Tendon Injuries

Tendon injuries in guinea pigs encompass a range of damage to the fibrous connective tissue structures that connect muscles to bones and enable movement of the limbs and body. These injuries can range from mild strains with microscopic fiber damage to complete tendon ruptures that severely impair function. Tendons in guinea pigs, like those in other animals, consist primarily of collagen fibers arranged in parallel bundles that provide tremendous tensile strength, allowing muscles to transmit force to bones and produce movement. When these structures are damaged through trauma, overuse, or degenerative processes, guinea pigs experience pain, limited mobility, and difficulty performing normal activities.

Tendon injuries occur with moderate frequency in guinea pigs, often resulting from accidents during handling, falls from heights, entrapment of limbs in cage furnishings, or sudden movements while navigating their environment. Guinea pigs housed in multi-level enclosures with ramps or stairs face increased risk of falls that can damage tendons. These injuries may also occur during interactions with cage mates, particularly in situations involving fighting or rough play. Additionally, guinea pigs with underlying conditions that weaken connective tissues, most notably vitamin C deficiency affecting collagen synthesis, are predisposed to tendon injuries from lesser degrees of trauma.

The impact of tendon injuries on guinea pig health and quality of life depends on the severity and location of the damage. Minor strains may cause temporary lameness and discomfort that resolves with rest and supportive care. More severe injuries including partial or complete tendon tears cause significant pain and functional impairment affecting the guinea pig's ability to walk, eat, groom, and interact normally. Because guinea pigs are prey animals that rely on mobility to feel safe, tendon injuries causing lameness create psychological stress in addition to physical disability. Weight bearing on an injured limb may be refused entirely, and guinea pigs may become withdrawn and reluctant to engage in normal activities.

Treatability of tendon injuries in guinea pigs varies considerably based on the specific injury characteristics. Many minor tendon strains respond well to conservative management including rest, pain control, and supportive care, with gradual return to normal function over several weeks. More severe injuries may require extended immobilization or, in some cases, surgical repair to restore tendon continuity and function. Early detection and appropriate veterinary care from a practitioner experienced with exotic animals provides the best outcomes. However, because guinea pigs hide signs of pain and injury, caregivers must remain vigilant for subtle changes in gait, activity, or behavior that might indicate tendon problems.

Primary causes of tendon injuries in guinea pigs typically involve traumatic events that place excessive stress on tendon structures. Falls represent a major cause, occurring when guinea pigs are dropped during handling, fall from furniture or laps, or tumble from elevated areas within their enclosures. Sudden forceful movements such as jumping, twisting, or landing awkwardly can strain or tear tendons, particularly in the limbs. Entrapment injuries occur when limbs become caught in cage bars, wire flooring, exercise wheels, or other enclosure features, with the guinea pig's struggle to free itself damaging tendons. Fighting between cage mates can result in tendon injuries from bites, kicks, or forceful pulling motions during altercations.

While tendon injuries themselves are not hereditary, genetic factors may influence susceptibility through connective tissue quality. Guinea pigs with inherited connective tissue abnormalities may have tendons that are more prone to injury. Satin guinea pigs with osteodystrophy may have secondary effects on connective tissue health. Congenital abnormalities in limb structure could alter biomechanics in ways that increase tendon stress. However, most tendon injuries result from environmental and traumatic factors rather than genetic predisposition. No specific breed is known to have hereditary tendon weakness, though individual variation in tissue quality exists within all populations.

Environmental factors significantly influence tendon injury risk through housing design and husbandry practices. Multi-level enclosures with ramps or stairs increase fall risk, particularly if surfaces are slippery or ramps are steep. Wire flooring can cause limb entrapment injuries and creates unnatural walking surfaces stressing tendons. Inappropriate wheel designs allow leg entrapment. Cluttered enclosures with unstable objects create hazards. Slippery surfaces prevent normal traction during movement. Inadequate space forcing guinea pigs to make awkward movements in confined areas increases injury risk. Poor lighting preventing guinea pigs from seeing obstacles contributes to falls and missteps.

Risk factors for tendon injuries include several individual and environmental considerations. Vitamin C deficiency critically weakens tendons by impairing collagen synthesis, making even minor trauma potentially injurious. Obesity increases mechanical stress on tendons during movement. Very active guinea pigs engaging in frequent running, jumping, or popcorning behavior have more opportunities for injury. Young guinea pigs may be more prone to accidents due to inexperience and high activity levels. Senior guinea pigs may have degenerative changes in tendons making them more vulnerable to injury. Guinea pigs with previous tendon injuries may have weakened tissues predisposing to re-injury.

