Database : MEDLINE
Search on : Patellar and Dislocation [Words]
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[PMID]: 23800782
[Au] Autor:Wangdee C; Theyse LF; Techakumphu M; Soontornvipart K; Hazewinkel HA
[Ad] Address:Chalika Wangdee, DVM, MS, Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 108, 3584 CM Utrecht, The Netherlands, Phone: +31 30 253 5752, Fax: +31 30 251 8126, E-mail: C.Wangdee1@uu.nl; C.Wangdee@hotmail.com.
[Ti] Title:Evaluation of surgical treatment of medial patellar luxation in Pomeranian dogs.
[So] Source:Vet Comp Orthop Traumatol;26(6):435-9, 2013.
[Is] ISSN:0932-0814
[Cp] Country of publication:Germany
[La] Language:eng
[Ab] Abstract:In a prospective study, the outcome of surgical correction of medial patellar luxation of 70 stifle joints in 55 Pomeranian dogs was evaluated. Trochlear block recession alone was performed in 46 stifle joints, or in combination with tibial tuberosity transposition in 24 stifle joints in cases with grade II, III or IV medial patellar luxation. Additional procedures were performed to restore lateral and medial retinacular function. The recurrence of patellar luxation and the degree of lameness were evaluated up to at least 16 weeks after surgery. The overall recurrence rate was 10%. The outcome of surgery was considered good for grade II luxation with a 100% success rate. Recurrent medial patellar luxation was diagnosed in approximately 11% of dogs with grade III and in 36% of dogs with grade IV luxation. The postoperative lameness score decreased significantly in comparison with the preoperative score at four weeks and thereafter until the end of the study.
[Mh] MeSH terms primary: Dog Diseases/surgery
Patellar Dislocation/veterinary
[Mh] MeSH terms secundary: Animals
Body Size
Dogs
Female
Male
Patellar Dislocation/surgery
Postoperative Complications/veterinary
Treatment Outcome
[Pt] Publication type:CLINICAL TRIAL; JOURNAL ARTICLE
[Em] Entry month:1407
[Js] Journal subset:IM
[Da] Date of entry for processing:131112
[St] Status:MEDLINE
[do] DOI:10.3415/VCOT-12-11-0138

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[PMID]: 24901727
[Au] Autor:Mirzatolooei F
[Ad] Address:Department of Orthopedic Surgery, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran. fardin_tolouei@yahoo.com.
[Ti] Title:Patellofemoral ligament reconstruction in a patient with Rubinstein-Taybi syndrome.
[So] Source:Acta Med Iran;52(3):228-30, 2014.
[Is] ISSN:1735-9694
[Cp] Country of publication:Iran
[La] Language:eng
[Ab] Abstract:Recurrent dislocation of patella may occur in patients with ligament laxity. Method of treatment in this condition is controversial but patellofemoral ligament reconstruction is the most accepted method. We present a patient with Rubinstein-Taybi syndrome and recurrent patellar dislocation who managed successfully by patellofemoral ligament reconstruction.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1406
[Js] Journal subset:IM
[St] Status:In-Process

