glasgow and Clyde South Glasgow University Hospitals NHS Trust Glasgow, Glasgow, UK
| | - Corentin Philippe
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
| | - Merwane Ayata
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
| | - Mathieu Thaunat
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
| | - Jean-Marie Fayard
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
| | - Benjamin Freychet
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
| | - Thais Dutra Vieira
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
| | - Bertrand Sonnery-Cottet
- Centre Orthopedique Santy, FIFA Medical Center of Excellence, Hôpital Privé Jean Mermoz, Groupe GDS-Ramsay, Lyon, France
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Editorial Commentary: High Tibial Osteotomy May Not Be Required With Medial Meniscus Root Repair. Arthroscopy 2023; 39:647-649. [PMID: 36740287 DOI: 10.1016/j.arthro.2022.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 10/30/2022] [Accepted: 11/02/2022] [Indexed: 02/07/2023]
Abstract
Meniscal root tears are defined as tears within 10 mm of their attachment and are more commonly observed in middle-aged patients. They have been named the silent epidemic and are equivalent to a total meniscectomy. Basic science studies have shown that posterior meniscus root repairs restore both contact area and pressure to its native state. The role of an additional high tibial osteotomy is not clear yet. High tibial osteotomies are commonly used to correct varus malalignment, a condition that is often observed with these tears. However, an additional osteotomy does not seem to offer any additional clinical benefits with regards to clinical and radiologic outcomes. It also has no effect with regards to contact pressure and contact area and is not related to the degree of deformity correction.
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Hiranaka T, Furumatsu T, Yokoyama Y, Kintaka K, Higashihara N, Tamura M, Kawada K, Xue H, Hamada M, Ozaki T. The clinical and radiographic outcomes of type 2 medial meniscus posterior root tears following transtibial pullout repair. Knee Surg Sports Traumatol Arthrosc 2022; 31:2323-2330. [PMID: 36566386 DOI: 10.1007/s00167-022-07293-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 12/13/2022] [Indexed: 12/26/2022]
Abstract
PURPOSE The aim of this study was to compare the clinical outcomes of different subtypes of type 2 medial meniscus posterior root tears following transtibial pullout repair. METHODS In total, 147 patients (mean age: 66.2 ± 8.3 years) who were diagnosed with type 2 medial meniscus posterior root tears and underwent transtibial pullout repair were included. Patients were divided into 2A (n = 31), 2B (n = 90), and 2C (n = 26) groups according to tear type. Clinical outcomes were assessed pre-operatively and at second-look arthroscopy using the Knee injury and Osteoarthritis Outcome Score. The meniscal healing status was evaluated at second-look arthroscopy. Medial meniscus extrusion was calculated using magnetic resonance imaging pre-operatively and at second-look arthroscopy. RESULTS No significant differences in pre-operative or post-operative clinical scores were observed between each subtype, although clinical scores improved post-operatively for each subtype. Significant differences were noted in the anteroposterior width of the bridging tissues at second-look arthroscopy (2A, 7.1 ± 1.2; 2B, 6.2 ± 1.7; and 2C, 6.2 ± 1.7 mm; p = 0.045); type 2A tears were the widest. There was a significant difference in post-operative medial meniscus extrusion (2A, 3.2 ± 0.9; 2B, 4.0 ± 1.2; and 2C, 4.0 ± 1.4 mm; p = 0.004) and its progression (2A, 0.7 ± 0.6; 2B, 1.2 ± 0.8; and 2C, 1.2 ± 0.8 mm; p = 0.008), and type 2A tears were the shortest. CONCLUSION Although there was no significant difference in the post-operative clinical scores among different type 2 tears in the short term, type 2A tears showed better healing and medial meniscus extrusion progression prevention, thus indicating the usefulness of classifying tear type in estimating post-operative outcomes. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Takaaki Hiranaka
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan.,Department of Orthopaedic Surgery, Ako Central Hospital, 52‑6 Sohmon‑cho, Ako, Hyogo, 678‑0241, Japan
| | - Takayuki Furumatsu
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan.
