Benediction Hand (aka Benediction Sign or Preacher's Hand): Difference between revisions

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== Description  ==
[[File:Benediction hand.jpg|thumb|284x284px]]The Benediction Sign is commonly associated with a [[Median Nerve|median nerve]] pathology. It is seen when the patient attempts to make a fist but is unable to flex the index and middle fingers at the metacarpophalangeal (MCP) and [[Interphalangeal Joints of the Hand|interphalangeal]] (IP) joints, causing these fingers to remain extended while the other fingers flex normally. This distinct clinical presentation is a result of damage to the median nerve, which impairs the function of the lateral lumbricals that flex these joints.


== Clinically Relevant Anatomy<br> ==
== Historical and Cultural Context ==
Historically, the Benediction Sign has been linked to cultural representations of blessings and greetings, which typically involved an open hand with extended fingers. It was noted in some historical and cultural analyses, such as the research by Futterman <ref name="Futterman">Futterman B. Analysis of the Papal Benediction Sign: the ulnar neuropathy of St. Peter. Clinical Anatomy. 2015 Sep;28(6):696-701.</ref>, that figures like Peter, the first Pope, might have had an ulnar neuropathy, which influenced the traditional hand blessing posture. However, this specific condition affects the ability to abduct and flex the fourth and fifth digits and is distinct from the Benediction Sign associated with median nerve pathology.


add text here relating to '''''clinically relevant''''' anatomy of the condition<br>
==Clinically Relevant Anatomy==
 
[[File:Muscles_of_the_hand_anterior_aspect_Primal.png|thumb|200x200px]]
== Mechanism of Injury / Pathological Process<br>  ==
The [[Median Nerve|median nerve]] originates from the [[Brachial Plexus|brachial plexus]] and primarily innervates the first and second lumbricals of the hand, among other structures. In the case of Benediction Sign, the inability to flex the second and third digits arises from damage to this nerve. However, [https://physio-pedia.com/Ulnar_Nerve?utm_source=physiopedia&utm_medium=search&utm_campaign=ongoing_internal ulnar nerve] pathology affects the fourth and fifth digits, leading to what is often termed as "[[Claw Hand]]," where these digits may exhibit hyperextension at the MCP joints and flexion at the IP joints.
 
add text here relating to the mechanism of injury and/or pathology of the condition<br>


== Clinical Presentation  ==
== Clinical Presentation  ==
Patients with Benediction Sign may experience numbness and muscle weakness primarily in the second and third digits. The presentation involves these fingers remaining extended during an attempt to make a fist. This should not be confused with ulnar nerve symptoms, which affect the outer digits of the hand.


add text here relating to the clinical presentation of the condition<br>  
<ref>Floranda EE, Jacobs BC. [https://www.ncbi.nlm.nih.gov/pubmed/24209726 Evaluation and treatment of upper extremity nerve entrapment syndromes]. Primary care. 2013 Dec;40(4):925.</ref>[[Image:Benediction hand ulnar claw.JPG|center|300px]]
 
== Diagnostic Procedures  ==
 
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== Outcome Measures  ==
 
add links to outcome measures here (see [[Outcome Measures|Outcome Measures Database]])
 
== Management / Interventions<br>  ==
 
add text here relating to management approaches to the condition<br>
 
== Differential Diagnosis<br>  ==
 
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== Key Evidence ==
==  Differential Diagnosis ==
The differential diagnosis should consider other conditions that mimic the posture of Benediction Sign but are due to different underlying causes, such as [[Rheumatoid Arthritis|rheumatoid arthritis]] or other forms of peripheral neuropathy.
== Management and Treatment ==
The treatment of Benediction Hand involves the management and treatment of the underlying median nerve pathology.  Treatment options may include: <ref>Hand of Benediction. What Is It, Causes, and More. Available from: <nowiki>https://www.osmosis.org/answers/hand-of-benediction</nowiki> ( Accessed, 19/07/2021).</ref>


add text here relating to key evidence with regards to any of the above headings<br>
* Non-steroidal inflammatory drugs (NSAIDs) to control pain and prevent symptoms to get worse.