The mechanism of tendon injury involves exceeding the tissue's capacity to withstand applied force. Acute injuries occur when sudden excessive load causes immediate fiber damage, ranging from minor strain affecting only some fibers to complete rupture severing the tendon entirely. The specific pattern of damage depends on force magnitude, direction, and rate of application. Twisting forces create different injury patterns than straight tensile loading. Tendons weakened by underlying conditions fail at lower force thresholds. Once damaged, the inflammatory response begins healing but also causes swelling and pain. Scar tissue forming during healing may not have the same strength and elasticity as original tendon tissue, affecting long-term function and predisposing to re-injury.

Early warning signs of tendon injuries may be subtle in guinea pigs who instinctively hide pain and weakness. Initial indicators include slight favoring of one limb, barely perceptible changes in gait, or minor hesitation before movements that stress the affected tendon. Affected guinea pigs might show subtle reluctance to engage in normal activities like climbing or jumping that they previously performed readily. Slightly decreased activity level may be the only early sign, with the guinea pig spending more time resting than usual. Caregivers familiar with their guinea pig's normal movement patterns are most likely to notice these subtle early changes that indicate a developing problem.

As tendon injuries become more apparent, characteristic symptoms of lameness and mobility impairment develop. Visible limping or favoring of the affected limb becomes obvious during movement. Guinea pigs may refuse to bear weight on a severely injured limb, holding it elevated while moving or resting. Difficulty rising from resting positions indicates pain when engaging muscles and tendons to stand. Reluctance to move at all may develop as the guinea pig learns that movement causes pain. Gait abnormalities including shortened stride length, hopping, or dragging of the affected limb indicate significant tendon dysfunction.

Behavioral changes associated with tendon injuries reflect both pain and functional limitations. Decreased appetite may result from pain, difficulty accessing food, or general malaise. Reduced social interaction occurs as affected guinea pigs avoid activities requiring movement. Vocalizations may increase, particularly when the injured area is touched or when attempting movement, or may decrease as the guinea pig becomes withdrawn. Grooming behaviors often decline as reaching various body parts becomes painful or difficult. Some guinea pigs become irritable or defensive when approached, anticipating pain from handling. Others become unusually passive and withdrawn.

Physical signs of tendon injury may be evident on examination of the affected area. Swelling around the injured tendon may be visible or palpable, indicating inflammation and possible hemorrhage. Heat may be detected over the injury site during the acute inflammatory phase. Tenderness is evident when the area is gently palpated, with the guinea pig reacting to touch. In complete ruptures, a palpable gap may be felt where tendon continuity is lost. Bruising may be visible on the skin surface over significant injuries. Abnormal positioning of the affected limb may indicate loss of normal tendon function. Muscle atrophy develops over time if the tendon injury limits use of associated muscles.

Symptom progression depends on the injury severity and whether appropriate treatment is provided. Minor strains may show gradual improvement over days to weeks with rest, with decreasing lameness and returning normal function. Untreated moderate injuries may stabilize but leave persistent dysfunction and chronic pain. Severe untreated injuries may worsen as the guinea pig continues attempting to use the damaged structure, potentially converting partial tears to complete ruptures. Chronic tendon problems develop when initial injuries fail to heal properly, leading to long-term lameness and disability. Secondary problems including compensatory injuries to other limbs from altered weight bearing can develop.

Emergency symptoms requiring immediate veterinary attention include signs of severe injury or complications. Sudden onset of complete inability to bear weight on a limb suggests significant tendon damage or concurrent bone injury requiring urgent evaluation. Visible deformity of a limb indicates serious structural damage. Obvious wound over a tendon area, particularly with exposed tissue, represents an emergency. Signs of severe pain including persistent vocalization, extreme reluctance to move, or dramatic behavior changes demand immediate attention. Open fractures associated with tendon injury are surgical emergencies. Any suspected tendon injury in a guinea pig with signs of shock requires immediate veterinary care.

