Successful Knee Extensor Mechanism Reconstruction in a Warfare-Related Open Lower Extremity Injury Complicated by Mucormycosis Infection: A Case Report

Introduction. Reconstruction of bone defects is a long, challenging process both for the patient and for the treating surgeon. Bone defects frequently occur as a result of aggressive surgical debridement and bone resection in case of acute trauma, open fractures, chronic bone infections, tumors and non-unions. Early amputation is often superior to prolonged attempts at salvage because they can create serious problems in the patients? lives. There are numerous alternative methods of limb-salvage nowadays. Case Report. We report a case of a fifty-year-old man with a distal femoral non-union and a co-existing failure of the knee extensor mechanism, who was treated using an intramedullary segmental defect bridging knee arthrodesis system (Osteobridge). At the final check-up twenty four months later, he had excellent clinical, functional and radiological results. Conclusion. Osteobridge is an excellent knee arthrodesis system, which is preferable to other methods in case of resection of the distal femur along with the failure of the knee extensor mechanism.

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Salvage of the Lower Limb after a Full Thickness Burn with Loss of the Knee Extensor Mechanism: A Case Report

Journal of Orthopaedic Surgery ◽

10.1177/230949901302100131 ◽

2013 ◽

Vol 21 (1) ◽

pp. 122-124

Author(s):

Khaled M Sarraf ◽

Duncan D Atherton ◽

Asantha R Jayaweera ◽

Charles E Gibbons ◽

Isabel Jones

Keyword(s):

Case Report ◽

Lower Limb ◽

Knee Extensor ◽

Extensor Mechanism ◽

Full Thickness ◽

Knee Extensor Mechanism

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Bifocal disruption of the knee extensor mechanism: a case report and literature review

Archives of Orthopaedic and Trauma Surgery ◽

10.1007/s00402-013-1696-7 ◽

2013 ◽

Vol 133 (4) ◽

pp. 517-521 ◽

Cited By ~ 6

Author(s):

Suk Kang ◽

Phil Hyun Chung ◽

Young Sung Kim ◽

Ho Min Lee ◽

Jong Pil Kim

Keyword(s):

Case Report ◽

Literature Review ◽

Knee Extensor ◽

Extensor Mechanism ◽

Knee Extensor Mechanism

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Concussion in National Football League Athletes Is Not Associated With Increased Risk of Acute, Noncontact Lower Extremity Musculoskeletal Injury

Orthopaedic Journal of Sports Medicine ◽

10.1177/23259671211003491 ◽

2021 ◽

Vol 9 (5) ◽

pp. 232596712110034

Author(s):

Toufic R. Jildeh ◽

Fabien Meta ◽

Jacob Young ◽

Brendan Page ◽

Kelechi R. Okoroha

Keyword(s):

Lower Extremity ◽

National Football League ◽

Field Performance ◽

Return To Play ◽

Lower Extremity Injury ◽

Extremity Injury ◽

Lower Extremity Injuries ◽

Increased Risk ◽

Extremity Injuries ◽

And Control

Background: Impaired neuromuscular function after concussion has recently been linked to increased risk of lower extremity injuries in athletes. Purpose: To determine if National Football League (NFL) athletes have an increased risk of sustaining an acute, noncontact lower extremity injury in the 90-day period after return to play (RTP) and whether on-field performance differs pre- and postconcussion. Study Design: Cohort study, Level of evidence, 3. Methods: NFL concussions in offensive players from the 2012-2013 to the 2016-2017 seasons were studied. Age, position, injury location/type, RTP, and athlete factors were noted. A 90-day RTP postconcussive period was analyzed for lower extremity injuries. Concussion and injury data were obtained from publicly available sources. Nonconcussed, offensive skill position NFL athletes from the same period were used as a control cohort, with the 2014 season as the reference season. Power rating performance metrics were calculated for ±1, ±2, and ±3 seasons pre- and postconcussion. Conditional logistic regression was used to determine associations between concussion and lower extremity injury as well as the relationship of concussions to on-field performance. Results: In total, 116 concussions were recorded in 108 NFL athletes during the study period. There was no statistically significant difference in the incidence of an acute, noncontact lower extremity injury between concussed and control athletes (8.5% vs 12.8%; P = .143), which correlates with an odds ratio of 0.573 (95% CI, 0.270-1.217). Days (66.4 ± 81.9 days vs 45.1 ± 69.2 days; P = .423) and games missed (3.67 ± 3.0 vs 2.9 ± 2.7 games; P = .470) were similar in concussed athletes and control athletes after a lower extremity injury. No significant changes in power ratings were noted in concussed athletes in the acute period (±1 season to injury) when comparing pre- and postconcussion. Conclusion: Concussed, NFL offensive athletes did not demonstrate increased odds of acute, noncontact, lower extremity injury in a 90-day RTP period when compared with nonconcussed controls. Immediate on-field performance of skill position players did not appear to be affected by concussion.

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