| | - Yusuke Yokoyama
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Keisuke Kintaka
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Naohiro Higashihara
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Masanori Tamura
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Koki Kawada
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Haowei Xue
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Masanori Hamada
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikatacho, Kitaku, Okayama, 700-8558, Japan
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Xu Z, Li Y, Rao J, Jin Y, Huang Y, Xu X, Liu Y, Tian S. Biomechanical assessment of disease outcome in surgical interventions for medial meniscal posterior root tears: a finite element analysis. BMC Musculoskelet Disord 2022; 23:1093. [PMID: 36517757 PMCID: PMC9749342 DOI: 10.1186/s12891-022-06069-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 12/07/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND The adverse consequences of medial meniscus posterior root tears have become increasingly familiar to surgeons, and treatment strategies have become increasingly abundant. In this paper, the finite element gait analysis method was used to explore the differences in the biomechanical characteristics of the knee joint under different conditions. METHODS Based on CT computed tomography and MR images, (I) an intact knee (IK) model with bone, cartilage, meniscus and main ligaments was established. Based on this model, the posterior root of the medial meniscus was resected, and (ii) the partial tear (PT) model, (iii) the entire radial tear (ERT) model, and (iv) the entire oblique tear (EOT) model were established according to the scope and degree of resection. Then, the (v) meniscus repair (MR) model and (vi) partial meniscectomy (PM) model were developed according to the operation method. The differences in stress, displacement and contact area among different models were evaluated under ISO gait loading conditions. RESULTS Under gait loading, there was no significant difference in the maximum stress of the medial and lateral tibiofemoral joints among the six models. Compared with the medial tibiofemoral joint stress of the IK model, the stress of the PM model increased by 8.3%, while that of the MR model decreased by 18.9%; at the same time, the contact stress of the medial tibiofemoral joint of the ERT and EOT models increased by 17.9 and 25.3%, respectively. The displacement of the medial meniscus in the ERT and EOT models was significantly larger than that in the IK model (P < 0.05), and the tibial and femoral contact areas of these two models were lower than those of the IK model (P < 0.05). CONCLUSIONS The integrity of the posterior root of the medial meniscus plays an important role in maintaining normal tibial-femoral joint contact mechanics. Partial meniscectomy is not beneficial for improving the tibial-thigh contact situation. Meniscal repair has a positive effect on restoring the normal biomechanical properties of the medial meniscus.
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Affiliation(s)
- Zhi Xu
- Department of Orthopaedics, Zhangjiagang Fifth People’s Hospital, Zhangjiagang, 215600 Jiangsu China ,grid.267139.80000 0000 9188 055XCollege of Continuing Education, University of Shanghai for Science and Technology, Shanghai, 200000 China
| | - Yuwan Li
- grid.411642.40000 0004 0605 3760Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Beijing, 100191 China
| | - Jingcheng Rao
- grid.428392.60000 0004 1800 1685Department of Orthopaedics, Suqian Hospital of Nanjing Drum Tower Hospital Group, Suqian, 223800 Jiangsu China
| | - Ying Jin
- grid.413390.c0000 0004 1757 6938Department of Orthopaedics, The Affiliated Hospital of Zunyi Medical University, No.149 Dalian Road, Zunyi, 563000 Guizhou China
| | - Yushun Huang
- Department of Orthopaedics, Jen Ching memorial Hospital, Kunshan, 215300 Jiangsu China
| | - Xing Xu
- Department of Medicine, Zhijin People’s Hospital, Zhijin, 552100 Guizhou China
| | - Yi Liu
- grid.413390.c0000 0004 1757 6938Department of Orthopaedics, The Affiliated Hospital of Zunyi Medical University, No.149 Dalian Road, Zunyi, 563000 Guizhou China
| | - Shoujin Tian
- grid.460159.fDepartment of Orthopaedics, Zhangjiagang First People’s Hospital, No.68 Jiyang West Road, Zhangjiagang, 215600 Jiangsu China
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Jin P, Liu L, Chen X, Cheng L, Zhang W, Zhong G. Applications and prospects of different functional hydrogels in meniscus repair. Front Bioeng Biotechnol 2022; 10:1082499. [PMID: 36568293 PMCID: PMC9773848 DOI: 10.3389/fbioe.2022.1082499] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 11/28/2022] [Indexed: 12/14/2022] Open
Abstract
The meniscus is a kind of fibrous cartilage structure that serves as a cushion in the knee joint to alleviate the mechanical load. It is commonly injured, but it cannot heal spontaneously. Traditional meniscectomy is not currently recommended as this treatment tends to cause osteoarthritis. Due to their good biocompatibility and versatile regulation, hydrogels are emerging biomaterials in tissue engineering. Hydrogels are excellent candidates in meniscus rehabilitation and regeneration because they are fine-tunable, easily modified, and capable of delivering exogenous drugs, cells, proteins, and cytokines. Various hydrogels have been reported to work well in meniscus-damaged animals, but few hydrogels are effective in the clinic, indicating that hydrogels possess many overlooked problems. In this review, we summarize the applications and problems of hydrogels in extrinsic substance delivery, meniscus rehabilitation, and meniscus regeneration. This study will provide theoretical guidance for new therapeutic strategies for meniscus repair.