Initial examination by a veterinarian experienced with exotic animals is essential for accurately diagnosing tendon injuries in guinea pigs. The examination begins with detailed history about the circumstances surrounding the injury, any witnessed trauma, the timeline of symptom development, and the guinea pig's housing and activity patterns. Physical examination includes careful observation of the guinea pig's posture, gait, and willingness to bear weight on each limb. Palpation of limbs evaluates for swelling, heat, pain responses, and abnormal mobility. Specific examination of suspected injury sites assesses tendon integrity and function. Gentle range of motion testing of joints evaluates for associated damage and pain.

Diagnostic testing helps characterize the injury and identify concurrent problems. Radiographs (X-rays) are typically performed to evaluate for bone fractures that commonly accompany tendon injuries or may cause similar symptoms. While tendons themselves are not directly visible on standard radiographs, changes in bone position or joint alignment may indicate tendon dysfunction. Advanced imaging including ultrasound provides direct visualization of soft tissue structures and can demonstrate tendon damage, swelling, and tears when available. Blood work may be recommended to evaluate overall health status and identify underlying conditions such as vitamin C deficiency that might have contributed to the injury.

Differential diagnosis for tendon injuries includes numerous conditions causing similar symptoms of lameness and restricted movement. Bone fractures are a primary differential, particularly for acute injuries, and must be ruled out through imaging. Joint problems including arthritis, dislocation, or ligament injuries may present similarly to tendon damage. Muscle injuries including strains and contusions cause lameness that may be difficult to distinguish from tendon problems. Abscesses in limbs create painful swelling potentially confused with tendon injury. Nerve damage from trauma may cause limb dysfunction without primary tendon involvement. Bumblefoot (pododermatitis) affecting feet causes lameness from a different mechanism. Thorough examination and appropriate diagnostics help differentiate these conditions.

Confirmation of tendon injury diagnosis and severity assessment guides treatment planning. The veterinarian determines which specific tendon or tendons are affected and characterizes the injury as mild strain, moderate partial tear, or severe complete rupture. Location of the injury affects treatment options and prognosis, with some locations more amenable to conservative management and others potentially requiring surgical intervention. Associated injuries to bones, joints, or other structures are identified and incorporated into the treatment plan. Underlying conditions that may have contributed to injury or could affect healing are identified. Based on comprehensive assessment, the veterinarian develops an individualized treatment plan and provides realistic expectations for recovery.

Emergency and immediate treatment for acute tendon injuries focuses on stabilization and pain control while preventing further damage. Guinea pigs with suspected tendon injuries should be confined to a small, padded enclosure to restrict movement and prevent additional trauma. Pain management with guinea pig-safe analgesics such as meloxicam is initiated promptly, as pain control is essential both for welfare and to allow proper examination. Gentle immobilization of severely affected limbs may be necessary to prevent worsening of partial tears. Cold therapy applied carefully during the first 24-48 hours may help reduce inflammation and pain, though this must be done without causing cold stress to the guinea pig. Nutritional support including vitamin C supplementation supports tissue healing from the outset.

Medical management forms the primary treatment approach for most tendon injuries in guinea pigs. Rest and activity restriction remain fundamental, with the guinea pig confined to a small single-level enclosure eliminating climbing, jumping, and other risky activities. Pain medication continues throughout the healing period, with adjustments based on comfort level and recovery progress. Anti-inflammatory medication reduces swelling and supports healing. Vitamin C supplementation at elevated doses supports collagen synthesis essential for tendon repair. Nutritional support through high-quality diet with adequate protein provides building blocks for tissue healing. Depending on injury location and severity, external support through splinting or bandaging may be recommended to protect the healing tendon.

Surgical repair may be indicated for severe tendon injuries, particularly complete ruptures of functionally critical tendons. Surgical options in guinea pigs are limited compared to larger animals due to their small size, but experienced exotic surgeons can perform tendon repair in appropriate cases. Surgery typically involves reattaching severed tendon ends or reinforcing partial tears. Post-surgical care includes immobilization, pain management, and very gradual rehabilitation. Surgical success depends on injury location, tissue quality, and post-operative compliance with activity restriction. Not all tendon injuries are surgical candidates, and the decision to pursue surgery weighs potential benefits against anesthetic risks and likelihood of success.

