|Year : 2018 | Volume
| Issue : 3 | Page : 87-91
Anterior cruciate ligament reconstruction surgery timing with respect to meniscal-chondral damage
Mohammadreza Minator Sajjadi, Mohammad Ali Okhovatpour, Adel Ebrahimpour, Reza Zandi, Meysam Jafari Kafi-Abadi, Mehrdad Sadighi
Department of Orthopedics, Taleghani Hospital, Shahid Beheshti University of Medical Science, Tehran, Iran
|Date of Web Publication||19-Feb-2019|
Shahid Beheshti University of Medical Science, Taleghani Hospital, Tehran
Source of Support: None, Conflict of Interest: None
Background: Anterior cruciate ligament (ACL) tear is one of the most common types of knee injuries. Delay in diagnosis and treatment of ACL injuries can lead to further damage of the meniscus and cartilage. In this study, we tried to show the distribution of injuries over time and types. Methods: This retrospective study was performed on 336 patients with the diagnosis of primary ACL tear without other ligament injuries. The data including site and grade of the meniscal tear and cartilage damage, based on the International Cartilage Repair Society Classification, the time between diagnosis and surgical procedure, and the treatment method were collected. In this study, we divided patients into four groups according to injury to surgery time. Groups were 3 months, 3–6 months, 6–12 months, and over 12 months to surgery. Results: The results showed that a rate of cartilage damage had no significant correlation with a time interval between injury and surgery (P = 0.54). Furthermore, no significant correlation was found between the site of cartilage damage and the interval time after injury to surgery. The results indicated that the meniscal tear increases in case of a delay to perform surgery (P = 0.004). However, no significant relation was found between the site and pattern of meniscal injury and time. Moreover, patients with a complete ACL tear had a significantly higher rate of meniscus injury compared to those with a partial ACL tear (0.048). Conclusion: The findings of this study show that there is no significant relationship between the time of surgery and the risk of chondral damage after the ACL tear over time. ACL-ruptured patients should undergo the ACL reconstruction surgery up to 3 months from knee trauma to prevent further meniscal injuries.
Keywords: Anterior cruciate ligament, anterior cruciate ligament reconstruction, chondral damage, meniscal injury
|How to cite this article:|
Sajjadi MM, Okhovatpour MA, Ebrahimpour A, Zandi R, Kafi-Abadi MJ, Sadighi M. Anterior cruciate ligament reconstruction surgery timing with respect to meniscal-chondral damage. Arch Trauma Res 2018;7:87-91
|How to cite this URL:|
Sajjadi MM, Okhovatpour MA, Ebrahimpour A, Zandi R, Kafi-Abadi MJ, Sadighi M. Anterior cruciate ligament reconstruction surgery timing with respect to meniscal-chondral damage. Arch Trauma Res [serial online] 2018 [cited 2019 May 27];7:87-91. Available from: http://www.archtrauma.com/text.asp?2018/7/3/87/252546
| Introduction|| |
Anterior cruciate ligament (ACL) injuries are the most common knee injury among athletes. The annual incidence rate of ACL tear is up to 0.05% every year in Australia; it is 0.15%–3.7% for contact sports athletes. The rate of such injury for amateur athletes is higher than those belonging to the general population, but it is lower among professional athletes., Meniscus tears and chondral lesions are often concomitant with the ACL tear at the time of arthroscopic reconstruction.,,
Meniscus and chondral lesions associated with ACL tear may occur due to the onset of ACL injury or ACL-related knee instability. ACL injury can cause anterior–posterior and rotary knee instability over time. Finally, it will increase mechanical pressure on the meniscus and joint cartilage, and this leads to meniscal and cartilage damage.,,,, Delay in diagnosis and treatment of ACL injuries can lead to further damage of the meniscus and cartilage. There is inadequate evidence about determining the best time for ACL surgery to avoid the meniscus and cartilage damage.
Such information about patients with ACL rupture, such as changes in the incidence and pattern of meniscus and cartilage damage, could point our chosen time in ACL reconstruction surgery over time.