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Affiliation(s)
- Pan Jin
- Health Science Center, Yangtze University, Jingzhou, China,Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co-constructed by the Province and Ministry, Guangxi Medical University, Nanning, China,*Correspondence: Pan Jin, ; Gang Zhong,
| | - Lei Liu
- Articular Surgery, The Second Nanning People’s Hospital (Third Affiliated Hospital of Guangxi Medical University), Nanning, China
| | - Xichi Chen
- Health Science Center, Yangtze University, Jingzhou, China
| | - Lin Cheng
- Health Science Center, Yangtze University, Jingzhou, China
| | - Weining Zhang
- Health Science Center, Yangtze University, Jingzhou, China
| | - Gang Zhong
- Center for Materials Synthetic Biology, CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China,*Correspondence: Pan Jin, ; Gang Zhong,
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Kim YM, Joo YB, An BK, Song JH. Age and Meniscal Extrusion Are Determining Factors of Osteoarthritis Progression after Conservative Treatments for Medial Meniscus Posterior Root Tear. J Pers Med 2022; 12:jpm12122004. [PMID: 36556225 PMCID: PMC9783096 DOI: 10.3390/jpm12122004] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 11/28/2022] [Accepted: 12/01/2022] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND With a growing understanding of biomechanical disadvantages following medial meniscus posterior root tear (MMPRT), recent studies have focused on surgical repair of MMPRT. Because not all tears are repairable, surgical indications can be properly established when the outcomes of conservative treatments are revealed. This study tried to identify risk factors for osteoarthritis progression after conservative treatments for isolated MMPRT. MATERIALS & METHODS Patients who had conservative treatments for isolated MMPRT during 2013-2016 were retrospectively reviewed. To evaluate osteoarthritis progression, those who were followed up for ≤3 years and those who already showed advanced osteoarthritis of Kellgren--Lawrence (K-L) grade 4 at the time of diagnosis were excluded. Because patients with varus malalignment were candidates for realignment osteotomy, conservative treatments for MMPRT were applied to patients with well-aligned knees. Osteoarthritis progression was determined based on the K-L grading system, and risk factors including age, sex, body mass index, lower limb alignment, preoperative K-L grade, meniscal extrusion, and the presence of subchondral bone marrow lesion (BML) were analyzed using logistic regression analyses. RESULTS A total of 42 patients were followed up for 57.4 ± 26.8 months. During that period, osteoarthritis progression was noted in 17 (40.5%) patients. Based on univariate analyses for each risk factor, age, meniscal extrusion, and the presence of subchondral BML were included in the multivariate logistic regression analysis. The results showed that age (p = 0.028, odds ratio = 0.87) and meniscal extrusion (p = 0.013, odds ratio = 9.65) were significant risk factors. A receiver operating characteristic curve found that the cutoff age was 63.5 years, with the area under the curve being 0.72 (sensitivity, 68.0%; specificity, 70.6%). CONCLUSIONS About two-fifths of patients who had conservative treatments for MMPRT underwent osteoarthritis progression in the mid to long term. Age and meniscal extrusion were determining factors of osteoarthritis progression. The risk for osteoarthritis progression was decreased when the age of patients was over 63.5 years.