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[PMID]: 24707613
[Au] Autor:Vidal-Rodríguez FA; Rosas-Sánchez GA
[Ti] Title:Anteromedialización en el tratamiento de la rótula alta y lateralizada en el adulto. [Anteromedialization in the treatment of high-riding and lateralized patella in adults].
[So] Source:Acta Ortop Mex;27(4):240-5, 2013 Jul-Aug.
[Is] ISSN:2306-4102
[Cp] Country of publication:Mexico
[La] Language:spa
[Ab] Abstract:INTRODUCTION: A study conducted at our hospital showed that patellofemoral instability associated with a high-riding and lateralized patella occurred in 34 out of 4,954 admitted patients (6.86% rate). In order to treat these alterations we studied a series of patients in whom an anteromedialization technique was used. MATERIAL AND METHODS: This is a prospective, cross-sectional, descriptive cohort study, with probabilistic sampling, conducted between March 1st, 2009 and September 1st, 2011. Twenty patients who met the inclusion criteria were selected. The same technique was used in all patients, performed by the same surgeon, with the same postoperative and rehabilitation protocol. The modified Lyshom scale was applied and the results were assessed by two blinded observers whose concordance was assessed with the Kappa index. RESULTS: Twenty patients were treated, 12 females and 8 males; mean age was 20 years. In 14 patients the dislocating event occurred in one of the knees and in 6 patients it was bilateral; the right side predominated. Dislocation was recurrent in 7 patients and relapsing in 13; 12 of the latter had undergone soft tissue realignment and lateral retinaculum release, and one patellar advancement. The mean clinical Q angle was 18 degrees preoperatively and 7 degrees postoperatively. The preoperative and postoperative radio- graphic assessment was equivalent to a Kappa of 88%. Mean healing time of the osteotomy was 8 weeks; 2 hemarthroses occurred in the immediate postoperative period, which were resolved with puncture; no fractures and no graft collapses were reported. The mean Lysholm scale was 90.9 at 6 months (interobserver kappa of 90%). All patients had quadriceps atrophy of 1-2 cm, one patient had residual pain and by the end of the study none of the patients had had relapsing dislocation. CONCLUSIONS: This technique corrects the dislocation resulting from a high-riding and lateralized patella by modifying the Q angle. It involves minimal complications, uses a small 5 cm approach and does not require special guides. This study remains open to long-term follow-up to detect the presence or absence of patellofemoral arthrosis.
[Mh] MeSH terms primary: Patellar Dislocation/surgery
[Mh] MeSH terms secundary: Cohort Studies
Cross-Sectional Studies
Female
Humans
Male
Orthopedic Procedures/methods
Prospective Studies
Questionnaires
Young Adult
[Pt] Publication type:ENGLISH ABSTRACT; JOURNAL ARTICLE
[Em] Entry month:1407
[Js] Journal subset:IM
[Da] Date of entry for processing:140408
[St] Status:MEDLINE

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[PMID]: 24200447
[Au] Autor:Wang CH; Shu L; Ma LF; Zhou JW; Ji G; Wang F; Wang J
[Ti] Title:Medial and lateral retinaculum plasty for congenital patellar dislocation due to small patella syndrome.
[So] Source:Orthopedics;36(11):e1418-23, 2013 Nov.
[Is] ISSN:1938-2367
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:The objective of this study was to explore the clinical effect of medial and lateral retinaculum plasty for congenital patellar dislocation due to small patella syndrome. Twelve patients with congenital patellar dislocation due to small patella syndrome treated at the authors' hospital between January 2005 and February 2010 were enrolled in the study. The study group comprised 4 men (4 knees) and 8 women (8 knees) with an average age of 10.58±6.91 years. All patients underwent medial and lateral retinaculum plasty. Clinical evaluation included the number of patellar redislocations, patellar apprehension sign, Kujala score, subjective questionnaire score, and patella lateral shift and patellar tilt angle measured using a cross-sectional computed tomography scan. All patients were followed up, and the shortest follow-up time was 2 years. Kujala scores improved from 49.20±6.20 preoperatively to 80.10±5.80 postoperatively. Subjective questionnaire scores indicated that the excellent and good rate was 75%. In addition, a significant difference existed in the patellar tilt angle and patella lateral shift between pre- and postoperative results (P<.05). Medial and lateral retinaculum plasty for patients with congenital patellar dislocation due to small patella syndrome can be effective to correct the tracking of the patellofemoral joint and improve knee function.
[Mh] MeSH terms primary: Bone Diseases, Developmental/complications
Hip/abnormalities
Ischium/abnormalities
Orthopedic Procedures/methods
Patella/abnormalities
Patellar Dislocation/surgery
[Mh] MeSH terms secundary: Adolescent
Adult
Child
Child, Preschool
Female
Humans
Male
Patellar Dislocation/congenital
Retrospective Studies
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1407
[Js] Journal subset:IM
[Da] Date of entry for processing:131108
[St] Status:MEDLINE
[do] DOI:10.3928/01477447-20131021-25