Supportive care throughout the treatment period addresses both healing and overall wellbeing. Assisted feeding with critical care formulas may be necessary if pain or disability limits normal eating. Vitamin C supplementation continues at therapeutic levels to support collagen production. Subcutaneous fluids may be provided if decreased drinking is a concern. Cage modifications including low-sided dishes, easy access to water, and soft bedding accommodate limited mobility. Gentle physical therapy exercises may be recommended during later recovery stages to prevent stiffness and support strength recovery. Environmental enrichment appropriate to activity restrictions maintains mental wellbeing during the confinement period.

Alternative and complementary approaches may provide additional support during tendon healing. Cold therapy during the acute phase followed by warm compresses during later healing may help manage inflammation and support blood flow. Laser therapy has been used in some practices to promote tissue healing, though evidence specifically for guinea pig tendon injuries is limited. Nutritional supplements including glucosamine and omega fatty acids may support connective tissue health. Gentle massage therapy during later recovery stages may help with scar tissue management and comfort. Acupuncture has been employed by some practitioners for pain management. All complementary approaches should be used alongside conventional veterinary treatment and only under professional guidance.

Treatment decisions must be individualized based on each guinea pig's specific injury, overall health, and practical considerations. Mild strains typically respond well to conservative management with rest and pain control. Moderate injuries may require extended recovery periods and close monitoring for complications. Severe injuries present difficult decisions weighing surgical intervention against conservative management. Quality of life considerations guide treatment intensity when injuries are extensive or involve poor healing candidates. Age and general health influence treatment options and likely outcomes. Financial considerations realistically affect available treatment options. Ongoing communication with the veterinary team ensures treatment remains appropriate as recovery progresses.

Recovery timeline for tendon injuries in guinea pigs varies considerably based on injury severity and the specific tendon involved. Minor tendon strains may show significant improvement within one to two weeks, with full recovery in three to four weeks of rest and supportive care. Moderate partial tears typically require six to eight weeks of restricted activity before healing is sufficient to allow gradual return to normal movement. Severe injuries including complete ruptures or surgically repaired tendons may require three to four months or longer for adequate healing. Tendon tissue heals slowly because of its relatively poor blood supply, making patience essential throughout the recovery process.

Post-treatment care during recovery focuses on protecting the healing tendon while gradually restoring function. Continued activity restriction in a small, single-level enclosure prevents reinjury during the vulnerable healing period. Pain medication is weaned gradually as comfort improves, with continued treatment if signs of discomfort persist. Vitamin C supplementation continues at therapeutic levels throughout healing. Gradual reintroduction of activity occurs in stages, typically beginning with slightly increased space and eventually progressing to normal enclosure size and furnishings. Physical therapy exercises introduced under veterinary guidance help rebuild strength and flexibility. Monitoring for complications or signs of reinjury remains important throughout recovery.

Prognostic factors influencing recovery outcomes from tendon injuries include injury characteristics, treatment appropriateness, and individual factors. Location of the injury affects prognosis, with some tendons more critical for function than others. Complete ruptures carry more guarded prognoses than partial tears or strains. Early appropriate treatment improves outcomes compared to delayed intervention. Underlying conditions affecting tissue quality, particularly vitamin C deficiency, negatively impact healing. Young healthy guinea pigs typically heal better than seniors or those with concurrent health problems. Compliance with activity restriction significantly influences whether healing proceeds smoothly or complications develop.

Long-term outlook for guinea pigs following tendon injuries depends on injury severity, treatment success, and prevention of reinjury. Many guinea pigs with minor to moderate tendon injuries achieve full recovery and return to normal function with appropriate treatment and adequate healing time. Some guinea pigs may retain minor residual changes but maintain good functional ability and quality of life. Severe injuries may result in persistent lameness or limited range of motion despite treatment. Healed tendons may have slightly altered characteristics making them more susceptible to reinjury, requiring ongoing attention to prevention. With proper care, most guinea pigs recovering from tendon injuries can enjoy good quality of life and normal activities, though some require permanent modifications to housing or activities.

Primary prevention of tendon injuries focuses on safe handling practices and appropriate husbandry. Proper handling techniques are essential, including always supporting the guinea pig's full body weight and never allowing unsupported dangling that could result in falls. Children should be supervised during guinea pig interactions and taught safe handling methods. Guinea pigs should be handled close to the ground or floor level to minimize fall distance if they jump or are accidentally dropped. Secure grip without excessive restraint prevents both escapes and struggling-related injuries. Calm, confident handling reduces stress responses that might lead to sudden movements and injury.