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Affiliation(s)
- Young Mo Kim
- Department of Orthopedic Surgery, Chungnam National University Hospital, Chungnam National University College of Medicine, Daejeon 35015, Republic of Korea
| | - Yong Bum Joo
- Department of Orthopedic Surgery, Chungnam National University Hospital, Chungnam National University College of Medicine, Daejeon 35015, Republic of Korea
| | - Byung Kuk An
- Department of Orthopedic Surgery, Chungnam National University Hospital, Chungnam National University College of Medicine, Daejeon 35015, Republic of Korea
| | - Ju-Ho Song
- Department of Orthopedic Surgery, Chungnam National University Sejong Hospital, Chungnam National University College of Medicine, Sejong 30099, Republic of Korea
- Correspondence: ; Tel.: +82-44-995-4798
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Arthroscopic Triple-Loaded Soft Anchor Technique in Medial Meniscal Root Repair: A Systematic, Step-by-Step Approach. Arthrosc Tech 2022; 11:e1851-e1861. [PMID: 36457400 PMCID: PMC9705269 DOI: 10.1016/j.eats.2022.06.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 06/27/2022] [Indexed: 11/06/2022] Open
Abstract
The results of meniscal root repair (MRR) have shown that this repair is the best treatment option in the presence of an acute situation with no degenerative changes. The meniscal root could be restored, in addition to the meniscus's hoop stress function, which is a key component in preventing osteoarthritis progression in the future. Several MRR techniques have been developed, and both improved biomechanics and a lower incidence of failure repair are correlated with suture anchor techniques. Suture anchor techniques also have many ways in which they can be adapted until the disadvantages are eliminated, such as the risk of a major neurovascular problem in the posterior compartment and the difficulty of preparing the base of the meniscal footprint because visualization in the medial compartment of the knee is limited. My MRR technique can improve knee function and allow a return to normal activities without the development of osteoarthritis by relying on the concepts of biomechanics and the regeneration process.
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Furumatsu T, Miyazawa S, Kodama Y, Kamatsuki Y, Okazaki Y, Hiranaka T, Okazaki Y, Kintaka K, Ozaki T. Clinical outcomes of medial meniscus posterior root repair: A midterm follow-up study. Knee 2022; 38:141-147. [PMID: 36058121 DOI: 10.1016/j.knee.2022.08.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 04/27/2022] [Accepted: 08/17/2022] [Indexed: 02/02/2023]
Abstract
BACKGROUND Transtibial pullout repair of medial meniscus posterior root tears (MMPRTs) cannot prevent the progression of knee osteoarthritis. Conversions of knee arthroplasties are occasionally required following MMPRT repair. However, other knee-related surgical treatments following MMPRT repair are unclear. This study was aimed at investigating the midterm clinical outcomes and knee-related surgical events following MMPRT repair. METHODS Patients with MMPRT underwent pullout repair using FasT-Fix modified Mason-Allen (F-MMA) suturing with an all-inside meniscal repair device. Thirty-two patients with follow-up duration >2 years were enrolled. We assessed the clinical outcomes and postoperative surgical treatment of both knees. RESULTS F-MMA pullout repair improved all clinical evaluation scores in patients with MMPRT at a mean follow-up of 36.1 months. Postoperative arthroscopic debridement was required for one patient. An additional MMPRT repair was performed in one patient on second-look arthroscopy. None of the patients required ipsilateral knee arthroplasty. In the contralateral knees, one pullout repair of a newly developed MMPRT and two knee arthroplasties were performed. CONCLUSIONS This study demonstrated that F-MMA pullout repair yielded satisfactory clinical outcomes. However, subsequent knee-related surgeries were observed in 6.3% of the pullout-repaired knees and 9.4% of the contralateral knees. Our results suggest that surgeons should be aware of the worsening and/or occurrence of contralateral knee joint disease, even when the postoperative clinical outcomes are satisfactory following MMPRT repair. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Takayuki Furumatsu
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.
| | - Shinichi Miyazawa
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Yuya Kodama
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Yusuke Kamatsuki
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Yoshiki Okazaki
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Takaaki Hiranaka
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Yuki Okazaki
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Keisuke Kintaka
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Toshifumi Ozaki
- Department of Orthopaedic Surgery, Okayama University Hospital, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
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