  5 / 1290 MEDLINE  
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[PMID]: 24636710
[Au] Autor:Cheng B; Wu X; Ge H; Qing Sun Y; Zhang Q
[Ad] Address:Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 301 Yanchang Middle Road, Shanghai 200072, China. ghahayeah@163.com.
[Ti] Title:Operative versus conservative treatment for patellar dislocation: a meta-analysis of 7 randomized controlled trials.
[So] Source:Diagn Pathol;9:60, 2014.
[Is] ISSN:1746-1596
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:PURPOSE: Patellofemoral pathology is common, and patellofemoral dislocation mainly affects adolescents and young adults. We conducted a meta-analysis exclusively of RCTs to compare the clinical outcomes of patellar dislocation patients managed operatively versus non-operatively. METHODS: After systematic review of electronic databases and websites, a total of 7 RCTs reporting data on 402 subjects were included. The methodological quality of the literature was assessed using the PEDro critical appraisal tool. Mean differences (MDs) and risk ratio (RR) were calculated for the pooled effects. Heterogeneity was assessed using the I2 test. RESULTS: Data synthesis showed a lower rate of recurrent patellar dislocation post-treatment in patients managed operatively compared to non-operatively (P=0.01). CONCLUSION: The results suggest a difference in outcomes between the treatment strategies. However the limited number of studies and high risk of inherent bias indicate that future studies involving more patients in better-designed randomized controlled trials will be required. VIRTUAL SLIDES: The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/8011948721221355.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1406
[Js] Journal subset:IM
[St] Status:In-Process
[do] DOI:10.1186/1746-1596-9-60

  6 / 1290 MEDLINE  
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[PMID]: 24229435
[Au] Autor:Yan D; Yang J; Pei F
[Ti] Title:Total knee arthroplasty treatment of rheumatoid arthritis with severe versus moderate flexion contracture.
[So] Source:J Orthop Surg Res;8:41, 2013.
[Is] ISSN:1749-799X
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:BACKGROUND: This study aims to explore the technique of soft tissue balance and joint tension maintenance in total knee arthroplasty (TKA) for the rheumatoid arthritis (RA) patients with flexion contracture of the knee. METHODS: This retrospective study reviewed flexion contracture deformity of RA patients who underwent primary TKA and ligament and soft tissue balancing. Based on the flexion contracture deformity, the remaining 76 patients available for analysis were divided into two groups, i.e., severe flexion group (SF) and moderate flexion group (MF). RESULTS: There were no intraoperative complications in this study. All patients had improved Knee Society Rating System scores and range of motion. The flexion contracture was completely corrected in MF and SF patients. There were no cases of patellar dislocation, but three cases had mild mediolateral instability in severe flexion group. Four knees (two knees in SF versus two knees in MF) had transient peroneal nerve palsy but recovered after conservative therapy. CONCLUSIONS: TKA can be performed successfully in the RA knees with severe flexion contracture. It is very important in TKA to maintain the joint stability in the condition of severe flexion contracture deformity of the RA knee.
[Mh] MeSH terms primary: Arthritis, Rheumatoid/surgery
Arthroplasty, Replacement, Knee/methods
[Mh] MeSH terms secundary: Adult
Arthritis, Rheumatoid/complications
Arthritis, Rheumatoid/physiopathology
Arthritis, Rheumatoid/radiography
Arthroplasty, Replacement, Knee/adverse effects
Contracture/etiology
Contracture/physiopathology
Contracture/radiography
Contracture/surgery
Female
Humans
Joint Instability/etiology
Knee Joint/physiopathology
Knee Joint/radiography
Male
Middle Aged
Range of Motion, Articular
Retrospective Studies
Severity of Illness Index
Treatment Outcome
[Pt] Publication type:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Entry month:1407
[Js] Journal subset:IM
[Da] Date of entry for processing:140116
[St] Status:MEDLINE
[do] DOI:10.1186/1749-799X-8-41

