Recently, the use of canine stifle braces has emerged as a potential therapeutic approach to managing CCL insufficiency. Studies are under way investigating whether braces are truly able to stabilize the stifle and eliminate cranial tibial thrust and internal rotation.<\/p>\n
Human Knee Braces<\/strong><\/h3>\nKnee braces are used in human medicine to2<\/sup>:<\/p>\n\n- Enhance proprioception\/joint position sense<\/li>\n
- Permit the injured limb to relax<\/li>\n
- Reduce fatigue in the injured limb<\/li>\n
- Provide some mechanical protection against impact<\/li>\n
- Slow movement down to allow muscles time to react and control motion.<\/li>\n<\/ul>\n
Categories of knee braces in human medicine include the following:<\/p>\n
\n- Prophylactic braces<\/em> prevent or reduce severity of knee injuries in contact sports.<\/li>\n
- Functional braces<\/em> provide stability for unstable knees.<\/li>\n
- Rehabilitative braces<\/em> allow protected and controlled motion during the rehabilitation of injured knees.<\/li>\n
- Patellofemoral braces<\/em> improve patellar tracking and relieve anterior pain.<\/li>\n<\/ul>\n
Of these braces, only functional knee braces<\/em> are used in veterinary medicine.<\/p>\nIndications<\/strong><\/h3>\nThe most common indication for a canine stifle brace is CCL insufficiency, but these braces are also used for postoperative support for medial or lateral collateral ligament instability, postoperative support for patellar tendon rupture, and caudal cruciate ligament insufficiency.3<\/sup><\/p>\nStifle braces are not intended as first-line treatment for canine CCL rupture. Preliminary reports suggest that custom-made stifle braces stabilize the stifle; however, surgery should be considered the gold standard treatment.4<\/sup><\/p>\nWhen deciding whether a patient would benefit from a stifle brace prior, or as an alternative, to surgery, carefully consider the following factors:<\/p>\n
\n- Dog\u2019s activity level<\/li>\n
- Owner\u2019s expectations<\/li>\n
- Owner\u2019s willingness to comply with necessary care.<\/li>\n<\/ul>\n
Age should never be the sole reason for recommending against surgery. For example, an overweight 13-year-old Labrador retriever, with an acute CCL rupture, that spends most of the day recumbent and only goes outside to eliminate may be a better candidate for a stifle brace than a 13-year-old Labrador retriever in good body condition that goes on daily runs and hikes. The more active dog is better served by surgical treatment.<\/p>\n
Types<\/strong><\/p>\nAlthough numerous stifle braces are available for veterinary use, in our experience custom-made, hinged braces are the most effective. Proper construction is imperative to create a comfortable and functional brace (see Constructing a Custom Canine Stifle Brace<\/strong>).<\/p>\n\nConstructing a Custom Canine Stifle Brace<\/strong><\/h2>\nThe most important step when constructing a custom stifle brace is taking a proper cast mold of the affected limb.<\/p>\n
\n- Using soft fiberglass casting, cast the limb from mid thigh to just proximal to the paw (Figure 1<\/strong>).<\/li>\n
- A normal, standing angle at the stifle (approximately 130\u00b0) must be reflected in the cast as accurately as possible.<\/li>\n
- The standing angle is most easily accomplished by either applying the cast:\n
\n- While the patient is standing<\/li>\n
- With patient in lateral recumbency and the limb in a neutral position.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
![\"FIGURE](\"https:\/\/todaysveterinarypractice.com\/wp-content\/uploads\/sites\/4\/2016\/01\/T1601C11_Fig01.jpg\")
<\/a>FIGURE 1. Patient being casted for a left stifle brace. Ideally, casting is performed with the patient standing and bearing weight on the affected limb.<\/p><\/div>\n
Once the cast is made, send it to an orthotist, who will:<\/p>\n
\n- Pour the cast with plaster of Paris to create a positive model of the affected limb (Figure 2<\/strong>).<\/li>\n<\/ul>\n
![\"FIGURE](\"https:\/\/todaysveterinarypractice.com\/wp-content\/uploads\/sites\/4\/2016\/01\/T1601C11_Fig02-814x300.jpg\")
