Case Study: Application of Class 4 Laser Therapy in Post-Operative Wound Healing Following Tail Amputation (Caudectomy) in a Dog

Introduction

Tail injuries in pets are primarily caused by traumatic forces such as pinches and impacts, strenuous exercise strain, skin diseases, frostbite, underlying orthopedic/neurological disorders, and self-mutilation due to psychological stress, extreme pruritus (itching), or self-defense instincts. Following a caudectomy (tail amputation surgery), post-operative wounds commonly exhibit symptoms such as redness, swelling, exudation, abnormal scabbing, and elevated skin temperature. In severe cases, this can lead to wound ulceration, suppuration, and abnormal granulation tissue hyperplasia. Without timely care and intervention, delayed wound healing, recurrent inflammation, and excessive scarring may occur, or even progress to tissue necrosis and systemic infection, severely impacting post-op recovery and appearance.

Class 4 laser therapy is currently an advanced, non-invasive physical modality in veterinary clinical medicine applied to surgical wound repair and post-operative inflammation resolution. It offers significant advantages in being safe and non-invasive, providing anti-inflammatory and bactericidal effects, reducing edema and pain, accelerating granulation tissue growth, and promoting epidermal repair. It effectively overcomes the limitations of traditional care methods, enhancing surgical wound healing efficiency and quality. This report documents the complete recovery process of a Shiba Inu using VETMEDIX (FotonMedix) laser equipment, providing a scientific reference for similar complications.

01 Patient Profile

• Breed: Shiba Inu
• Name: Mai Dou
• Age: 1 Year 3 Months
• Gender: Male
• Medical History: None
• Chief Complaint: Self-mutilation and biting of the tail under long-term high-stress environments.

02 Diagnosis

• Diagnosis: Pyogenic infection with exposed tail bone layers; Caudectomy (tail amputation) was performed.

03 VETMEDIX Treatment Protocol

• Course of Treatment: 8 sessions of vet laser therapy (once daily).
• Laser Settings (Custom Mode): Power 15W, Duty Cycle 10%.
• Technique: Standard treatment head; linear scanning motion (back-and-forth “I” pattern) over the affected area.
• Adjuvant Therapy: Ceftriaxone, Meloxicam, Antibacterial Ointment.

04 Treatment Results

(First laser therapy session-Fourth laser therapy session-Tenth laser therapy session)

05 Case Summary

Short-term Recovery: The veterinary clinical team at Hangzhou Songzi Pet Hospital implemented a targeted Class 4 laser therapy protocol for the Shiba Inu patient suffering from poor post-operative wound healing and localized inflammation. During the treatment cycle, daily laser-assisted therapy sessions were conducted. Redness, swelling, and elevated skin temperature at the surgical site subsided progressively, while exudation and minor bleeding improved significantly. The scope of inflammatory infiltration narrowed, wound pain was markedly reduced, the amputation surface dried and contracted, and new granulation tissue grew in an organized manner, leading to a steady recovery of the pet’s appetite and spirit.

Long-term Follow-up: Following discharge, the patient received appropriate wound protection and restricted strenuous exercise to avoid stretching the incision, along with regular follow-up check-ups to track tail stump healing and tissue recovery. Long-term follow-up results indicated that the amputation wound had completely healed. The scabs shed naturally, leaving the skin flat and smooth. No common post-operative complications—such as ulceration, suppuration, abnormal granulation tissue hyperplasia, scar adhesion, or recurrent infection—were observed. The dog’s tail mobility has returned to normal, allowing it to run and play freely in a healthy state.

Conclusion: This case demonstrates the significant clinical value of VETMEDIX small animal high-power laser rehabilitation in canine wound healing. Utilizing Photobiomodulation (PBM) technology, deep tissue laser therapy acts non-invasively on the tail amputation site to effectively optimize local blood circulation, dissipate post-operative inflammatory edema, alleviate wound pain, and inhibit the proliferation of pathogens. By accelerating granulation tissue growth and epidermal repair, it drastically shortens the wound healing cycle, showcasing prominent clinical advantages in laser therapy in veterinary medicine.

06 Medical Team & Facility

Attending Veterinarian: Dr. Ji Yi With 6 years of experience since 2015, Dr. Ji specializes in feline medicine, cardiology, and feline behavior. His credentials include advanced training at China Agricultural University (Perioperative Anesthesia), BJSAVA (Feline Ophthalmology), Zoetis (Advanced Imaging), and Boehringer Ingelheim (Feline Internal Medicine).

Facility Profile: Hangzhou Songzi Pet Hospital Dedicated to pet healthcare for 15 years, the hospital features professional medical and grooming teams. It is equipped with advanced diagnostic tools including Korean Comed Digital X-ray, Abaxis and Mindray analyzers, Olympus microscopy, and cardiac ultrasound, committed to providing expert technical guidance and scientific medical services.