Environmental prevention addresses enclosure design and safety features. Single-level enclosures eliminate fall risks associated with ramps and multiple levels; if multi-level housing is used, ramps should have low inclines, secure footing, and side rails. Solid flooring prevents limb entrapment that occurs with wire floors. Exercise wheels if provided must be solid-surface with appropriate diameter to prevent back strain and limb entrapment. All cage furnishings should be stable and unable to tip or collapse. Sharp edges and potential entrapment points should be eliminated. Adequate space allows natural movement without forcing awkward positions in confined areas.

Dietary prevention supports strong tendon tissue through proper nutrition. Vitamin C supplementation is absolutely essential since deficiency directly impairs collagen synthesis and weakens tendons. Daily vitamin C intake through fresh vegetables and supplementation maintains tissue integrity. Adequate protein provides amino acids needed for connective tissue health. Balanced nutrition through high-quality pellets and appropriate hay intake supports overall tissue quality. Avoiding obesity through proper diet reduces mechanical stress on tendons during normal movement. Maintaining proper nutrition from acquisition through life ensures tendons develop and remain strong.

Health maintenance through regular veterinary care identifies problems that might predispose to injury. Routine wellness examinations allow assessment of body condition and detection of early joint or mobility problems. Dental care ensures proper chewing function to maintain nutritional intake supporting tissue health. Treatment of underlying conditions prevents secondary effects on connective tissue. Weight management prevents obesity-related stress on tendons. Addressing any mobility changes early prevents compensatory strain patterns that might lead to injury. Regular nail trimming prevents overgrowth that could affect gait and tendon stress.

Early intervention when potential tendon problems are noticed prevents progression to more serious injury. Any observed lameness, even mild, should prompt immediate activity restriction while veterinary evaluation is arranged. Reducing activity at the first sign of movement problems prevents converting minor strains to significant tears. Attention to changes in normal movement patterns catches problems early when intervention is most effective. If environmental hazards are identified after a near-miss incident, immediate correction prevents actual injury. Maintaining awareness of tendon injury signs and responding promptly provides the best protection against significant damage.

Daily management for guinea pigs recovering from or living with tendon injuries requires modifications that protect affected structures while maintaining quality of life. Activity level should be appropriate to healing status, with strict restriction during acute recovery gradually transitioning to normal activity as healing progresses. Feeding arrangements should accommodate any mobility limitations, with food and water easily accessible without climbing or stretching. Daily pain assessment guides medication needs, watching for behavioral indicators of discomfort. Monitoring of the affected limb tracks healing progress and identifies any setbacks. Gentle handling protects healing tissues while maintaining social bonding with caregivers.

Home environment modifications create safe spaces that accommodate mobility limitations and prevent reinjury. Single-level housing eliminates fall risks during recovery and may be preferable long-term for guinea pigs with chronic tendon weakness. Soft, supportive bedding cushions affected limbs and provides comfortable resting surfaces. Low-entry access points to hiding areas eliminate climbing requirements. Stable cage furnishings prevent tipping accidents. Non-slip surfaces throughout the enclosure provide secure footing during movement. Space should be sufficient for comfortable movement but not so large that the guinea pig might attempt running or jumping before healing is complete.

Quality of life maintenance focuses on keeping guinea pigs engaged and comfortable despite activity limitations. Social interaction with bonded companions should continue when possible, with monitoring to prevent rough play that could cause reinjury. Gentle handling and lap time provides social enrichment without physical demands. Environmental enrichment appropriate to current activity restrictions maintains mental stimulation through foraging opportunities and safe exploration. Comfortable rest areas with appropriate temperature control ensure relaxation without discomfort. Regular quality of life assessment using established criteria guides ongoing management decisions.

Monitoring and ongoing care requirements include regular assessment of healing progress and long-term function. Daily observation tracks mobility, weight bearing, and comfort levels. Regular gentle examination of the injured area notes changes in swelling, heat, or sensitivity. Weight monitoring ensures adequate nutrition during recovery. Watch for signs of complications including increased lameness, new swelling, or behavioral deterioration. Documentation of observations provides valuable information for veterinary consultations. Follow-up veterinary appointments as scheduled allow professional assessment and treatment adjustments. Long-term monitoring continues after apparent recovery to detect any developing problems.