  7 / 1290 MEDLINE  
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[PMID]: 24992066
[Au] Autor:Borbas P; Koch PP; Fucentese SF
[Ti] Title:Lateral patellofemoral ligament reconstruction using a free gracilis autograft.
[So] Source:Orthopedics;37(7):e665-8, 2014 Jul 1.
[Is] ISSN:1938-2367
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:Medial patellofemoral instability is a rare, disabling condition that is often associated with the wrong indication for lateral retinacular release or overcorrection with medializing tibial tubercle osteotomy. It is an even less common complication after total knee arthroplasty (TKA). The lateral patellofemoral ligament is an important lateral stabilizer of the patella against medial subluxation or dislocation. Until now, no report in the literature has described lateral patellofemoral ligament reconstruction with a free gracilis tendon autograft. Furthermore, there has not been a single case report of lateral patellofemoral ligament reconstruction after TKA. The authors describe a novel technique for reconstruction of the lateral patellofemoral ligament in a symptomatic medial subluxated patella resulting from TKA and extended lateral release in a 62-year-old patient. The result 1 year postoperatively was deemed successful. Clinically, the patella was stable, with correct tracking, and radiologically the patella was correctly positioned. With a technique similar to that used for the medial patellofemoral ligament, the lateral patellofemoral ligament can be reconstructed with a gracilis tendon autograft to permit stabilization independent of resting scar tissue of the lateral retinaculum. This operation can be performed in a minimally invasive way, without opening the joint, therefore decreasing the risk of joint infection. The authors showed a successful clinical and radiologic outcome 1 year after lateral patellofemoral ligament reconstruction in a patient with medial patellar instability after TKA and lateral release.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1407
[Js] Journal subset:IM
[St] Status:In-Data-Review
[do] DOI:10.3928/01477447-20140626-66

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[PMID]: 24960814
[Au] Autor:Lowe M; Meta M; Tetsworth K
[Ad] Address:Royal Brisbane and Women's Hospital, Queensland, Australia.
[Ti] Title:Irreducible lateral dislocation of patella with rotation.
[So] Source:J Surg Case Rep;2012(3):10, 2012.
[Is] ISSN:2042-8812
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:Acute lateral patellar dislocation is relatively common in younger age group and most likely caused by indirect trauma. About 10% of acute patella dislocations are the result of a direct blow to the medial side. We report a case of irreducible lateral patellar dislocation which is of exceptional interest in that lateral patellar dislocation (extra-articular) occurred in comparatively older age group with arthritic knee, there was no direct trauma involved and it was associated with some rotation along long axis, impaction of patella on lateral femoral condyle and was locked underneath osteophytic ridge of lateral femoral condyle, which needed open reduction. This is a very rare injury, first of its kind being reported in Australia.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1406
[Cu] Class update date: 140701
[Lr] Last revision date:140701
[Da] Date of entry for processing:140625
[St] Status:PubMed-not-MEDLINE
[do] DOI:10.1093/jscr/2012.3.10

  9 / 1290 MEDLINE  
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[PMID]: 23989854
[Au] Autor:Leonardi F; Rivera F; Zorzan A; Ali SM
[Ad] Address:Orthopaedic Surgery Departement, SS Annunziata Savigliano Hospital, Azienda Sanitaria Locale CN1, Via Ospedali 14, Savigliano, Cuneo, Italy.
[Ti] Title:Bilateral double osteotomy in severe torsional malalignment syndrome: 16 years follow-up.
[So] Source:J Orthop Traumatol;15(2):131-6, 2014 Jun.
[Is] ISSN:1590-9999
[Cp] Country of publication:Italy
[La] Language:eng
[Ab] Abstract:BACKGROUND: Torsional malalignment syndrome (TMS) is a well defined condition consisting of a combination of femoral antetorsion and tibial lateral torsion. The axis of knee motion is medially rotated. This may lead to patellofemoral malalignment with an increased Q angle and chondromalacia, patellar subluxation and dislocation. Conservative management is recommended in all but the most rare and severest cases. In these cases deformity correction requires osteotomies at two levels per limb. MATERIALS AND METHODS: From 1987 to 2002 in our institution three patients underwent double femoral and tibial osteotomy for TMS bilateral correction (12 osteotomies). All patients were reviewed at mean follow-up of 16 years. RESULTS: At final follow-up no patients reported persistence of knee or hip pain. At clinical examination both lower limbs showed a normal axis and a normal patella anterior position. Pre-operative femoral version measurement showed an average hip internal rotation of 81.5° (range 80°-85°) and average hip external rotation of 27.2° (10°-40°). Thigh-foot angle measurement showed an average value of 38.6° (32°-45°). At final follow-up femoral version measurement showed an average hip internal rotation of 49° (range 45°-55°) and average hip internal rotation of 44.3° (20°-48°) (Figs. 1, 2, 3, 4, 5, 6). Thigh-foot angles measurement showed an average value of 21.6° (18°-24°) outward. CONCLUSION: We recommend a clinical, radiographical and CT scan evaluation of all torsional deformity. In cases of significant deformity, internally rotating the tibia alone is not sufficient. Ipsilateral outward femoral and inward tibial osteotomies are our current recommendation for TMS, both performed at the same surgical setting.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1405
[Js] Journal subset:IM
[St] Status:In-Process
[do] DOI:10.1007/s10195-013-0260-0