== Resources <br> ==
* Use of hand or wrist brace to minimise further nerve compression and excessive bending.
* [[Hand Exercises|Hand stretching and strengthening exercises]] with a Physiotherapist or Occupational Therapist if needed.
* Nerve decompression surgery to reduce pressure and relieve pain if the median nerve is affected because of the [[Carpal Tunnel Syndrome]].<br />
{{#ev:youtube|0AAligXLJ1A |300}}<ref>FSUMedMedia. Claw Hand, Ape Hand, and the Sign of Benediction: Animated Review. Available from: https://www.youtube.com/watch?v=0AAligXLJ1A [Accessed, 19/07/2021]</ref>


add appropriate resources here
== Summary ==
 
It is important to distinguish the Benediction Sign, primarily a median nerve issue, from conditions affecting the ulnar nerve. Understanding the specific nerve involvements helps in accurate diagnosis and effective management of the condition.
== Case Studies  ==
 
add links to case studies here (case studies should be added on new pages using the [[Template:Case Study|case study template]])<br>


== References  ==
== References  ==
References will automatically be added here, see [[Adding References|adding references tutorial]].


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[[Category:Neuropathy]]
[[Category:Hand]]

Latest revision as of 11:34, 6 May 2024

Description[edit | edit source]

Benediction hand.jpg

The Benediction Sign is commonly associated with a median nerve pathology. It is seen when the patient attempts to make a fist but is unable to flex the index and middle fingers at the metacarpophalangeal (MCP) and interphalangeal (IP) joints, causing these fingers to remain extended while the other fingers flex normally. This distinct clinical presentation is a result of damage to the median nerve, which impairs the function of the lateral lumbricals that flex these joints.

Historical and Cultural Context[edit | edit source]

Historically, the Benediction Sign has been linked to cultural representations of blessings and greetings, which typically involved an open hand with extended fingers. It was noted in some historical and cultural analyses, such as the research by Futterman [1], that figures like Peter, the first Pope, might have had an ulnar neuropathy, which influenced the traditional hand blessing posture. However, this specific condition affects the ability to abduct and flex the fourth and fifth digits and is distinct from the Benediction Sign associated with median nerve pathology.

Clinically Relevant Anatomy[edit | edit source]

Muscles of the hand anterior aspect Primal.png

The median nerve originates from the brachial plexus and primarily innervates the first and second lumbricals of the hand, among other structures. In the case of Benediction Sign, the inability to flex the second and third digits arises from damage to this nerve. However, ulnar nerve pathology affects the fourth and fifth digits, leading to what is often termed as "Claw Hand," where these digits may exhibit hyperextension at the MCP joints and flexion at the IP joints.

Clinical Presentation[edit | edit source]

Patients with Benediction Sign may experience numbness and muscle weakness primarily in the second and third digits. The presentation involves these fingers remaining extended during an attempt to make a fist. This should not be confused with ulnar nerve symptoms, which affect the outer digits of the hand.

[2]

Benediction hand ulnar claw.JPG

Differential Diagnosis[edit | edit source]

The differential diagnosis should consider other conditions that mimic the posture of Benediction Sign but are due to different underlying causes, such as rheumatoid arthritis or other forms of peripheral neuropathy.

Management and Treatment[edit | edit source]

The treatment of Benediction Hand involves the management and treatment of the underlying median nerve pathology. Treatment options may include: [3]

  • Non-steroidal inflammatory drugs (NSAIDs) to control pain and prevent symptoms to get worse.
  • Use of hand or wrist brace to minimise further nerve compression and excessive bending.
  • Hand stretching and strengthening exercises with a Physiotherapist or Occupational Therapist if needed.
  • Nerve decompression surgery to reduce pressure and relieve pain if the median nerve is affected because of the Carpal Tunnel Syndrome.

[4]

Summary[edit | edit source]

It is important to distinguish the Benediction Sign, primarily a median nerve issue, from conditions affecting the ulnar nerve. Understanding the specific nerve involvements helps in accurate diagnosis and effective management of the condition.

References[edit | edit source]

  1. Futterman B. Analysis of the Papal Benediction Sign: the ulnar neuropathy of St. Peter. Clinical Anatomy. 2015 Sep;28(6):696-701.
  2. Floranda EE, Jacobs BC. Evaluation and treatment of upper extremity nerve entrapment syndromes. Primary care. 2013 Dec;40(4):925.
  3. Hand of Benediction. What Is It, Causes, and More. Available from: https://www.osmosis.org/answers/hand-of-benediction ( Accessed, 19/07/2021).
  4. FSUMedMedia. Claw Hand, Ape Hand, and the Sign of Benediction: Animated Review. Available from: https://www.youtube.com/watch?v=0AAligXLJ1A [Accessed, 19/07/2021]