<\/a>FIGURE 2. The stifle casting is poured with plaster of Paris (A) to create a positive model of the affected limb (B). Photo courtesy Jeff Collins<\/em><\/p><\/div>\n
\n\n- Modify the mold to accommodate for bony prominences and sensitive areas as well as sculpt it to fit the affected limb.<\/li>\n
- Heat and vacuum-form foam and high-temperature thermoplastic around the mold in varying layers\/designs to create the most functional custom product (Figure 3<\/strong>).<\/li>\n<\/ul>\n
![\"FIGURE](\"https:\/\/todaysveterinarypractice.com\/wp-content\/uploads\/sites\/4\/2016\/01\/T1601C11_Fig03.jpg\")
<\/a>FIGURE 3. A functional, hinged stifle brace on a patient with a cranial cruciate ligament rupture. Photo courtesy Jeff Collins<\/em><\/p><\/div>\n<\/div>\nWhile braces that are not custom-made are more affordable and easily acquired, they do not support the stifle or eliminate instability. Furthermore, if the brace is not designed to fit a specific patient, rubbing of the skin against the brace can lead to skin wounds (see Fitting & Using Custom Stifle Braces<\/strong>).<\/p>\n\nFitting & Using Custom Stifle Braces<\/strong><\/h2>\nWhen the brace arrives, schedule a fitting appointment to confirm proper fit for that particular device to the patient (Figure 4<\/strong>) and show the owner how to properly place and remove the device. Instruct the owner to:<\/p>\n\n- Adjust and check the brace frequently in the first 72 hours to help find the best fit. It usually takes 24 to 72 hours for the patient to become accustomed to the brace, and during this time its gait may be altered.<\/li>\n
- Remove the brace at night while the animal sleeps to help reduce risk for swelling.<\/li>\n
- During the first 2 weeks, check the brace and areas of contact at least twice daily for sores or damage to the device.<\/li>\n
- Schedule re-evaluation appointment 2 weeks after the initial brace fitting to ensure that the brace still fits appropriately and there are no concerns or problems.<\/li>\n<\/ul>\n
![\"FIGURE](\"https:\/\/todaysveterinarypractice.com\/wp-content\/uploads\/sites\/4\/2016\/01\/T1601C11_Fig04.jpg\")
<\/a>FIGURE 4. At the fitting appointment, proper fit and alignment are confirmed. Have the patient walk around to ensure that the brace does not slip or slide, which could lead to rub sores and impaired function.<\/p><\/div>\n
In addition:<\/p>\n
\n- Explain that there may be some areas where the hair may rub off and form a callus (Figure 5<\/strong>); this is not unusual but should never progress to an open sore.<\/li>\n
- If an open sore is noted, have the owner schedule re-evaluation as soon as possible.<\/li>\n
- Should the brace become wet, instruct the owner to remove it immediately and allow it to dry before placing it back on the patient.<\/li>\n<\/ul>\n
![\"FIGURE](\"https:\/\/todaysveterinarypractice.com\/wp-content\/uploads\/sites\/4\/2016\/01\/T1601C11_Fig05.jpg\")
<\/a>FIGURE 5. Owners should be informed that the stifle brace may contact some areas of the skin, and the hair may rub off and form a callus. This occurs most commonly if the brace extends distally toward the hock, as in this patient. This patient also exhibits an area of erythematous at the distal aspect of the callus. If left untreated or not monitored, this area of erythematous could progress into an open wound that would require more intense management.<\/p><\/div>\n<\/div>\n
Mechanics<\/strong><\/h3>\nIn theory, custom-made, functional hinged stifle braces remove the strain on the CCL, allowing the stifle joint to function normally and the patient to perform normal activities of daily living, which should reduce muscle atrophy.<\/p>\n
The brace provides a set path of motion for the tibia under the femur by locking onto the long bones of the leg and preventing excessive cranial\u2013caudal movements.3<\/sup> Unfortunately, data proving this in veterinary medicine are lacking; furthermore, the theory of why functional hinged stifle braces work can only be applied to custom-made braces.<\/p>\nMedial Shoulder Instability<\/strong><\/h2>\nMedial shoulder instability is a common cause of forelimb lameness in dogs. Diagnostics and treatment options have been well documented (Figure 6<\/strong>).5-7<\/sup> However, postoperative rehabilitation programs and nonsurgical treatment options are not well described. Depending on the severity of the instability, conservative treatment using a rehabilitation therapy program or surgical intervention followed by rehabilitation therapy may be considered.<\/p>\n![\"FIGURE](\"https:\/\/todaysveterinarypractice.com\/wp-content\/uploads\/sites\/4\/2016\/01\/T1601C11_Fig06.jpg\")
