Transmission of pressures across the elbow joint

Halls, Albert A.; Travill, Anthony A.

doi:10.1002/ar.1091500305

Cited by 230 publications

(80 citation statements)

References 1 publication

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“…Therefore, the mechanical performance of the plating configuration was assessed in the most relevant physiological loading condition of the elbow joint [3]. Loads were physiologically distributed on the elbow joint [12,13].…”

Section: Discussionmentioning

confidence: 99%

“…The choice of load application [12,13] as well as testing procedures [14] were based on previous studies and are briefly summarized below.…”

Section: Methodsmentioning

confidence: 99%

“…Compressive loading was induced by using a compensator with an eccentric centre of rotation. By eccentric loading a force distribution of 60% on the humero-radial joint and 40% on the humero-ulnar joint could be realized [13,15]. Stiffnesses of the specimens were assessed by using at least three specimens from each group that were loaded to 300 N three times for setting and once for stiffness determination.…”

Section: Test Setup and Parametersmentioning

confidence: 99%

See 2 more Smart Citations

Biomechanical comparison of anatomical plating systems for comminuted distal humeral fractures

Varady

Rüden

Greinwald

et al. 2017

International Orthopaedics (SICOT)

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Purpose Six different mono-axial and poly-axial distal humeral plating systems with an anatomical plate design were compared. The aim of the biomechanical tests was to examine differences regarding system stiffness, median fatigue limit, and failure mechanisms. Methods Different configurations of two double plate fixation systems by two manufacturers for the treatment of complex distal humeral fractures (AO/OTA type C2.3) were biomechanically tested in a physiologically relevant setup. Results The 180°Stryker configuration presented itself as the system with the highest stiffness, being significantly stiffer (p < 0.001) than every system other than the poly-axial 180°aap system (p = 0.378). For the median fatigue limit the 180°S tryker and poly-axial aap systems were ranked first and second. The failure mechanism for all 90°systems was a fatigue breakage of the posterolateral plate. The 180°aap systems demonstrated breakage of the most distal screws of the lateral plate. The 180°Stryker system demonstrated screw breakage on both the medial and lateral plates. Discussion Breakage of the posterolateral plate as a failure mechanism for the 90°systems was expected. The 180°s ystems demonstrated a higher stiffness compared to the 90°c onstructs for the axial loading. In conclusion, both poly-axial anatomical plating systems provide sufficient stability in this scenario, and the 180°configurations demonstrated superior stiffness.

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Section: Discussionmentioning

confidence: 99%

“…The choice of load application [12,13] as well as testing procedures [14] were based on previous studies and are briefly summarized below.…”

Section: Methodsmentioning

confidence: 99%

Section: Test Setup and Parametersmentioning

confidence: 99%

See 1 more Smart Citation

Biomechanical comparison of anatomical plating systems for comminuted distal humeral fractures

Varady

Rüden

Greinwald

et al. 2017

International Orthopaedics (SICOT)

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“…In order to gain a clearer understanding of the consequences of radial head resections (1,18,32,59,71,84) (elbow instability, radiocapitellar joint contact loss, proximal migration of the radius) in comminuted radial head fractures, research was carried out on human cadaver elbows in order to examine the function of the radial head (31,51,63,64,66) and the role of the anterior band of the medial collateral ligament (aMCL), the interosseous membrane (MI) and the triangular fibrocartilaginous complex (TFCC) (20,37,38,66,70,74,75).…”

Section: Biomechanicsmentioning

confidence: 99%

“…Basic experimental research showed that 60% of an axial load at the elbow is transmitted through the radiocapitellar (RC) joint (3,31,64), especially in pronation between 0°and 30°flexion (65).…”

Section: Biomechanicsmentioning

confidence: 99%

Current Concepts Review

Harcke¹,

Kumar²

1991

Journal of Pediatric Orthopaedics

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The treatment of simple radial head fractures type Mason-Hotchkiss 1 and 2 is unequivocal. In the case of a displacement of less than 2 mm (MasonHotchkiss 1), functional conservative treatment is indicated. If the displacement is more than 2 mm (Mason-Hotchkiss 2) internal fixation is indicated, combined with treatment of the soft-tissue injuries. The treatment of comminuted radial head fractures Mason-Hotchkiss type 3 is more controversial, as they are usually associated with ligament injuries. Conservative treatment appears to have unsatisfactory results. Opinions differ on surgical treatment, i.e. 1) excision of the radial head ; 2) reconstruction by means of internal fixation ; 3) excision and reconstruction with a prosthesis. Basic experimental research on human cadaver elbows shows the importance of the conservation of the radial head, especially in case of associated soft tissue injuries. In most cases a stable osteosynthesis is impossible, and in case of associated ligament disruptions, resection and reconstruction by means of a rigid radial head prosthesis should be considered. Experimental research demonstrates promising results for rigid radial head prostheses in human cadaver elbows with a resected radial head and failing medial collateral ligament. Short-term clinical studies seem to confirm this, but long-term results are as yet unknown.

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Subchondral bone density in the human elbow assessed by computed tomography osteoabsorptiometry: A reflection of the loading history of the joint surfaces

Eckstein

Müller‐Gerbl

Steinlechner

et al. 1995

Journal Orthopaedic Research

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The functional adaptation of bone tissue to the mechanical stresses acting on it has been convincingly established. This association should apply as well to the subchondral bone, reflecting the long-term distribution of stress over the joint surfaces. Thirty-six specimens of the human elbow joint were investigated by computed tomography osteoabsorptiometry in order to assess the distribution of the subchondral mineralization. The distal surfaces usually were more highly mineralized than the proximal components of the joint, whereas the humeroulnar and the humeroradial parts exhibited a similar degree of mineralization. The fovea of the radial head always showed a central density maximum, and the trochlear notch usually presented a bicentric distribution pattern, with maxima beneath the ventral and dorsal regions of the articular surface. The different patterns of subchondral mineralization were shown to reflect the loading history of the overlying articular surfaces, which is determined mainly by geometrical factors. The flatter socket of the humeroradial joint leads to central load transmission, but the deeper socket of the humeroulnar joint will, by contrast, give rise to bicentric stress distribution.

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Transmission of pressures across the elbow joint

Cited by 230 publications

References 1 publication

Biomechanical comparison of anatomical plating systems for comminuted distal humeral fractures

Biomechanical comparison of anatomical plating systems for comminuted distal humeral fractures

Current Concepts Review

Subchondral bone density in the human elbow assessed by computed tomography osteoabsorptiometry: A reflection of the loading history of the joint surfaces

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