  10 / 1290 MEDLINE  
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[PMID]: 23389560
[Au] Autor:Montserrat F; Alentorn-Geli E; León V; Ginés-Cespedosa A; Rigol P
[Ad] Address:Department of Orthopaedic Surgery, Hospital de l'Esperança, Parc de Salut Mar, Universitat Autonoma de Barcelona, Av. Sant Josep de la Muntanya, 12 6th floor, 08024, Barcelona, Spain, drfmontserrat@pulso.com.
[Ti] Title:Treatment of isolated patellofemoral osteoarthritis with lateral facetectomy plus Insall's realignment procedure: long-term follow-up.
[So] Source:Knee Surg Sports Traumatol Arthrosc;21(11):2572-7, 2013 Nov.
[Is] ISSN:1433-7347
[Cp] Country of publication:Germany
[La] Language:eng
[Ab] Abstract:PURPOSE: To assess the long-term results of lateral facetectomy plus Insall's realignment procedure to treat isolated patellofemoral osteoarthritis. METHODS: All consecutive patients undergoing this procedure with a follow-up between 10 and 14 years were included in this study. Subjects were excluded if they had previous patellar dislocation, patellar fracture, tibiofemoral osteoarthritis (except mild cases) or follow-up <10 or >14 years. Failure cases (need for total knee arthroplasty) of this surgical procedure before 10 years of follow-up were considered in the overall failure rate. Clinical, functional and radiographic outcomes were obtained at baseline and compared to postoperative values. RESULTS: Forty-three patients (mean (SD) age 59.7 (8.1) years) had a follow-up between 10 and 14 years and were finally included in this study. The failure rate in the whole series and included patients was 26.4 and 16.3 %, respectively, for a mean (SD) follow-up of 9.2 (3.2) years and 11.7 (1.4) years, respectively. Patellofemoral pain (p < 0.0001), need for NSAIDs (p < 0.0001), longitudinal (p < 0.0001) and transversal (p < 0.0001) patellar glide tests, Zholen's sign (p = 0.0007) and knee effusion (p = 0.02) significantly improved in the follow-up. Postoperative Knee Society Score (KSS) anatomical (p < 0.0001), functional (p < 0.0001) and total (p < 0.0001) scores and Kujala's score (p = 0.001) were significantly higher compared to preoperative values. The patellar tilt (p = 0.001) and shift (p = 0.04) significantly improved postoperatively, whereas the patellofemoral osteoarthritis was not modified (n.s.) with respect to preoperative assessment. CONCLUSIONS: The lateral facetectomy plus Insall's realignment procedure was a successful treatment for isolated patellofemoral osteoarthritis from a clinical, functional and radiographic point of view in the long-term follow-up.
[Mh] MeSH terms primary: Osteoarthritis, Knee/surgery
Patella/surgery
Patellofemoral Joint
[Mh] MeSH terms secundary: Aged
Female
Follow-Up Studies
Humans
Male
Middle Aged
Osteoarthritis, Knee/diagnosis
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1406
[Js] Journal subset:IM
[Da] Date of entry for processing:131021
[St] Status:MEDLINE
[do] DOI:10.1007/s00167-013-2431-1


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