<\/a>FIGURE 6. Shoulder arthroscopy of a patient with medial shoulder syndrome; note disruption of the subscapularis and medial glenohumeral ligament.<\/p><\/div>\n
Indications<\/strong><\/h3>\nSome surgeons and rehabilitation therapists use a commercially available neoprene shoulder stabilization system to protect the shoulder during the rehabilitation period. No published studies have compared recovery with and without a shoulder support system following medial shoulder instability surgery. However, thousands of arthroscopic procedures to address medial shoulder instability have been performed at our institution, and use of a stabilization system is considered the standard of care following arthroscopic or open medial shoulder instability repair.<\/p>\n
Types<\/strong><\/h3>\nThe shoulder stabilization system consists of removable, breathable neoprene\/polyester sleeves that are placed over the shoulders of the patient and attached securely via Velcro to each forelimb. One- or 2-inch double-sided Velcro strips serve as a hobble strap to prevent abduction of the forelimbs (Figure 7<\/strong>). Other shoulder stabilization devices include the shoulder spica stabilization vest (Figure 8<\/strong>) and Velpeau sling (Figure 9<\/strong>).<\/p>\n![\"FIGURE](\"https:\/\/todaysveterinarypractice.com\/wp-content\/uploads\/sites\/4\/2016\/01\/T1601C11_Fig07.jpg\")
<\/a>FIGURE 7. A shoulder stabilization system consists of removable, breathable neoprene\/polyester sleeves that are placed over the shoulders of the patient and attached securely with Velcro to each forelimb. One- or 2-inch double-sided Velcro strips serve as a hobble strap to prevent abduction of the limbs.<\/p><\/div>\n
![\"FIGURE](\"https:\/\/todaysveterinarypractice.com\/wp-content\/uploads\/sites\/4\/2016\/01\/T1601C11_Fig08.jpg\")
<\/a>FIGURE 8. Patient wearing shoulder spica stabilization vest.<\/p><\/div>\n
![\"FIGURE](\"https:\/\/todaysveterinarypractice.com\/wp-content\/uploads\/sites\/4\/2016\/01\/T1601C11_Fig09.jpg\")
<\/a>FIGURE 9. Patient wearing shoulder Velpeau sling.<\/p><\/div>\n
Mechanics<\/strong><\/h3>\nThe shoulder stabilization system, which can be applied following arthroscopy while the patient is under anesthesia, limits abduction, flexion, and extension of the shoulder but allows for full weight bearing. Patients are able to bear weight immediately and adapt quickly to the device. A shoulder stabilization device can be worn continually for several months with minimal irritation and can be removed and reapplied easily for rehabilitation therapy.<\/p>\n
Carpal and Tarsal Injuries<\/strong><\/h2>\nIndications<\/strong><\/h3>\nCarpal and tarsal devices have been used with both humans and dogs with hyperextension injuries, sprains and strains, and Achilles tendon disruption. Orthotic devices can be used for both nonsurgical management and to enhance postoperative management of these conditions.<\/p>\n
Types<\/strong><\/h3>\nDevice options include:<\/p>\n
\n- \n
\n- Support wraps, with or without thermoplastic (Figure 10<\/strong>)<\/li>\n
- Custom braces<\/li>\n
- Hinged braces (Figure 11<\/strong>).<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
![\"FIGURE](\"https:\/\/todaysveterinarypractice.com\/wp-content\/uploads\/sites\/4\/2016\/01\/T1601C11_Fig10.jpg\")
<\/a>FIGURE 10. Neoprene carpal support wrap with thermoplastic for additional support.<\/p><\/div>\n
![\"FIGURE](\"https:\/\/todaysveterinarypractice.com\/wp-content\/uploads\/sites\/4\/2016\/01\/T1601C11_Fig11.jpg\")
<\/a>FIGURE 11. Patient that sustained a bilateral Achilles tendon rupture secondary to trauma wearing bilateral controlled, range-of-motion, hinged tarsal braces.<\/p><\/div>\n
