Patello-femoral clunk syndrome-current concepts

Gopinathan, Patinharayil

doi:10.1016/j.jor.2014.05.001

Cited by 12 publications

(11 citation statements)

References 18 publications

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“…The patellar button was placed on the medial border of the cut surface 15) and the uncovered bone of the lateral facet was sawed off to prevent lateral facet syndrome 16) . All synovium in the supra and infra patellar region was excised to prevent patellar crepitus or clunk 17 , 18) . Femoral component rotation was adjusted perpendicular to Whiteside line and parallel to the transepicondylar axis in all knees.…”

Section: Methodsmentioning

confidence: 99%

Safety and Efficacy of 6.2 mm Patellar Button in Resurfacing Less than 20 mm Thin Patella: A Matched Pair Analysis

Jhurani

Agarwal

Aswal

et al. 2018

Knee Surg Relat Res

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PurposeRestoring the native patellar thickness after patellar resurfacing provides optimal function of the knee after arthroplasty and minimises complications related to the patellofemoral articulation. The aim of this study was to assess the usefulness of a thin patellar button (6.2 mm) in patients with a patella thickness of less than 20 mm during total knee arthroplasty.Materials and MethodsThis is a retrospective case control study. A total of 54 female patients with an intraoperative patellar thickness of <20 mm, resurfaced with a patellar button of 6.2 mm in thickness were identified (group 1). They were matched with 54 patients with a patellar thickness of 20–23 mm, resurfaced with a patellar button of 8 mm (group 2), based on age, sex, body mass index, and deformity. A clinical and radiological evaluation was done at a minimum 2-year follow-up.ResultsThe preoperative mean patellar thickness was 18.94±1.07 mm and was restored to 19.06±0.79 mm in group 1, as compared to 21.63±0.99 mm and 21.72±0.99 mm in group 2. The mean postoperative range of motion was 122.22°±9.25° in group 1 and 123.52°±8.72° in group 2 (p=0.13). No patellar bone or button related complications were observed in any patient in either group.ConclusionsThe 6.2 mm thin patella is useful to restore the native thickness in patients with a patellar thickness of less than 20 mm without risk of button fracture, loosening or overstuffing.

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Section: Methodsmentioning

confidence: 99%

Safety and Efficacy of 6.2 mm Patellar Button in Resurfacing Less than 20 mm Thin Patella: A Matched Pair Analysis

Jhurani

Agarwal

Aswal

et al. 2018

Knee Surg Relat Res

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“…The patient presents with painful catching or jumping of the patella upon extension. 90 A synovial nodule can be seen by MRI in 75% of patients presenting with patellar clunk syndrome (►Fig. 15).…”

Section: Fracture and Dislocationmentioning

confidence: 99%

Update on Imaging of Knee Arthroplasties: Normal Findings and Hardware Complications

Mar

Tan²,

Song

et al. 2019

Semin Musculoskelet Radiol

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Total knee arthroplasty (TKA) is the most common joint replacement performed. This article reviews the normal appearance of TKA including the most common types of arthroplasties as well as complications. Common complications at the present time are infection, aseptic loosening, and instability. Rarer complications such as polyethylene wear, periprosthetic fracture, and soft tissue pathology are also discussed. Although the mainstay of imaging is radiographs, newer techniques in TKA imaging such as computed tomography and magnetic resonance imaging are also reviewed.

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“…The formation of a proliferative fibrous suprapatellar nodule on the articular side, that is entrapped in the intercondylar notch of the femoral component when the knee is flexed and displace during extension, causing the clunk [4] . A lot of etiologies have been reported such as previous knee surgery, femoral component designs with high intercondylar box ratio, reduced patellar tendon length, reduced patellapatellar component composite thickness, thinner patellar components, and smaller femoral components [5] . First of all, other etiologies of post-operative knee pain after TKA should be eliminated.…”

Section: Case Reportmentioning

confidence: 99%

“…After resection of the fibrous nodule, immediate disappearance of the symptoms is usually observed with good functional outcome [2,7] . Preventative measures have been reported including debridement of the fibro-synovial suprapatellar soft tissue at the time of TKA, choice of femoral components with a reduced intercondylar box ratio, avoidance of over-resection of the patella, and use of thicker patellar components [5] .…”

Section: Case Reportmentioning

confidence: 99%

Patellar clunk syndrome: A rare cause of painful knee after total knee arthroplasty

Triki¹,

Benzarti²,

Kaziz³

et al. 2018

Int. J. Orthop. Sci.

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Although total knee arthroplasty is a successful procedure, postoperative residual knee pain after total knee arthroplasty is still the major factor that contributes to patient dissatisfaction. Even after resurfacing the patella, residual anterior knee pain is the most frequent complaint. Numerous etiologies have been associated with residual pain, including mid-flexion instability, aseptic loosening, infection, and patellar maltracking due to component malalignment. Other rare etiologies like patellar clunk syndrome could also cause residual knee pain after total knee arthroplasty. Through this case report of a patellar clunk syndrome successfully treated with arthroscopic resection, we discuss the etiopathogeny, diagnostic challenge, and treatment of this rare entity.

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Patello-femoral clunk syndrome-current concepts

Cited by 12 publications

References 18 publications

Safety and Efficacy of 6.2 mm Patellar Button in Resurfacing Less than 20 mm Thin Patella: A Matched Pair Analysis

Safety and Efficacy of 6.2 mm Patellar Button in Resurfacing Less than 20 mm Thin Patella: A Matched Pair Analysis

Update on Imaging of Knee Arthroplasties: Normal Findings and Hardware Complications

Patellar clunk syndrome: A rare cause of painful knee after total knee arthroplasty

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