High rate of recurrent patellar dislocation in skeletally immature patients: a long-term population-based study

Sanders, Thomas L.; Pareek, Ayoosh; Hewett, Timothy E.; Stuart, Michael J.; Dahm, Diane L.; Krych, Aaron J.

doi:10.1007/s00167-017-4505-y

Cited by 100 publications

(142 citation statements)

References 30 publications

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“…2,3 Studies have shown that lateral patellar instability patients are at risk of recurrence for up to 5 to 10 years, whereas most published studies perform 2 years' follow-up, which underestimates recurrence rates. 4 The MPFL site of injury appears multifocal, and thus, repair depends on accurate diagnosis of the location of injury. A magnetic resonance imaging study by Zhang et al 5 looked at the site of MPFL injury in pediatric patients and concluded that isolated femoral avulsion occurred in 32%, isolated patellar avulsion occurred in 39% and ligament stretch occurred in 4%; however, in 25%, there was more than 1 site of injury.…”

Section: See Related Article On Page 2909mentioning

confidence: 99%

Editorial Commentary: Medial Patellofemoral Ligament Repair Versus Reconstruction: Still a Question or a Clear Winner?

Strickland

2019

Arthroscopy: The Journal of Arthroscopic & Related Surgery

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Section: See Related Article On Page 2909mentioning

confidence: 99%

Editorial Commentary: Medial Patellofemoral Ligament Repair Versus Reconstruction: Still a Question or a Clear Winner?

Strickland

2019

Arthroscopy: The Journal of Arthroscopic & Related Surgery

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“…Patellar dislocation is a common disease among children and teenagers, and the incidence is over 30 per 100 000. Up to 71% of these patients may develop recurrent patellar instability, and 20% go on to suffer patellofemoral arthritis [6,7,8,9].…”

Section: Introductionmentioning

confidence: 99%

The Morphology of Patella changed significantly after Soft Tissue Correction for children with Recurrent Patella Dislocation

Niu

Hao

et al. 2020

Preprint

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Background: Although morphological improvement of femoral trochlea has been investigated in children with patellar dislocation after surgery, whether the patellar shape changed under the same condition is still unknown. The purpose of the study was to investigate the changes of patella morphology in transverse plane following surgical correction of recurrent patella dislocation in children.Methods: A total of 22 patients with a mean age of 9.9 years (7 to 12) were included. All had unilateral recurrent patella dislocation. The knees with recurrent patellar dislocation were treated with medial patellar retinaculum plasty and defined as the affected side. The contralateral knees with no symptom of patellar instability were considered as the unaffected side. All patients were treated between October 2014 and August 2018. Axial CT (Computed Tomography) scans were undertaken in all patients to assess the patella morphological characteristics on a particular axial image preoperatively and at the final follow-up.Results: There were not significant differences about patellar transverse diameter, thickness and Wiberg angle between affected side and unaffected side before surgery and at the last follow-up respectively ( The mean follow-up period: 28.0 ± 3.3 months). However, before surgery, the Wiberg-index in the affected side (0.74 ± 0.06) was significantly different from that in the unaffected side (0.64 ± 0.04). At the last follow-up, the Wiberg-index in the affected side (0.67 ± 0.05) and the unaffected side (0.65 ± 0.04) were not significantly different. Also, in the affected side, the Wiberg-index at the last follow-up was significantly lower than that before surgery (P < 0.05). The Wiberg-index in the unaffected side was not significantly different before surgery and at the last follow-up. Conclusion: The patella morphology can change significantly after surgical procedures in children with patellar recurrent dislocation whose epiphysis is not closed.

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“…Patella dislocation is a common disease among children and teenagers, and the incidence is over 30 per 100 000. Up to 71% of these patients may develop recurrent patella instability, and 20% go on to suffer patellofemoral arthritis [6,7,8,9].…”

Section: Introductionmentioning

confidence: 99%

The Morphology of Patella changed significantly after Soft Tissue Correction for children with Recurrent Patella Dislocation

Niu

Hao

et al. 2020

Preprint

View full text Add to dashboard Cite

Background: Although morphological improvement of femoral trochlea has been investigated in children with patella dislocation after surgery, whether the patellar shape changed under the same condition is still unknown. The purpose of the study was to investigate the changes of patella morphology in transverse plane following surgical correction of recurrent patella dislocation in children.Methods: A total of 22 patients with a mean age of 9.9 years (7 to 12) were included. All had unilateral recurrent patella dislocation. The knees with recurrent patella dislocation were treated with medial patellar retinaculum plasty and defined as the study group. The contralateral knees with no symptom of patellar instability were considered as the control group. All patients were treated between October 2014 and August 2018. Axial CT (Computed Tomography) scans were undertaken in all patients to assess the patella morphological characteristics on a particular axial image preoperatively and at the final follow-up.Results: There are not significant differences about patellar transverse diameter, thickness and Wiberg angle between study group and control group before surgery and at the last follow-up respectively ( The mean follow-up period: 28.0 ± 3.3 months). However, before surgery, the Wiberg-index in the study group (0.74 ± 0.06) is significantly different from that in the control group (0.64 ± 0.04). At the last follow-up, the Wiberg-index in the study group (0.67 ± 0.05) and the control group (0.65 ± 0.04) are not significantly different. Also, in the study group, the Wiberg-index at the last follow-up is significantly lower than that before surgery (P ＜ 0.05). The Wiberg-index in the control group is not significantly different before surgery and at the last follow-up. Conclusion: The patella morphology can change significantly after surgical procedures in children (before epiphyseal closure) with patellar recurrent dislocation

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High rate of recurrent patellar dislocation in skeletally immature patients: a long-term population-based study

Abstract: Retrospective case series, Level IV.

Cited by 100 publications

References 30 publications

Editorial Commentary: Medial Patellofemoral Ligament Repair Versus Reconstruction: Still a Question or a Clear Winner?

Editorial Commentary: Medial Patellofemoral Ligament Repair Versus Reconstruction: Still a Question or a Clear Winner?

The Morphology of Patella changed significantly after Soft Tissue Correction for children with Recurrent Patella Dislocation

The Morphology of Patella changed significantly after Soft Tissue Correction for children with Recurrent Patella Dislocation

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