跳至主要内容
临床试验/NCT06678646
NCT06678646招募中不适用

Ultrasound-guided Release of the Median Nerve at the Elbow in Patients With Lacertus Syndrome

GCS Ramsay Santé pour l'Enseignement et la Recherche3 个研究点 分布在 1 个国家目标入组 107 人开始时间: 2025年6月16日最近更新:
适应症
干预措施

试验速览

阶段
不适用
状态
招募中
发起方
入组人数
107
试验地点
3
主要终点
Disability and symptoms related to damage of the upper limb

研究概览

简要总结

Lacertus syndrome is an orthopaedic condition that occurs when the median nerve is compressed where it passes under the lacertus fibrosus.

Treatment for lacertus syndrome is generally aimed at relieving compression of the median nerve and reducing associated symptoms. Treatment options vary according to the severity of the condition and the patient's individual needs.

Sectioning the Lacertus fibrosus frees the median nerve. It is performed as an outpatient procedure under local anaesthetic, and the patient can resume his or her activities immediately. Lacertus fibrosus section has been described as an open procedure, i.e. with a horizontal scar in the elbow crease.

Ultrasound guided surgery is an innovative technique that has proved its effectiveness for nerve releases such as the median nerve in the carpal tunnel or the ulnar nerve in the elbow. This technique was tested on a series of 18 cadavers and then on a series of 15 patients with a lacertus syndrome. The patients underwent the operation without any immediate surgical or anaesthetic complications. Muscle strength returned immediately and persisted. Pain was reduced and all patients who were working were able to carry out their professional activities from the very first week. The millimetric skin incision healed without hypertrophic scar tissue. A small haematoma appeared at week 1 and resolved spontaneously. No other late complications were observed.

In this context, this study would consolidate the preliminary results observed and confirm the hypothesis that minimally invasive percutaneous surgery under ultrasound is appropriate for sectioning Lacertus fibrosus safely, rapidly and effectively in Lacertus syndrome.

详细描述

The lacertus fibrosus is a thick, tough, fibrous band of connective tissue. The lacertus fibrosus is a continuation of the tendon of the biceps brachii muscle. It plays a role in protecting the median nerve, which passes under this ligament as it travels towards the hand.

Lacertus syndrome is an orthopaedic condition that occurs when the median nerve is compressed where it passes under the lacertus fibrosus. This syndrome can affect both men and women, generally after the age of 35. It can occur on one side or bilaterally. Common symptoms vary from person to person and include pain in the forearm, elbow and sometimes the shoulder, a feeling of tiredness or heaviness in the forearm, muscle weakness in the thumb and grip, clumsiness, loss of stamina and variable tingling in the first three fingers of the hand (thumb, index and middle fingers), similar to carpal tunnel syndrome.

Treatment for lacertus syndrome is generally aimed at relieving compression of the median nerve and reducing associated symptoms. Treatment options vary according to the severity of the condition and the patient's individual needs. They may include physiotherapy, non-steroidal anti-inflammatory drugs (NSAIDs), orthoses, corticosteroid injections and surgery.

Sectioning the Lacertus fibrosus frees the median nerve. It is performed as an outpatient procedure under local anaesthetic, and the patient can resume his or her activities immediately. Lacertus fibrosus section has been described as an open procedure, i.e. with a horizontal scar in the elbow crease.

Ultrasound guided surgery is an innovative technique that has proved its effectiveness for nerve releases such as the median nerve in the carpal tunnel or the ulnar nerve in the elbow. This new ultrasound-guided surgical technique reduces the side-effects associated with surgery (infection, algodystrophy, scarring), limits the need for time off work and reduces overall costs.

研究设计

研究类型
Interventional
分配方式
Na
干预模型
Single Group
主要目的
Treatment
盲法
None

入排标准

年龄范围
18 Years 至 70 Years(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Patient, male or female, aged ≥ 18 years and < 70 years
  • Patient with isolated or bilateral Lacertus syndrome (no associated procedure on the day of surgery).
  • Patient with a normal EMG

排除标准

  • Patient with previous elbow surgery
  • Patient with a history of elbow fracture
  • Patient taking part in another study

研究组 & 干预措施

Ultrasound guided surgery

Experimental

Percutaneous Ultrasound-Guided Release of the Lacertus Fibrosus for Median Nerve Entrapment at the Elbow

干预措施: Elbow ultrasound-guided surgery (Procedure)

结局指标

主要结局

Disability and symptoms related to damage of the upper limb

时间窗: Day 30

Disability and symptoms will be assessed with Quick DASH (Disabilities of the Arm, Shoulder and Hand) questionnaire (0 - 100 points). 0 means normal limb whereas 100 means full disability.

次要结局

  • Clamping force(Day 30 and month 6)
  • Upper limb pain(Day1, Day 30 and month 6)
  • Persistent numbness(Day1, Day 30 and month 6)
  • Patient satisfaction(Day 30 and month 6)
  • Return to work(Day 30 and month 6)
  • Return to sport/artistic activities(Day 30 and month 6)

研究者

发起方
GCS Ramsay Santé pour l'Enseignement et la Recherche
申办方类型
Other
责任方
Sponsor

研究点 (3)

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