Stener lesion: Difference between revisions
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{{Infobox medical condition | |||
| name = Stener lesion | |||
| image = [[File:Stener_lesion_in_ultrasound.jpg|left|thumb|Ultrasound image of a Stener lesion]] | |||
| caption = Ultrasound image showing a Stener lesion | |||
| synonyms = | |||
| pronunciation = | |||
| specialty = [[Orthopedic surgery]] | |||
| symptoms = Pain, swelling, instability of the [[thumb]] | |||
| complications = Chronic instability, [[arthritis]] | |||
| onset = | |||
| duration = | |||
| types = | |||
| causes = [[Trauma]] to the [[thumb]], typically from a [[skiing]] accident | |||
| risks = | |||
| diagnosis = [[Physical examination]], [[ultrasound]], [[MRI]] | |||
| differential = [[Ulnar collateral ligament injury]], [[gamekeeper's thumb]] | |||
| prevention = | |||
| treatment = [[Surgery]] | |||
| medication = | |||
| prognosis = Good with appropriate treatment | |||
| frequency = Rare | |||
| deaths = | |||
}} | |||
{{Short description|A type of injury to the thumb's ulnar collateral ligament}} | {{Short description|A type of injury to the thumb's ulnar collateral ligament}} | ||
== Introduction == | |||
== | |||
A '''Stener lesion''' is a specific type of injury that occurs in the [[thumb]], involving the [[ulnar collateral ligament]] (UCL) of the [[metacarpophalangeal joint]]. This injury is characterized by the displacement of the torn ligament, which becomes trapped above the [[adductor aponeurosis]], preventing proper healing and leading to chronic instability if not treated appropriately. | A '''Stener lesion''' is a specific type of injury that occurs in the [[thumb]], involving the [[ulnar collateral ligament]] (UCL) of the [[metacarpophalangeal joint]]. This injury is characterized by the displacement of the torn ligament, which becomes trapped above the [[adductor aponeurosis]], preventing proper healing and leading to chronic instability if not treated appropriately. | ||
==Anatomy== | ==Anatomy== | ||
The [[ulnar collateral ligament]] is a critical stabilizer of the [[thumb]]'s [[metacarpophalangeal joint]]. It is located on the ulnar side of the joint and is responsible for resisting valgus stress. The [[adductor aponeurosis]] is a fibrous structure that covers the UCL and the [[adductor pollicis muscle]]. | The [[ulnar collateral ligament]] is a critical stabilizer of the [[thumb]]'s [[metacarpophalangeal joint]]. It is located on the ulnar side of the joint and is responsible for resisting valgus stress. The [[adductor aponeurosis]] is a fibrous structure that covers the UCL and the [[adductor pollicis muscle]]. | ||
==Pathophysiology== | ==Pathophysiology== | ||
A Stener lesion occurs when the UCL is completely torn and the distal end of the ligament is displaced superficially to the [[adductor aponeurosis]]. This displacement prevents the ligament from healing in its anatomical position, leading to persistent instability of the [[thumb]] joint. | A Stener lesion occurs when the UCL is completely torn and the distal end of the ligament is displaced superficially to the [[adductor aponeurosis]]. This displacement prevents the ligament from healing in its anatomical position, leading to persistent instability of the [[thumb]] joint. | ||
==Clinical Presentation== | ==Clinical Presentation== | ||
Patients with a Stener lesion typically present with pain, swelling, and instability of the [[thumb]] following an acute injury, often due to a fall or a direct blow to the thumb. The inability to pinch or grasp objects firmly is a common complaint. | Patients with a Stener lesion typically present with pain, swelling, and instability of the [[thumb]] following an acute injury, often due to a fall or a direct blow to the thumb. The inability to pinch or grasp objects firmly is a common complaint. | ||
==Diagnosis== | ==Diagnosis== | ||
The diagnosis of a Stener lesion is primarily clinical, supported by imaging studies. [[Ultrasound]] and [[magnetic resonance imaging]] (MRI) are useful in confirming the displacement of the UCL. | The diagnosis of a Stener lesion is primarily clinical, supported by imaging studies. [[Ultrasound]] and [[magnetic resonance imaging]] (MRI) are useful in confirming the displacement of the UCL. | ||