Mechanics<\/strong><\/h3>\nDepending on the injury and recommended treatment plan, many of these devices can be designed to allow dynamization of the tissues over the recovery period, which gradually increases forces on the tendons and stimulates healing. Patients can also be transitioned to a less cumbersome device during the recovery period to support healing.<\/p>\n
Fitting<\/strong><\/h3>\nWhen the device arrives, schedule a fitting appointment, following the same parameters as for CCL braces (see Fitting & Using Custom Stifle Braces<\/strong>; Figure 12<\/strong>). In addition, wraps and braces used for the carpus and tarsus need to be snug to be effective, but not so tight that the toes swell. If the toes swell, the brace should be removed for a few hours until the swelling resolves. Massaging the toes helps the swelling subside. If excessive sweating is noted, talc powder may be used to help keep the skin and device dry.<\/p>\n![\"FIGURE](\"https:\/\/todaysveterinarypractice.com\/wp-content\/uploads\/sites\/4\/2016\/01\/T1601C11_Fig12.jpg\")
<\/a>FIGURE 12. When the wrap or brace arrives, schedule a fitting appointment to confirm fit and show the owner how to properly place and remove the device.<\/p><\/div>\n
Hip Lixation<\/strong><\/h2>\nEhmer slings are commonly used in dogs to protect the hip following conservative or surgical treatment of coxofemoral luxation.3<\/sup> Ehmer slings are not easily removed and reapplied, limiting the ability to perform rehabilitation therapy. In addition, Ehmer slings commonly cause secondary skin irritation and abrasions.<\/p>\nAn alternative is the vest with Ehmer sling, a custom form-fitting sling that allows for proper positioning and immobilization, while enabling access for rehabilitation therapy (Figure 13<\/strong>). This sling is manufactured using a fabric that is stretchable, breathable, antimicrobial, and bactericidal.<\/p>\n![\"FIGURE](\"https:\/\/todaysveterinarypractice.com\/wp-content\/uploads\/sites\/4\/2016\/01\/T1601C11_Fig13.jpg\")
<\/a>FIGURE 13. Patient wearing a vest with Ehmer sling, which allows for proper positioning and immobilization, while providing access for rehabilitation therapy.<\/p><\/div>\n
Limb Salvage & Prosthetics<\/h2>\nIndications<\/strong><\/h3>\nNeoplasia and severe trauma are common reasons for amputation; however, giant breeds or dogs with concurrent orthopedic disease may respond poorly to amputation.3<\/sup> Forelimb (Figure 14<\/strong>) and hindlimb (Figure 15<\/strong>) prostheses offer an alternative to full-limb amputation. To be a candidate for a prosthetic, a partial limb amputation must be performed (see Prosthesis Success<\/strong>).<\/p>\n![\"FIGURE](\"https:\/\/todaysveterinarypractice.com\/wp-content\/uploads\/sites\/4\/2016\/01\/T1601C11_Fig14.jpg\")
<\/a>FIGURE 14. Forelimb prosthesis for a patient after limb-sparing surgery for osteosarcoma.<\/p><\/div>\n
![\"\"](\"https:\/\/todaysveterinarypractice.com\/wp-content\/uploads\/sites\/4\/2016\/01\/T1601C11_Fig151.jpg\")
<\/a>FIGURE 15. Hindlimb prosthesis for a patient after limb-sparing surgery for a highly comminuted fracture.<\/p><\/div>\n
\nProsthesis Success<\/b><\/h2>\n
A recent study in humans showed that the level of amputation is a critical factor in prosthesis success. Patients in this study had better outcomes when the amputation was performed distal to the carpus or tarsus.8<\/sup> However, this is not always practical. Ideally, the elbow and tarsus should be spared.<\/p>\nSurgical technique is also thought to have a significant impact on the success of prostheses.3<\/sup> Correct incision placement, proper soft tissue technique, and meticulous management of nerve and vascular structures are vital to achieving a successful outcome.3<\/sup> Thus, consultation with a small animal veterinary surgeon is recommended. However, both surgeons and general practitioners are instrumental in the postoperative management of the patient outfitted with a prosthetic.<\/p>\n<\/div>\nTypes<\/strong><\/h3>\nMultiple types of prosthetics are available for veterinary use. Every external prosthesis requires some type of suspension system to keep it from falling off the residual limb. Suspension systems may include:<\/p>\n
