Effects of retinacular release and tibial tubercle elevation in patellofemoral degenerative joint disease

Lewallen, David G.; Riegger, Chery L.; Myers, Elizabeth; Hayes, Wilson C.

doi:10.1002/jor.1100080611

Cited by 61 publications

(33 citation statements)

References 24 publications

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“…Anterior displacement of the tibial tuberosity reduces the contact forces, but not necessarily the stress on the patellofemoral joint (Lewallen et al 1990). Anteromedialization, which translates the contact area medially, results in relief of the lateral facet which could theoretically reduce pain.…”

Section: Resultsmentioning

confidence: 99%

Isolated patellofemoral osteoarthritis

Jonbergen¹,

Poolman²,

Kampen³

2010

Acta Orthopaedica

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Background and purpose The optimal treatment for isolated patellofemoral osteoarthritis is unclear at present. We systematically reviewed the highest level of available evidence on the nonoperative and operative treatment of isolated patellofemoral osteoarthritis to develop an evidenced-based discussion of treatment options.Methods A systematic computerized database search (Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, MEDLINE (PubMed), and EMBASE) was performed in March 2009. The quality of the studies was assessed independently by two authors using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach.Results We extracted data from 44 articles. The best available evidence for treatment of isolated patellofemoral osteoarthritis is sparse and of generally low methodological quality. Nonoperative treatment using physiotherapy (GRADE: high quality, weak recommendation for use), taping (GRADE: moderate quality, weak recommendation for use), or injection therapy (GRADE: very low quality, weak recommendation for use) may result in short-term relief. Joint-preserving surgical treatment may result in insufficient, unpredictable, or only short-term improvement (GRADE: low quality, weak recommendation against use). Total knee replacement with patellar resurfacing results in predictable and good, durable results (GRADE: low quality, weak recommendation for use). Outcome after patellofemoral arthroplasty in selected patients is good to excellent (GRADE: low quality, weak recommendation for use).Interpretation Methodologically good quality comparative studies, preferably using a patient-relevant outcome instrument, are needed to establish the optimal treatment strategy for patients with isolated patellofemoral osteoarthritis.

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Section: Resultsmentioning

confidence: 99%

Isolated patellofemoral osteoarthritis

Jonbergen¹,

Poolman²,

Kampen³

2010

Acta Orthopaedica

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“…The patellofemoral joint load during knee flexion has been reported by several different authors/groups (Reilly and Martens, 1972;Smidt, 1973;Dahlkvist et al, 1982;Singerman et al, 1999;Matthews et al, 1977;Churchill et al, 2001;Townsend et al, 1977;Singerman et al, 1995a, b;Ahmed et al, 1987;Nisell and Ekholm, 1985;Buff et al, 1988;Petersilge et al, 1994;Lewallen et al, 1990). There is a wide variation between these results because the loading of the knee varies.…”

Section: Article In Pressmentioning

confidence: 88%

“…Reilly and Martens (1972) came to this conclusion after estimating the maximum patellofemoral force to be about 0.5BW during walking. Because it is low, the joint moment during walking can vary significantly based on measurement The equivalent body weight in Singerman et al (1994) is estimated from their own comparison of their work to the work of Lewallen et al (1990). methods and subject-to-subject variation (Manal et al, 2002).…”

Section: Walking Gaitmentioning

confidence: 99%

Patellofemoral joint forces

Mason¹,

Leszko

Johnson³

et al. 2008

Journal of Biomechanics

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“…Beyond 120° of flexion, the contact area is reduced and only the small odd facet remains in contact with the femur. The contact area is approximately 2.1 cm 2 at 30° of flexion and increases to approximately 5.5 cm 2 at 90° of flexion [4, 5]. In addition to the superior and inferior motion of the patella, it also tracks lateral-medial-lateral and tilts laterally during tibiofemoral extension to flexion.…”

Section: Introductionmentioning

confidence: 99%

Patella morphological alteration after patella instability in growing rabbits

Niu

et al. 2017

J Orthop Surg Res

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BackgroundThe shape of the patella has been considered to be a predisposing factor resulting in patellar instability, but the effects of abnormal patella position during its development are unclear. The present study evaluated patellar morphological changes after patella instability and evaluated the influence of patellar instability on the patella shape.MethodsTwenty rabbits that were 2 months old were included in the study. The left knee of each rabbit, defined as the experimental group (N = 20 knees/group), underwent a medial soft tissue restraint release. The right knee of each rabbit, defined as the control group (N = 20 knees/group), did not undergo any surgical procedures. A CT scan was performed on each knee before surgery and 6 months post-surgery to measure the transverse diameter, thickness, Wiberg index, and Wiberg angle for analysis of the patellar morphological changes. Cross-specimen examination was conducted to evaluate the differences between the experimental group and the control group.ResultsThe four indices remained the same between the two groups before surgery. However, 6 months after surgery, the mean transverse diameter of the patellae in the experimental group was significantly longer than that in the control group (P < 0.001), while the mean thickness in the experimental group was not significantly greater than that in the control group (P = 0.314), resulting in a flattened shape. The Wiberg indices were not significantly different between the two groups. However, the mean Wiberg angle was higher in the experimental group than in the control group (P < 0.001), which resulted in a flattened articular surface of the patella.ConclusionThe sectional shape and articular surface of the patella became more flattened after patella instability in this study, which indicates that patella dysplasia could be caused by patella instability. Clinically, early intervention for adolescent patients with patella instability is important.

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Effects of retinacular release and tibial tubercle elevation in patellofemoral degenerative joint disease

Cited by 61 publications

References 24 publications

Isolated patellofemoral osteoarthritis

Isolated patellofemoral osteoarthritis

Patellofemoral joint forces

Patella morphological alteration after patella instability in growing rabbits

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