The aim of this retrospective study was to evaluate the incidence rate of ACL tear-associated injuries, such as cartilage and meniscus lesions and their pattern changes, based on the time. Patient-related parameters were also investigated.
| Methods|| |
This retrospective study was performed on 336 patients diagnosed with primary ACL tear and without any other ligament injuries during 2015–2017. The patients underwent arthroscopic reconstruction and their ACL injuries were diagnosed by clinical examination and magnetic resonance imaging studies. All the patients had been treated by one senior knee surgeon in the Taleghani Hospital of Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Files of these patients were reviewed. After that, necessary data, including the location and grade of cartilage damage based on the International Cartilage Repair Society Classification (ICRS), the location and pattern of meniscus tears, the time between diagnosis and surgical procedure, and the treatment method, were collected.
The demographic characteristics of the patients, such as age, sex, and mechanism of damage, were recorded as well. Both descriptive and statistical analyses were performed.
| Results|| |
From a total of 336 consecutive patients who underwent primary ACL reconstruction, 291 were male (86.6%) and the remaining were female (13.4%). The mean age of the patients was 28.5. In total, 191 patients were athletes and had the ACL rupture during sports activity. There were 145 nonathletic patients. As many as 314 cases were diagnosed with a complete ACL tear and others had an incomplete tear. [Figure 1] shows the time interval between injury and surgery, with the latter being divided into four groups: injury up to 3 months, 3–6 months, 6–12 months, and finally, patients with surgery after 12 months.
Medial femoral condyle was the mode region of cartilage damage, but an intact cartilage with a rate of 57.4% was the dominant pattern [Table 1]. Grade II cartilage damage in accordance with the ICRS classification with a rate of 81.35% was the most seen pattern, following Grade I cartilage damage with a rate of 4.46% [Table 2]. As many as 108 patients had no meniscus injury (35.22%). Among patients with meniscus injury, the most frequent site was the posterior horn of medial meniscus (59.63%) [Figure 2]. The most prevalent pattern of meniscus tear during arthroscopy was the bucket-handle type (39.3%), followed by complex and longitudinal tears [Table 3]. All treatments for the patients with meniscus tears have been summarized in [Table 4].
|Figure 2: Meniscus lesion site distribution. MEN.L: Meniscus lesion, Med: Medial, lat: Lateral|
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According to the results of this study, 40% of cartilage damages were seen in Group 1 (first 3 months) and 49% in Group 2 (3–6 months), 44% in Group 3 (6–12 month), and 39% for Group 4 (>1 year following ACL tearing).
Furthermore, the results showed that the rate of cartilage damage had no significant correlation with a time interval between injury and surgery (P = 0.54). In addition, no significant correlation was found between the location of cartilage damage and the interval time after injury to surgery [Figure 3] and [Table 5].
|Table 5: Meniscal and cartilage injuries in four time groups' chondral lesion and meniscus lesion|
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The results indicated that meniscal tears increased by delay in performing surgery (P = 0.004). However, no significant relation was found between the site and pattern of meniscal injury and the time [Figure 4] and [Figure 5].
|Figure 4: Meniscus injury based on time. 0: Intact meniscus, 1: Meniscus tear, MEN: Meniscus MENL: Meniscus location|
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Moreover, the results revealed that the type of meniscus tear treatment did not change with delay in surgery (P = 0.49).
Furthermore, patients with a complete ACL tear had a significantly higher rate of meniscus injury compared to those with a partial ACL tear (0.048). However, there was no significant difference between complete and partial ACL injuries regarding the site and pattern of a meniscus tear.
| Discussion|| |
Isolated ACL tears have remained a common orthopedic injury with an annual incidence of 68.6/100,000 person-years.,, Owing to rotational knee instability after ACL rupture, chondral and meniscus injury is a major concern., In consequence, knee pain could influence one's activity, quality of life, and association with secondary knee osteoarthritis over time., In this regard, this study aimed to investigate the time of choice for ACL reconstruction to improve the postoperation results.