\n- Self-suspension of the socket, which makes use of the anatomic shape of the residual limb (knee disarticulation) (Figure 16<\/strong>)<\/li>\n
- Suction suspension, which includes the use of an appropriate suction socket design of a gel suspension liner (Figure 17<\/strong>)<\/li>\n
- Suspension devices or harnesses, such as belts, cuffs, wedges, straps, and sleeves.<\/li>\n<\/ul>\n
![\"FIGURE](\"https:\/\/todaysveterinarypractice.com\/wp-content\/uploads\/sites\/4\/2016\/01\/T1601C11_Fig16.jpg\")
<\/a>FIGURE 16. Patient wearing a forelimb prosthesis with self-suspension of the socket, which makes use of the anatomic shape of the residual limb.<\/p><\/div>\n
- \n
- Enhance proprioception\/joint position sense<\/li>\n
- Permit the injured limb to relax<\/li>\n
- Reduce fatigue in the injured limb<\/li>\n
- Provide some mechanical protection against impact<\/li>\n
- Slow movement down to allow muscles time to react and control motion.<\/li>\n<\/ul>\n
Categories of knee braces in human medicine include the following:<\/p>\n
- \n
- Prophylactic braces<\/em> prevent or reduce severity of knee injuries in contact sports.<\/li>\n
- Functional braces<\/em> provide stability for unstable knees.<\/li>\n
- Rehabilitative braces<\/em> allow protected and controlled motion during the rehabilitation of injured knees.<\/li>\n
- Patellofemoral braces<\/em> improve patellar tracking and relieve anterior pain.<\/li>\n<\/ul>\n
Of these braces, only functional knee braces<\/em> are used in veterinary medicine.<\/p>\n
Indications<\/strong><\/h3>\n
The most common indication for a canine stifle brace is CCL insufficiency, but these braces are also used for postoperative support for medial or lateral collateral ligament instability, postoperative support for patellar tendon rupture, and caudal cruciate ligament insufficiency.3<\/sup><\/p>\n
Stifle braces are not intended as first-line treatment for canine CCL rupture. Preliminary reports suggest that custom-made stifle braces stabilize the stifle; however, surgery should be considered the gold standard treatment.4<\/sup><\/p>\n
When deciding whether a patient would benefit from a stifle brace prior, or as an alternative, to surgery, carefully consider the following factors:<\/p>\n
- \n
- Dog\u2019s activity level<\/li>\n
- Owner\u2019s expectations<\/li>\n
- Owner\u2019s willingness to comply with necessary care.<\/li>\n<\/ul>\n
Age should never be the sole reason for recommending against surgery. For example, an overweight 13-year-old Labrador retriever, with an acute CCL rupture, that spends most of the day recumbent and only goes outside to eliminate may be a better candidate for a stifle brace than a 13-year-old Labrador retriever in good body condition that goes on daily runs and hikes. The more active dog is better served by surgical treatment.<\/p>\n
Types<\/strong><\/p>\n
Although numerous stifle braces are available for veterinary use, in our experience custom-made, hinged braces are the most effective. Proper construction is imperative to create a comfortable and functional brace (see Constructing a Custom Canine Stifle Brace<\/strong>).<\/p>\n
\nConstructing a Custom Canine Stifle Brace<\/strong><\/h2>\n
The most important step when constructing a custom stifle brace is taking a proper cast mold of the affected limb.<\/p>\n
- \n
- Using soft fiberglass casting, cast the limb from mid thigh to just proximal to the paw (Figure 1<\/strong>).<\/li>\n
- A normal, standing angle at the stifle (approximately 130\u00b0) must be reflected in the cast as accurately as possible.<\/li>\n
- The standing angle is most easily accomplished by either applying the cast:\n
- \n
- While the patient is standing<\/li>\n
- With patient in lateral recumbency and the limb in a neutral position.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/a>
FIGURE 1. Patient being casted for a left stifle brace. Ideally, casting is performed with the patient standing and bearing weight on the affected limb.<\/p><\/div>\n
Once the cast is made, send it to an orthotist, who will:<\/p>\n
- \n
- Pour the cast with plaster of Paris to create a positive model of the affected limb (Figure 2<\/strong>).<\/li>\n<\/ul>\n<\/a>
