A study of the possible effect of abnormal patella height on meniscal tears

Vampertzis, Themistoklis; Barmpagianni, Christina; Nitis, Georgios; Papastergiou, Stergios

doi:10.1016/j.jor.2020.04.012

Cited by 7 publications

(9 citation statements)

References 19 publications

(48 reference statements)

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“…17 22 One recent study assessed patellar height in those with meniscal tears and found that 20% of patients had an abnormal patellar height. 23 The mechanism for which the meniscal damage occurs due to the increased patellar height has not been explored.…”

Section: Discussionmentioning

confidence: 99%

Association between Patellofemoral Anatomy and Chondral Lesions of the Knee in Patellofemoral Instability

et al. 2021

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Chondral injury is a serious consequence of patellar dislocation and patellofemoral instability (PFI). There is limited data on the relationship between radiological features such as sulcus angle and patellar height to the presence, location, and severity of chondral lesions. The purpose of this study was to determine the association of anatomical variants in patellofemoral instability with injuries sustained due to patellar dislocation. A cohort of 101 patients who had four or more episodes of dislocation or instability undergoing isolated arthroscopy or arthroscopies at the time of corrective realignment surgery were identified. The prevalence of chondral, ligamentous, and meniscal injuries was determined and correlated to the sulcus angle, tibial tubercle trochlear groove distance, and patellar height on magnetic resonance imaging (MRI) scans. A total of 101 patients was identified. At arthroscopy, the patella demonstrated the highest incidence of chondral injury (68%) followed by the trochlear groove (40%). Lateral meniscal injuries were noted in 6% of patients, medial meniscal injuries in 2%, and anterior cruciate ligament (ACL) injury in 3%. Chondral injuries were graded using the Outerbridge criteria and there was a correlation between more severe chondral injuries and a greater tilt angle (p = 0.05). The occurrence of injury to the lateral meniscus was associated with a higher Insall–Salvati ratio (p = 0.05). More severe chondral injuries are seen in patients with a greater tilt angle.

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Section: Discussionmentioning

confidence: 99%

Association between Patellofemoral Anatomy and Chondral Lesions of the Knee in Patellofemoral Instability

et al. 2021

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“…The effects of abnormal patellar height are reported to be related to patellar instability, chondromalacia patella, patellofemoral arthrosis, and ACL injury (8)(9)(10). Meniscal injuries are very common, and the link between the anatomical characteristics of the knee joint and meniscal injuries has been analyzed in several studies (6,7,12). However, the relationship between patellar height and isolated meniscal injuries has not yet been assessed with MRI evaluation.…”

Section: Discussionmentioning

confidence: 99%

“…The only study that evaluated the relationship between patellar height and isolated meniscal injuries was conducted by Vampertzis et al (6). They evaluated patellar height using the Insall-Salvati method in knee radiographs of 100 patients with meniscal tears and found that 20% of the patients with meniscal tears had an abnormal patellar height, whereas 16% and 4% of the patients had abnormal patella alta and patella baja ratios, respectively.…”

Section: Discussionmentioning

confidence: 99%

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Is Abnormal Patella Height a Predisposing Factor for Isolated Meniscal Tears?

Tunalı¹,

Valiyev²,

Karaytuğ³

2022

jmed

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Objective: The relationship between patellar height and knee pathologies has been assessed in the literature. However, the relationship with isolated meniscal tears has not been evaluated. This study aims to evaluate whether or not patellar height is a predisposing factor for isolated medial or lateral meniscal tear. Material and Methods:The consecutive 411 patients who had magnetic resonance imaging between 2018-2020 were evaluated retrospectively. The patients between 18 and 50 years of age with isolated medial or lateral meniscal tear were included. The patients without any meniscal tear or ligament injury formed the control group. The 160 patients included in the study were divided into three groups: 65 medial meniscus, 30 lateral meniscus, and 65 control group. Patellar height was measured with the Insall-Salvati method by two orthopedic surgeons twice, with an interval of one month.Results: All of the groups were similar in terms of age and gender (p>0,05). Patellar length (p=0.252), patellar tendon length (p=0.059), and Insall-Salvati ratios (p=0.810) of all groups did not show any significant difference. The abnormal patellar height rates were similar in the medial meniscus and control groups (12.4%-13.9%), while abnormal patella height (33.4%), especially patella baja, was observed more frequently in the lateral meniscus group. However, no statistically significant difference was found. A significant strong correlation was observed between and within the observers' measurements (p=0.000). Conclusion:Abnormal patella height, especially patella baja, was observed more frequently in the isolated lateral meniscus group. Abnormal patellar height could be a predisposing factor for isolated lateral meniscal tear.

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“…Patellar height plays an important role in the transmission of mechanical forces to the knee joint. However, the relationship between abnormal patella height and meniscal lesions is unclear (6). Lin et al (7) found the ISI ratio in patients with ACL tears was less than in the healthy control group.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Evaluation of Anatomical Variations with Morphological Measurements and Their Relationship to Meniscal Injury and Ligament Damage

Oğuzdoğan

Arslan

2022

J Knee Surg

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Introduction: The purpose of this study was to reveal the anatomical risk factors for anterior and posterior cruciate ligament (ACL and PCL) injuries and menisci injury. We aim to investigate whether there are significant relationship between tibial tubercle-trochlear groove distance distance (TT-TG), patella angle, trochlear sulcus angle (TSA), trochlear groove depth (TGD), medial and lateral trochlea length (MT and LT), MT/LT ratio, lateral patellar tilt angle (LPTA), patella-patellar tendon angle (P-PTA), quadriceps-patellar tendon angle (QPA), Insall-Salvati index (ISI), medial and lateral trochlear inclination (MTI and LTI) measurements and important common pathologies such as ACL, PCL, medial and lateral meniscal injuries (MM and LM), peripatellar fat pad edema, chondromalacia and effusion. Thus, the mechanisms of injury will be better understood by revealing important anatomical variations for meniscus and ligament damage. Material and Methods: Three hundred eighty patients with knee magnetic resonance imaging examination included in this study. Our patients who underwent knee MRI were divided into groups according to the presence of MM tear, LM tear, ACL tear, PCL tear, peripatellar fat pad edema, chondromalacia and effusion. TT-TG distance, patella angle, TSA, TGD, MT, LT, MT/LT ratio, LPTA, P-PTA, QPA, ISI, MTI and LTI were measured. Results: In patients with ACL tear; age, LT, ML/LT ratio and QPA measurements were found to be significantly higher. There was no significant difference between the participants' LPTA value and the presence of ACL tear, MM and LM injury. MT and ML/LT ratio were found to be significantly lower in the group with MM tear (p<0.001). The TT-TG distance was found to be significantly lower in the group with LM tear. Conclusion: Increased age, LT, ML/LT ratio and QPA are predispose risk for ACL tear. Decreased MT and ML/LT ratio are among the risk factors for MM tear. The anatomical variations are associated with ligamant and meniscal injury.

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A study of the possible effect of abnormal patella height on meniscal tears

Cited by 7 publications

References 19 publications

Association between Patellofemoral Anatomy and Chondral Lesions of the Knee in Patellofemoral Instability

Association between Patellofemoral Anatomy and Chondral Lesions of the Knee in Patellofemoral Instability

Is Abnormal Patella Height a Predisposing Factor for Isolated Meniscal Tears?

Evaluation of Anatomical Variations with Morphological Measurements and Their Relationship to Meniscal Injury and Ligament Damage

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