ORTHOPEDICSThe 5 Ps of com-
partment syndrome:
Pain (most common
symptom)
Paresthesias
Pallor
Paralysis
Pulselessness (late
finding!)■ Talus fracture
■ Proximal humerus fracture
■ Infection
■ Vascular injury or hemorrhage
■ Nerve injury: Pain, paresthesias, weakness, or paralysis
■ Soft-tissue or organ injury
■ Compartment syndrome
■ Fat emboli syndrome
■ Most common afterlong bone and pelvic fractures
■ See petechiae, altered mental status, hypoxia.
■ Volkmann ischemic contracture
■ Flexion contracture of hand/wrist due to untreated forearm compart-
ment syndrome and resultant muscle ischemia.
■ Reflex sympathetic dystrophy (complex regional pain syndrome)
INJURIES TO THE UPPER EXTREMITIESA football player snags his index finger in another player’s jersey and finds
it difficult to catch the football for the rest of the game. When you immobi-
lize the PIP and MCP joints in extension, he is no longer able to flex the
DIP joint. What is injured and how is it treated?
The football player has a flexor digitorum profundus (FDP) tendon avulsion,
or ”jersey finger,” which is treated by splinting the finger in a comfortable posi-
tion and referral to orthopedics as soon as possible.Digits
AMPUTATED DIGITS
■ Require immediate hand surgery consultation
■ Wrap in sterile gauze soaked in normal saline (NS) and surround with plastic
bag, then place bag with digit(s) in ice water.
TABLE 4.1. Common Injuries and Associated Neurovascular Complications
TYPES OFFRACTURES ORDISLOCATIONS NEUROVASCULARCOMPLICATIONSAnterior shoulder dislocation Axillary nerve and artery injury
Musculocutaneous nerve injuryExtension supracondylar fracture Brachial artery injury
Posterior elbow dislocation Ulnar and median nerve injury
Radial nerve injury for supracondylar fractureKnee dislocation Popliteal artery injury
Peroneal and tibial nerve injuryHumeral shaft injury Radial nerve injuryMedial epicondylar fracture Ulnar nerve injuryLateral tibial plateau fracture Peroneal nerve injury