FIGURE 2. The stifle casting is poured with plaster of Paris (A) to create a positive model of the affected limb (B). Photo courtesy Jeff Collins<\/em><\/p><\/div>\n
\n- \n
- Modify the mold to accommodate for bony prominences and sensitive areas as well as sculpt it to fit the affected limb.<\/li>\n
- Heat and vacuum-form foam and high-temperature thermoplastic around the mold in varying layers\/designs to create the most functional custom product (Figure 3<\/strong>).<\/li>\n<\/ul>\n<\/a>
FIGURE 3. A functional, hinged stifle brace on a patient with a cranial cruciate ligament rupture. Photo courtesy Jeff Collins<\/em><\/p><\/div>\n<\/div>\n
While braces that are not custom-made are more affordable and easily acquired, they do not support the stifle or eliminate instability. Furthermore, if the brace is not designed to fit a specific patient, rubbing of the skin against the brace can lead to skin wounds (see Fitting & Using Custom Stifle Braces<\/strong>).<\/p>\n
\nFitting & Using Custom Stifle Braces<\/strong><\/h2>\n
When the brace arrives, schedule a fitting appointment to confirm proper fit for that particular device to the patient (Figure 4<\/strong>) and show the owner how to properly place and remove the device. Instruct the owner to:<\/p>\n
- \n
- Adjust and check the brace frequently in the first 72 hours to help find the best fit. It usually takes 24 to 72 hours for the patient to become accustomed to the brace, and during this time its gait may be altered.<\/li>\n
- Remove the brace at night while the animal sleeps to help reduce risk for swelling.<\/li>\n
- During the first 2 weeks, check the brace and areas of contact at least twice daily for sores or damage to the device.<\/li>\n
- Schedule re-evaluation appointment 2 weeks after the initial brace fitting to ensure that the brace still fits appropriately and there are no concerns or problems.<\/li>\n<\/ul>\n<\/a>
FIGURE 4. At the fitting appointment, proper fit and alignment are confirmed. Have the patient walk around to ensure that the brace does not slip or slide, which could lead to rub sores and impaired function.<\/p><\/div>\n
In addition:<\/p>\n
- \n
- Explain that there may be some areas where the hair may rub off and form a callus (Figure 5<\/strong>); this is not unusual but should never progress to an open sore.<\/li>\n
- If an open sore is noted, have the owner schedule re-evaluation as soon as possible.<\/li>\n
- Should the brace become wet, instruct the owner to remove it immediately and allow it to dry before placing it back on the patient.<\/li>\n<\/ul>\n
<\/a>FIGURE 5. Owners should be informed that the stifle brace may contact some areas of the skin, and the hair may rub off and form a callus. This occurs most commonly if the brace extends distally toward the hock, as in this patient. This patient also exhibits an area of erythematous at the distal aspect of the callus. If left untreated or not monitored, this area of erythematous could progress into an open wound that would require more intense management.<\/p><\/div>\n<\/div>\n
Mechanics<\/strong><\/h3>\n
In theory, custom-made, functional hinged stifle braces remove the strain on the CCL, allowing the stifle joint to function normally and the patient to perform normal activities of daily living, which should reduce muscle atrophy.<\/p>\n
The brace provides a set path of motion for the tibia under the femur by locking onto the long bones of the leg and preventing excessive cranial\u2013caudal movements.3<\/sup> Unfortunately, data proving this in veterinary medicine are lacking; furthermore, the theory of why functional hinged stifle braces work can only be applied to custom-made braces.<\/p>\n
Medial Shoulder Instability<\/strong><\/h2>\n
Medial shoulder instability is a common cause of forelimb lameness in dogs. Diagnostics and treatment options have been well documented (Figure 6<\/strong>).5-7<\/sup> However, postoperative rehabilitation programs and nonsurgical treatment options are not well described. Depending on the severity of the instability, conservative treatment using a rehabilitation therapy program or surgical intervention followed by rehabilitation therapy may be considered.<\/p>\n