==Treatment== | ==Treatment== | ||
Surgical intervention is typically required to correct a Stener lesion. The procedure involves relocating the displaced ligament and securing it in its anatomical position, often using suture anchors. Postoperative rehabilitation is crucial for restoring function and strength. | Surgical intervention is typically required to correct a Stener lesion. The procedure involves relocating the displaced ligament and securing it in its anatomical position, often using suture anchors. Postoperative rehabilitation is crucial for restoring function and strength. | ||
==Prognosis== | ==Prognosis== | ||
With appropriate surgical treatment and rehabilitation, most patients regain full function of the [[thumb]]. However, delayed treatment can lead to chronic instability and arthritis. | With appropriate surgical treatment and rehabilitation, most patients regain full function of the [[thumb]]. However, delayed treatment can lead to chronic instability and arthritis. | ||
==See also== | |||
== | |||
* [[Ulnar collateral ligament injury of the thumb]] | * [[Ulnar collateral ligament injury of the thumb]] | ||
* [[Metacarpophalangeal joint]] | * [[Metacarpophalangeal joint]] | ||
* [[Adductor pollicis muscle]] | * [[Adductor pollicis muscle]] | ||
[[Category:Orthopedic injuries]] | [[Category:Orthopedic injuries]] | ||
[[Category:Hand injuries]] | [[Category:Hand injuries]] | ||
Latest revision as of 18:00, 8 April 2025
Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
Founder, WikiMD Wellnesspedia &
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| Stener lesion | |
|---|---|
 | |
| Synonyms | |
| Pronounce | N/A |
| Specialty | Orthopedic surgery |
| Symptoms | Pain, swelling, instability of the thumb |
| Complications | Chronic instability, arthritis |
| Onset | |
| Duration | |
| Types | |
| Causes | Trauma to the thumb, typically from a skiing accident |
| Risks | |
| Diagnosis | Physical examination, ultrasound, MRI |
| Differential diagnosis | Ulnar collateral ligament injury, gamekeeper's thumb |
| Prevention | |
| Treatment | Surgery |
| Medication | |
| Prognosis | Good with appropriate treatment |
| Frequency | Rare |
| Deaths | |
A type of injury to the thumb's ulnar collateral ligament
Introduction[edit]
A Stener lesion is a specific type of injury that occurs in the thumb, involving the ulnar collateral ligament (UCL) of the metacarpophalangeal joint. This injury is characterized by the displacement of the torn ligament, which becomes trapped above the adductor aponeurosis, preventing proper healing and leading to chronic instability if not treated appropriately.
Anatomy[edit]
The ulnar collateral ligament is a critical stabilizer of the thumb's metacarpophalangeal joint. It is located on the ulnar side of the joint and is responsible for resisting valgus stress. The adductor aponeurosis is a fibrous structure that covers the UCL and the adductor pollicis muscle.
Pathophysiology[edit]
A Stener lesion occurs when the UCL is completely torn and the distal end of the ligament is displaced superficially to the adductor aponeurosis. This displacement prevents the ligament from healing in its anatomical position, leading to persistent instability of the thumb joint.
Clinical Presentation[edit]
Patients with a Stener lesion typically present with pain, swelling, and instability of the thumb following an acute injury, often due to a fall or a direct blow to the thumb. The inability to pinch or grasp objects firmly is a common complaint.
Diagnosis[edit]
The diagnosis of a Stener lesion is primarily clinical, supported by imaging studies. Ultrasound and magnetic resonance imaging (MRI) are useful in confirming the displacement of the UCL.
Treatment[edit]
Surgical intervention is typically required to correct a Stener lesion. The procedure involves relocating the displaced ligament and securing it in its anatomical position, often using suture anchors. Postoperative rehabilitation is crucial for restoring function and strength.
Prognosis[edit]
With appropriate surgical treatment and rehabilitation, most patients regain full function of the thumb. However, delayed treatment can lead to chronic instability and arthritis.
