Phalen's landmark 1966 case series reports 17 years of experience diagnosing and treating carpal tunnel syndrome in 654 hands across 439 patients at the Cleveland Clinic. It systematically defines the clinical presentation, provocative tests, pathological findings, and outcomes of conservative and surgical management. This is the paper that established the clinical framework for CTS still used today.
When a middle-aged woman presents with nocturnal hand numbness and tingling in the thumb, index, and long fingers — sparing the small finger. The diagnosis is CTS until proven otherwise. Phalen's series codified exactly this picture and gave us the two provocative tests we still use to confirm it at the bedside.
The management hierarchy this paper established is still the standard: splinting and activity modification for mild cases, steroid injection as a diagnostic-therapeutic trial, and transverse carpal ligament release for refractory or advanced cases. Skip injections and go straight to surgery when thenar atrophy is present. Phalen was explicit that atrophy is an absolute surgical indication.
Do not counsel patients that prolonged thenar atrophy is irreversible. Phalen documented full recovery of thenar muscle bulk after 3 or more years of atrophy following timely decompression. A fact worth knowing when a patient presents late.
The Cotton-Loder position (acute volar flexion with ulnar deviation) used in Colles' fracture casting is condemned in this paper for exactly the mechanism Phalen describes: wrist flexion squeezes the median nerve between the transverse carpal ligament and the adjacent flexor tendons.
Phalen's landmark 1966 case series reports 17 years of experience diagnosing and treating carpal tunnel syndrome in 654 hands across 439 patients at the Cleveland Clinic. It systematically defines the clinical presentation, provocative tests, pathological findings, and outcomes of conservative and surgical management. This is the paper that established the clinical framework for CTS still used today.
When a middle-aged woman presents with nocturnal hand numbness and tingling in the thumb, index, and long fingers — sparing the small finger. The diagnosis is CTS until proven otherwise. Phalen's series codified exactly this picture and gave us the two provocative tests we still use to confirm it at the bedside.
The management hierarchy this paper established is still the standard: splinting and activity modification for mild cases, steroid injection as a diagnostic-therapeutic trial, and transverse carpal ligament release for refractory or advanced cases. Skip injections and go straight to surgery when thenar atrophy is present. Phalen was explicit that atrophy is an absolute surgical indication.
Do not counsel patients that prolonged thenar atrophy is irreversible. Phalen documented full recovery of thenar muscle bulk after 3 or more years of atrophy following timely decompression. A fact worth knowing when a patient presents late.
The Cotton-Loder position (acute volar flexion with ulnar deviation) used in Colles' fracture casting is condemned in this paper for exactly the mechanism Phalen describes: wrist flexion squeezes the median nerve between the transverse carpal ligament and the adjacent flexor tendons.