<\/a>FIGURE 6. Shoulder arthroscopy of a patient with medial shoulder syndrome; note disruption of the subscapularis and medial glenohumeral ligament.<\/p><\/div>\n
Indications<\/strong><\/h3>\n
Some surgeons and rehabilitation therapists use a commercially available neoprene shoulder stabilization system to protect the shoulder during the rehabilitation period. No published studies have compared recovery with and without a shoulder support system following medial shoulder instability surgery. However, thousands of arthroscopic procedures to address medial shoulder instability have been performed at our institution, and use of a stabilization system is considered the standard of care following arthroscopic or open medial shoulder instability repair.<\/p>\n
Types<\/strong><\/h3>\n
The shoulder stabilization system consists of removable, breathable neoprene\/polyester sleeves that are placed over the shoulders of the patient and attached securely via Velcro to each forelimb. One- or 2-inch double-sided Velcro strips serve as a hobble strap to prevent abduction of the forelimbs (Figure 7<\/strong>). Other shoulder stabilization devices include the shoulder spica stabilization vest (Figure 8<\/strong>) and Velpeau sling (Figure 9<\/strong>).<\/p>\n
<\/a>FIGURE 7. A shoulder stabilization system consists of removable, breathable neoprene\/polyester sleeves that are placed over the shoulders of the patient and attached securely with Velcro to each forelimb. One- or 2-inch double-sided Velcro strips serve as a hobble strap to prevent abduction of the limbs.<\/p><\/div>\n
<\/a>FIGURE 8. Patient wearing shoulder spica stabilization vest.<\/p><\/div>\n
<\/a>FIGURE 9. Patient wearing shoulder Velpeau sling.<\/p><\/div>\n
Mechanics<\/strong><\/h3>\n
The shoulder stabilization system, which can be applied following arthroscopy while the patient is under anesthesia, limits abduction, flexion, and extension of the shoulder but allows for full weight bearing. Patients are able to bear weight immediately and adapt quickly to the device. A shoulder stabilization device can be worn continually for several months with minimal irritation and can be removed and reapplied easily for rehabilitation therapy.<\/p>\n
Carpal and Tarsal Injuries<\/strong><\/h2>\n
Indications<\/strong><\/h3>\n
Carpal and tarsal devices have been used with both humans and dogs with hyperextension injuries, sprains and strains, and Achilles tendon disruption. Orthotic devices can be used for both nonsurgical management and to enhance postoperative management of these conditions.<\/p>\n
Types<\/strong><\/h3>\n
Device options include:<\/p>\n
- \n
- \n
- \n
- Support wraps, with or without thermoplastic (Figure 10<\/strong>)<\/li>\n
- Custom braces<\/li>\n
- Hinged braces (Figure 11<\/strong>).<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
<\/a>FIGURE 10. Neoprene carpal support wrap with thermoplastic for additional support.<\/p><\/div>\n
<\/a>FIGURE 11. Patient that sustained a bilateral Achilles tendon rupture secondary to trauma wearing bilateral controlled, range-of-motion, hinged tarsal braces.<\/p><\/div>\n
Mechanics<\/strong><\/h3>\n
Depending on the injury and recommended treatment plan, many of these devices can be designed to allow dynamization of the tissues over the recovery period, which gradually increases forces on the tendons and stimulates healing. Patients can also be transitioned to a less cumbersome device during the recovery period to support healing.<\/p>\n
Fitting<\/strong><\/h3>\n
When the device arrives, schedule a fitting appointment, following the same parameters as for CCL braces (see Fitting & Using Custom Stifle Braces<\/strong>; Figure 12<\/strong>). In addition, wraps and braces used for the carpus and tarsus need to be snug to be effective, but not so tight that the toes swell. If the toes swell, the brace should be removed for a few hours until the swelling resolves. Massaging the toes helps the swelling subside. If excessive sweating is noted, talc powder may be used to help keep the skin and device dry.<\/p>\n
