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EPIPHYSEAL GROWTH PLATE CLOSURE IN CATS First broadcast on www.provet.co.uk Focus on Orthopaedics Week |
This information is provided by Provet for educational purposes only.
You should seek the advice of your veterinarian if your pet is ill as only he or she can correctly advise on the diagnosis and recommend the treatment that is most appropriate for your pet.
In evaluating radiographs of the skeleton of young animals it is important to know the usual closure times of growth plates in order to decide whether there is premature, normal or delayed closure.
The following table lists the range and average closure times (in days after birth) :
TABLE - CATS
| Growth Plate | Closure - Range (days) | Closure - Average (days) |
| FORELIMB | ||
| Tuber scapulae | 112 | |
| Proximal humeral epiphysis | 547-730 | |
| Medial and lateral humeral condyles | 98 | |
| Medial humeral epicondyle | 112-126 | |
| Proximal radial epiphysis | 196 | |
| Distal radial epiphysis | 406-616 | |
| Olecranon tuberosity | 266-364 | |
| Distal ulnar epiphysis | 406-700 | |
| Intermediate and radial carpal bones | ||
| Central carpal bone | ||
| Epiphysis of accessory bone | 112-126 | |
| Proximal metacarpal epiphysis | ||
| Distal metacarpal epiphysis II-V | 203-280 | |
| Proximal phalangeal epiphysis I | ||
| Proximal phalanx proximal epiphysis II-V | 126-154 | |
| Middle phalanx. proximal epiphysis II-V | 112-140 | |
| Sesamoids | 140 | |
| PELVIS | ||
| Acetabulum | ||
| Ilium | ||
| Ischium | ||
| Pubis | ||
| Tuber ischii | ||
| HINDLIMB | ||
| Femoral head | 210-280 | |
| Femur - greater trochanter | 196-252 | |
| Femur - lesser trochanter | 238-308 | |
| Distal femoral epiphysis | 378-532 | |
| Proximal tibial epiphysis | 350-532 | |
| Tibial tuberosity | 350-532 | |
| Distal tibial epiphysis | 280-364 | |
| Medial tibial malleolus | ||
| Proximal fibular epiphysis | 378-504 | |
| Distal fibular epiphysis | 280-392 | |
| Fibular tarsal bone | 210-364 | |
| Tarsal bones III and IV | ||
| Distal metatarsal epiphysis II-V | 224-308 | |
| Proximal phalangeal epiphysis II-V | 126-168 | |
| Middle phalanx - proximal epiphysis II-V | 126-154 | |
| Metatarsophalangeal sesamoid | 70-112 | |
| Gastrocnemius - lateral sesamoid | 70-112 | |
| Gastrocnemius - medial sesamoid | 154 | |
| Popliteal muscle sesamoid | 112-140 |
(Modified after Smith RN, JSAP 10:523 1969)
Last updated : January 2016