Caregiver support and resources help maintain appropriate care throughout recovery and beyond. Understanding that tendon healing requires time and patience helps caregivers maintain consistent care throughout the process. Connecting with guinea pig communities provides support and advice from others managing similar injuries. Educational resources help caregivers understand safe housing design and handling practices to prevent future injuries. Maintaining communication with the treating veterinarian ensures questions can be answered and concerns addressed promptly. Financial planning for potential ongoing care needs ensures treatment continuity. Self-care for caregivers prevents burnout during the potentially lengthy recovery period.

Tendon injuries can affect guinea pigs of any breed, as susceptibility relates primarily to environmental and individual factors rather than breed-specific characteristics. No particular breed has been identified as having genetically weaker tendons or higher rates of tendon injury compared to others. The Abyssinian, American, Peruvian, Silkie, Teddy, Texel, and all other breeds share similar tendon structure and vulnerability to traumatic injury. Satin guinea pigs, despite their predisposition to osteodystrophy affecting bone, are not known to have specific tendon abnormalities, though any condition affecting overall connective tissue health could theoretically impact tendon integrity.

Risk factors for tendon injuries relate to individual characteristics and husbandry rather than breed genetics. Very active guinea pigs of any breed face higher injury risk simply due to more opportunity for accidents during vigorous movement. Obesity increases mechanical stress on tendons regardless of breed. Young guinea pigs across all breeds may be more accident-prone due to high activity levels and inexperience. Senior guinea pigs may have age-related degenerative changes in tendons regardless of breed background. Guinea pigs with vitamin C deficiency have weakened connective tissues making tendon injuries more likely regardless of breed. Housing conditions and handling practices affect injury risk identically across all breeds.

Screening recommendations apply equally to all guinea pig breeds since genetic predisposition is not a significant factor. All guinea pig enclosures should be evaluated for safety hazards including fall risks, entrapment points, and unstable furnishings regardless of what breed is housed. Proper handling techniques should be practiced by all guinea pig caregivers. Nutritional assessment ensuring adequate vitamin C intake applies universally. All guinea pigs showing lameness or mobility changes should receive prompt veterinary evaluation. Breeders and rescues should educate new owners about safe housing design and handling practices. Weight management to prevent obesity protects tendons in all guinea pigs. Maintaining awareness of tendon injury prevention and signs enables early intervention regardless of breed.

Commonly co-occurring conditions with tendon injuries often result from the same traumatic incident or share contributing factors. Bone fractures frequently accompany tendon injuries when trauma is severe, as the forces damaging tendons may also break bones. Ligament injuries involving the supportive structures within joints may occur alongside tendon damage from falls or twisting injuries. Muscle strains commonly co-occur since muscles and their tendons work together and may both be damaged by the same forces. Joint injuries including dislocations may accompany tendon damage. Soft tissue contusions and bruising typically surround significant tendon injuries. Vitamin C deficiency may underlie tendon injuries and cause concurrent problems including joint disease and bleeding disorders.

Conditions with similar symptoms that must be differentiated from tendon injuries include various other causes of lameness and mobility problems. Bone fractures produce similar lameness and pain but involve different structures requiring different treatment approaches. Arthritis causes chronic lameness and joint pain that might be confused with tendon problems, particularly in older guinea pigs. Abscesses in limbs create painful swelling that could be mistaken for tendon injury. Bumblefoot (pododermatitis) causes foot pain and lameness from a different mechanism. Neurological conditions affecting limb function produce weakness and movement abnormalities without primary tendon involvement. Spinal problems can cause hindquarter dysfunction resembling limb tendon injury. Accurate diagnosis ensures appropriate treatment.

Potential complications arising from tendon injuries can significantly impact long-term outcomes if not addressed appropriately. Chronic lameness may persist if tendon healing is incomplete or produces restrictive scar tissue. Tendon contracture can develop if proper range of motion is not maintained during healing. Compensatory injuries to other limbs may occur from altered weight bearing during recovery. Joint stiffness may develop secondary to prolonged immobility. Muscle atrophy affects limbs where tendon injury limits normal muscle use. Adhesions between healing tendons and surrounding tissues may limit mobility. Reinjury risk remains elevated for healed tendons, particularly if the guinea pig returns to hazardous housing. Understanding these potential complications guides prevention efforts and monitoring during and after recovery.