The Knee Society Total Knee Arthroplasty Roentgenographic Evaluation and Scoring System

Ewald, Frederick C.

doi:10.1097/00003086-198911000-00003

Cited by 1,517 publications

(956 citation statements)

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“…There were no postoperative differences between groups regarding physical function when comparing the PROMIS PF-CAT T-scores with a mean difference of 1 unit (95% CI, À3 to 1). The BCR group had a mean (SD) PF CAT T-score of 43 (8) compared with a mean score of 44 (8) in the CR group (p = 0.338). There was no difference in PROMIS Global 10 T-scores.…”

Section: Methodsmentioning

confidence: 97%

“…Component mechanical alignment, RLL, and/or fracture were evaluated postoperatively by a single orthopaedic surgeon (JB) according to the Knee Society Roentgenographic Evaluation System (KSRES) [8]. Radiographic imaging included standing AP, longstanding AP, lateral, and sunrise views.…”

Section: Methodsmentioning

confidence: 99%

“…2). The interpretation of the score has been published previously by Ewald [8] with a score of 10 or more signifying possible failure. Preoperatively, the severity of knee osteoarthritis was graded using the 0 to 4 scale as described by Kellgren and Lawrence [12].…”

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Higher Frequency of Reoperation With a New Bicruciate-retaining Total Knee Arthroplasty

Christensen

Stoddard

Anderson

et al. 2017

Clinical Orthopaedics &Amp; Related Research

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Background With as many as 25% of patients reporting residual knee symptoms after primary total knee arthroplasty (TKA), alternative implant designs and surgical techniques have been proposed to further reduce these symptoms. There is growing evidence that retention of the anterior cruciate ligament (ACL) results in more natural knee kinematics; thus, implants with more normal joint mechanics could provide improved physical function postoperatively and reduce the amount of residual symptoms. Advancements in the bicruciate-retaining (BCR) TKA implant design have been made, and based on these, we wished to compare the BCR with a more traditional cruciate-retaining (CR) implant. Questions/purposes (1) Was there a difference in the risk of reoperation after primary TKA between BCR and CR implant designs? (2) Was there a difference in the radiographic findings of radiolucent lines (RLLs) between the implant designs? (3) Was there a difference in patient-reported and clinical outcomes between the two implant designs? Methods Between January 2013 and May 2014, two surgeons performed 475 primary TKAs. During this time, 78 (16%) of these were performed with BCR implants and 294 (62%) with CR implants; the remainder were performed with anterior-stabilized or more constrained designs as a result of increased deformity and/or ligamentous deficiencies. During this period, the general indications for BCR TKA were arthritic knees with only slight to moderate deformity and sufficient ligamentous integrity of both the ACL and posterior cruciate ligament. The indications for CR TKA were similar other than these patients presented with a deficient ACL. A total of 66 (85%) of the BCR and 237 (81%) of the CR TKAs were available for followup at a minimum of 12 months or when reoperation occurred before 12 months (mean, 18 months; range, 2-32 months). With the numbers available, there were no differences between the groups in terms of age and sex, but the patients undergoing CR TKA had a greater mean body mass index (33 ± 7 versus 31 ± 5 kg/m 2 , p = 0.032). The frequency of early reoperation was compared between the groups as were radiographic evidence of RLL, patient-reported outcomes, and knee range of motion (ROM).

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Section: Methodsmentioning

confidence: 97%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Higher Frequency of Reoperation With a New Bicruciate-retaining Total Knee Arthroplasty

Christensen

Stoddard

Anderson

et al. 2017

Clinical Orthopaedics &Amp; Related Research

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“…Knee function was assessed with the Knee Society scoring system [19]. Radiographic review was performed by an independent fellowship-trained orthopaedic surgeon according to the Knee Society TKA radiographic evaluation system [13] modified for longstemmed revision prostheses [29]. Radiographs, consisting of standing AP and lateral views of the knee, were evaluated for signs of fracture, migration, and osseointegration according to the criteria of Engh et al [12].…”

Section: Methodsmentioning

confidence: 99%

Tantalum Cones Provide Durable Mid-term Fixation in Revision TKA

Martino

Santis

Sculco

et al. 2015

Clin Orthop Relat Res

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Background Multiple studies have reported favorable short-term outcomes using tantalum cones to reconstruct massive bone defects during revision TKA. However, longer-term followup is needed to determine the durability of these reconstructions. Questions/purposes We wished to determine the midterm (1) reoperation rates for septic and aseptic causes, (2) radiologic findings of osseointegration, and (3) clinical outcomes based on the Knee Society score in patients who underwent revision knee arthroplasty with tantalum cones for severe bone loss. Methods We retrospectively evaluated records of 18 patients (18 knees) who underwent revision knee arthroplasty with use of tantalum cones between 2005 and 2008; the primary indications for use of this approach were to reconstruct massive bone defects classified as Anderson Orthopaedic Research Institute Types 2B and 3. During this period, all defects of this type were treated with this approach and no cones were used for more-minor defects. A total of 26 cones (13 tibial and 13 femoral) were implanted. There were 12 female and six male patients with a mean age of 73 years (range, 55-84 years) at the time of revision. The indication for the revision included aseptic loosening (five patients) and second-stage reimplantation for deep infection (13 patients). Patients were followed for a mean of 6 years (range, 5-8 years). No patient was lost to followup. Clinical and radiographic outcomes were assessed with the Knee Society clinical rating system and radiographic evaluation system.

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“…Mean radiographic followup was 11.2 years (range, 0.6-15.6 years and median, 11.3 years). Radiographic evaluation included analysis for limb alignment and radiolucencies per the Knee Society protocol [10], osteolysis, and signs of gross polyethylene wear. Osteolysis was defined as a lesion greater than 5 mm 2 that was not present on immediate postoperative films [20].…”

Section: Methodsmentioning

confidence: 99%

Wear and Lysis is the Problem in Modular TKA in the Young OA Patient at 10 Years

Odland

Callaghan

Liu

et al. 2011

Clinical Orthopaedics &Amp; Related Research

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The Knee Society Total Knee Arthroplasty Roentgenographic Evaluation and Scoring System

Cited by 1,517 publications

References 0 publications

Higher Frequency of Reoperation With a New Bicruciate-retaining Total Knee Arthroplasty

Higher Frequency of Reoperation With a New Bicruciate-retaining Total Knee Arthroplasty

Tantalum Cones Provide Durable Mid-term Fixation in Revision TKA

Wear and Lysis is the Problem in Modular TKA in the Young OA Patient at 10 Years

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