Dislocation, following total knee arthroplasty

Vaishya, Raju; Landge, Vikrant; Ahmad, Shiraz; Neupane, Gaurav

doi:10.4103/0019-5413.80051

Cited by 4 publications

(2 citation statements)

References 5 publications

(7 reference statements)

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“…Knee dislocation after TKA is rare but easily overlooked and can lead to serious complications and permanent disability; hence, it must be addressed early and managed appropriately [ 2 ] [ 3 ] [ 4 ], [ 7 ] [ 8 ], [ 9 ]. There are some symptoms that could alert the surgeon of the possibility of knee dislocation or a problem with the insert, such as pain, clicking, locking sensations, or sudden instability [ 3 ].…”

Section: Discussionmentioning

confidence: 99%

“…Since this first report by Insall et al, cases of dislocation in knee arthroplasties have suggested different causes. Although tibiofemoral instability has typically been reported with cruciate-retaining prostheses, it is well-known that dislocation of TKA can occur with both cruciate retaining and cruciate substituting TKAs [ 8 ]. For severe knee deformities and collateral insufficiency, constrained polyethylene inserts can be used to provide stable, mobile knees and overcome the deformities that can occur with CR and PS prostheses.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Posterior dislocation of a constrained total knee arthroplasty: A case report

Alatassi

Alattas

Koaban

et al. 2018

Annals of Medicine and Surgery

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IntroductionDislocation of the knee after primary total knee arthroplasty is rare in a posterior stabilized knee and extremely rare in a constrained total knee arthroplasty. Constrained total knee prostheses are used for severe knee deformities and to provide stable and mobile knees.Presentation of caseIn this case, we describe a dislocation of a primary constrained total knee arthroplasty using the Genesis II (Smith & Nephew, Memphis Tennessee, USA) prosthesis. Without any significant trauma, the constrained insert dislocated fifteen months after surgery and revision surgery with a bigger insert was needed. Surgical error may have been the cause of dislocation, but we were unable to establish a clear reason behind this dislocation.DiscussionKnee dislocation after TKA is rare but easily overlooked and can lead to serious complications and permanent disability. This system should provide stable and mobile knees to correct collateral ligament laxity.ConclusionHere, we report the first case, to our knowledge, of dislocation with a constrained prosthesis without any history of trauma.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Posterior dislocation of a constrained total knee arthroplasty: A case report

Alatassi

Alattas

Koaban

et al. 2018

Annals of Medicine and Surgery

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Response to Letter to the Editor on ‘Tibiofemoral Dislocation After Total Knee Arthroplasty’

Jethanandani

Maloney

Huddleston

et al. 2017

The Journal of Arthroplasty

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Letter to the Editor on ‘Tibiofemoral Dislocation After Total Knee Arthroplasty’

Vaishya

Vijay

Agarwal

2017

The Journal of Arthroplasty

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placed in diagnosis related group (DRG) 469 rather than 470 due to new diagnoses assigned during the patients' hospitalization for surgery.All patients in the hospitalist group were optimized prior to surgery in our preoperative center. An anesthesiologist performed the initial screening, and an internist also evaluated the patients [1]. One may assume that most pertinent diagnoses were documented at this time. Given the decreased length of stay in the hospitalist group, and the fact that the increased cost was attributed to testing rather than intervention, the clinical relevance of these new diagnoses is questionable. However, we did not record the patients' DRG. This would have enabled us to definitively determine if more patients in the hospitalist group were placed into better paying DRG 469.Assuming the hospital did receive increased payment, one must also consider the overall cost to the health care system. Searching for more diagnoses, which do not affect the course of the hospitalization for the purpose of increasing hospital reimbursement, places a financial burden on the payors. This burden will eventually be passed down to the hospitals, physicians, and patients. In conclusion, we still believe that in the patient population studied, the increased number of postoperative diagnoses adds unnecessary cost and may adversely affect physician and hospital rankings, which in the long run will have more of a negative impact than any short-term gain in reimbursement.

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Dislocation, following total knee arthroplasty

Cited by 4 publications

References 5 publications

Posterior dislocation of a constrained total knee arthroplasty: A case report

Posterior dislocation of a constrained total knee arthroplasty: A case report

Response to Letter to the Editor on ‘Tibiofemoral Dislocation After Total Knee Arthroplasty’

Letter to the Editor on ‘Tibiofemoral Dislocation After Total Knee Arthroplasty’

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