<\/a>FIGURE 12. When the wrap or brace arrives, schedule a fitting appointment to confirm fit and show the owner how to properly place and remove the device.<\/p><\/div>\n
Hip Lixation<\/strong><\/h2>\n
Ehmer slings are commonly used in dogs to protect the hip following conservative or surgical treatment of coxofemoral luxation.3<\/sup> Ehmer slings are not easily removed and reapplied, limiting the ability to perform rehabilitation therapy. In addition, Ehmer slings commonly cause secondary skin irritation and abrasions.<\/p>\n
An alternative is the vest with Ehmer sling, a custom form-fitting sling that allows for proper positioning and immobilization, while enabling access for rehabilitation therapy (Figure 13<\/strong>). This sling is manufactured using a fabric that is stretchable, breathable, antimicrobial, and bactericidal.<\/p>\n
<\/a>FIGURE 13. Patient wearing a vest with Ehmer sling, which allows for proper positioning and immobilization, while providing access for rehabilitation therapy.<\/p><\/div>\n
Limb Salvage & Prosthetics<\/h2>\n
Indications<\/strong><\/h3>\n
Neoplasia and severe trauma are common reasons for amputation; however, giant breeds or dogs with concurrent orthopedic disease may respond poorly to amputation.3<\/sup> Forelimb (Figure 14<\/strong>) and hindlimb (Figure 15<\/strong>) prostheses offer an alternative to full-limb amputation. To be a candidate for a prosthetic, a partial limb amputation must be performed (see Prosthesis Success<\/strong>).<\/p>\n
<\/a>FIGURE 14. Forelimb prosthesis for a patient after limb-sparing surgery for osteosarcoma.<\/p><\/div>\n
<\/a>FIGURE 15. Hindlimb prosthesis for a patient after limb-sparing surgery for a highly comminuted fracture.<\/p><\/div>\n
\nProsthesis Success<\/b><\/h2>\n
A recent study in humans showed that the level of amputation is a critical factor in prosthesis success. Patients in this study had better outcomes when the amputation was performed distal to the carpus or tarsus.8<\/sup> However, this is not always practical. Ideally, the elbow and tarsus should be spared.<\/p>\n
Surgical technique is also thought to have a significant impact on the success of prostheses.3<\/sup> Correct incision placement, proper soft tissue technique, and meticulous management of nerve and vascular structures are vital to achieving a successful outcome.3<\/sup> Thus, consultation with a small animal veterinary surgeon is recommended. However, both surgeons and general practitioners are instrumental in the postoperative management of the patient outfitted with a prosthetic.<\/p>\n<\/div>\n
Types<\/strong><\/h3>\n
Multiple types of prosthetics are available for veterinary use. Every external prosthesis requires some type of suspension system to keep it from falling off the residual limb. Suspension systems may include:<\/p>\n
- \n
- Self-suspension of the socket, which makes use of the anatomic shape of the residual limb (knee disarticulation) (Figure 16<\/strong>)<\/li>\n
- Suction suspension, which includes the use of an appropriate suction socket design of a gel suspension liner (Figure 17<\/strong>)<\/li>\n
- Suspension devices or harnesses, such as belts, cuffs, wedges, straps, and sleeves.<\/li>\n<\/ul>\n
<\/a>FIGURE 16. Patient wearing a forelimb prosthesis with self-suspension of the socket, which makes use of the anatomic shape of the residual limb.<\/p><\/div>\n
- Suction suspension, which includes the use of an appropriate suction socket design of a gel suspension liner (Figure 17<\/strong>)<\/li>\n
- Support wraps, with or without thermoplastic (Figure 10<\/strong>)<\/li>\n
- Explain that there may be some areas where the hair may rub off and form a callus (Figure 5<\/strong>); this is not unusual but should never progress to an open sore.<\/li>\n
- Pour the cast with plaster of Paris to create a positive model of the affected limb (Figure 2<\/strong>).<\/li>\n<\/ul>\n
- Using soft fiberglass casting, cast the limb from mid thigh to just proximal to the paw (Figure 1<\/strong>).<\/li>\n
- Functional braces<\/em> provide stability for unstable knees.<\/li>\n
- Prophylactic braces<\/em> prevent or reduce severity of knee injuries in contact sports.<\/li>\n