Scuba

8-year old Mixed Breed

55 lbs

Veterinarian: Ann Sherwood, DVM


HISTORY –

Right hind limb lameness first noticed in June of 2020 – gradually worsened over time and progressed to be associated muscle atrophy. At the time Scuba was undergoing chemotherapy for hypercalcemic T cell mediastinal lymphoma and the concern was that this was associated with neoplasia.

Scuba also experienced decreased appetite and activity when painful. He was treated with NSAIDs and Adequan® with the hope of avoiding surgery in an at-risk patient. Scuba had the extra complication of having developed worsening azotemia over time likely due to hypercalcemia associated with lymphoma and/or chemotherapy medications.

EXAM –

  • Right hind limb grade 2-3/5 lameness of nearly 12 months duration

  • Associated muscle atrophy from decreased use.

DIAGNOSTICS –

  • Orthopedic evaluation by DVM and DVM trained in rehabilitative medicine

  • Radiographs taken on several occasions including 4/2021

DIAGNOSIS –

  • Partially torn right cranial cruciate ligament with associated thickening of stifle and caudal muscle atrophy.

  • Hypercalcemic T cell mediastinal lymphoma.

  • Azotemia.

TREATMENTS -

PREVIOUS THERAPIES

  • Daily Omega 3 Fish oil supplementation

  • Rimadyl® (Carprofen) 100 mg daily (SID or split into BID dose) started August 2020

  • Adequan® 120 mg SQ twice weekly for 4 weeks then monthly administration – started April 2021

PHYSICAL MEDICINE — JUNE 3, 2021

  • Scuba was placed under heavy sedation using butorphanol and dexdomitor.

  • His right stifle was clipped and surgically prepared in a routine fashion.

  • A 22 g 1” needle was placed in a lateral to medial direction to penetrate the synovial space. 

  • A small amount (0.4 ml) of synovial fluid was extracted using a 3 ml syringe. This syringe was removed from the needle and 1.4 ml of sterile Spryng™ with OsteoCushion™ Technology was injected into the joint.

  • Spryng™ was injected smoothly through the 22 g needle. The needle was removed and the arthrocentesis site was compressed for ~ 1 minute.

  • The stifle was flexed and extended to disperse the particles in the joint. 

  • Scuba recovered uneventfully and was discharged to his person several hours later.

OUTCOME -

  • Scuba was continued on Rimadyl® post-injection. His condition remained stable initially.

  • He did not have any complications following the intra-articular injection.

  • Over the ensuing weeks he gradually started to exhibiting considerably less lameness – progressing from a grade 3 to a grade 1 lameness over 3 weeks. 

  • As previously stated, he had considerable muscle atrophy which likely contributed to his more gradual improvement.

  • As his lameness improved, his appetite and general activity level increased steadily.

  • Over time his NSAID medication was reduced and eventually discontinued.

  • Several months following the intra-articular injection of Spryng™ with OsteoCushion™ Technology, Scuba limps only very rarely when initially rising from resting.  When he runs around in the yard you would never be able to guess that he still has a partially ruptured cranial cruciate ligament.

.

24 MONTHS POST INJECTION — JUNE 2023

  • Scuba’s Spryng™ injection was 24 months ago, and he is still running strong!

  • Although Scuba is now over 10 years of age with a past unilateral CCL injury, he is still very active. In fact, he is more active now than he was prior to his cancer diagnosis.

  • His lameness is 0/5 most days but may increase to 1/5 after heavy exercise. He is able to run, jump and play with other dogs.

  • Scuba has only continued to take Dasuquin® Advanced and an Omega-3 fatty acid supplement (as of July of 2021). He has been maintained at a healthy weight and has a BCS of 5/9.

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