In 1983, Noyes et al. tried to find the best treatment for the torn ACL, and finally, they cited lack of enough data about associated injuries with the torn ACL. In 1993, Keene et al. investigated 176 consecutive patients with ACL insufficiency and concluded that there is a high incidence of meniscal injury, which could increase with chronicity of the instability, and there is an indication for early arthroscopy to diagnose the repairable tear of the medial meniscus.
The findings showed that there is a concomitant meniscal injury that might happen during primary trauma or after the ACL tear by an unstable knee. This could influence the ACL reconstruction results and accelerate the osteoarthritis formation.,,
Appropriate preoperation rehabilitation and the effect of an unstable knee on the meniscus and cartilage are challenging issues regarding ACL reconstruction. In 2002, Millett et al. studied 39 skeletally immature patients with ACL deficit to clarify the controversial issues about the time of surgery. Their results have advocated early reconstructive surgery with no point of operation time, so the ideal timing for ACL reconstruction has remained open to research.
In 2009, Granan et al. studied 3475 patients and concluded that the cartilage lesion increased by 1% every month from the time of ACL rupture to ACL reconstruction; moreover, the damage rate of the other one is about twice frequent by the presence of cartilage or meniscal lesions. The same results have been achieved by other studies.,,,
Another study conducted by TeTsuo Hayiho on 549 patients between 2006 and 2014 concluded that ACL tears occur mostly due to sports injuries. The prevalence of meniscus tear was 79% (72.7% in a phase < 8 weeks and 84.8% in a phase > 8 weeks). There is a stronger relationship between lateral meniscus tear with the acute phase of ACL tear and medial meniscus tear with the chronic phase of ACL tear. Meniscal bucket-handle tear was greater in the chronic phase. Early reconstruction of ACL is recommended for patients with ACL tear to prevent secondary meniscus tear. On the other hand, Brambilla et al. recommended that ACL reconstruction should not be delayed for more than a year after the injury because of the increased risk of meniscal tear and chondral injuries after this period.
One can mention that the results obtained through this investigation support the findings concerning the meniscal injuries mentioned by the Brambilla study. However, no evidence has been found to show the relationship between the time of surgery and chondral damage.
The investigation of further parameters in the study shows that there is not enough evidence to prove the existence of the relationship between the age of patients, the type of meniscus tear, and the level of cartilage damage. However, a significant relationship between the nature of trauma and the type of the ACL rupture have been identified.
According to the results of this study, meniscal injuries were significantly higher in patients with ACL reconstruction within 3–6 months and >12 months from the ACL tear. However, there was no significant relationship between the time of injury to repair and location and pattern of meniscal injury and consequently the operation method for ACL reconstruction.
The results of this study showed that the type of meniscus tear did not change with a delay in surgery (P = 0.49). These results are not comparable to other studies. This is because despite relevant studies, we found no relationship between time of surgery and cartilage damage. This data may affect by the short time window among our patients.
Patients with complete ACL tear had a significantly higher rate of meniscus injury compared to those with the partial ACL tear (0.048). However, there was no significant difference between complete and partial ACL injuries regarding the site and pattern of the meniscus tear.
Our analysis showed that meniscal tear increases in case of a delay to perform surgery over 3 months (P = 0.004). These data advocate early surgery within a certain period to prevent further soft-tissue damage. Moreover, this gap of time is an advantage to preoperative rehabilitation.
Furthermore, the findings of this study showed no significant relation between time of surgery and chondral damage. It seems that if we had the same groups of patients in four groups regarding number, age, and other demographic features, results might be different.
The major limitation of this study was not considering preoperative rehabilitation that may improve the outcome of ACL reconstruction and change the optimal time of surgery. Thus, further research should consider preoperative rehabilitation.
| Conclusion|| |
According to the results of the present study, there is no significant relationship between the time of surgery and the risk of chondral damage after the ACL tear over time, and patients with the ACL rupture should undergo ACL reconstruction surgery up to 3 months from knee trauma to prevent further meniscal injuries.
Financial support and sponsorship
Conflicts of interest
There are no conflicts of interest.
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[Figure 1], [Figure 2], [Figure 3], [Figure 4], [Figure 5]
[Table 1], [Table 2], [Table 3], [Table 4], [Table 5]